ADC/DAC
מוצרים (3,100+)
COP438CN - 8-Bit Serial I/O SAR ADC, 20-DIP | Texas Instruments
The Texas Instruments COP438CN is a 8-bit, serial I/O, successive-approximation-register (SAR) analog-to-digital converter supplied in a 20-pin through-hole DIP package. It integrates an 8-bit ADC core with a serial interface suitable for microcontroller- and DSP-based data acquisition systems, and it is specified for commercial-grade operating temperature ranges. The part is listed under Texas Instruments' data acquisition product family and was originally developed by National Semiconductor before TI's acquisition of that business. A SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of data converter that uses a binary-search algorithm and an internal precision DAC to convert an analog input voltage into a digital code in a single conversion cycle of fixed duration. SAR ADCs sit in the broader hierarchy of data converters (ADC -> data converter -> data acquisition IC -> signal chain -> mixed-signal semiconductor), and they are favored for applications requiring deterministic latency, modest resolution, and low power consumption, particularly in multiplexed multi-channel systems and embedded instrumentation. Key features of the COP438CN include 8-bit resolution, a serial output interface (simplifying board routing and reducing pin count versus parallel-output ADCs), and a 20-pin PDIP through-hole package compatible with breadboard prototyping and legacy card-edge assemblies. The device is temperature-graded commercial, making it suitable for indoor equipment, laboratory instrumentation, and industrial-control cards where through-hole mounting is preferred. Per the part description in distributor catalogs, the converter is described as an "8b Serial I/O A/D" supporting serial data transfer to a host processor. The architecture is based on a charge-redistribution SAR loop with internal sample-and-hold, which captures a snapshot of the input voltage at the start of each conversion. Because SAR ADCs do not require an external clock source for the conversion itself, only for serialization and host handshaking, the COP438CN is straightforward to interface with synchronous serial ports (SPI/MICROWIRE-compatible) on most microcontrollers. Its modest 8-bit resolution targets applications such as sensor front-ends, panel-meter readouts, process-variable monitoring, and battery-management telemetry where 256 discrete quantization levels are sufficient. Typical applications include portable instrumentation, panel meters, digital thermometers and thermocouple front-ends, transducer signal conditioning, process-control analog input modules, and battery monitoring. The DIP-20 package is well suited to through-hole assembly on legacy PCBs, evaluation boards, and educational/development platforms. The combination of compact 8-bit conversion and a simple serial interface makes the COP438CN an effective choice for cost-sensitive designs that require reliable, deterministic analog-to-digital conversion. When designing with this device, note that the part was originally manufactured by National Semiconductor; verify on the datasheet whether the device uses a single +5V analog supply or a wider range, and add 100 nF decoupling on the supply pin within 5 mm of the package. The serial interface lines should be kept short and routed away from switching nodes to avoid coupling glitches into the SAR comparator. A precision external reference of 5.0 V will provide the best linearity for an 8-bit converter. This page synthesizes distributor pricing, datasheet links, and same-brand drop-in alternatives not consolidated on any single distributor page, providing a one-stop reference for engineers evaluating or sourcing the COP438CN.
CS4225-BL Stereo ADC and Quad DAC | Cirrus Logic
The Cirrus Logic CS4225-BL is a six-channel digital audio conversion system combining one stereo analog-to-digital converter and four digital-to-analog converters in a 44-pin PLCC package measuring 16.59 mm by 16.59 mm. The device uses delta-sigma conversion techniques and is intended for CD-quality music, FM-radio-quality music, telephone-quality speech, surround-sound, and automotive audio applications. A digital audio converter is an integrated circuit that converts audio between analog and digital signal domains. An ADC samples an analog input and represents it as digital data, while a DAC converts digital playback data into analog voltage signals. The CS4225 belongs to the broader digital-audio-converter hierarchy and integrates multiple conversion channels into one device, reducing the number of separate converter packages required in a multichannel audio system. The principal verified feature set includes two ADC channels and four DAC channels, producing six audio conversion channels in total. The converter architecture uses delta-sigma conversion techniques, a methodology commonly selected for high-resolution audio signal processing. Separate analog and digital power domains are identified in the datasheet, including a +5 V analog supply, a +5 V digital supply, analog-ground connections, and a digital-ground connection. The CS4225-BL is packaged as a 44-pin PLCC measuring 16.59 mm by 16.59 mm. This relatively large leaded package provides direct access to analog, digital, clock, data, control, and power pins, making it practical for through-hole assembly and legacy audio equipment. The supplied search results identify the device as an audio sample-rate converter from Cirrus Logic, although the complete numeric conversion-performance table is not included in the verified data supplied for this page. Typical uses include CD-quality music systems, FM-radio-quality music equipment, telephone-quality speech processing, surround-sound systems, and automotive audio platforms. The four DAC channels can serve multiple playback zones or output stages, while the stereo ADC channels can capture left and right analog inputs. Integration is especially useful when a design needs several conversion paths but has limited board space or requires one consolidated mixed-signal audio device. Designers should preserve separation between the analog and digital supply and ground networks, follow the datasheet's recommended decoupling and layout guidance, and verify all interface timing and signal levels before layout release. The provided data confirms the +5 V analog and digital supplies, but does not specify the required capacitor values, clock frequency, sample-rate limits, dynamic range, channel-to-channel isolation, or full pin assignments. Those values must be confirmed in the manufacturer datasheet before a new layout is released. This product page consolidates the verified distributor identification, package information, converter configuration, power-domain details, source links, and engineering application guidance. It also distinguishes verified facts from unavailable parameters, preventing unsupported performance claims while helping engineers evaluate the CS4225-BL for legacy multichannel audio designs.
CS4227-KQ - Six-Channel 20-Bit Audio Codec | Cirrus Logic
Cirrus Logic CS4227-KQ is a single-chip audio codec with a 20-bit resolution, stereo analog-to-digital conversion, six digital-to-analog channels, and a 44-pin TQFP package measuring 10 mm by 10 mm. It operates from a +5 V supply and uses delta-sigma conversion techniques to integrate multiple audio conversion functions into one device. Independent volume controls are provided for each of the six D/A channels, allowing individual output-level adjustment in multichannel audio systems. An audio codec is a mixed-signal semiconductor that combines analog input conversion, digital audio processing, and analog output reconstruction. The CS4227 belongs to the broader ADC/DAC and audio-codec hierarchy, where the stereo ADC captures analog audio for digital processing and the six DAC channels reconstruct digital audio as analog signals. Integrating these functions can reduce the number of separate converters required in a multichannel audio system while simplifying synchronization and control. The CS4227-KQ provides stereo analog-to-digital conversion and six digital-to-analog outputs at 20-bit resolution. Its six independently selectable output volume controls are useful when different channels require separate attenuation or gain adjustment. The codec is designed around a +5 V supply, and the KQ ordering code identifies the 44-pin TQFP package offered for an ambient operating range of -10 °C to +70 °C. The device uses delta-sigma conversion to implement the analog-to-digital and digital-to-analog functions. This architecture is well suited to digital audio because it supports high-resolution conversion, integrated digital control, and multiple outputs in a single package. Its serial interface and converter architecture make it a candidate for professional audio equipment, multichannel recording systems, sound cards, mixer designs, and other systems requiring simultaneous playback and capture functions. A practical multichannel design can use the stereo ADC section for line or microphone-oriented analog inputs and the six DAC channels for independent playback outputs. Signal conditioning, grounding, and reference or clock implementation must be designed around the manufacturer’s recommended application circuit. Because the codec contains both analog and digital sections, converter performance also depends on careful supply partitioning, trace routing, and control of analog and digital return currents. The primary design tradeoff is functional consolidation versus specialized converter performance. Integrating eight conversion channels into one IC can simplify a multichannel audio board, but designers must still allocate board area for support components and must respect the recommended layout for analog inputs, digital interfaces, supply connections, and exposed thermal features. The 10 mm by 10 mm TQFP package is larger than many compact audio converters, so footprint planning remains important. This guide consolidates the confirmed codec architecture, package information, temperature range, interface considerations, application guidance, and qualified same-footprint variant information into an engineering-focused selection reference. It also distinguishes confirmed drop-in coverage from broader functional codecs, helping designers avoid assuming that a similar channel count automatically guarantees pin compatibility.
CS4461-CZZR - 24-bit Multi-Bit ADC for Class-D PSR Feedback | Cirrus Logic
The Cirrus Logic CS4461-CZZR is a complete multi-bit Delta-Sigma analog-to-digital converter (ADC) designed specifically for class-D amplifier real-time power supply rejection (PSR) feedback, packaged in a 24-pin TSSOP and rated for automotive-grade -40C to +85C operation. The part integrates sampling and A/D conversion, generating digital data for input to a class-D modulator with real-time PSR feedback, featuring an advanced multi-bit Delta-Sigma modulator that delivers differential analog inputs with excellent noise rejection and supports a maximum sampling rate of 7.5 MSPS. An ADC (Analog-to-Digital Converter) is a semiconductor device that samples continuous analog voltage signals and converts them into discrete digital codes, serving as the critical bridge between the analog real world and digital signal processing. Multi-bit Delta-Sigma ADCs, like the CS4461, use oversampling and noise shaping to achieve high dynamic range without requiring steep external anti-alias filters, and are placed within a hierarchy of: ADC -> data converter -> mixed-signal IC -> semiconductor. The CS4461 fits within the power management and audio signal-chain ecosystem, particularly inside class-D amplifier feedback loops. Key features of the CS4461 include advanced multi-bit Delta-Sigma architecture, real-time feedback of power supply conditions (both AC and DC components), a filterless digital output resulting in very low signal delay, 135 mW typical power consumption, and support for multiple logic levels. The filterless digital output is critical for class-D applications because it allows the modulator loop to react within microseconds to rail disturbances, rather than waiting for a digital low-pass filter response. From a technical depth perspective, the CS4461 employs a multi-bit Delta-Sigma architecture that performs multi-bit conversion at up to 7.5 MHz clock rates while providing excellent common-mode noise rejection through fully differential analog inputs. The serial digital output stream is consumed by a companion class-D modulator IC that uses the PSR feedback data to correct supply-induced distortion in real time, rather than the slower post-processing approach used in older designs. A customer demonstration board (CDB44800) is available from Cirrus Logic for evaluation and implementation reference. Typical applications include class-D audio amplifiers with integrated power supply rejection, automotive head units and infotainment amplifiers, professional powered speaker amplifiers, home theater receivers, and any audio system requiring real-time correction of supply rail disturbances. The 7.5 MSPS capability ensures the feedback loop bandwidth is sufficient to track audio-band disturbances (up to 20 kHz) and beyond. When designing with the CS4461, keep the device in reset until all power supplies and clocks are stable to ensure reliable power-up. The serial data interface must be properly framed with the companion class-D modulator, and the analog inputs should be AC-coupled if the common-mode voltage of the supply being monitored differs from the CS4461 reference. The automotive-grade temperature range of -40C to +85C eliminates the need for additional thermal qualification in vehicle audio systems. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the Cirrus Logic datasheet alone, with verified cross-references to 24-pin TSSOP equivalents sourced from distributor parametric databases.
CS5012A-BL7Z - 12-bit 100kSPS Self-Calibrating SAR ADC | Cirrus Logic
The Cirrus Logic CS5012A-BL7Z is a 12-bit monolithic self-calibrating successive-approximation analog-to-digital converter with a 7.2 us conversion time, supporting throughput rates up to 100 kSPS in a 44-pin PLCC package. It is part of the pin-compatible CS5012A/14/16 family from Cirrus Logic and features an on-chip DAC, calibration microcontroller, oscillator, comparator, sample-and-hold buffer, and 3-state microprocessor-compatible I/O. The serial output option is enabled in this BL7Z variant. A successive-approximation register (SAR) ADC is a sampling data converter that resolves each bit of the output code in a single clock cycle by switching an internal binary-weighted capacitor DAC against the input voltage through a comparator. This topology combines moderate speed with deterministic latency, very low power consumption, and the absence of pipeline delay, which is why SAR converters dominate precision industrial, instrumentation, and medical signal-chain designs. The CS5012A family builds on this principle with a self-calibration routine that keeps offset and full-scale error within 1/2 LSB and guarantees no missing codes at the 12-bit level. Key specifications include 12-bit resolution, 100 kSPS maximum throughput, a single 5 V analog supply (per family datasheet), unipolar/bipolar input ranges, and 16-/14-/12-bit pin-compatible variants (CS5016/14/12A). The CS5012A-BL7Z sub-version additionally exposes a serial interface option, allowing the same die to be used in low-pin-count microcontroller or DSP front ends. Internal calibration runs automatically on demand, removing the manual trim step that older SAR parts required at production. Architecturally the converter integrates a fast-slewing on-chip track-and-hold buffer, so the input signal is re-acquired immediately after each conversion. This architecture permits true 100 kSPS throughput without an external buffer amplifier. The 3-state outputs and a single-chip wait/busy handshake make the part drop-in friendly for legacy 8051, 68HC11, and DSP host designs. Typical applications include precision industrial process control loops, weigh-scale and load-cell digitizers, multi-channel data-acquisition front ends, audio-bandwidth instrumentation, portable medical instrumentation, and legacy 12-bit upgrade paths in motor control and power metering where CS5012A-BL7Z is already on the BOM. When laying out a board, treat the AVCC/AGND pair as a star: place a 10 uF tantalum plus 0.1 uF ceramic directly at the analog supply pin, and route the analog input trace away from the digital outputs to avoid coupling. The self-calibration routine assumes the supply is settled; power up, wait 50 ms, then issue CAL before the first conversion for published linearity. This page synthesizes live distributor inventory, parametric drop-in alternatives, and PCB-level design notes that are not duplicated in the manufacturer datasheet.
CS5126-KL - 16-Bit 100 kHz Stereo ADC | Cirrus Logic
Cirrus Logic CS5126-KL is a 16-bit CMOS analog-to-digital converter designed for stereo and monaural digital-audio systems, supporting two channels at up to 50 kHz per channel or one channel at up to 100 kHz in a 28-pin PLCC package. The converter uses successive-approximation conversion and provides a serial interface for digital-audio signal processing. An audio ADC is a mixed-signal semiconductor that converts left- and right-channel analog audio into 16-bit digital samples for storage, transmission, mixing, or playback. Within the broader hierarchy, the CS5126-KL is an ADC and data-converter IC, while its analog front end, sampling system, and serial output place it specifically in the digital-audio converter category. Its dual-channel and high-speed modes let one component serve stereo playback, recording, broadcast, communications, and consumer-electronics systems. Key verified features include 16-bit resolution, two-channel operation, sampling rates up to 50 kHz per channel, and single-channel operation up to 100 kHz. The -KL ordering is associated with the 28-pin PLCC package identified by distributor and datasheet-index records. According to the available datasheet descriptions, the converter can also provide four digital output signals—SSH1, SSH2, TRKL, and TRKR—for controlling external sample-and-hold amplifiers when simultaneous sampling is required. The CS5126 family uses a CMOS implementation and successive-approximation architecture. Successive approximation converts each sampled analog level through successive bit decisions, producing a 16-bit result for digital-audio processing. Separate left and right channel data paths support conventional stereo operation, while the digital outputs offer additional control for synchronized external sampling arrangements. The supplied records do not specify input-referred noise, distortion, dynamic range, clock frequency, or analog supply requirements. Typical uses include professional and consumer audio capture, digital mixing consoles, multimedia playback equipment, audio communications, broadcast processing, and stereo measurement systems. In a stereo source, the converter can sample both channels at 50 kHz each; for a single high-rate signal path, it can operate at up to 100 kHz. This flexibility allows the same converter to address standard-rate audio streams or faster single-channel acquisition requirements. Designers should preserve the converter’s specified analog and digital grounding strategy, provide compliant clocking and external bypass capacitors, and treat the analog input path as sensitive to noise. When simultaneous left and right conversion is required, the SSH1, SSH2, TRKL, and TRKR outputs can control external sample-and-hold circuitry. Detailed timing, electrical limits, and pin-level connections must be confirmed against the manufacturer datasheet before layout release. This page consolidates verified distributor availability, package and conversion-mode information, source links, application guidance, and explicit data gaps. It also distinguishes the supported stereo 50 kHz-per-channel configuration from the 100 kHz single-channel mode, helping engineers plan signal-chain bandwidth without inferring unsupported performance figures.
CS5126-KP - 16-Bit Stereo Audio ADC, 100 kHz | Cirrus Logic | DIP-28
The Cirrus Logic CS5126-KP is a 16-bit, stereo audio analog-to-digital converter for digital audio, sampling at up to 100 kHz, supplied in a 28-pin through-hole DIP package and specified for a 4.5 V to 5.5 V analog and digital supply range. It converts two simultaneous analog audio channels into a serial digital bitstream for downstream DSP, decoding, and recording systems. An audio ADC is a specialized analog-to-digital converter optimized for audio bandwidth and dynamic range rather than for general-purpose instrumentation. Within the signal-chain hierarchy, a converter of this type sits at the front end of a digital audio path: analog microphone or line-level signal -> audio ADC -> oversampling/delta-sigma digital filter -> digital audio stream. The CS5126 sits in the ADC stage, ahead of any DSP or DAC in the chain, and its job is to convert the analog world into a clocked digital representation without adding audible noise or distortion. Because the part is specified for digital audio, its key characteristics are audio-centric: 16-bit resolution gives a theoretical dynamic range of 96 dB, the 100 kHz conversion rate supports professional 48 kHz, 96 kHz, and related audio sample rates with margin for oversampling filter requirements, and the stereo architecture allows simultaneous left/right capture in a single device. Supply operation from 4.5 V to 5.5 V allows the part to sit directly on legacy 5 V audio rails, and the DIP-28 through-hole package simplifies prototyping, laboratory instrumentation, and repair work on boards that were not designed for fine-pitch assembly. Mechanically and electrically the CS5126-KP is a through-hole DIP-28 device, so it is assembled with conventional insertion rather than reflow. That makes it a natural choice for hand-built audio measurement equipment, educational and laboratory setups, converter research fixtures, and repair or modernization of older 5 V analog audio subsystems where surface-mount parts would be impractical. Typical uses include stereo audio capture for broadcast and studio monitoring equipment, multichannel digital audio mixers built around legacy DSP cores, headphone and line-level measurement fixtures, and audio DSP front-end boards in industrial and instrument products. Companion parts in such designs are typically low-noise audio DACs and audio codec ICs, line-level input drivers, and the serial digital interface transceivers used to move the audio data bus between boards. Design consideration: this is a legacy-technology part on a 5 V analog rail, so input buffering and grounding dominate the noise budget. Keep the analog inputs short, shield them from the digital output bus, and respect the manufacturer's recommended filter and decoupling network around the analog supply pins. This page consolidates distributor pricing, verified package and supply information, drop-in same-family alternatives such as the CS5126-EP and CS5126-IP, and practical design guidance that is not collected together on typical distributor catalog pages.
CS5201-HGZ - IC DS Modulator w/Test DAC | Cirrus Logic Audio DAC
The Cirrus Logic CS5201-HGZ is an audio digital-to-analog converter IC integrating a Delta-Sigma (DS) modulator with a dedicated test DAC, supplied in a lead-free, surface-mount HGZ package. The CS5201-HGZ is specified for use in professional and consumer digital audio playback designs, providing the over-sampled bitstream or analog test output that downstream reconstruction stages or characterization fixtures require. The Cirrus Logic CS5201-HGZ is part of the legacy CS5201 audio converter family from Cirrus Logic, Inc. An audio D/A converter (DAC) is a semiconductor device that converts digital audio samples into a corresponding analog waveform. The Delta-Sigma modulator approach uses oversampling and noise shaping to push quantization noise out of the audio band, achieving high dynamic range and excellent linearity. DACs sit within the audio signal chain between the digital audio source (DSP, S/PDIF receiver, USB audio interface) and the analog output stage, where they form a critical part of the power management and signal processing hierarchy in any audio playback system. Key features of the CS5201-HGZ include integration of the DS modulator with a separate test DAC for production-test access, serial digital audio input, an analog output stage optimized for low total harmonic distortion, and operation from a standard audio supply rail. The HGZ package is a small-outline surface-mount form factor suitable for high-density PCB layouts in compact audio products. The CS5201-HGZ architecture leverages Cirrus Logic's mature Delta-Sigma conversion IP, combining oversampling, multi-bit noise shaping, and an internal test DAC path that allows characterization without disturbing the main audio output. This separation between the production bitstream and the analog test output streamlines factory calibration of audio playback assemblies. Typical applications for the CS5201-HGZ include professional audio equipment, broadcast playback systems, digital audio mixing consoles, A/V receivers, high-end consumer audio CD/DVD players, and bench/ATE characterization fixtures for audio electronics. The on-chip test DAC makes it particularly attractive for high-volume production lines requiring repeatable analog verification. When designing with this device, pay attention to the recommended decoupling network on the supply pin (typically 10uF bulk + 0.1uF ceramic), the layout of the analog ground plane to isolate the modulator from digital switching noise, and adherence to the datasheet's specified load on the analog output. The HGZ package's exposed thermal pad (if present) should be soldered to a copper pour for mechanical and thermal performance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the Cirrus Logic CS5201-HGZ audio D/A converter IC, complementing the manufacturer datasheet with engineer-focused selection guidance.
CS5320-KL - 24-Bit Sigma-Delta ADC | Cirrus Logic
Cirrus Logic Inc. CS5320-KL is a 24-bit, single-input sigma-delta analog-to-digital converter chipset intended for high-resolution measurement of signals below 1500 Hz. It uses a 28-pin PLCC package measuring 11.51 mm by 11.51 mm and supports variable-bandwidth conversion for precision signal-chain applications. The commercial-grade chipset combines high-resolution conversion with analog input conditioning functions intended for demanding measurement systems. An analog-to-digital converter, or ADC, converts a continuous analog voltage into a numeric representation for processing, storage, transmission, or control. A sigma-delta ADC uses oversampling, noise shaping, and digital filtering to achieve high resolution and dynamic range from a relatively narrow bandwidth. Within the semiconductor hierarchy, the CS5320-KL is an ADC, an analog mixed-signal IC, and a data-conversion device. Its low-frequency signal focus distinguishes it from wideband flash and successive-approximation converters. The CS5320-KL provides a 24-bit conversion resolution, one analog input channel, sigma-delta modulation, and variable-bandwidth operation. Its intended signal range below 1500 Hz makes it appropriate for precision measurement rather than communications waveform capture. The 28-pin PLCC package provides a substantial lead count for reference, analog-input, digital-interface, control, and supply connections, while its 11.51 mm by 11.51 mm body supports conventional through-hole board assembly. The CS5320 and CS5321 chipset architecture is designed for high dynamic range measurement below 1500 Hz. A dedicated analog input path supports external filtering and reference connections, while variable-bandwidth operation lets a designer balance output data rate against noise performance and system throughput. The analog-to-digital conversion architecture is suited to slow or quasi-static measurements where maximum resolution is more important than high-frequency sampling performance. Typical uses include industrial process monitoring, precision instrumentation, audio and communications measurement, laboratory data acquisition, and embedded control systems that need a high-resolution conversion result. A system using the CS5320-KL would typically provide the reference and analog biasing required by the converter, condition the sensor or input signal, and route the digital conversion output to a controller or dedicated interface chipset. Board design must preserve the accuracy of the reference and analog signal paths. Keep analog and digital return currents separated, place input and reference decoupling close to their associated pins, and use an anti-aliasing filter appropriate to the selected converter bandwidth. The PLCC package is not a fine-pitch surface-mount solution, so designers should also verify assembly temperature, lead coplanarity, and available PCB footprint before committing to a layout. This product page combines the converter's core architecture and packaging details with practical comparison guidance, application fit criteria, and design considerations. It also distinguishes the verified CS5320-KL configuration from related chipset references without treating merely similar ADC functions as pin-compatible replacements. Buyers can review current commercial terms through the Request a Quote form on this page.
CS5321-BL 24-Bit Variable-Bandwidth ADC | Cirrus Logic
The Cirrus Logic CS5321-BL is a 24-bit variable-bandwidth sigma-delta analog-to-digital converter chipset for high-resolution measurement of signals below 1500 Hz. The device provides two analog inputs and is packaged in a surface-mount 28-pin PLCC measuring 11.51 mm by 11.51 mm. Its sigma-delta architecture is intended for precision data acquisition rather than high-speed waveform capture. An analog-to-digital converter, or ADC, converts an analog input voltage into a numeric representation for processing, measurement, display, or storage. The CS5321-BL belongs to the ADC and DAC product hierarchy, specifically the delta-sigma ADC category. Its variable-bandwidth characteristic allows the measurement bandwidth to be adjusted for the signal and resolution requirements of the application. The primary feature of the CS5321-BL is its 24-bit digital output resolution. It accepts two analog input channels and uses a sigma-delta conversion approach optimized for high dynamic range and low-frequency measurement. The manufacturer documentation describes the chipset as intended for very-high-resolution measurements of signals below 1500 Hz, making it relevant to industrial instrumentation, sensor measurement, and precision analog acquisition systems. The CS5321-BL is identified as part of a chipset architecture rather than a conventional standalone converter. The circuit includes a modulator and digital-filter-related functions that work together to produce the 24-bit representation. A documented application note compares the ADS1201 modulator with CS5321 operation and describes using CS5322 with the ADS1201 to obtain the same 24-bit digital representation, illustrating the functional relationship between the modulator and digital filtering stages. Typical applications include precision bridge and pressure sensing, low-level process instrumentation, laboratory measurement systems, and industrial monitoring equipment. In these systems, slow-changing sensor outputs benefit from high resolution and adjustable bandwidth, while the 2-input arrangement supports multiplexed or differential measurement when configured appropriately by the surrounding circuitry. Board design should follow the manufacturer’s pin-description and reference-circuit guidance. PLCC devices require careful lead alignment, adequate solder-joint inspection, and suitable thermal relief beneath the package. Power and analog ground paths should be arranged to minimize digital return current through sensitive analog inputs, while filtering and clock implementation must follow the recommended chipset connections. This page organizes the CS5321-BL’s verified technical identity, sourcing information, application guidance, and comparison criteria. It also distinguishes verified drop-in alternatives from broader functional equivalents so engineers can assess PCB compatibility before changing a production design.
CS5324-BL 12-Bit Sigma-Delta ADC, 28-PLCC | Cirrus Logic
The Cirrus Logic CS5324-BL is a 12-bit, single-input sigma-delta analog-to-digital converter housed in a 28-pin PLCC (11.51 mm x 11.51 mm) J-lead surface-mount package. It converts an analog input into a high-resolution digital output using a sigma-delta modulation architecture, a technique that trades conversion speed for noise performance and linearity. A sigma-delta ADC is a type of analog-to-digital converter that oversamples the input signal and shapes quantization noise into the out-of-band region, where it can be removed by a digital decimation filter. Because the modulator operates at a much higher internal clock rate than the output rate, the converter achieves fine resolution without demanding a precision resistor ladder, making it well suited to audio, measurement, and industrial instrumentation signal chains. In the signal-chain hierarchy it sits between an analog front end (sensor, op-amp) and a digital back end (microcontroller, DSP). Key characteristics of the CS5324-BL include 12-bit resolution, a single analog input channel, sigma-delta conversion architecture, and operation from a single positive supply. Because the converter architecture is designed for high-resolution, low-bandwidth measurement rather than high-speed waveform capture, it is typically paired with an anti-alias filter on the analog input and an external decimation filter or digital filter stage at the output. Because the PLCC package is a legacy surface-mount form factor, the CS5324-BL is most often encountered in industrial control equipment, test and measurement instruments, audio processing modules, and data acquisition systems that were designed around J-lead PLCC footprints. Modern designs frequently migrate to equivalent parts in smaller leadless packages, so footprint planning should be confirmed against the current package drawing before committing a new layout. When laying out a board around this device, treat the analog input and its reference as a high-impedance, noise-sensitive node group: keep the analog ground and digital ground returns separate until a single-point star connection near the converter, and place the input network and decoupling capacitors directly at the package pins to minimise pickup of switching noise from surrounding logic. The key trade-off in this converter is speed versus resolution. The sigma-delta architecture delivers fine resolution and good noise rejection but is not intended for high-rate signal sampling; if your application requires kilovolt-per-second sampling or wideband capture, a successive-approximation or pipeline ADC is the more appropriate architecture. This page consolidates the converter's package and architecture details, drop-in ordering alternatives, comparative specifications against related Cirrus Logic converters, and practical layout guidance that is not consolidated on a single manufacturer datasheet page.
CS5330A-BSZ - 18-Bit Stereo Sigma-Delta ADC, 8-SOIC | Cirrus Logic
The Cirrus Logic CS5330A-BSZ is an 18-bit, two-channel sigma-delta analog-to-digital converter (ADC) in an 8-pin SOIC package, optimized for cost-sensitive stereo audio capture. It integrates anti-alias filtering, sampling, and 18-bit A/D conversion for both left and right inputs in a single serial data stream. The part operates from a single +5 V supply, drawing approximately 150 mW during normal operation, making it well suited to space- and power-constrained audio front ends. A sigma-delta ADC is a type of oversampling converter that pushes quantization noise far above the audio band and shapes it with a digital low-pass filter, producing high dynamic range from a compact analog front end. In the broader taxonomy the CS5330A-BSZ sits within audio ADCs, then data converters, then signal chain ICs, then semiconductors; it is the audio counterpart to the CS5331A family for designers who need a simple stereo digitizer without an external anti-alias filter. Key features include 94 dB dynamic range, linear-phase digital anti-alias filtering, 18-bit resolution, single +5 V power supply operation, and a serial left-justified output format. The output sample rate is continuously adjustable from 2 kHz to 50 kHz, allowing the same hardware to support multiple audio standards including 44.1 kHz CD, 48 kHz DVD, and broadcast sample rates. Technically the CS5330A-BSZ uses a multi-bit sigma-delta modulator followed by a digital decimation filter that combines the role of anti-alias filter and decimator. This integrated digital filtering achieves 0.05 dB passband ripple to 21.7 kHz and greater than 80 dB stopband rejection, eliminating the external analog anti-alias filter typically required by successive-approximation ADCs and simplifying the analog front-end to a simple passive RC network. Typical applications include USB audio dongles, set-top box audio capture, automotive head-unit auxiliary and Bluetooth input stages, digital mixer consoles, AV receivers, and consumer karaoke systems. The wide 2-50 kHz sample-rate range also makes it suitable for broadcast and professional recording front ends where the same board must adapt to multiple standards. When designing with this device, pay close attention to PCB layout: keep analog inputs short and symmetric, decouple VA and VD independently with 0.1 uF ceramic capacitors placed as close as possible to the pins, and isolate the digital ground return from the analog ground return to avoid coupling digital switching noise into the analog input path. A common-mode 0.1 uF capacitor at each analog input pin further improves PSRR. This page consolidates distributor pricing, drop-in same-family alternatives, and PCB design notes not found in the manufacturer datasheet alone, giving the engineer a faster path from datasheet to production-ready stereo ADC front end.
CS5330A-BSZR - 18-Bit Stereo Sigma-Delta ADC, 8-SOIC | Cirrus Logic (Tape & Reel)
The Cirrus Logic CS5330A-BSZR is an 18-bit, two-channel sigma-delta analog-to-digital converter (ADC) in an 8-pin SOIC package, optimized for cost-sensitive stereo audio capture. It integrates anti-alias filtering, sampling, and 18-bit A/D conversion for both left and right inputs in a single serial data stream. The part operates from a single +5 V supply, drawing approximately 150 mW during normal operation, making it well suited to space- and power-constrained audio front ends. A sigma-delta ADC is a type of oversampling converter that pushes quantization noise far above the audio band and shapes it with a digital low-pass filter, producing high dynamic range from a compact analog front end. In the broader taxonomy the CS5330A-BSZR sits within audio ADCs, then data converters, then signal chain ICs, then semiconductors; it is the audio counterpart to the CS5331A family for designers who need a simple stereo digitizer without an external anti-alias filter. Key features include 94 dB dynamic range, linear-phase digital anti-alias filtering, 18-bit resolution, single +5 V power supply operation, and a serial left-justified output format. The output sample rate is continuously adjustable from 2 kHz to 50 kHz, allowing the same hardware to support multiple audio standards including 44.1 kHz CD, 48 kHz DVD, and broadcast sample rates. Technically the CS5330A-BSZR uses a multi-bit sigma-delta modulator followed by a digital decimation filter that combines the role of anti-alias filter and decimator. This integrated digital filtering achieves 0.05 dB passband ripple to 21.7 kHz and greater than 80 dB stopband rejection, eliminating the external analog anti-alias filter typically required by successive-approximation ADCs and simplifying the analog front-end to a simple passive RC network. Typical applications include USB audio dongles, set-top box audio capture, automotive head-unit auxiliary and Bluetooth input stages, digital mixer consoles, AV receivers, and consumer karaoke systems. The wide 2-50 kHz sample-rate range also makes it suitable for broadcast and professional recording front ends where the same board must adapt to multiple standards. When designing with this device, pay close attention to PCB layout: keep analog inputs short and symmetric, decouple VA and VD independently with 0.1 uF ceramic capacitors placed as close as possible to the pins, and isolate the digital ground return from the analog ground return to avoid coupling digital switching noise into the analog input path. A common-mode 0.1 uF capacitor at each analog input pin further improves PSRR. This page consolidates distributor pricing, drop-in same-family alternatives, and PCB design notes not found in the manufacturer datasheet alone, giving the engineer a faster path from datasheet to production-ready stereo ADC front end.
CS5330A-KSZ - 18-Bit Stereo Sigma-Delta ADC, 50kS/s, SOIC-8 | Cirrus Logic
The Cirrus Logic CS5330A-KSZ is a complete 18-bit, 2-channel sigma-delta analog-to-digital converter housed in an 8-pin SOIC (KS) package, designed for stereo digital audio capture with an adjustable output sample rate of 2 kHz to 50 kHz. It integrates an anti-alias filter, dual sample-and-hold, sigma-delta modulator and decimation filter, generating 18-bit serial values for both left and right inputs from a single +5 V analog supply. An audio ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous-time analog audio signals into discrete digital codes suitable for DSP, streaming, or storage. The CS5330A-KSZ belongs to the sigma-delta (delta-sigma) ADC family, which trades raw speed for very high in-band resolution by oversampling the input and using a noise-shaping modulator. Within the broader taxonomy, it is a stereo audio ADC -> ADC -> data converter -> data acquisition IC -> mixed-signal integrated circuit -> semiconductor. Key features include 18-bit resolution, 94 dB dynamic range, linear-phase digital anti-alias filtering that removes the need for an external RC anti-alias stage, and 0.05 dB passband ripple with greater than 80 dB stopband rejection. Power consumption is approximately 150 mW from a single +5 V supply, making it attractive for power-sensitive stereo capture designs. Architecturally, the device uses a switched-capacitor sigma-delta modulator front end followed by a linear-phase FIR decimation filter, providing both channels from a common clock reference. The internal digital filter eliminates the external anti-alias network typically required by successive-approximation or pipelined ADCs, simplifying the BOM and reducing analog layout sensitivity. Typical applications include USB audio interfaces, automotive head-unit auxiliary inputs, portable digital recorders, set-top box audio capture, and stereo line-level digitization for embedded DSP. The wide sample-rate range (2-50 kHz) supports both voice-band and full audio-band use cases. When designing with this part, place decoupling capacitors close to the +5 V supply pin and follow Cirrus Logic reference layout guidelines for the analog ground plane. The serial output word clock and left/right framing must be matched to the downstream DSP or USB audio codec for correct stereo alignment. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and design notes that supplement the manufacturer datasheet.
CS5331A-DSZ - 18-Bit Stereo Audio ADC | Cirrus Logic
The Cirrus Logic CS5331A-DSZ is a complete 18-bit, 2-channel stereo analog-to-digital converter designed for digital audio applications, integrating anti-alias filtering, sampling, and A/D conversion in an 8-pin SOIC package. It uses two one-bit delta-sigma modulators that simultaneously sample the analog input signals at 128 times the output sample rate, with the resulting serial bit streams digitally filtered to yield pairs of 18-bit values. Key features include 2 single-ended analog input channels, an output sample rate continuously adjustable from 2 kHz to 50 kHz, and a single 5 V analog supply. According to the Cirrus Logic datasheet, the device targets low-cost, high-performance stereo digitization for consumer audio products. An ADC (Analog-to-Digital Converter) is a semiconductor device that converts continuous analog signals into discrete digital codes. The CS5331A belongs to the sigma-delta (ΔΣ) converter family, which uses oversampling and noise shaping to achieve high resolution at audio bandwidths. Within the broader hierarchy, this part is an audio ADC -> data converter -> signal chain IC -> power management & signal chain. Sigma-delta ADCs are favored in audio for their inherent linearity, built-in digital filtering, and tolerance to clock jitter compared to successive-approximation or flash architectures. Key features of the CS5331A-DSZ include 18-bit resolution across two channels, an integrated digital decimation filter, single +5 V analog supply operation, and a serial audio output interface compatible with common DSPs and audio processors. The chip's 8-pin SOIC footprint keeps the analog input path short, reducing noise pickup on the front end. The output word rate is user-programmable, allowing the same device to support 48 kHz, 44.1 kHz, and 32 kHz families plus multiples. Technically, the CS5331A combines a switched-capacitor front-end with a multi-bit delta-sigma modulator stage, providing wide dynamic range while keeping the analog input structure simple. The integrated digital low-pass filter provides anti-alias rejection and removes the need for an external post-ADC filter, which is a significant board-space and BOM-cost saver versus discrete ADC + op-amp + filter designs. Typical applications include digital audio recording systems, A/V receivers, set-top boxes, computer sound cards, and musical instrument effect units. The wide 2-50 kHz sample rate range also supports specialty uses such as ultrasonic or sub-audio data acquisition. Design considerations include providing a low-impedance ground plane near the analog inputs, a clean +5 V supply with adequate decoupling, and routing the serial output away from the analog inputs to avoid digital feedback. This page combines distributor pricing, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone.
CS5331A-KSZ - 18-Bit Stereo Audio ADC SOIC-8 | Cirrus Logic
The Cirrus Logic CS5331A-KSZ is a complete stereo analog-to-digital converter that performs anti-alias filtering, sampling, and analog-to-digital conversion, generating 18-bit values for both left and right inputs in serial form, housed in an 8-pin SOIC package. A sigma-delta ADC (analog-to-digital converter) is a type of data converter that uses oversampling and noise shaping to achieve high resolution from a relatively simple analog front end. In the broader component hierarchy, a sigma-delta ADC sits within ADC/DAC converter chips, which are part of the data converter family, which in turn belongs to the signal chain and mixed-signal semiconductor category. The stereo attribute means the device integrates two independent conversion channels in a single die, making it well suited to consumer and prosumer audio capture where PCB area and BOM cost matter more than absolute laboratory precision. Key features of the CS5331A-KSZ include two simultaneous sampling sigma-delta modators per channel, integrated digital decimation filtering, an internal voltage reference, and a serial audio data output. The device typically operates from a single 5 V analog supply and draws low power suitable for portable recording equipment, USB audio interfaces, set-top boxes, and A/V receivers. The CS5331A architecture combines a multi-bit switched-capacitor sigma-delta modulator for each channel with on-chip digital decimation filters that produce the final 18-bit audio samples at standard audio sampling rates. This topology trades analog complexity for digital complexity and yields strong power-supply rejection at audio-band frequencies, allowing the converter to be fed directly from modestly regulated rails without compromising dynamic range. Typical applications include consumer digital audio recording such as DAT, CD-R, MD, and multimedia PC audio capture, automotive head-unit auxiliary inputs, set-top box digital audio outputs, and low-cost USB audio interfaces for streaming and podcasting. When designing with the CS5331A-KSZ, observe the standard sigma-delta grounding and decoupling practice: separate analog and digital ground returns joined at one point, place 10 uF plus 0.1 uF decoupling close to each supply pin, and keep the MCLK source clean because jitter at the master clock input directly degrades achievable dynamic range. This page synthesizes distributor stock, parametric alternatives in the same SOIC-8 footprint, and practical layout guidance that go beyond what the manufacturer datasheet alone provides, helping procurement engineers, design engineers, and hobbyists evaluate the CS5331A-KSZ for audio ADC replacement, new design, and cross-reference tasks.
CS5333-BZ - 24-Bit 96 kHz Stereo ADC | Cirrus Logic
Cirrus Logic CS5333-BZ is a highly integrated 24-bit, 96 kHz stereo analog-to-digital converter housed in a 16-pin TSSOP package. It uses delta-sigma conversion techniques to digitize left and right line-level audio inputs, with a dynamic range of 98 dB at a 3 V supply and total harmonic distortion plus noise of -88 dBFS. The converter operates from a 1.8 V to 3.3 V supply and consumes 11 mW at 1.8 V, making it suitable for compact, power-constrained digital audio equipment. A stereo ADC is an analog-to-digital converter that accepts two simultaneous analog audio channels and produces corresponding digital sample streams. The CS5333 belongs to the broader ADC category, where resolution determines the numerical granularity of each sample, sampling rate determines how many samples are captured each second, and dynamic range describes the usable signal span relative to the converter noise floor. Its 24-bit architecture and 96 kHz maximum sampling rate support high-fidelity consumer audio systems. The CS5333-BZ provides line-level inputs, low-power operation, and integrated delta-sigma conversion in a compact 16-pin TSSOP package. At a 3 V supply, its specified dynamic range reaches 98 dB, while the -88 dBFS THD+N figure provides a quantitative indication of distortion performance. Operation from 1.8 V to 3.3 V also supports both low-voltage portable designs and conventional 3.3 V audio subsystems. A master-mode DIV pin provides configuration flexibility by allowing the system to select base-rate or high-rate operation according to the required conversion performance. This makes the device adaptable to different audio-clock and sample-rate arrangements. The manufacturer application note AN285REV1 discusses the timing and configuration distinctions involved in transitioning from the CS5333 to CS5340 and CS5344 designs. Typical uses include set-top boxes, audiovisual receivers, DVD and karaoke players, and other digital audio products that require compact stereo conversion. Its line-level input architecture is particularly appropriate for consumer audio paths in which the source already provides a compatible line signal and the converter must supply accurate, high-resolution digital samples to an audio processor or decoder. The most important design consideration is confirming that the system clock, master or slave operating mode, DIV state, analog input levels, and digital interface timing match the intended audio architecture. Use the pin-description and application-information tables in the manufacturer datasheet when assigning signals, and preserve the recommended power-supply and analog-input filtering arrangements to avoid degrading the converter's noise and distortion performance.
CS5334-KS - 20-Bit Stereo Audio ADC | Cirrus Logic
The Cirrus Logic CS5334-KS is a 20-bit stereo analog-to-digital converter for digital audio systems, operating from a single +5 V supply with an analog input sampling range of 2 kHz to 50 kHz and housed in a 20-pin SSOP package. It performs dual-channel sampling, conversion, and anti-alias filtering before delivering serial digital audio data. The converter is designed for compact audio capture, playback, and digital mixing equipment where a stereo 20-bit conversion stage is required. An ADC is an analog-to-digital converter, a semiconductor that samples continuous analog voltage signals and represents them as numeric data. The CS5334 belongs to the ADC and DAC > ADC/DAC category, within the broader integrated-circuit and signal-conversion hierarchy. Its stereo architecture processes left and right audio channels simultaneously, while its integrated anti-alias filtering helps reject unwanted high-frequency energy before conversion. The main characteristics of the CS5334-KS include 20-bit stereo conversion, a 2 kHz to 50 kHz input sampling range, a single +5 V supply, serial output, and a 20-SSOP package. According to the Cirrus Logic CS5334 family datasheet, the CS5334 and CS5335 are pin-compatible two-channel converters for digital audio systems. The same source states that both devices perform sampling, analog-to-digital conversion, and anti-alias filtering, generating 20-bit values for the left and right inputs in serial form at up to 50 kHz per channel. The CS5334 is positioned as an audio-focused ADC rather than a general-purpose instrumentation converter. Its dedicated stereo signal path supports audio systems that require synchronized left and right channels and a serial interface suitable for connection to a digital audio processor. The supplied verified data does not state the exact output interface, clock architecture, converter SNR, THD, input impedance, or absolute digital output codes, so those details should be confirmed in the manufacturer datasheet before final circuit sign-off. Typical uses include professional and consumer digital audio equipment, stereo recording interfaces, multimedia sound cards, digital mixing consoles, and embedded audio capture systems. In each case, the CS5334 can serve as the front-end converter that accepts left and right analog audio inputs and supplies serial 20-bit samples to a digital signal processor, audio codec, or controller. System designers should account for the +5 V analog supply, external clocking, input conditioning, reference requirements, and suitable PCB grounding when implementing the device. A key design consideration is that CS5334-KS is an older, likely constrained-market component, so supply planning and functional verification deserve attention before committing to a production run. This page synthesizes the verified distributor and manufacturer-family information, documented alternatives, and application guidance to support initial component selection without inventing unavailable electrical details.
CS5335-KS - 20-Bit Stereo Audio ADC | Cirrus Logic
The Cirrus Logic CS5335-KS is a 20-bit, two-channel, single-supply stereo analog-to-digital converter for digital audio systems, with an analog sampling bandwidth of 2 kHz to 50 kHz in a 20-pin SSOP package. It accepts a single +5 V supply and generates serial digital output for left and right audio channels while performing sampling, analog-to-digital conversion, and anti-alias filtering. An audio ADC is a specialized data-conversion IC that converts continuous left- and right-channel analog audio signals into discrete digital words for processing, storage, transmission, or playback. In the component hierarchy, the CS5335-KS is an ADC, a data converter, and an interface IC used in digital audio equipment. Its 20-bit conversion resolution preserves a substantial amount of amplitude detail, while its stereo architecture supports simultaneous or paired-channel digital audio acquisition. The key verified features of the CS5335-KS are 20-bit resolution, two analog input channels, a 2 kHz-to-50 kHz signal bandwidth, one +5 V supply, and serial output for both channels. These characteristics make the converter suitable for consumer and professional audio systems that require more precision than a conventional 8-bit or 16-bit audio converter. The SSOP package also supports compact, surface-mounted circuit-board implementations. The CS5335 performs analog-to-digital conversion as part of a signal chain that also includes anti-alias filtering. This integrated filtering helps remove higher-frequency content before the sampled data is converted into its digital representation. The available verified data does not state the internal converter architecture, clocking requirements, dynamic range, total harmonic distortion, input impedance, or output logic format, so those characteristics should be confirmed in the manufacturer datasheet before a precision audio design is released. Typical uses include digital audio mixers, stereo playback and recording equipment, consumer audio appliances, sound-card signal paths, and industrial monitoring systems with audio inputs. In each case, the converter can sit after analog input conditioning and provide serial digital channel data to a DSP, codec, microcontroller, or storage interface. The available sources identify the CS5335 as a stereo converter for digital audio rather than as a general-purpose instrumentation ADC. The primary design consideration is verification of the electrical interface. Designers should obtain the CS5335 pinout, confirm the analog input and output pin assignments, determine the required master clock and data-format settings, and calculate decoupling and layout requirements from the manufacturer datasheet. The verified web results identify the 20-SSOP package but do not provide a complete public pin table, so the pinout is not reproduced here to avoid inaccurate connections. This page combines verified distributor specifications, package and channel details, pricing, source links, selection guidance, and application-specific engineering notes. It also distinguishes the documented CS5335-KS characteristics from parameters that remain unavailable, helping engineers identify what can be confirmed immediately and what must be checked in the official data.
CS5351-BS 108 dB 192 kHz Audio ADC | Cirrus Logic
The Cirrus Logic CS5351-BS is a 108 dB, 192 kHz multi-bit audio analog-to-digital converter designed for digital audio systems. It combines sampling, A/D conversion, and anti-alias filtering in a single IC, while producing 24-bit serial data for left and right channels. The converter is supplied in the -BS package configuration for compact, surface-mount audio equipment and supports the high-resolution, high-sample-rate requirements of professional audio and consumer audio applications. An audio ADC is a data-converter IC that accepts analog left and right audio signals and converts them into digital words suitable for transmission, recording, playback, or digital signal processing. In the broader component hierarchy, the CS5351-BS is an ADC, a data converter, and a specialized digital-audio integrated circuit. Its integrated anti-alias filtering reduces the need for separate external analog filtering before the conversion stage. The CS5351 uses a fifth-order, multi-bit Delta-Sigma modulator followed by digital filtering and decimation. This architecture is intended to support 24-bit conversion results at sample rates up to 192 kHz per channel. The manufacturer identifies the device as a complete analog-to-digital converter for digital audio systems, and the available product information describes overflow detection for both left and right channels, with the multiplexed overflow indication presented as an active-low open-drain signal on pin 15. The device is intended for applications where accurate stereo capture and high-resolution digital representation are valuable. Typical uses include professional digital audio equipment, multichannel recording systems, consumer audio processors, digital mixers, and high-performance playback or monitoring equipment. The 192 kHz per-channel rate supports very high-bandwidth digital audio workflows, while the 108 dB dynamic-range figure defines the principal signal-to-noise performance target. Because the CS5351-BS is an integrated converter, board layout and power-supply design remain important even when no external anti-alias filter is required. The analog and digital sections should be routed according to the manufacturer datasheet, with attention to grounding, decoupling, clock integrity, and keeping switching or high-current digital signals away from the analog inputs. The CS5351 family is marked NRND, so lifecycle planning should confirm availability or an approved replacement before beginning a long-running production design. This page combines manufacturer information, distributor availability, lifecycle status, and application guidance to provide an engineering-focused overview. It also distinguishes documented CS5351-BS facts from parameters that require confirmation in the manufacturer datasheet, helping designers evaluate the converter without treating incomplete specifications as verified production data.
CS5371-BS 24-Bit 512k Serial Modulator | Cirrus Logic
The Cirrus Logic CS5371-BS is a low-power, high-performance special-purpose modulator with a 24-bit resolution, a 512 kHz serial interface, and a 24-SSOP package. The device is categorized by distributors as an ADC/DAC and modulator product, making it suitable for precision signal-conversion systems that require a serial digital stream rather than a conventional parallel data bus. Its advertised 512 kHz serial rate supports high-speed digital signal processing while the 24-bit representation provides fine quantization granularity. A delta-sigma modulator is a specialized signal-processing IC that converts an analog input into a high-speed, low-resolution bit stream whose average value represents the sampled analog signal. Within the ADC/DAC hierarchy, this type of modulator sits between a general-purpose data converter and a digital filter or decimator. It is especially useful when a downstream processor can reconstruct or process the filtered bit stream, allowing converter performance to be distributed across analog input conditioning and digital reconstruction. The CS5371-BS combines three principal characteristics: 24-bit modulator resolution, a 512 kHz serial interface, and low-power operation. Cirrus Logic also identifies a power-down mode as a device feature. This combination supports designs in which the modulator is enabled only when conversion is required. The 24-SSOP package provides a conventional surface-mount form factor, while the available distributor data confirms its 24-pin package designation. According to the manufacturer data referenced by the distributor sources, CS5371 and CS5372 inputs must be bandwidth-limited to preserve loop stability and prevent aliased high-frequency signals. The modulators use a fourth-order architecture and are conditionally stable, making input filtering a critical part of the signal chain. A poorly selected antialias filter can therefore produce stability problems or allow high-frequency content to fold into the useful measurement band. Typical uses include industrial measurement systems, communication equipment, instrumentation, and digital signal-processing front ends. In each case, the serial interface can feed a digital filter or decimator, while the low-power characteristic benefits portable or intermittently operated equipment. Applications requiring a complete high-resolution ADC should also evaluate the external filter, clocking, reconstruction circuitry, and downstream processor rather than treating the modulator as a standalone converter. Designers should place the input antialias network close to the modulator and verify stability across the full input range, clock frequency, and output-load conditions. Because the device is conditionally stable, operating conditions outside the recommended input bandwidth deserve particular attention. Exact supply voltage, reference requirements, clock range, current consumption, and performance limits require confirmation from the manufacturer datasheet before layout or production release. This product page consolidates verified distributor specifications, package information, pricing signals, same-family alternatives, and practical stability guidance. It also distinguishes documented facts from parameters that still require direct manufacturer confirmation, helping engineers assess fit without filling specification gaps with assumptions.
CS5372-BS - 24-Bit Dual ΔΣ Modulator | Cirrus Logic
Cirrus Logic CS5372-BS is a low-power, high-performance, two-channel, fourth-order delta-sigma modulator designed for precision measurement systems. The device operates from a 24-bit serial interface at up to 512 kS/s and is offered in a 24-pin SSOP package. Its modulator architecture is intended for geophysical, sonar, and other high-dynamic-range sensor-acquisition applications. A delta-sigma modulator is a signal-conversion building block that noise-shapes quantization error away from the measurement band. The CS5372 belongs to the broader delta-sigma modulator family within data-conversion ICs, with the CS5376 digital filter forming the companion conversion stage in the manufacturer-described measurement system. This separation allows the analog front end and digital filtering to be optimized independently. The CS5372-BS provides 24-bit resolution and a maximum serial conversion rate of 512 kS/s across two channels. Its fourth-order architecture is intended for high-dynamic-range acquisition, while the low-power design supports extended measurement-system run times. The serial interface simplifies connection to digital filter and processing hardware, and the 24-pin SSOP package supports compact, surface-mounted instrumentation. The device is intended to be used with the Cirrus Logic CS5376 digital filter to create a complete high-resolution analog-to-digital measurement system. This architecture is particularly relevant when sensor outputs require narrow-band extraction, strong rejection of out-of-band noise, and high resolution without requiring a conventional high-speed flash converter directly at the analog input. Typical applications include geophysical survey instruments, sonar measurement front ends, seismic data-acquisition systems, precision industrial monitoring, and low-frequency sensor instrumentation. In these systems, the CS5372-BS can convert differential or single-ended analog sensor signals into a high-resolution digital bitstream for subsequent filtering and processing. Designers should follow the manufacturer pin-description and application tables when assigning analog inputs, references, clocking, and digital interfaces. Decoupling, grounding, and clock implementation directly affect modulator performance, so the recommended layout and component values should be taken directly from the manufacturer datasheet and its CS5376 companion-filter recommendations. This page combines the CS5372-BS identification, application guidance, design considerations, comparison structure, and verified document links to support engineering selection. Use the Request a Quote form for current commercial availability, lead time, and sourcing support.
CS5394-KS - 24-Bit Stereo Audio ADC | Cirrus Logic
Cirrus Logic CS5394-KS is a stereo audio analog-to-digital converter with 24-bit resolution, a nominal 48 kHz sampling rate, and a maximum output sample rate of 50 kHz per channel. The device performs sampling, analog-to-digital conversion, and anti-alias filtering for left and right audio inputs, then delivers the converted channels in serial form. Its manufacturer-rated signal-to-noise performance reaches 117 dB, and the converter operates from a 5 V supply in the identified ordering. An audio ADC is a data-conversion IC that converts continuous analog voltage signals into digital codes for processing, storage, or transmission. Within the semiconductor hierarchy, the CS5394-KS is a delta-sigma audio ADC, a specialized form of analog-to-digital converter optimized for stereo audio. The converter integrates sampling, conversion, and anti-alias filtering so the surrounding audio system can process left- and right-channel data without relying on a separate front-end filtering stage for those functions. The principal feature of the CS5394-KS is its 24-bit output resolution for both audio channels. The manufacturer rates the converter at 117 dB signal-to-noise ratio and identifies a 48 kHz operating mode, while the family documentation states that the output sample rate can reach 50 kHz per channel. These figures position the part for professional and consumer audio equipment requiring substantially more conversion resolution than conventional 16-bit audio converters provide. Serial output reduces the number of interchannel data conductors required by the system. As a delta-sigma converter, the CS5394-KS uses a noise-shaping architecture intended to move quantization noise away from the audio signal band. Its integrated anti-alias filtering complements the conversion stage by attenuating high-frequency content that could otherwise alias into the digital output. The result is a consolidated stereo conversion path in which analog inputs are sampled, filtered, converted into 24-bit values, and presented serially. Clocking, digital-interface implementation, and decoupling remain board-level responsibilities that should follow the manufacturer application guidance. Typical uses include professional audio interfaces, digital mixers, multichannel sound consoles, studio recording equipment, consumer stereo audio systems, and digital audio processing platforms. In these systems, the converter can capture balanced or unbalanced analog line-level signals after suitable input conditioning, then pass serial stereo data to a digital signal processor, audio codec, transmitter, or storage controller. The 117 dB signal-to-noise rating and 24-bit conversion depth are particularly relevant to equipment in which low-level audio content must be captured with low quantization noise. A critical board-design consideration is preserving the quality of the analog input path. Keep input routing short, maintain a continuous ground reference, place the required bypass capacitors close to their associated supply pins, and route digital clock and data lines away from sensitive analog inputs. Follow the manufacturer’s recommended clocking and interface layout because timing and grounding errors can degrade converter performance even when nominal resolution and sampling-rate specifications are satisfied. This product page consolidates the confirmed CS5394-KS conversion specifications, orderable naming information, practical application guidance, and verified source links. It also separates the documented device identity from unconfirmed package, pinout, environmental, and lifecycle details so engineers can make board-level decisions using manufacturer documentation rather than assumptions.
CS5451-BS - 16-Bit 6-Channel Sigma-Delta ADC | Cirrus Logic
The Cirrus Logic CS5451-BS is a 16-bit, six-channel sigma-delta analog-to-digital converter designed for power measurement applications. It operates from a 2.7 V to 3.5 V supply, supports an operating temperature range of -40 °C to +85 °C, and is packaged in a 28-pin SSOP. The device combines six sigma-delta conversion channels with digital decimation filtering and a serial interface for transferring measurement data to a host processor. An analog-to-digital converter, or ADC, converts continuously varying analog voltages into digital values that a microcontroller, DSP, or other digital controller can process. The CS5451 belongs to the sigma-delta ADC family, where oversampling and digital filtering are used to obtain high resolution in narrowband or low-frequency measurement systems. Within the component hierarchy, the CS5451 is a multichannel data-conversion IC and part of the broader ADC/DAC and power-management signal-chain ecosystem. The CS5451-BS provides six analog input channels and 16-bit resolution in a single package. This integration reduces the number of separate converters required in systems that monitor several power-related signals. Its sigma-delta architecture is particularly useful when the measured signals are relatively slow-changing and require strong rejection of out-of-band noise. The integrated decimation filters help limit the bandwidth presented to the digital interface. The 28-pin SSOP package supports compact circuit layouts in industrial control, metering, instrumentation, and embedded measurement systems. Because the converter is intended for the power measurement industry, its architecture prioritizes multichannel conversion and digital filtering rather than high-speed waveform capture. The 2.7 V to 3.5 V operating range places it in low-voltage digital and mixed-signal systems, where the host processor and supporting circuits commonly operate from a 3.3 V rail. Designers should treat the analog inputs, reference circuitry, serial interface, and power connections as separate layout concerns. Place decoupling capacitors close to the supply pins, route analog signals away from switching nodes, and use a clean ground return for the converter. The selected input bandwidth, decimation setting, output data rate, and digital filter configuration should be evaluated together because changing any of them affects the effective measurement bandwidth and conversion timing. This product page organizes the CS5451-BS electrical identity, package information, sourcing paths, comparison fields, and application guidance into one engineering reference. It also distinguishes verified drop-in alternatives from parts with different packages or insufficient compatibility information, helping designers avoid replacements that require PCB changes or interface redesign.