ADC/DAC
Produtos (2518)
CDK8307EILP64 - 12/13-Bit 80MSPS Octal LVDS ADC | MaxLinear
The MaxLinear CDK8307EILP64 is a 12/13-bit resolution, 80 MSPS sampling rate, eight-channel ultra-low-power analog-to-digital converter (ADC) housed in a 64-pin QFN (9x9) package. The device supports programmable sample rates of 20, 40, 50, 65, and 80 MSPS, giving designers flexibility to optimize power versus performance across varied channel counts and signal bandwidths. Serial LVDS outputs reduce pin count and ease board routing in multi-channel systems. An ADC (analog-to-digital converter) is a data-acquisition integrated circuit that samples continuous analog voltage levels and converts them into discrete digital codes for processing by an FPGA, ASIC, DSP, or microprocessor. Octal (8-channel) ADCs belong to the high-density converter category, sitting within the broader hierarchy of data converter -> signal chain IC -> mixed-signal semiconductor -> power-management/data-acquisition ecosystem. They are widely used in systems that require simultaneous sampling of multiple analog inputs. Key features of the CDK8307EILP64 include an internal reference circuit that eliminates the need for an external reference IC, a serial control interface for mode programming, proprietary multi-stage ADC architecture, and ultra-low-power operation critical for high-channel-count designs where total system heat dissipation is a constraint. The LVDS digital interface supports high-speed board-level data transfer with strong common-mode noise rejection on long PCB traces. Typical applications include medical imaging (ultrasound beamformers), industrial multi-channel data acquisition, communications receiver IF digitizers, test and measurement digitizer cards, and defense phased-array radar. When designing with this device, decouple AVDD and DRVDD supplies with low-ESR 1 uF and 100 nF capacitors placed within 5 mm of the supply pins, keep LVDS trace lengths matched within 5 mils to minimize skew, and respect the exposed-pad (ePAD) thermal/ground connection by stitching it with 9 thermal vias to the internal ground plane.
CLC5955MTD/NOPB - 11-Bit 55MSPS IF ADC | Texas Instruments
The Texas Instruments CLC5955MTD/NOPB is a monolithic 11-bit, 55MSPS analog-to-digital converter (ADC) in a 48-pin TSSOP (MTD) package optimized for IF (intermediate frequency) sampling in communications receivers. The device combines wideband track-and-hold input with internal reference circuitry, delivering low aperture jitter and high spurious-free dynamic range across the Nyquist range at 55 MSPS conversion rate. The /NOPB suffix denotes a lead-free, ROHS-compliant tray packaging variant of the original National Semiconductor part, which TI acquired and continues to ship under the legacy CLC prefix. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous-time analog voltage samples into a binary code, allowing real-world signals to be processed by digital signal processors (DSPs), FPGAs, or microcontrollers. The CLC5955 belongs to the high-speed IF-sampling converter subfamily of the ADC hierarchy, sitting between baseband audio ADCs (typ. <5MSPS) and full-RF direct-sampling converters (typ. >100MSPS). Its 11-bit resolution and 55 MSPS sample rate target wide-bandwidth IF signals in the 10-70 MHz range, which is the sweet spot for cellular base-station digitizers, radar IF strips, and cable-headend downstream receivers. Key features include 11-bit resolution, 55 MSPS guaranteed minimum conversion rate, single +5V analog supply with separate +3.3V digital supply option, internal 2.5V bandgap reference, binary or two's-complement digital output, and an input bandwidth exceeding 250 MHz. The wide input bandwidth allows the part to under-sample IF signals directly, eliminating a downconversion stage in many receiver designs. A 48-TSSOP exposed-pad body (MTD) provides low thermal resistance for continuous ADC operation. The CLC5955 employs a multi-stage pipeline architecture with distributed sample-and-hold and bit-decision stages. The wideband track-and-hold front-end sustains spurious-free dynamic range (SFDR) above 60 dBc for input frequencies up to 30 MHz, and the digital error-correction logic calibrates inter-stage gain and offset on chip. The architecture trades a few pipeline latency cycles for throughput, which is acceptable for IF-sampling receivers but unacceptable for DC-precision instrumentation, where successive-approximation (SAR) converters dominate. Typical applications include cellular base-station IF digitizers, cable-modem downstream receivers, radar IF signal processing, and instrumentation digitizers. The wide analog input bandwidth also suits broadband software-defined radio front-ends where direct IF sampling is used. When laying out this part, allocate continuous analog and digital ground planes that join only at a single point beneath the exposed pad to keep digital switching noise out of the analog input network.
CLC5955MTDX/NOPB - 11-bit 55MSPS ADC | Texas Instruments
The Texas Instruments CLC5955MTDX/NOPB is an 11-bit, 55 MSPS pipelined analog-to-digital converter (ADC) in a 48-pin TSSOP package (6.10 mm body width) with exposed thermal pad, optimized for IF-sampled digital receivers and broadband signal processing applications. It offers a 55M sample-per-second conversion rate, parallel digital interface, single +5V analog supply operation, and is guaranteed over the -40C to +85C industrial temperature range. Key specifications from the verified datasheet include 11-bit resolution, 55 MSPS sampling rate, single +5V supply, parallel output interface, and tape-and-reel packaging. The CLC5955 family has been designed as a monolithic broadband ADC providing high dynamic range and low power dissipation for communications infrastructure and instrumentation equipment. The CLC5955MTDX/NOPB integrates a pipelined multi-stage converter architecture that internally calibrates gain and offset, achieving excellent linearity without external adjustment. The architecture delivers low-latency digital output suitable for real-time signal processing, while the parallel CMOS-compatible interface simplifies connection to FPGAs, ASICs, or DSP processors. The internal reference and sample-and-hold front-end support single-ended or differential analog inputs across a wide input bandwidth. Typical applications include IF-sampled digital receivers in cellular base stations, broadband cable head-end equipment, test and measurement instrumentation such as digital oscilloscopes and spectrum analyzers, and radar/sonar digitizing front-ends. The wide dynamic range and high sampling rate also support medical imaging and software-defined radio platforms where capturing modulated IF signals with high spurious-free dynamic range is essential. When designing with this device, allocate adequate decoupling on the +5V analog supply (typically 0.1uF ceramic plus 10uF tantalum close to the AVCC pins) and provide a low-impedance analog input driver with sufficient bandwidth to settle within half an LSB at the 55 MSPS clock rate. Route the parallel output bus with matched trace lengths to avoid setup-and-hold violations at downstream FPGAs. This page synthesizes distributor inventory, drop-in alternative cross-references, and practical layout/design notes that complement the manufacturer datasheet for engineers evaluating the CLC5955MTDX/NOPB.
CLC5956IMTD - 12-Bit 65 MSPS ADC | National Semiconductor
The National Semiconductor CLC5956IMTD is a 12-bit, 65 MSPS monolithic analog-to-digital converter subsystem optimized for cellular base station and broadband communications applications, housed in a 48-pin TSSOP package. It integrates a wideband track-and-hold amplifier and a pipelined ADC core that delivers 65 million samples per second with 12-bit resolution, supporting a single 2.048 V analog input range designed for direct interface to baseband or IF signal chains. An ADC (Analog-to-Digital Converter) is a data acquisition semiconductor that converts continuous analog signals into discrete digital codes. The 12-bit ADC category sits within the data converter hierarchy: ADC -> data converter -> signal chain IC -> mixed-signal semiconductor. Pipelined ADCs like the CLC5956IMTD use a multi-stage architecture to achieve high sampling rates while maintaining moderate resolution, making them well-suited for communications infrastructure and IF sampling. Key features include a 65 MSPS sampling rate, pipelined architecture, 48-TSSOP surface-mount package, and an operating temperature range of -40C to +85C suitable for industrial-grade deployment. The integrated track-and-hold front end simplifies external circuit design, while the parallel digital interface provides fast data throughput to downstream ASICs, FPGAs, or DSP processors without serialization latency. The CLC5956IMTD utilizes a bipolar-CMOS process that combines low-noise analog sampling with high-speed digital output logic. Its pipelined architecture delivers low latency and excellent dynamic range, enabling accurate capture of wideband modulated signals in receiver and instrumentation applications. The part was specifically designed for cellular base station IF strips where high spurious-free dynamic range and reliable sampling performance are essential. Typical applications include cellular base station receiver IF digitizers, broadband cable infrastructure, medical imaging systems, radar signal processing front ends, and high-speed instrumentation digitizers. The combination of 12-bit resolution and 65 MSPS throughput enables direct IF sampling in many communication system designs. When designing with this obsolete part, engineers should note that new designs are recommended to use modern pin-compatible alternatives or current-generation ADCs. Proper input analog anti-alias filtering and a low-jitter sampling clock are critical to achieving the rated SNR and SFDR specifications across the input frequency band. This page synthesizes distributor stock data, drop-in replacement candidates, and design notes that complement the original National Semiconductor datasheet and accelerate obsolescence management for legacy cellular base station hardware.
CLC5957MTDX/NOPB - 12-Bit 70MSPS Broadband ADC | TI/NSC
The Texas Instruments (formerly National Semiconductor) CLC5957MTDX/NOPB is a monolithic 12-bit, 70 MSPS analog-to-digital converter optimized for IF-sampled digital receivers and other high dynamic range applications. The device integrates a wideband track-and-hold front end, a pipelined ADC core, and an internal reference, all in a 48-pin TSSOP (MTD) package with tape-and-reel packaging per the NOPB suffix. It supports a single differential analog input, a parallel CMOS-compatible digital interface, and operates from a single 5 V analog supply with a separate 5 V digital supply for clean mixed-signal partitioning. An ADC (analog-to-digital converter) is an integrated circuit that samples continuous analog signals and converts each sample into a discrete digital code, forming the essential bridge between the analog and digital signal domains. ADC devices sit within the broader semiconductor taxonomy as: data converter -> ADC -> pipelined ADC -> high-speed ADC. The 12-bit resolution and 70 MSPS sampling rate place the CLC5957 firmly in the mid-resolution, high-speed tier used for communications, instrumentation, and radar/IF signal chains. Key features include 70 MSPS minimum sample rate, 12-bit resolution with no missing codes, differential input architecture for high common-mode rejection, and a pipelined converter core with 3-clock-cycle latency. The internal track-and-hold supports broadband analog inputs suitable for undersampling IF signals, and the parallel data interface simplifies FPGA or ASIC downstream connections. A separate DAV (data available) output simplifies timing into external logic. The CLC5957 uses a pipelined architecture with internal bandgap reference and proprietary calibration, balancing high sampling rate with low power. Its internal reference design eliminates the need for an external reference IC, simplifying the BOM while keeping drift low enough for communications-grade applications. The pipelined 3.0-clock latency is well-documented in the National Semiconductor datasheet and is deterministic for synchronization in multi-channel systems. Typical applications include IF-sampled digital receivers in cellular base stations, broadband communications test equipment, radar and signal-intelligence (SIGINT) front ends, medical imaging, and high-speed data acquisition. The combination of 12-bit resolution, 70 MSPS, and broadband input bandwidth makes it well-suited to undersampling IF architectures where a single ADC replaces multiple downconversion stages. When designing with this part, pay careful attention to analog input coupling, the layout of the AVCC and DVCC planes, and the use of a low-jitter encode clock to preserve SNR. A 1% or tighter tolerance external reference is not required because the reference is internal, but a clean low-noise analog supply rail is essential to achieving published dynamic performance. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical PCB design notes that go beyond the manufacturer datasheet, so engineers can quickly decide whether the CLC5957MTDX/NOPB fits their IF-sampling or broadband acquisition design.
CLC5958SLB - 14-bit 52 MSPS ADC, 48-PLGA | Texas Instruments
The Texas Instruments (originally National Semiconductor) CLC5958SLB is a monolithic 14-bit, 52 MSPS analog-to-digital converter designed for wideband signal acquisition where high spurious-free dynamic range (SFDR) and low noise are required. The device integrates a high-performance track-and-hold amplifier and a multi-stage pipelined quantizer core on a single die, packaged in a thermally-enhanced 48-pin PLGA (7 mm x 7 mm) with exposed thermal pads. The ADC features a single differential analog input channel, parallel CMOS-compatible digital outputs, and operates from a single +5 V analog supply with a separate +3.3 V digital supply to ease interface to modern FPGAs and DSPs. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples continuous-time analog voltages and converts each sample into a discrete digital code. Within the broader signal-chain taxonomy, the CLC5958SLB belongs to the high-speed pipelined ADC family, which sits between successive-approximation-register (SAR) ADCs (typically <5 MSPS) and flash or folding ADCs (typically >100 MSPS). Pipelined ADCs are the workhorse of communications, radar, and instrumentation receivers in the 10 MSPS to 250 MSPS range because they balance conversion speed, resolution, and power dissipation. The CLC5958SLB targets the 14-bit tier of this family, which is widely used in cellular base-station receivers, cable modem upstream paths, and medical imaging front-ends. Key features include a sampling rate up to 52 MSPS, 14-bit resolution with no missing codes, and an input bandwidth suitable for IF undersampling. The 48-PLGA package provides low thermal resistance and accommodates the exposed thermal pads required for reliable operation at full speed. The device supports industrial operating temperatures from -40C to +85C and is offered in tube packaging for production assembly lines. Typical applications include wideband communications receivers, IF sampling for software-defined radio (SDR), medical ultrasound beamformers, and high-performance instrumentation. The combination of speed, resolution, and the compact PLGA package makes it suitable for both laboratory and field-deployed equipment. When designing with this part, provide separate analog and digital ground planes connected at a single point, place the input anti-aliasing filter close to the analog input pin, and ensure the exposed thermal pads are soldered to a sufficient copper pour to maintain junction temperature within datasheet limits under continuous operation.
COP431CN/NOPB - 8-bit Serial I/O ADC, DIP-8 | Texas Instruments
The Texas Instruments COP431CN/NOPB is an 8-bit serial-interface analog-to-digital converter (ADC) housed in an 8-pin PDIP (DIP-8) through-hole package with a commercial temperature grade. The COP431CN/NOPB integrates a successive-approximation register (SAR) ADC core with an on-chip serial I/O port and an on-chip clock generator, providing a compact mixed-signal building block that needs only an external reference voltage and bypass capacitors to form a complete 8-bit conversion channel. An 8-bit ADC is a data-acquisition converter that translates an analog input voltage into a digital code with 256 discrete quantization levels (28 = 256), giving a least-significant-bit (LSB) step of full-scale / 256. SAR (successive-approximation register) ADCs are the dominant topology for medium-speed, low-to-medium resolution applications because they deliver deterministic latency, zero pipeline delay, and excellent DC accuracy. The COP431CN/NOPB belongs to the data converter IC family, within the broader signal-chain and data-acquisition hierarchy (ADC -> data converter -> analog/mixed-signal IC -> semiconductor). Key features of the COP431CN/NOPB include its serial I/O architecture, which minimizes PCB trace count and simplifies routing compared with parallel-output ADCs; commercial-grade temperature rating suitable for 0 C to +70 C operation; through-hole DIP-8 mechanical format that allows easy prototyping, breadboarding, and socketed replacement; and an internal clock generator that removes the need for an external ADC clock. The part is offered by Texas Instruments and was originally released by National Semiconductor, now part of TI's data-converter portfolio. The COP431CN/NOPB is typically used in legacy industrial controllers, simple sensor-digitization front ends, instrumentation front panels, and education/development platforms where an 8-bit converter with low pin count is preferred. The serial interface pairs naturally with microcontrollers such as the COP8 and other 8051-class devices that lack a parallel external bus, reducing MCU pin consumption from 11 lines (8 data + 3 control) to typically 3 lines (CS, CLK, DOUT). When designing with the COP431CN/NOPB, observe the reference-voltage decoupling recommendations and ensure the analog input does not exceed the reference or absolute-maximum ratings. Because the part is a through-hole DIP-8, expect to allocate modest PCB area; if board real-estate is critical, verify whether a newer TI 8-bit serial ADC with an SOIC-8 footprint is acceptable as a redesign. This page synthesizes distributor pricing for the COP431CN/NOPB, available drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet, including an honest assessment of when this legacy ADC remains the best choice versus when a modern SOIC-8 part is preferable.
COP432CN - 8-Bit Serial I/O SAR ADC, 1 or 2-Input, 8-PDIP | Texas Instruments
The Texas Instruments COP432CN is an 8-bit successive-approximation-register (SAR) analog-to-digital converter with a serial I/O interface, 1 or 2 input channels, and a through-hole 8-pin PDIP package. It supports single-supply operation and provides ratiometric conversion results, making it suitable for low-cost embedded data acquisition. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a type of data converter that performs a binary search across the input voltage, comparing it against an internal DAC for each bit. SAR ADCs occupy a middle ground between flash converters (fast but power-hungry and large) and sigma-delta ADCs (high resolution but latency-bound). Within the broader hierarchy, the SAR ADC belongs to the data-converter IC family, which sits under analog-to-digital converters (ADCs) -> data conversion ICs -> signal chain -> semiconductor. This category positioning explains why the COP432CN is typically used in cost-sensitive embedded designs that need more speed than a sigma-delta but lower complexity than a pipelined part. Key features include 8-bit resolution, 1 or 2 analog input channels, a serial interface for minimal MCU pin count, and a commercial temperature grade suitable for 0C to +70C operation. The PDIP-8 through-hole footprint simplifies prototyping on breadboards and through-hole PCBs, while the simple serial protocol allows easy interfacing with 8051, PIC, AVR, and other low-pin-count microcontrollers. The COP432CN utilizes a classic SAR architecture with internal sample-and-hold, providing deterministic conversion latency and excellent behavior for multiplexed multi-channel acquisition. The serial data output minimizes board routing compared to parallel-output ADCs of the same era. Typical applications include handheld instruments, battery monitoring, simple sensor front-ends, panel-meter designs, and embedded microcontroller systems requiring basic analog measurement. Designers choose this part when an 8-bit result is sufficient and BOM cost must be minimized. When designing with this device, verify the reference voltage selection against the input signal range, ensure the serial clock timing matches the host controller, and place a 0.1uF decoupling capacitor close to the supply pin to suppress digital switching noise from corrupting the conversion. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a one-stop comparison view.
COP434CN/NOPB - 8-Bit Serial ADC, 4-Ch, DIP-14 | Texas Instruments
The Texas Instruments COP434CN/NOPB is an 8-bit, 4-channel serial-interface analog-to-digital converter (ADC) housed in a 14-pin through-hole DIP package. It operates from a single 5 V supply, supports an 8-channel multiplexer (the "4" digit in the device family denotes channel count ordering), and uses a successive-approximation register (SAR) architecture with a synchronous serial output. The /NOPB suffix indicates a lead-free, RoHS-compliant finish assembled on a Tube or Tray carrier. An ADC (analog-to-digital converter) is a data-conversion integrated circuit that translates a continuous analog input voltage into a discrete digital code. SAR ADCs use a binary-weighted capacitive DAC and a comparator to converge on the input voltage in N conversion cycles, where N is the resolution in bits; the COP434 family is the 8-bit implementation of this architecture. ADCs sit within the broader data-converter hierarchy: data converter -> ADC -> SAR ADC, and they belong to the data-conversion sub-system of mixed-signal ICs, interfacing directly with microcontrollers or FPGAs to digitize sensor signals, voltages, or current loops. The COP434CN/NOPB features an on-chip sample-and-hold, fixed single-ended input ranges referenced to the supply, and a serial interface that minimizes pin count compared to parallel-output ADCs. It is specified for the commercial 0 to 70 C temperature range and 8 analog input channels (the COP434 part number uses "34" to indicate this 4-to-8-channel family). The die is fabricated on a mature CMOS process that has been in volume production for decades, contributing to the device's longevity and low unit cost in distribution. Typical applications include digital panel meters, simple data-acquisition front-ends, microcontroller-based sensor reading boards, industrial control and instrumentation, building automation sensor interfaces, and legacy replacement of the older ADC083x series. Because of its wide availability, simple serial protocol, and DIP-14 footprint, the part is favored for breadboarding, hobbyist projects, and through-hole industrial designs where surface-mount assembly lines are not available. Designers should note that the COP434 family's clock and serial interface require a minimum SCLK frequency for valid conversions and that its input voltage range is single-supply and ratiometric to VCC. Decouple VCC with a 0.1 uF ceramic capacitor placed within 5 mm of the supply pin and keep analog/digital grounds joined at a single star point to avoid conversion noise.
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.
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.
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.
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.
CS5505-ASZR - 16-Bit 4-Ch Sigma-Delta ADC | Cirrus Logic
The Cirrus Logic CS5505-ASZR is a 16-bit, 4-channel, low-power CMOS Sigma-Delta analog-to-digital converter (ADC) in a 24-pin SSOP package, supplied on tape-and-reel. It offers a single converter core with four differential/quad single-ended input channels selected via an on-chip multiplexer, making it well-suited for low-frequency measurement of physical, chemical, and biological signals. What is a Sigma-Delta ADC? A Sigma-Delta (Σ-Δ) ADC is a converter architecture that oversamples the input signal and uses noise shaping to push quantization noise out of the baseband. The result is high resolution and excellent noise immunity at the cost of input bandwidth, which is why Σ-Δ converters like the CS5505-ASZR are categorized as data-acquisition ADCs sitting beneath the hierarchy of ADC → data converter → signal chain IC → semiconductor. They are the standard choice for precision sensor readout, weighing scales, strain gauges, thermistor bridges, and process-control loops where signals are sub-kHz and resolution dominates over speed. Key features of the CS5505-ASZR include 16-bit resolution, 4 input channels multiplexed to a single Σ-Δ core, low power consumption suitable for battery-powered instrumentation, on-chip digital filtering, and an SPI/serial-compatible interface. The -ASZ suffix denotes the 24-SSOP industrial temperature grade, and the -R suffix indicates tape-and-reel packaging, allowing direct compatibility with high-volume automated assembly. Architecturally, the CS5505 uses a switched-capacitor modulator followed by a digital decimation filter, enabling high effective resolution at low update rates. The 4-to-1 input mux allows the designer to rotate among four sensors using one converter, lowering BOM cost in multi-channel systems. Synchronization is handled by a dedicated calibration and control register set. Typical applications include industrial weighing scales, pressure transducers, temperature measurement systems with RTD or thermocouple front ends, and portable medical instruments such as glucose or blood-pressure monitors. Wherever a low-frequency, high-resolution, multi-channel readout is needed, the CS5505-ASZR provides a single-chip solution. When designing with this device, route analog and digital grounds as separate nets joined only at the ADC's AGND pin, and decouple AVDD and DVDD with 0.1 µF ceramic capacitors placed within 5 mm of the supply pins. This page synthesizes distributor pricing, drop-in alternatives from the same family, and practical design notes not found in the manufacturer datasheet alone.
CS5507-ASZ - 16-Bit Low-Power Sigma-Delta ADC SOIC-20 | Cirrus Logic
The Cirrus Logic CS5507-ASZ is a 16-bit, low-power, single-channel CMOS sigma-delta analog-to-digital converter (ADC) housed in a 20-pin SSOP (ASZ suffix) package. The CS5505/CS5506/CS5507/CS5508 family targets low-frequency measurement of physical, chemical, and biological signals in industrial, medical, and process-control instrumentation. According to the Cirrus Logic datasheet, the CS5507-ASZ provides 16-bit resolution (the family also includes 20-bit variants CS5505/CS5506 for higher precision), a differential input, and selectable external or internal voltage reference. An ADC (Analog-to-Digital Converter) is a data-acquisition integrated circuit that samples continuous analog signals and outputs discrete digital codes for downstream microcontrollers, DSPs, or processors. Sigma-delta (also written sigma-delta or delta-sigma) ADCs use oversampling and digital noise shaping to achieve high resolution and excellent noise immunity, making them well suited for precision DC and slow-moving signals rather than high-bandwidth audio. Within the data-converter hierarchy, the CS5507 belongs to the precision low-frequency measurement subcategory, positioned between general-purpose SAR ADCs and high-resolution audio ADCs. Key features of the CS5507-ASZ include a 4-channel multiplexer (MUX) front-end, an SPI-compatible serial data interface, differential input capability, very low power consumption suitable for battery-powered sensors, and an internal digital filter. The serial interface simplifies isolation and reduces pin count compared to parallel-output ADCs that require 16+ dedicated data lines. The device uses a switched-capacitor delta-sigma modulator followed by a digital low-pass filter, outputting 16-bit two's-complement codes over SPI. Power is typically derived from a single +5V analog supply, with separate analog and digital ground domains to maximize noise rejection in mixed-signal layouts. Typical applications include industrial weigh scales and load-cell amplifiers, temperature and pressure transducer digitizers, process-control 4-20 mA loop readbacks, battery-powered medical telemetry, and portable gas/chemical sensor instrumentation. The combination of low power and 16-bit precision suits remote, maintenance-free sensor nodes where the ADC must run for years on primary cells. When designing with the CS5507-ASZ, place the external reference decoupling capacitor as close to the REF pin as possible and keep digital return currents off the analog ground plane to avoid conversion-noise coupling. Use the SPI clock not exceeding the datasheet-specified maximum to ensure the digital filter settles correctly within the conversion window. This page synthesizes distributor pricing, same-family CS55xx drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
CS5507-ASZR - 16-Bit Sigma-Delta ADC, 20-SOIC | Cirrus Logic
The Cirrus Logic CS5507-ASZR is a 16-bit, low-power, single-channel sigma-delta analog-to-digital converter (ADC) housed in a 20-pin SOIC wide-body package, supplied on tape and reel. According to verified distributor listings, the device integrates one differential input channel, an on-chip digital filter, and supports both internal and external voltage reference connection options. It is part of the CS5505/CS5506/CS5507/CS5508 ADC family, designed for measuring low-frequency signals in process-control, instrumentation, and sensor-interface applications. A sigma-delta ADC is a class of oversampling converter that trades raw speed for very high resolution by pushing quantisation noise out of the baseband with a modulator and a digital decimation filter. In this hierarchy, the CS5507 sits below general-purpose successive-approximation (SAR) ADCs in speed but above them in effective resolution at low input frequencies, making it a member of the precision low-frequency data-acquisition category of mixed-signal integrated circuits. Key features include 16-bit (no missing codes) resolution, single +5V analog supply operation, low power consumption suitable for battery-powered measurement systems, and a serial output interface that simplifies galvanic isolation and PCB routing. The differential input stage allows direct connection to bridge sensors such as load cells and strain gauges without additional instrumentation amplifiers in many cases. Typical applications include weigh scales, industrial pressure transducers, temperature-bridge digitisation using RTDs or thermocouple front-ends, and portable medical or environmental monitoring instruments. The wide-body 20-SOIC package aids hand prototyping and inspection while still supporting automated assembly. When designing with the CS5507-ASZR, place the external reference bypass capacitor as close to the REFIN+/REFIN- pins as practical and keep digital and analog grounds separated under a single tie-point to preserve CMRR. The complete ordering suffix -ASZR indicates 20-SOIC package, commercial temperature grade, and tape-and-reel packaging.
CS5520-BSZ - 20-bit Bridge Transducer Sigma-Delta ADC | Cirrus Logic
The Cirrus Logic CS5520-BSZ is a 20-bit, single-channel, sigma-delta analog-to-digital converter purpose-built for digitizing low-level signals from strain gauges, load cells, and pressure transducers. Housed in a 24-pin SOIC package, the CS5520-BSZ integrates a software-programmable instrumentation amplifier, on-chip digital calibration, and a synchronous SPI-compatible serial interface, achieving 20-bit resolution at output word rates up to 60 samples per second. It operates from a single +5 V analog supply plus a +3 V to +5 V digital supply, drawing a quiescent current of approximately 6.7 mA. A sigma-delta (Σ-Δ) ADC is a converter that oversamples an input signal at a much higher rate than the Nyquist frequency and uses noise-shaping feedback to push quantization noise out of the signal band. In the bridge-sensor hierarchy, the CS5520-BSZ belongs to the precision transducer ADC class, which sits between general-purpose ADCs and dedicated strain-gauge signal conditioners, sharing the role of power management ICs and amplifiers in the broader mixed-signal IC family. By integrating excitation-current sources and instrumentation gain on-chip, the CS5520-BSZ replaces what would otherwise be a multi-chip front-end (sensor + INA + 24-bit ADC + MCU interface logic). Key differentiating features include four software-selectable differential analog input ranges (±25 mV, ±55 mV, ±100 mV, and ±250 mV referenced to the on-chip common-mode voltage), a programmable-gain instrumentation amplifier with gains of 1, 2, 4, 8, 16, 32, 64, and 128, an integrated constant-voltage or constant-current bridge excitation block, and a low-noise chopper-stabilized front-end with digital filter options (sinc³ or sinc¹). The CS5520 also supports DC or AC bridge excitation, allowing ratiometric measurement configurations that cancel 1/f noise and lead/drift over the bridge line. Architecturally, the device uses a second-order sigma-delta modulator whose bit-stream is decimated by an on-chip digital filter, with calibration coefficients stored in on-chip registers to correct gain and offset drift. According to the manufacturer datasheet, the part achieves ±0.0007 %FS nonlinearity (INL) and 20-bit effective resolution at the 60 Sps output word rate, with a noise floor below 1 µVrms at the lowest output rate. The hardware interface is a four-wire synchronous serial port (SCLK, SDO, SDI, CS) reading conversion data after an end-of-conversion flag. Typical applications include weigh scales, force and load-cell instrumentation, process-control pressure transmitters, industrial weighing platforms, and torque/stress measurement systems. The wide input range and high common-mode rejection also make it suitable for battery-cell voltage and strain-bridge temperature compensation in-line monitoring. When designing with this device, ensure that the analog and digital grounds are joined at a single star point and that the bridge excitation traces are routed away from the digital SPI lines to preserve CMRR. Calibration should be performed at the same output word rate as the measurement to avoid scale-shift errors. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single consolidated reference for the CS5520-BSZ.
CS5525-ASZR - 16-Bit Multi-Range Sigma-Delta ADC | Cirrus Logic
The Cirrus Logic CS5525-ASZR is a 16-bit, multi-range, low-noise, low-power sigma-delta analog-to-digital converter (ADC) with a serial (SPI-compatible) interface, housed in a 20-pin SSOP package. It integrates an instrumentation amplifier, a programmable-gain amplifier (PGA), eight digital filter selections, and self-calibration plus system-calibration circuitry, and operates from a single 3 V to 5 V analog supply with an output word rate of up to 3.76 Hz (typical, XIN = 32.768 kHz). A sigma-delta ADC (also written as Delta-Sigma, or Sigma-Delta, ADC) is a converter architecture that oversamples the analog input at many times the Nyquist rate and uses noise-shaping digital filtering to push quantization noise out of the signal band, achieving excellent linearity and effective resolution at low sample rates. Within the broader converter family, the CS5525 sits in the precision-slow-rate (DC-measurement) sub-category between 24-bit audio-grade converters and high-speed successive-approximation-register (SAR) ADCs; it is intended for high-accuracy, low-bandwidth sensor measurements rather than wideband signal acquisition. Key features include 16 effective bits of resolution, true bipolar input ranges (selectable from ±25 mV up to differential ±5 V on dedicated ranges), an input instrumentation-amp front end, a programmable PGA, on-chip 4-bit digital I/O port, and a 4-bit latch compatible with the original CS5505/CS5525 second-source pinout. According to the manufacturer datasheet the converter uses a charge-balanced switched-capacitor modulator followed by a user-selectable SINC filter, which is the architecture that delivers its low input-referred noise at low output word rates. The CS5525-ASZR targets weigh-scale load-cell digitization, thermocouple and RTD cold-junction or linearized readouts, industrial process-control instrumentation, and battery-powered portable instruments that require excellent DC accuracy, integrated gain stages, and self-calibration. Designers choose it where true bipolar inputs, ratiometric reference support, and per-range calibration matter more than bandwidth. When designing with the CS5525-ASZR pay close attention to the analog/digital supply decoupling (a separate quiet AVdd/DVdd pair is recommended), reference selection (a low-drift, low-noise external reference is required to realize the part's best noise and linearity numbers), and the XIN master-clock. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not present in the manufacturer datasheet alone.
CS5526-BSZR - 20-Bit Sigma-Delta Multi-Range ADC | Cirrus Logic
The Cirrus Logic CS5526-BSZR is a 20-bit delta-sigma analog-to-digital converter (ADC) with multi-range input capability, integrated instrumentation amplifier, programmable gain amplifier (PGA), eight selectable digital filters, and self/system calibration circuitry. It is housed in a 20-pin SSOP package and operates over -40C to +85C. According to the manufacturer datasheet, the device targets precision data acquisition applications including weigh scales, process control, and temperature/pressure transducer readout, where its 20-bit resolution and on-chip calibration simplify signal-chain design. A delta-sigma (Delta-Sigma) ADC is a type of oversampling converter that uses high-frequency sampling and digital filtering to achieve high resolution at low bandwidth. The CS5526-BSZR uses this architecture to convert low-frequency analog signals (typically thermocouples, strain gauges, RTDs, and other sensors) into a serial digital output. Within the broader component taxonomy, it belongs to: ADC -> data converter -> signal chain IC -> mixed-signal semiconductor. Key features include 20-bit resolution (no missing codes), selectable input ranges (multi-range input voltage), a PGA providing gain settings of 1x, 2x, 4x, 8x, 16x, 32x, and 64x for low-level signal conditioning, and an integrated instrumentation front-end that simplifies direct bridge-sensor interfacing. The serial interface is SPI/QSPI/MICROWIRE-compatible. Eight digital filter selections allow trade-offs between output data rate and 50Hz/60Hz rejection, while on-chip calibration removes offset and gain errors at power-up or on demand. The CS5526-BSZR uses a charge-balancing architecture with a modulator and SINC-style digital decimation filter, achieving effective resolution through oversampling. The integrated chopper-stabilized instrumentation amplifier minimizes drift and 1/f noise. Power consumption is low (typical quiescent current in the few-mA range) for use in loop-powered or battery-backed industrial transmitters. Typical applications include weigh scales (load cell readout), process-control analog input modules, temperature measurement using thermocouples or RTDs, pressure transmitters, and medical instrumentation where a high-resolution serial-output ADC is required. The multi-range PGA allows a single device to handle 4-20mA current-loop voltage drops, 0-10V process signals, and microvolt-level sensor outputs. When designing with this device, ensure stable analog and digital supply decoupling (a 0.1uF ceramic plus a 10uF tantalum within 5mm of AVDP/DVDP pins), keep analog and digital grounds separated until joined at one star point near the IC, and program the calibration register at power-up to remove board-level offset. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.