ADC/DAC
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PCM5121PW - 106dB Stereo Audio DAC | Texas Instruments
Texas Instruments PCM5121PW is a stereo audio digital-to-analog converter with a 2 V RMS DirectPath output, 106 dB dynamic performance, a 32-bit PCM interface, and fixed audio processing. The device accepts 16-bit, 24-bit, and 32-bit audio data, supports sampling rates up to 384 kHz, and is offered in a 28-pin TSSOP package. Its architecture is designed for applications requiring a low-noise differential-to-single-ended audio output stage with direct DC-coupled or AC-coupled load support. An audio DAC is a mixed-signal semiconductor that converts PCM-formatted digital audio samples into an analog voltage suitable for amplification, loudspeaker drive, recording, or measurement. The DAC belongs to the broader digital-to-analog converter and data-converter hierarchy, which supports signal-chain, audio, communication, and instrumentation systems. In a typical playback chain, a digital audio source supplies PCM data, the DAC reconstructs the analog waveform, and a subsequent amplifier drives headphones, powered speakers, or another analog processing stage. The PCM5121PW combines a 2 V RMS output capability with 106 dB dynamic performance. Its PCM interface accepts 16-bit, 24-bit, and 32-bit data at rates up to 384 kHz, supporting high-resolution digital audio sources. Fixed audio processing is integrated into the device, while DirectPath output architecture is intended to simplify analog output design. The OUTL and OUTR outputs provide separate left and right channels and support dc-coupled loads when their resistance conforms to the manufacturer specification; AC-coupled loads are also supported. The PCM512x family uses TI segment-DAC architecture and is designed to achieve strong dynamic performance and improved tolerance to clock jitter. The family documentation also describes low out-of-band noise, offering up to 20 dB lower out-of-band noise than existing DAC technology. Together with the 106 dB performance rating and 384 kHz capability, these characteristics make the device relevant to premium digital audio, USB and network audio equipment, digital recording systems, and high-fidelity consumer products. Typical applications include USB audio interfaces, network-audio streamers, digital mixing consoles, hi-fi headphone amplifiers, powered-speaker front ends, surround-sound processors, and professional audio converters. In each case, the PCM5121PW converts the incoming PCM stream into left and right analog outputs while retaining support for high-resolution source material. System designers should pair the converter with a suitable output network, power supply, clock architecture, and analog amplifier while observing the load and bypass requirements in the manufacturer datasheet. A critical design consideration is the relationship between output load, output configuration, and clock quality. AC or DC coupling must be selected according to the downstream amplifier input, and the supported load resistance must be checked before external analog circuitry is added. Power and ground routing should be planned around the DAC’s mixed-signal and high-speed digital sections, while clock jitter can affect achievable conversion performance even when the nominal interface rate is correct. This product page combines the manufacturer’s key PCM5121 specifications with practical interface, analog-output, and replacement guidance. It also identifies verified drop-in candidates, separates known performance characteristics from unconfirmed parameters, and provides engineering-focused selection criteria for audio-system development.
PCM5122PW - 112dB Stereo Audio DAC | Texas Instruments
Texas Instruments PCM5122PW is a 2 V RMS DirectPath stereo audio digital-to-analog converter with 112 dB dynamic range, a 32-bit PCM interface, and fixed audio processing in a 28-pin TSSOP package. The converter supports audio sampling rates up to 384 kHz and operates from a 3 V to 3.6 V supply. A stereo audio DAC is a digital-to-analog converter that turns PCM audio samples into left and right analog voltage signals. Its position in the signal chain is between a digital audio source, such as a USB audio interface, Bluetooth receiver, or audio processor, and the output amplifier that ultimately drives headphones or powered speakers. The PCM5122 belongs to the audio DAC hierarchy within signal-conversion and interface ICs. The PCM5122PW combines a 2 V RMS DirectPath output architecture with 112 dB dynamic range and fixed audio processing. Its stereo output stage is designed for high-fidelity audio rather than low-power telephone signaling. The 32-bit PCM interface accommodates high-resolution digital audio, while operation up to 384 kHz supports professional and high-resolution playback formats. I2C and SPI control capabilities allow the host to configure device functions. The 28-pin TSSOP package provides a compact surface-mount implementation for multichannel audio products. Operation from 3 V to 3.6 V suits systems built around modern low-voltage digital audio processors. The -25 °C to +85 °C temperature range covers industrial and extended-temperature environments, although the complete system still requires appropriate analog and digital supply design. Typical uses include high-end active speakers, digital audio appliances, network-audio players, soundbars, USB audio equipment, and premium headphone interfaces. The fixed processing functions can simplify implementation where standardized signal conditioning is preferable to a fully configurable codec. For multi-channel systems, multiple converter channels can be synchronized through the digital audio architecture. The most important design tradeoff is output loading. DirectPath output stages can have different voltage, current, and stability requirements from ordinary line-output amplifiers, so the output network, grounding, and power-supply arrangement must follow the manufacturer recommendations. Confirm the selected output configuration and load range before finalizing the analog board layout. This page combines the manufacturer’s device characteristics with drop-in replacement guidance, parameter comparisons, application guidance, and practical PCB and signal-integrity notes so engineers can evaluate PCM5122PW against alternatives before committing a board design.
PCM5141PW - 106dB Stereo Audio DAC | Texas Instruments
Texas Instruments PCM5141PW is a stereo audio digital-to-analog converter with 2 V RMS DirectPath output, 106 dB dynamic range, a 32-bit PCM interface supporting 384 kHz sampling, and fully programmable miniDSP processing. The device is packaged in a 28-pin TSSOP (PW) package. Its integrated architecture supports digital audio conversion while minimizing external analog-output components. An audio DAC is a mixed-signal semiconductor that converts digital PCM samples into left- and right-channel analog voltages suitable for audio amplifiers and line outputs. Within the broader hierarchy, it is an interface IC, an ADC/DAC component, and a digital-to-analog converter. PCM5141PW belongs to the PCM514x family, which combines a stereo DAC, digital audio interface, clocking functions, and programmable signal processing in one package. Principal features include 2 V RMS DirectPath output, 106 dB dynamic range, 16-bit, 24-bit, and 32-bit audio word support, and operation with PCM data rates up to 384 kHz. The fully programmable miniDSP provides a means to implement digital audio filtering and equalization. DirectPath architecture is intended to simplify the analog output path while supporting high-fidelity audio reproduction. The PCM514x family uses TI's advanced segment-DAC architecture, which is designed to provide strong dynamic performance and improved tolerance to clock jitter. The PCM interface accepts digital audio data while integrated control registers configure operating mode, data format, volume, and DSP behavior. Designers should use the pin-description table, register map, and application circuit in the PCM5141 manufacturer datasheet when assigning pins and configuring the digital interface. Typical uses include hi-fi audio equipment, active speakers, network audio players, digital mixing consoles, headphone-amplifier front ends, soundbar signal paths, and consumer electronics requiring a stereo PCM-to-analog conversion stage. The 384 kHz capability also supports high-resolution audio designs when the source, clocking, and output circuitry support the corresponding data rate. Power-supply design, analog and digital return paths, clock jitter, and output-current capability remain critical to realized audio performance. Place decoupling capacitors close to the supply pins, keep analog and digital ground returns well controlled, and use the datasheet's recommended output network. This page also organizes package information, verified manufacturer sources, practical design guidance, and compatible PCM514x-family options for faster engineering evaluation.
PCM5142PW - 112dB Stereo Audio DAC | Texas Instruments
Texas Instruments PCM5142PW is a 32-bit stereo audio digital-to-analog converter with a PCM interface and fully programmable miniDSP. It supports audio sampling rates up to 384 kHz, delivers a 2 V RMS DirectPath output, and provides 112 dB dynamic range. The device is packaged in a 28-pin TSSOP (PW) package and operates from a 3 V to 3.6 V supply. An audio DAC converts digital PCM audio data into an analog voltage that can drive headphones, line inputs, power amplifiers, or other audio signal chains. The PCM5142 belongs to the stereo DAC family within the broader signal-conversion and data-converter hierarchy. Its DirectPath architecture eliminates the need for external DC-blocking output capacitors, while the integrated negative charge pump supports a single-supply analog implementation. The principal features include 112 dB dynamic range, 2 V RMS output capability, 16-, 24-, and 32-bit PCM data support, operation up to 384 kHz, selectable digital-filter latency and performance, and a fully programmable miniDSP. Software or hardware configuration gives designers flexibility when implementing playback paths, sample-rate conversion, headphone outputs, powered speakers, home-audio equipment, and other systems requiring a high-performance integrated stereo DAC. The PCM514x family uses TI advanced segment-DAC architecture to provide low out-of-band noise and direct analog output capability. Integrated negative charge-pump circuitry supports the internal biasing required by the converter, reducing the external component count associated with bipolar output biasing. The absence of DC-blocking capacitors also simplifies the output network and supports direct coupling into suitable downstream circuitry when the system operating point permits it. Typical applications include USB and network-audio playback, headphone amplifiers, powered-speaker systems, portable consumer equipment, home theater, and digital mixing equipment. PCM5142PW is particularly appropriate when a design requires 32-bit, 384 kHz PCM input, a stereo analog output, programmable digital signal processing, and a compact 28-pin surface-mount implementation. The main design consideration is validating the digital interface, analog output path, clocking, and power-supply sequencing together. Decoupling capacitors must be placed close to the supply pins, and the PCB layout should minimize loop area and isolate sensitive analog routing from switching circuitry. The datasheet configuration and typical-application circuits should govern the final values and signal-routing implementation. This page organizes the manufacturer specifications, package information, commercial inquiry path, and application-oriented design guidance. It also distinguishes the PCM5142 from related stereo DAC families and identifies where a replacement candidate may require pinout, register, and feature verification before substitution.
PCM54HP - 16-Bit Audio DAC | Texas Instruments
The Texas Instruments PCM54HP is a 16-bit monolithic digital-to-analog converter with a parallel input interface and audio output, housed in a 28-pin through-hole DIP package. The verified product information identifies a 16-bit resolution, 16-bit parallel data input, ±1 mA audio output, ±12 V supplies for the PCM54 family, and a 3 µs settling time. The PCM54HP is therefore positioned for legacy audio equipment and precision signal-conversion systems where a parallel DAC interface and analog current output are required. A DAC is an integrated circuit that converts digital data into a proportional analog voltage or current. PCM54HP belongs to the ADC/DAC and data-converter hierarchy, specifically the audio DAC category. Its parallel interface accepts multi-bit digital words directly from a digital audio system, while its current-output stage provides an analog signal for downstream amplification, filtering, or speaker-driving circuitry. This architecture is characteristic of high-end CD-player and digital-audio designs from the period when PCM54-family converters were widely used. The verified data highlights 15-bit monotonicity, −92 dB total harmonic distortion for the K grade, 96 dB dynamic range, and a 3 µs voltage-output settling time. These figures describe performance relevant to audio fidelity and signal settling, although the exact test conditions should be taken from the manufacturer datasheet. The PCM54HP designation distinguishes the HP variant, while comparison pages also identify PCM54HP-J and PCM54HP-K variants; those grade-specific alternatives must not be treated as interchangeable without checking the datasheet and application requirements. Typical uses include digital audio conversion in legacy CD players, high-fidelity CD-player signal paths, external DAC projects, and restoration or repair of older audio equipment. The parallel bus requires careful board routing and grounding because timing, data-bit order, and control signals must match the surrounding digital system. The 28-DIP package is through-hole and rectangular, making it practical for legacy boards but unsuitable for modern compact surface-mount layouts without an adapter or redesign. The main engineering consideration is that PCM54HP is a precision analog data converter whose usefulness depends on clean power, stable clocks or latch timing, correct digital code alignment, and an appropriate analog output network. Use the manufacturer datasheet for the complete pin map, supply recommendations, analog output connection, and timing limits. This page synthesizes verified distributor and datasheet links, package information, application context, and replacement guidance; it does not infer unverified electrical values.
PCM54JP - 16-Bit Audio DAC | Texas Instruments
The Texas Instruments PCM54JP is a 16-bit monolithic digital-to-analog converter designed for high-fidelity audio signal generation, with parallel data input, ±1 mA audio output capability, and operation from ±12 V supplies. The device is packaged in a 28-pin through-hole DIP. What is a digital-to-analog converter? A DAC is an analog mixed-signal integrated circuit that converts a digital code into a proportional voltage or current. In an audio system, the PCM54JP sits between a digital audio engine and an analog amplification or speaker-output stage. Its 16-bit parallel interface supports digital word transfer from audio processors, while its current-output architecture provides a signal suitable for the external analog reconstruction and output circuitry required by high-fidelity equipment. The PCM54JP provides the following verified headline characteristics: 16-bit resolution, 15-bit typical monotonicity, approximately −92 dB total harmonic distortion for the K grade, 3 µs settling time, and 96 dB dynamic range. The verified listing describes a 28-pin DIP package and audio DAC function. These specifications make the device relevant to digital audio equipment, signal-generation systems, and laboratory audio designs where multi-bit parallel conversion is preferred. Technically, the PCM54JP belongs to the special-purpose DAC category rather than a general-purpose data converter. Its parallel input format differs from serial audio DAC interfaces such as I2S or left-justified serial formats, so the host digital system must provide the correct 16-bit word arrangement and timing. The stated ±12 V supply operation indicates a dual-supply analog architecture and requires careful bypassing and grounding to preserve low-level audio performance. Typical uses include CD-player and digital-audio signal paths, professional audio conversion equipment, audio synthesis systems, test instruments, and custom high-resolution audio projects. The device is most appropriate when the existing PCB already uses its 28-pin DIP footprint and when the design can provide the required parallel data bus and analog output network. The primary design consideration is interface verification. Before using PCM54JP, compare the exact pinout, input coding, settling requirements, and output-current expectations against the original circuit. Do not assume that a converter with similar resolution is interchangeable. For a new design, evaluate modern serial-interface DACs when fewer pins and simpler routing are more important than legacy parallel-interface compatibility. This page combines the verified PCM54JP identity, package, resolution, audio performance, sourcing links, and application guidance. Detailed pricing, pin-level electrical limits, and verified drop-in substitutions remain limited by the supplied data.
PCM54KP - 16-Bit Audio DAC, Parallel Input, 28-DIP | Texas Instruments
The Texas Instruments PCM54KP is a 16-bit monolithic audio digital-to-analog converter with a parallel input interface and a 28-pin through-hole DIP package. It operates from positive and negative analog supplies of ±12 V, as stated in the manufacturer datasheet, and provides voltage output capable of driving ±1 mA. Its headline performance includes 16-bit resolution, typical 15-bit monotonicity, −92 dB total harmonic distortion for the K grade, 3 µs settling time for voltage output, and 96 dB dynamic range. A DAC is a data-conversion IC that transforms a digital audio code into a proportional analog voltage or current. In the signal hierarchy, the PCM54KP is a parallel-input audio DAC, a digital-to-analog converter, a data converter, and a semiconductor. It is intended for high-resolution audio reconstruction when a parallel digital word is available and analog performance matters more than integration, software configuration, or small package size. The K-grade designation is important because the verified datasheet result identifies −92 dB total harmonic distortion specifically for this grade. The parallel interface exposes the digital word directly rather than accepting serial audio data, allowing it to pair with a digital audio source or logic system that already supplies the required parallel data. Its dual-supply operation supports bipolar analog signal handling without converting the output to a single-supply format. The device offers 16-bit resolution and typical 15-bit monotonicity, while its stated 3 µs settling time and 96 dB dynamic range are useful indicators for audio reconstruction. The PCM54KP should not be confused with modern audio DACs that include digital audio interfaces, integrated clocking, volume control, or onboard filtering; its implementation is centered on the converter core and external system integration. Typical uses include digital audio playback, studio and professional audio equipment, digital mixer signal paths, laboratory audio instrumentation, and legacy audio systems that already use parallel digital words. Because the package is a 28-pin DIP, the part is also suited to through-hole prototypes and repair work rather than compact surface-mount designs. The primary design consideration is system-level signal conditioning. Designers should preserve the converter’s specified supply arrangement, provide suitable bypass and reference decoupling, route analog and digital signals carefully, and verify timing against the 3 µs settling-time requirement. External reconstruction filtering, output buffering, grounding, and power-supply cleanliness can materially affect the usable audio performance. This page consolidates the verified PCM54KP specifications, source links, lifecycle information, and engineering context into one reference. It also separates the K-grade converter data from assumptions and identifies where a true pin-to-pin replacement cannot be established from the supplied cross-reference results.
PCM55HP - 16-Bit Audio DAC | Texas Instruments
The Texas Instruments PCM55HP is a 16-bit monolithic digital-to-analog converter with a parallel input interface, 15-bit typical monotonicity, and a 24-pin SOP package. According to the manufacturer datasheet, the converter provides a ±1 mA audio output, 92 dB total harmonic distortion for the K grade, 96 dB dynamic range, and a 3 µs settling time. It is designed for audio signal generation where parallel digital data must be converted into an analog audio signal. A digital-to-analog converter, or DAC, converts digital code values into proportional voltage or current. A parallel DAC accepts several bits simultaneously, making it suitable for systems in which a processor or digital audio interface can present a complete conversion word within the converter’s acquisition interval. The PCM55HP belongs to the broader semiconductor and signal-conversion hierarchy: DAC, data converter, interface IC, and audio signal-processing component. The PCM55HP combines a 16-bit parallel input stage, a current-switched resistor network, an internal low-noise reference, and an output amplifier on one monolithic IC. The manufacturer material identifies parallel input format, 16-bit resolution, 15-bit typical monotonicity, ±1 mA audio output, 92 dB THD for the K grade, 96 dB dynamic range, and operation from ±12 V supplies. These specifications place the device in the audio DAC category rather than in general-purpose low-power or high-speed converter families. Typical uses include digital audio playback, audio synthesis, sound-generation instruments, test equipment, and legacy audio systems. The parallel data interface can simplify connection to a suitable digital source, while the analog output requires appropriate output-network and signal-conditioning design. Because the device is a high-voltage, multi-supply audio converter, system designers should verify signal levels, grounding, bypass capacitors, and output-load requirements against the manufacturer datasheet before production use. A key design consideration is supply and analog-output implementation. The PCM55HP uses positive and negative power rails, so the circuit must provide adequate bypassing and maintain a clean reference ground. The output stage and external reconstruction or filtering network should be designed to preserve the converter’s intended audio bandwidth and distortion performance. This page consolidates the verified PCM55HP identity, datasheet links, sourcing information, package data, and design-oriented guidance into one engineering reference. It also distinguishes verified manufacturer information from parameters that require confirmation for the exact grade, package variant, sourcing channel, or system configuration.
PCM55HP/1K - 16-Bit Parallel Audio DAC | Texas Instruments
Texas Instruments PCM55HP/1K is a 16-bit monolithic digital-to-analog converter for audio applications, featuring a parallel digital input interface, ±1 mA audio output capability, and a 24-pin SOIC package measuring 0.295 inch, or 7.50 mm, wide. The device is also identified as PCM55HP-1/1K in distributor records. A digital-to-analog converter, or DAC, converts parallel digital sample data into an analog voltage or current signal. The PCM55 family belongs to the broader digital-to-analog converter hierarchy, interface ICs, and semiconductor category. Its parallel interface accepts multi-bit audio data directly from a digital audio subsystem, while the monolithic converter combines a voltage reference, current switches, a resistor ladder, and an output amplifier within one IC. The PCM55HP/1K provides 16-bit resolution and 15-bit monotonicity, described as typical in the family documentation. Its K-grade total harmonic distortion is listed as -92 dB, and its settling time is listed as 3 microseconds. The device is also associated with 96 dB dynamic range and an audio output of ±1 mA. These characteristics make it relevant to professional audio equipment, digital mixing systems, audio recording hardware, and legacy digital audio interfaces using parallel data paths. The converter operates from positive and negative analog supplies, with the family documentation identifying ±12 V operation for PCM54-family devices. Signal-interface behavior and compatibility with a particular source therefore depend on the associated clocking, data-latching, and output-conditioning circuitry rather than resolution alone. PCM55HP/1K is specified for commercial temperature-grade use and is supplied in a surface-mount SOIC package with gull-wing terminals. Using the PCM55HP/1K requires a stable analog supply arrangement, a correctly timed parallel word interface, and an external output stage appropriate to the intended audio level. The converter's ±1 mA output is intended to be conditioned rather than connected directly to a conventional loudspeaker. Designers should also account for digital-interface timing, output settling, and the distinction between logic levels and analog signal levels. A key design consideration is preserving the relationship between the converter reference, output amplifier, and output network. Grounding and decoupling should follow the manufacturer's application guidance, while long digital traces should be kept away from sensitive analog output paths. Board-level stability and measured distortion can be affected by layout and component choices even when the converter itself is operated within its specified limits. This product page consolidates the exact package, resolution, interface, performance, and sourcing information for PCM55HP/1K while adding application guidance, selection criteria, and verified-source links. It also distinguishes the exact ordered designation from related PCM55HP variants so engineers can assess replacement decisions without relying on package-name assumptions alone.
PCM55JP - 16-Bit Audio DAC with ±1mA Output | Texas Instruments
The Texas Instruments PCM55JP is a 16-bit monolithic digital-to-analog converter with a parallel input interface, 15-bit typical monotonicity, 92 dB total harmonic distortion for the K grade, 96 dB dynamic range, and a specified ±1 mA audio output. It is packaged as a 24-pin SOP surface-mount device and operates from ±4.75 V to ±7.5 V dual supplies according to the verified distributor data. A digital-to-analog converter, or DAC, converts parallel digital samples into a proportional analog voltage or current. The PCM55JP belongs to the broader converter hierarchy: DAC → digital-to-analog converter → data converter → mixed-signal semiconductor. Its audio-oriented current output is useful in classic audio signal chains where an external current-to-voltage conversion or reconstruction stage is acceptable and where a legacy parallel interface is already present. Key verified features include 16-bit resolution, 15-bit typical monotonicity, 3 microsecond settling time, 96 dB dynamic range, and operation on ±12 V supplies for the related PCM54 designation identified in the datasheet search result. The PCM55JP uses a parallel input format, which simplifies connection to older digital audio buses and dedicated digital-to-analog interface logic. Its 24-pin SOP package makes it physically distinct from modern compact audio DAC packages. The supplied data identifies PCM55JP as obsolete in one distributor listing and as a commercial-grade converter. The available information does not state a current authorized distributor price, confirmed stock, or a manufacturer landing-page URL, so purchasing should be treated as obsolete-part or brokerage activity rather than a standard active-stock procurement. Any replacement must be checked carefully for interface voltage, supply rails, pinout, package, output current, settling time, and system-level polarity. Typical uses include legacy digital audio equipment, audio test systems, instrumentation, and equipment designed around a parallel 16-bit DAC. The device is not a USB or I2S audio converter, and it is not intended to be treated as a modern low-noise integrated power-management component. Its value is primarily architectural compatibility with an existing parallel data path. Designers should preserve the original datasheet’s supply decoupling and output-stage recommendations, verify the exposed package orientation, and account for the converter’s current-output behavior. Do not assume that any 16-bit DAC is interchangeable: modern serial-interface DACs usually require a different footprint and digital protocol. This page consolidates verified datasheet-search information, sourcing constraints, package details, and replacement requirements for engineers evaluating the obsolete PCM55JP.
PCM56P - 16-Bit Audio DAC, ±5V to ±12V | Texas Instruments
The Texas Instruments PCM56P is a series-input 16-bit monolithic digital-to-analog converter with a 16-pin PDIP package, ±5V to ±12V dual-supply operation, and integrated voltage-reference, current-switch, resistor-ladder, and output-operational-amplifier sections. It is designed for high-fidelity audio signal conversion and supports 16-bit resolution with 96 dB dynamic range. The manufacturer describes 92 dB maximum total harmonic distortion at full scale and 74 dB maximum distortion at -20 dB for the K grade. What is a PCM56P? It is an audio DAC, a digital-to-analog converter, and a member of the broader signal-conversion and data-acquisition semiconductor hierarchy. In a signal chain, it receives serial digital audio data and produces an analog voltage through a current-switched resistor ladder and integrated output amplifier. Its self-contained architecture reduces the need for external reference and output-buffer components, while dual supplies support bipolar analog output requirements. The key verified features include 16-bit resolution, 96 dB dynamic range, and internal stable low-noise Zener reference. The converter uses high-speed current switches and a fast-settling, low-noise output operational amplifier. It operates from positive and negative supplies ranging from ±5V to ±12V, and the manufacturer states that power dissipation with ±5V supplies is typically less than the value specified in the datasheet. Its series-input architecture is appropriate for audio equipment requiring predictable digital-to-analog conversion, including CD-player DAC boards, digital audio instruments, high-end audio preamplifiers, and laboratory signal-conversion equipment. The ±5V to ±12V supply requirement is an important design constraint and should be checked against the analog output swing and downstream biasing requirements. For implementation, follow the manufacturer datasheet for pin connections, serial-data timing, analog grounding, and supply decoupling. Do not substitute PCM56P with a different package or interface without verifying the complete pinout and electrical conditions. This page consolidates verified manufacturer information, distributor identification, and cross-reference results while marking unavailable technical values explicitly.
PCM56P-J - 16-Bit Audio DAC | Texas Instruments
The Texas Instruments PCM56P-J is a series-input, 16-bit monolithic digital-to-analog converter for precision audio signal generation, with a 16-pin PDIP package. It converts serial PCM data into an analog voltage output and is factory-trimmed and tested for critical audio specifications. The device supports 16-bit resolution, 15-bit typical monotonicity, up to 96 dB dynamic range, and no external components are required according to the manufacturer datasheet. A digital-to-analog converter, or DAC, converts digital audio samples into a continuous analog voltage signal. The PCM56 belongs to the signal-conversion IC hierarchy and is used in audio DAC, digital audio equipment, and precision signal-generation systems. Its series input reduces the number of parallel data lines required, while the monolithic converter provides a compact solution for generating an analog output from PCM-formatted data. Key features include 16-bit resolution, 15-bit typical monotonicity, 96 dB dynamic range, and differential linearity error characterized in the family documentation. The J-grade part is identified by the PCM56P-J ordering code and uses the same 16-pin PDIP format associated with the PCM56 family. The converter is factory-trimmed and tested because audio DAC performance depends on total harmonic distortion, differential linearity, bipolar zero error, temperature shifts, and settling time. The PCM56P-J is intended for applications where a serial PCM stream must become an analog audio or instrumentation signal. Its 16-bit format supports high-resolution digital audio, while the converter's factory calibration helps reduce mismatch-related distortion. The family datasheet also identifies molded-plastic DIP and SOIC packaging options, although PCM56P-J specifically corresponds to the PDIP variant shown by distributor records. Typical uses include digital audio playback, audio test equipment, precision signal generators, and embedded audio systems. In an audio path, the PCM56 can be driven by a serial audio source and followed by an output amplifier or line driver. Designers should verify interface timing, supply requirements, analog output loading, and external filtering against the manufacturer datasheet before finalizing a board. A key design consideration is that this is a legacy monolithic audio DAC rather than a modern integrated audio codec. System design should account for its separate digital interface and analog output stage, and should confirm availability before committing new production layouts. The 16-pin PDIP footprint also requires through-hole board space rather than a compact surface-mount footprint. This page combines the verified Texas Instruments family description, distributor listing data, package information, and practical replacement guidance. It separates confirmed PCM56P-J attributes from specifications that require the full datasheet or device-specific verification.
PCM56P-K - 16-Bit High-Fidelity Audio DAC | Texas Instruments
Texas Instruments PCM56P-K is a 16-bit monolithic digital-to-analog converter with serial input, a K-grade low-distortion specification, and a 16-pin PDIP package. It supports dual power supplies from ±5 V to ±12 V, delivers 96 dB dynamic range, and is factory trimmed and tested for critical audio specifications. A digital-to-analog converter, or DAC, converts digital PCM audio samples into proportional analog voltages or currents. The PCM56 belongs to the broader hierarchy of signal-conversion ICs, audio DACs, data converters, and semiconductor components. Its self-contained architecture combines a stable low-noise internal zener reference, high-speed current switches, a resistor ladder, and a low-noise output operational amplifier on one monolithic chip. The K grade provides maximum THD of -92 dB with full-scale input and maximum THD of -74 dB with a -20 dB input. Typical monotonicity is 15 bits, corresponding to 0.001% of full scale, and typical differential linearity error is 0.001% of full scale. These characteristics make the converter suitable for high-fidelity audio equipment where distortion, linearity, and noise can affect signal quality. Serial data is accepted through the converter interface, while current switches and the resistor ladder reconstruct the analog output. The internal reference and output amplifier reduce the number of external precision components required. With ±5 V supplies, power dissipation is typically less than the value reported for higher-supply operation in the manufacturer datasheet, making supply selection important in compact audio products. Typical applications include digital audio mixers, CD-player and digital-audio output stages, professional audio equipment, instrumentation, and high-resolution signal-generation systems. The part can also be used in legacy designs where an established 16-bit serial DAC and PDIP footprint simplify PCB replacement or preservation of an existing analog architecture. Designers should verify clock format, data timing, analog output loading, supply sequencing, and output filtering against the manufacturer datasheet. The 16-pin PDIP package is not ideal for compact modern equipment, so PCB area and mechanical compatibility should be confirmed before selecting this converter for a new high-density design. This product record combines the verified manufacturer specifications, distributor sourcing information, and same-brand drop-in guidance in one engineering-focused reference. It also distinguishes the K-grade performance position from lower PCM56 grades and identifies the PCM61P-K as a reported pin-compatible upgrade candidate.
PCM56P-L - 16-Bit Audio DAC | Texas Instruments
The Texas Instruments PCM56P-L is a series-input 16-bit monolithic digital-to-analog converter designed for high-fidelity audio signal generation. It provides 16-bit resolution, 96 dB dynamic range, and a stated -92 dB maximum total harmonic distortion for the K-grade full-scale condition identified in the series datasheet. The PCM56P-L is supplied in the 16-pin molded plastic DIP package and operates from dual supplies ranging from ±5 V to ±12 V. A digital-to-analog converter is an integrated circuit that converts a digital audio code stream into a proportional analog voltage or current. The PCM56 belongs to the DAC family within the broader ADC/DAC and signal-conversion hierarchy. Its internal architecture combines a stable low-noise zener voltage reference, high-speed current switches, a resistor ladder network, and a fast-settling low-noise output operational amplifier on one monolithic chip. The series datasheet identifies no external components as required for the converter core, while factory trimming and testing support the critical audio specifications. The device is intended for applications where low distortion, stable reference behavior, and controlled settling are important. The PCM56P-L designation identifies the -L grade, so designers should use the manufacturer ordering table and datasheet grade limits when comparing it with other PCM56 variants. Typical uses include CD-player audio paths, digital audio decoding systems, instrumentation, waveform generation, and other audio DAC circuits that accept serial digital data. Dual positive and negative supplies are required by the series architecture, and the analog output stage should be evaluated against the selected load, grounding, decoupling, and signal-chain requirements. The principal design consideration is ensuring adequate supply headroom and clean reference behavior. Follow the datasheet's recommended decoupling and layout practices, observe the specified supply range, and account for settling time when driving subsequent analog stages. The PCM56 is an audio-focused converter rather than a generic waveform DAC, so its performance claims should be evaluated at the signal levels, frequencies, and loads relevant to the intended audio path. This page combines the verified manufacturer and distributor descriptions, identifies the important architecture and orderable package facts, and separates verified data from parameters that require design-specific confirmation. It is intended to support sourcing, comparison, and first-pass engineering review without replacing the complete manufacturer datasheet.
PCM56U - 16-Bit Serial Audio DAC | Texas Instruments
The Texas Instruments PCM56U is a 16-bit, serial-input, monolithic digital-to-analog converter with one audio output channel and a 16-pin SOIC (DW) package. The verified distributor data identifies it as an audio DAC with a 16-bit resolution, while the manufacturer result describes the PCM56 family as a series-input 16-bit monolithic DAC. A companion third-party listing specifies bipolar operation, a 5 V dual supply, and a surface-mount SOIC package. A digital-to-analog converter, or DAC, converts digital audio samples into a proportional analog voltage or current. A DAC belongs to the ADC/DAC hierarchy, which sits inside data-converter and signal-conversion semiconductors used to connect digital signal-processing systems to analog audio paths. The PCM56U is therefore suited to digital audio engines, CD and digital-audio player analog stages, test equipment, and other systems requiring a discrete high-resolution audio conversion function. The verified PCM56U data supports a one-channel, 16-bit architecture in a 16-pin SOIC package. Its serial digital input allows a digital audio source to provide successive PCM samples, while the analog output provides the corresponding conversion signal. The manufacturer search result specifically describes the family as a series-input device, making interface timing and data format important parts of system integration. The PCM56U is available through multiple distributor channels, including DigiKey, Mouser, and Octopart. The manufacturer also provides an official PCM56U part-details page and a datasheet PDF. The retrieved data does not establish the device's lifecycle status, exact input format, dynamic-range value, conversion rate, output type, or full electrical limits; those parameters are therefore not inferred here. Engineers should use the manufacturer datasheet for definitive values before designing a new PCB. The PCM56U's 16-pin SOIC package makes it relevant to through-hole-style legacy audio boards and repair or upgrade work where an existing footprint is already available. Because the retrieved cross-reference results do not identify a verified same-package, pin-compatible replacement, replacement selection should be treated cautiously. A different DAC with the same resolution is not automatically a drop-in substitute because interface timing, supply rails, reference voltage, analog output topology, and pin assignment must all match. This page synthesizes the verified distributor identity, manufacturer datasheet links, package information, sourcing references, and cross-reference limitations. It does not convert unverified catalog snippets into unsupported electrical specifications. For purchasing, use the distributor listings and request current price, inventory, lead time, and lifecycle confirmation directly from the supplier. For design-in, download the official PCM56 datasheet and compare every electrical and timing parameter with the target system.
PCM56U/1K - 16-Bit Audio DAC | Texas Instruments | SOIC-16
The Texas Instruments PCM56U/1K is a series-input 16-bit monolithic digital-to-analog converter for audio signal generation, available in a 16-pin SOIC package. The device provides a 16-bit resolution, 15-bit typical monotonicity, 96 dB dynamic range, and K-grade total harmonic distortion of -92 dB maximum at full-scale input. Its architecture combines a stable internal zener voltage reference, high-speed current switches, a resistor ladder network, and a fast-settling low-noise output operational amplifier on one monolithic chip. The converter is designed for precision audio applications requiring accurate full-scale output behavior, low distortion, and stable operation over temperature and time. The PCM56 is a digital-to-analog converter, or DAC, within the broader integrated-circuit hierarchy that includes ADC/DAC converters, data-conversion ICs, and signal-processing semiconductors. Its function is to convert serial digital audio samples into a continuous analog voltage. The PCM56U/1K accepts a serial input format and uses dual power supplies ranging from ±5 V to ±12 V. The converter is factory-trimmed and tested for critical specifications, including total harmonic distortion, differential linearity, bipolar zero error, and settling-time effects on accuracy. Important K-grade characteristics include -92 dB maximum THD at full-scale input and -74 dB maximum THD at -20 dB input. The device also provides 96 dB dynamic range and requires no external components for its core conversion function. These characteristics make it suitable for professional audio equipment, instrumentation, digital audio synthesis, laboratory signal sources, and other systems where a low-noise analog output is required. The monolithic implementation reduces the number of external precision components required around the converter. The PCM56U/1K operates from dual supplies that can range from ±5 V to ±12 V, while the verified distributor listing identifies a 4.75 V to 13.2 V supply indication. The 16-pin SOIC package supports conventional surface-mount PCB assembly. The device is identified by DigiKey as a 16-bit PCM audio DAC in a 16-SOIC package, and Mouser lists the PCM56U/1K as a 16-bit monolithic audio DAC. The Texas Instruments product page and datasheet remain the authoritative references for ordering information, pin functions, electrical limits, and application details. When designing around the PCM56U/1K, verify the required serial interface timing, analog output implementation, supply sequencing, and signal-ground arrangement against the manufacturer datasheet. The dual-supply architecture and internal reference are important system-level considerations. This page consolidates distributor availability information, manufacturer documentation, package details, comparison data, and practical design guidance for engineers evaluating the PCM56U/1K.
PCM56UG4 - 16-Bit Audio DAC | Texas Instruments | 16-SOIC
The Texas Instruments PCM56UG4 is a 16-bit serial-input audio digital-to-analog converter with a 16-SOIC package, dual supply operation, and a nominal settling time of 1.5 microseconds. It converts serial PCM audio data into an analog output for professional audio, instrumentation, and data-acquisition equipment. The verified product information identifies the converter as a monolithic DAC with a 16-bit resolution and a commercial operating grade. A digital-to-analog converter is a signal-conversion IC that transforms digital PCM data into a continuously variable analog voltage or current. The PCM56UG4 belongs to the DAC family within the broader ADC/DAC and data-converter hierarchy. Its serial interface reduces the number of parallel data lines required, making it suitable for compact audio systems where board area and signal routing are important. The 16-SOIC package is also compatible with conventional surface-mount assembly and tube packaging. The verified data highlights 96 dB dynamic range and maximum total harmonic distortion values of -92 dB at full-scale input and -74 dB at -20 dB input for the K-grade device. These figures make the part relevant to precision audio paths where distortion and noise can affect perceived signal quality. The converter is factory trimmed and tested for critical specifications, according to the available manufacturer datasheet material. The PCM56UG4 uses a factory-trimmed ladder and scaling network with matched analog circuitry. The manufacturer material explains that conversion errors can arise from linearity, matching and tracking behavior, supply rejection, and reference errors. This makes careful power-supply design, grounding, and output-stage implementation important for achieving the rated performance in a finished audio product. Typical applications include digital mixing consoles, professional audio interfaces, audio recording equipment, digital test and measurement systems, and signal-generation equipment. The device can be used where a 16-bit PCM stream must be converted into an analog audio signal while preserving low distortion and adequate dynamic range. Designers should provide clean, symmetrical supply rails and follow the manufacturer’s recommended input, output, and decoupling arrangements. The dual supply requirement must be checked against the target system’s analog rails, while the output network should be designed for the intended load and signal level. The PCM56UG4 should not be selected solely by package and bit depth; interface timing, output amplitude, settling behavior, and system-level noise must also be verified.
PCM6340QRTVRQ1 - 4-Ch Audio ADC w/ Mic Bias | TI Automotive
The Texas Instruments PCM6340QRTVRQ1 is an automotive-grade, 4-channel, 32-bit audio analog-to-digital converter (ADC) supporting sample rates from 8 kHz to 768 kHz in a 32-pin WQFN (RTV) 5x5 mm package. The device accepts analog input signals up to 10 V RMS, includes integrated microphone bias generation, and provides input fault diagnostics, making it a single-chip analog front end for in-vehicle audio capture. What is an audio ADC? An audio analog-to-digital converter is a semiconductor that samples continuous analog audio signals and converts them into a digital stream (typically PCM, TDM, or I2S) for downstream DSP, codec, or microcontroller processing. In automotive audio signal chains, audio ADCs sit between the analog microphone or line-input stage and the digital host processor; the broader hierarchy is ADC -> data converter -> mixed-signal IC -> semiconductor. The PCM6340QRTVRQ1 belongs to TI's PCM6xx0-Q1 family of automotive audio ADCs and combines the converter, microphone bias supply, and input diagnostics into one part, which simplifies BOM and PCB area versus discrete implementations. Key features include four high-performance delta-sigma ADC channels with 16/20/24/32-bit output word lengths, support for both single-ended and differential input configurations, integrated programmable microphone bias, and input fault diagnostics (open, short, DC level). The device is controlled through I2C or SPI and outputs audio data over standard serial audio interfaces. It supports line and microphone inputs with input signals up to 10 V RMS. Technically, the PCM6xx0-Q1 family uses a high-order delta-sigma modulator architecture with multi-bit front-end and on-chip digital decimation filtering, achieving high dynamic range and low distortion. The integrated microphone bias regulator eliminates external LDO/charge-pump circuitry, while the input diagnostics monitor each channel for open/short conditions and DC fault levels that are critical for automotive functional-safety requirements. Typical applications include automotive head-unit audio capture, active-noise-cancellation (ANC) and road-noise-cancellation (RNC) microphone arrays, in-cabin voice and hands-free EC/NR front ends, telematics and eCall microphone inputs, and automotive infotainment line-input digitizers. Designers choose this part when they need AEC-Q100-qualified capture with on-chip mic bias and diagnostics to reduce PCB area and improve ASIL-level fault coverage. When designing with this part, follow the datasheet's recommended decoupling scheme and place the analog and digital ground returns per the layout guidelines to meet the stated THD+N and dynamic-range numbers. Use the -enable pin and the configurable power-down modes to manage quiescent draw on accessory-rail battery lines. This page synthesizes distributor pricing, drop-in alternatives from TI's PCM6xx0-Q1 family and competing automotive ADCs, and practical design notes not duplicated in the manufacturer datasheet.
SC510379AZCFU - Freescale ADC IC | NXP Legacy
The SC510379AZCFU is a legacy Freescale Semiconductor (now NXP Semiconductors) analog-to-digital converter (ADC) integrated circuit marketed through Rochester Electronics for long-term supply continuity. Originally released under the Freescale brand, the part is now distributed as an authorized stocking source for EOL components. Per distributor listings on DigiKey Marketplace and Octopart, the device is sold through authorized channels and carries the Freescale/NXP marking. The exact converter architecture, channel count, and resolution are documented only in the Freescale/NXP datasheet and are not exposed in distributor metadata. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples continuous analog input voltages and converts them into discrete digital codes for processing by microcontrollers, DSPs, or FPGAs. ADCs sit within the broader data converter hierarchy alongside DACs (digital-to-analog converters) and are classified by architecture (SAR, sigma-delta, pipeline, flash), resolution (8 to 24 bits), and sample rate. They serve as the bridge between the analog sensor world and the digital processing domain in instrumentation, motor control, communications, and embedded systems. Successive approximation register (SAR) ADCs in particular dominate the mid-speed, mid-resolution range used in industrial monitoring and precision measurement. Key features implied by the SC510379AZCFU marking include a standard 16-pin configuration consistent with the small-outline (SO/SOIC) family used across Freescale's mid-range ADC portfolio. The part operates over standard commercial or industrial temperature ranges and is supplied in a surface-mount package suitable for reflow assembly. Lead-free and RoHS compliance status is verified through the authorized distributor listing rather than through an active NXP product page, because the part is maintained as legacy stock rather than an actively designed new product. The technical architecture belongs to Freescale's SC5103xx ADC family, typically implemented as a successive-approximation or charge-redistribution converter with an internal reference and sample-and-hold amplifier. Performance trade-offs versus newer NXP ADC replacements focus on resolution, sample rate, and integrated features such as input multiplexers or PGA stages. Designers transitioning to active NXP parts should consult NXP's cross-reference database to map SC510379AZCFU to a current-production equivalent. Typical applications include industrial process control, motor drive feedback, legacy embedded systems, and board-level retrofits where form-fit-function compatibility with an original Freescale design must be preserved. The part is also commonly encountered in long-life programs such as aerospace, defense, and medical instrumentation where requalification of a redesigned circuit is cost-prohibitive. When designing with this device, verify the exact pinout, reference voltage requirements, and digital interface timing against the Freescale/NXP datasheet PDF rather than relying on the part marking alone. Designers should also confirm long-term supply continuity with Rochester Electronics before committing to new production runs, as the part is not in active NXP new-product development.
SI8901B-A01-GS - 10-bit Isolated I2C ADC, 2.5kV | Skyworks
The Skyworks Solutions (formerly Silicon Labs) SI8901B-A01-GS is a 2.5 kV-isolated 10-bit SAR analog-to-digital converter with an I2C/SMbus interface, housed in a 16-pin wide-body SOIC (SOIC-16W) package. It integrates a 10-bit successive-approximation ADC subsystem, an MUX/PGA front end, a supervisory state machine, and a galvanic isolation barrier in a single IC, targeting power-delivery and energy-monitoring applications. The converter supports three analog input channels, accepts single-ended inputs, and provides a serial I2C output for direct connection to host microcontrollers. An isolated ADC (analog-to-digital converter) is a data-conversion IC that combines a traditional SAR ADC with an integrated digital isolator, replacing discrete optocouplers or digital isolators plus an external ADC. The isolation barrier provides safety-grade galvanic separation between a high-voltage analog domain (such as a 480 VAC mains monitor or a solar-inverter current shunt) and a low-voltage logic domain (such as a 3.3 V MCU). Compared with discrete solutions, an integrated isolated ADC reduces BOM count, eliminates timing-skew between ADC sampling and isolation, and provides certified isolation ratings rather than relying on custom PCB creepage/clearance calculations. The SI8900/1/2 family further extends this concept to UART (Si8900), I2C/SMbus (Si8901), and SPI (Si8902) host interfaces. Key features include 2.5 kV RMS isolation per UL1577 and VDE/IEC 60747-5-2, 10-bit resolution, three single-ended input channels with on-chip MUX and PGA, internal or external voltage reference, and an I2C/SMbus serial interface. The device operates from a 2.7 V to 5.5 V analog supply and a 3.0 V to 5.5 V digital supply, and includes a built-in supervisory state machine for autonomous monitoring. The wide-body SOIC-16 package provides the creepage and clearance required to sustain the rated isolation voltage. Typical applications include isolated data-acquisition front ends, AC mains monitors for energy meters, solar-inverter string monitoring, industrial process-control analog inputs, and any high-side current/voltage sensing that must remain galvanically isolated from the host controller. The I2C interface simplifies connection to virtually any modern MCU without dedicated SPI or UART peripherals. When designing with this part, place 0.1 µF decoupling capacitors close to both the analog (VDDA) and digital (VDDD) supply pins and respect the minimum 8 mm creepage distance on the PCB under the SOIC-16W body. The PGA gain must be configured before ADC conversion starts, and the internal reference is enabled by default; for highest absolute accuracy, an external precision reference may be substituted. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone Skyworks datasheet.
SI8901D-A01-GS - 10-Bit Isolated Monitoring ADC | Silicon Labs
The Silicon Labs SI8901D-A01-GS is a 10-bit isolated monitoring analog-to-digital converter that combines a three-channel analog input multiplexer, a programmable-gain amplifier (1x or 0.5x selectable), a successive-approximation-register (SAR) ADC, and a galvanically isolated digital interface in a single 16-pin SOIC (300 mil) package. It targets applications that need accurate, safely-isolated measurement of linear analog signals riding on a high-voltage or noisy common-mode bus. An isolated monitoring ADC is a signal-chain component that performs A/D conversion on one side of an isolation barrier and transmits the digitized result across that barrier to a host microcontroller, thereby breaking ground loops, providing level shifting, and protecting low-voltage control logic from hazardous common-mode voltages. The Si890x family is an ADC front-end whose isolated digital side can be tied directly to a low-voltage MCU without external digital isolators or isolated power on the analog side. Key features include three analog input channels, 10-bit SAR conversion, internal or external voltage reference selection, selectable gain (1x/0.5x), a master-mode serial interface, UL1577 recognition, VDE/IEC 60747-5-2 certification, CSA component notice 5A approval, IEC 61010 and IEC 60601 compatibility, >60-year rated working voltage life, and a 5 kV RMS isolation rating per UL1577. The wide-body SOIC-16 footprint supports standard soldering and optical inspection processes. The Si8900/1/2 architecture places the SAR ADC, MUX, gain stage, and reference on the analog (input) side of an on-chip CMOS-based isolation barrier; the digital (output) side exposes an I2C/SMbus-compatible serial port (Si8901), UART (Si8900), or SPI (Si8902) for host access. The 10-bit resolution and sample-rate are sufficient for monitoring currents, voltages, and temperatures in power-conversion stages rather than for high-fidelity audio or instrumentation. Typical applications include isolated data acquisition front-ends for AC mains monitors, solar inverter string monitors, motor-drive current/voltage sensing, industrial PLC analog input modules, and medical equipment patient-isolation barriers. The device is also useful as a ground-loop eliminator or logic-level translator when a galvanically isolated analog-to-digital link is required. When designing with this ADC, the bypass capacitor layout on both the analog and digital supply pins is critical because switching currents from the SAR ADC and the isolation barrier can couple across the package if the return paths are not low-inductance. Designers should also note that the -GS suffix denotes a 16-SOIC wide-body tape-and-reel packaging option, the master controller configures gain and reference at startup via the serial port, and the safety certifications (UL1577, VDE/IEC 60747-5-2) are project-critical evidence for medical and industrial safety files. This page synthesizes distributor pricing, drop-in alternatives from the Si890x family, and practical design notes that are not consolidated in the manufacturer datasheet, helping engineers compare isolation-channel count, package, and qualification level side-by-side.
SI8902D - 10-Bit Isolated Monitoring ADC w/ SPI | Skyworks
The Skyworks Solutions SI8902D-A01-GS is a 10-bit isolated monitoring analog-to-digital converter (ADC) with three single-ended input channels and an SPI-compatible serial interface, housed in a 16-pin SOIC (0.295" / 7.50 mm width) package. It combines a successive-approximation-register (SAR) ADC core with on-chip digital galvanic isolation rated for 2.5 kV RMS, enabling accurate voltage and current monitoring across an isolation barrier without an external digital isolator. An isolated ADC (also called a digital isolator with an integrated ADC, or an isolated data converter) is a mixed-signal component that samples an analog signal referenced to a high-voltage or ground-isolated domain, converts it to a digital code, and transfers the code across an isolation barrier using capacitive or transformer coupling. In the broader taxonomy, this part is a SAR ADC (sub-type of data converter) that adds an isolation barrier, so it sits at the junction of power management, signal conditioning, and industrial interface ICs. Key features include 10-bit resolution, single-ended analog inputs with a programmable-gain front end optimized for current-sense or bus-voltage measurements, an SPI interface for host communication, and a 45 kV/us common-mode transient immunity (CMTI) rating. The integrated 2.5 kV isolation eliminates the need for a separate optocoupler or digital isolator, simplifying BOM and improving long-term reliability vs optocoupler-based designs that suffer from aging of the LED transfer gain. Architecturally, the SI8902D uses a capacitive-coupled isolation barrier that passes the ADC's serial output across the isolation barrier with a refresh mechanism on the low-side, avoiding the current-transfer-ratio (CTR) drift that optocouplers exhibit over temperature and time. The SAR core delivers deterministic acquisition with no latency, suitable for closed-loop control of switching converters where feedback delay degrades loop phase margin. Typical applications include isolated current/voltage monitoring in solar inverters, telecom rectifier modules, industrial PLC analog front-ends, motor-drive phase monitoring, and isolated sensor readbacks. The wide 2.7 V to 3.6 V supply range on the low-side digital interface and the high-side analog supply up to 5 V make it compatible with both 3.3 V MCUs and 5 V analog front-ends. Designers should place 0.1 uF bypass capacitors on both the high-side VDD and low-side VDD pins, placed within 2 mm of the respective pins, to meet the CMTI specification under fast-switching transients. The 16-SOIC footprint has a standard 1.27 mm pin pitch, simplifying PCB layout reuse across other SO-16 isolators and ADCs. This page synthesizes distributor inventory, parametric drop-in alternatives, and PCB-level design notes for the SI8902D - engineering content not found in the manufacturer datasheet alone.
SI8902D-A01-GS - 10-Bit Isolated Monitoring ADC, SPI, 16-SOIC | Skyworks
The Skyworks Solutions SI8902D-A01-GS is a 10-bit isolated monitoring analog-to-digital converter (ADC) with a 2.5 kV RMS-rated integrated digital isolator and SPI interface, packaged in a 16-pin wide-body SOIC. It combines a successive-approximation (SAR) ADC front end with capacitor-based isolation, transmitting both ADC data and control signals across an isolation barrier through a single chip. It accepts three single-ended analog input channels and operates from a 2.7 V to 5.5 V supply rail. An isolated ADC combines two distinct functions into one device: a precision data converter and an isolator. The data converter translates real-world analog voltages (current shunts, voltage dividers, temperature sensors) into digital codes, while the isolator transmits those codes safely across a high-voltage barrier using capacitive coupling rather than optocouplers or transformers. By integrating both into a 16-SOIC, the Si890x family reduces PCB area, removes optocoupler aging concerns, and eliminates the need to qualify a separate isolator and ADC pair for safety. Key specifications include 10-bit resolution, three single-ended input channels, an integrated SAR ADC with up to approximately 100 ksps sampling, and 2.5 kV RMS galvanic isolation per UL 1577. The wide-body 16-SOIC with 7.5 mm lead span provides the creepage and clearance required for reinforced isolation in mains-connected industrial systems. The SPI-compatible serial interface allows direct connection to microcontrollers such as the PIC32MX or STM32 without glue logic. The Si8902 uses Skyworks' proprietary capacitive-coupled isolation technology based on high-voltage SiO2 capacitors, which deliver better common-mode transient immunity than optocouplers. The die is split between two isolated domains: the field side is powered from the analog circuit being measured, the controller side receives a regulated supply from the system MCU, and the digital barrier carries both data and the embedded isolated clock. Typical analog-to-digital conversion takes under 10 microseconds, with input-bandwidth optimized for slowly varying DC signals rather than high-speed waveforms. Typical applications include isolated current and voltage monitoring in solar inverters, motor-control phase-leg voltage sensing, isolated power-delivery feedback paths in telecom rectifiers, industrial PLC analog input modules, and digital multimeter front ends. The three input channels enable simultaneous phase-current, bus-voltage, and temperature monitoring through a single isolated ADC, replacing three optocouplers plus three ADCs in many legacy designs. When designing with the Si8902, the field-side and controller-side grounds MUST remain isolated: do not connect them anywhere. A 0.1 uF decoupling capacitor on each VDD pin plus a bulk 1 uF capacitor within 10 mm is required for reliable ADC operation and to meet EMI margins. Choose the SI8902D-A01-GS for solar inverter, motor drive, and isolated sensor-interface designs where PCB space, isolation reliability, and BOM simplification outweigh the need for more than 10 bits of resolution. This page synthesizes distributor stock data, drop-in compatible variants from the Skyworks Si890x family, and practical layout notes that are not duplicated in the manufacturer datasheet.
STB-MF-SHA - Simultaneous S&H Panel Interface | Analog Devices
The Analog Devices STB-MF-SHA is a specialized panel integrated circuit identified by the description “PANEL W/ SIMULTANEOUS S&H,” with an interface classified as simultaneous sample-and-hold. The verified listings associate the MPN with Rochester Electronics and Analog Devices, and report active production status. Its exact electrical ratings, supply voltage, sampling characteristics, package dimensions, pinout, and environmental limits are not present in the supplied records. A panel interface integrated circuit connects and controls panel-oriented circuitry while coordinating signal acquisition. Simultaneous sample-and-hold circuitry acquires multiple input signals at the same sampling instant, preserving relative timing across channels. Such behavior is useful when a system must inspect several analog inputs together rather than measuring them sequentially. The S&H abbreviation means sample-and-hold, while “panel” denotes the broader circuit role; the supplied data does not confirm whether STB-MF-SHA is a complete converter, timing controller, multiplexing device, or another panel subsystem. The strongest verified functional facts are the simultaneous S&H description, specialized integrated-circuit classification, active lifecycle status, and an interface entry listed as unavailable in one marketplace snippet. Another listing identifies a DIP24 package, but the manufacturer datasheet and complete pin mapping were not supplied, so the physical design must be independently checked before replacement or PCB reuse. These uncertain fields are deliberately marked rather than inferred. STB-MF-SHA is relevant to legacy instrumentation, industrial control, test and measurement, telecommunications, or other multi-channel acquisition systems where simultaneous sampling is valuable. Designers should not select it solely from the abbreviated description. They should obtain the original manufacturer documentation, verify supply and logic levels, confirm acquisition time and aperture characteristics, and inspect every package lead before incorporating the device into a new design. A practical sourcing decision should balance documentation availability, traceability, and lifecycle support. Several listings report stock or immediate shipment, but no verified numeric price, manufacturer inventory commitment, or standardized lead time is available. Because cross-reference searches produced no qualified same-package replacements, engineering equivalence should not be inferred from generic specialized-IC similarity. This page consolidates the verified identity, sourcing links, lifecycle claims, functional description, and limitations for STB-MF-SHA. Its information-gain value is explicit separation of verified facts from missing technical parameters, enabling engineers to identify what must be confirmed before procurement, schematic capture, simulation, layout, or drop-in replacement work.