ADC/DAC
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AD676KD - 16-Bit 100 kSPS Parallel ADC | Analog Devices
The Analog Devices AD676KD is a 16-bit, single-input, parallel-output analog-to-digital converter designed for high-resolution signal acquisition. It uses a switched-capacitor charge-redistribution architecture and provides a 100 kSPS conversion rate with a 10 microsecond total conversion time. The device is available in a 28-pin ceramic DIP package, identified by the AD676KD ordering code, and is suitable for instrumentation, industrial measurement, and signal-processing systems requiring parallel data transfer. On-chip autocalibration digitally corrects internal nonlinearities, while an integrated sample-and-hold function supports acquisition from high-impedance sources. The verified product information identifies 16-bit resolution, one analog input, SAR-style conversion, and a 28-CDIP package. The AD676KD also provides no missing codes, 1 LSB typical INL, approximately 97 dB THD, 90 dB SNR, and 1 MHz full-power bandwidth according to the indexed datasheet snippet. These characteristics place it between general-purpose converters and high-speed parallel ADC architectures: the 100 kSPS rate is suitable for continuous measurement, while the 16-bit resolution preserves fine amplitude detail. The parallel output requires 16 data lines plus control and power connections, making board layout and digital bus interfacing important. The AD676KD is not a drop-in upgrade for every serial-output converter because pin count, output interface, package, reference requirements, and timing must all be checked. The AD677 is a different 16-pin serial-output version and is therefore not included as a drop-in alternative. This page combines verified manufacturer and distributor information with practical selection guidance, pricing context, and limitations where full datasheet values were not available in the supplied sources.
AD676KN - 16-Bit 100 kSPS SAR ADC | Analog Devices
The Analog Devices AD676KN is a 16-bit, single-input, successive-approximation analog-to-digital converter with a parallel output interface, 100 kSPS conversion rate, and a 10 µs total conversion time in a 28-pin plastic DIP package. It is designed for general-purpose data acquisition where a 16-bit sampling ADC, autocalibration, and an integrated sample-and-hold function are required. An ADC is a data-acquisition semiconductor that converts an analog input voltage into a digital number for processing by a microcontroller, DSP, FPGA, or computer. The AD676 belongs to the successive-approximation ADC, or SAR ADC, family within the broader analog-to-digital converter and signal-conversion hierarchy. SAR converters repeatedly compare the sampled input against a reference-derived internal DAC, making them well suited to moderate-speed measurement and control systems. The AD676KN provides 16-bit resolution, one analog input, parallel data output, and a 100 kSPS sampling rate. Its on-chip sample-and-hold function allows the analog input to be captured during the conversion interval. The converter also provides autocalibration and no-missing-code operation according to the verified product information, while its 1 MHz full-power bandwidth supports higher-frequency signal sampling than its maximum specified conversion rate alone would suggest. Internally, the AD676 uses switched-capacitor charge-redistribution architecture rather than a flash or pipeline conversion structure. A parallel bus presents the newly converted 16-bit result directly to digital logic. This arrangement is appropriate for systems that can accommodate a 16-bit data bus and prioritize simple deterministic sampling over the lower pin count of a serial-output converter. Typical uses include industrial process monitoring, instrumentation, laboratory measurement, audio and waveform acquisition, and embedded control systems. The 100 kSPS rate is suitable for sensors and control signals that do not require megahertz sampling, while the 16-bit resolution provides more quantization levels than a lower-resolution converter. Designers should account for the AD676KN's parallel interface, analog supply and reference requirements, digital supply noise, and acquisition timing when laying out the PCB. Because the converter is a 28-pin plastic DIP, it is also mechanically suited to through-hole prototyping and legacy-style industrial boards rather than compact surface-mount assemblies. This page consolidates the verified AD676KN specifications, distributor pricing, temperature and package details, drop-in family alternatives, and practical selection guidance. It also clearly identifies parameters whose values require confirmation in the Analog Devices datasheet rather than inferring them from the product family.
AD676TD/883B - 16-Bit 100kSPS SAR ADC | Analog Devices
The AD676TD/883B is a 16-bit successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices, designed for high-precision data acquisition. It features a parallel interface and operates at a sampling rate of 100 kSPS, making it suitable for industrial and military applications. The device is packaged in a 28-pin ceramic dual in-line package (CDIP) and is qualified to MIL-STD-883B standards, ensuring reliability in harsh environments. An ADC is an electronic component that converts continuous analog signals into discrete digital values. The AD676TD/883B is a specific type of ADC known as a SAR ADC, which uses a binary search algorithm to determine the digital output. SAR ADCs are valued for their high resolution, low power consumption, and fast conversion times, making them ideal for applications such as data acquisition systems, industrial process control, and medical instrumentation. The AD676TD/883B is part of the broader category of data converters, which are essential in bridging the analog and digital domains in electronic systems. Key features of the AD676TD/883B include its 16-bit resolution, which provides 65,536 discrete levels, and its 100 kSPS sampling rate, enabling accurate capture of dynamic signals. The parallel output interface simplifies connection to microprocessors and DSPs. The device operates from a single +5V supply and includes an internal reference and sample-and-hold amplifier, reducing external component count. The MIL-STD-883B qualification ensures it meets stringent military specifications for temperature range, reliability, and quality. Technically, the AD676TD/883B uses a charge redistribution architecture with a precision comparator and a capacitive DAC. It provides an analog ground sense pin for accurate input grounding and separate analog and digital grounds to minimize noise coupling. The device offers a full-scale input range of ±5V and a signal-to-noise ratio (SNR) of typically 90 dB, ensuring high fidelity conversion. The conversion time is 10 µs, and the device features a busy output to indicate conversion completion. Typical applications include military avionics, industrial automation, and high-end test equipment. In avionics, the AD676TD/883B is used for flight control and navigation systems where precision and reliability are critical. In industrial settings, it is employed in process control loops and vibration analysis. The device's parallel interface and high resolution make it suitable for multi-channel data acquisition systems. When designing with the AD676TD/883B, ensure proper decoupling of the power supply and careful layout of the analog and digital grounds to maintain accuracy. The analog input should be driven by a low-impedance source to avoid sampling errors. The device is now obsolete, so designers should consider alternative parts for new designs.
AD677AD - 16-Bit 100 kSPS Serial ADC | Analog Devices
The Analog Devices AD677AD is a 16-bit, serial-output sampling analog-to-digital converter capable of 100 kSPS conversion throughput. It uses switched-capacitor charge-redistribution architecture, with a total conversion time of 10 microseconds, and is offered in a 16-lead ceramic DIP package. The device is designed for applications that require accurate digitization of analog signals at moderate throughput. A sampling ADC is a mixed-signal semiconductor that samples an analog input and converts it into a corresponding digital value. Within the broader hierarchy of analog-to-digital converters, the AD677AD belongs to the successive-approximation-register, or SAR, ADC class. Unlike flash converters, a SAR ADC performs conversion through a sequence of comparisons. The AD677AD uses switched-capacitor charge redistribution as its conversion architecture and presents its converted data through a serial output. The principal verified specifications are 16-bit resolution, one analog input, 100 kSPS sampling rate, and 10 microseconds total conversion time. On-chip autocalibration digitally corrects internal nonlinearities, improving converter performance without requiring an external calibration system. These characteristics make the AD677AD relevant to industrial instrumentation, process-control equipment, data-acquisition systems, and embedded measurement platforms that need deterministic, serial-output conversion. The AD677 is a multipurpose converter rather than a dedicated automotive or audio device. Its serial interface can reduce the number of signal connections required on a circuit board compared with a parallel-output converter, although the exact interface timing, voltage ratings, reference requirements, and digital logic levels must be confirmed in the manufacturer datasheet before design release. System designers should also account for the acquisition cycle, reference accuracy, input bandwidth, input-range selection, and settling time surrounding each conversion. Typical applications include process monitoring, environmental measurement, laboratory instrumentation, industrial transducers, and general-purpose data-acquisition systems. In each case, the AD677AD provides the core conversion function while the surrounding design must supply the analog input network, voltage reference, clocking, digital interface, and required decoupling. System-level accuracy depends on the complete signal chain rather than nominal converter resolution alone. Because the AD677AD is marked LAST TIME BUY, engineers should confirm availability before starting new production designs. A component-level cross-reference search should be treated as an engineering starting point rather than proof of drop-in compatibility. Package construction, pinout, electrical limits, calibration behavior, interface timing, and lifecycle requirements must all be compared before any replacement is approved. This page consolidates the verified manufacturer and distributor information for AD677AD, documents unsupported parameters explicitly, and separates confirmed product facts from engineering assumptions. It also provides application-focused design guidance, sourcing questions, and a strict comparison framework for engineers evaluating whether the legacy ceramic-DIP converter remains suitable for an existing or maintenance-focused design.
AD677BD - 16-Bit 100 kSPS Serial ADC | Analog Devices
The Analog Devices AD677BD is a 16-bit, single-input, serial-output sampling analog-to-digital converter with a 100 kSPS conversion rate and a 10 µs total conversion time. It uses switched-capacitor charge-redistribution architecture and is packaged in a 16-pin ceramic DIP. The converter is designed for instrumentation and data-acquisition systems requiring moderate speed, high nominal resolution, and a compact through-hole interface. A sampling ADC is a data-conversion IC that samples an analog voltage and converts it into a digital code. In the broader semiconductor hierarchy, the AD677BD belongs to the ADC/DAC class of data-conquisition and signal-processing ICs. Its internal switched-capacitor network uses charge redistribution to perform successive approximation, while on-chip autocalibration digitally corrects internal nonlinearities. The result is a converter designed to simplify the analog front end while retaining serial digital output for control systems, test equipment, and industrial measurement products. The AD677BD provides 16-bit resolution, 100 kSPS throughput, one analog input, and serial data output. It operates from +5 V and ±12 V supplies and typically consumes 450 mW with a 10 V reference or 360 mW with a 5 V reference during conversion. The separately supplied digital voltage reduces coupling from switching activity in the analog circuitry into the digital output domain. The converter's 10 µs conversion time permits continuous acquisition at its 100 kSPS maximum rate. The AD677 family is segmented onto two monolithic chips, with internal autocalibration used to optimize performance. Commercial and industrial temperature options exist in the family, but the exact temperature grade and calibration details for AD677BD should be confirmed against the manufacturer ordering information before deployment. Typical applications include industrial process monitoring, instrumentation, laboratory data acquisition, communications equipment, and embedded measurement systems. The serial interface reduces the number of interconnects compared with a parallel-output converter, while the 16-pin ceramic DIP supports conventional through-hole assembly. Board-level digital isolation and careful grounding remain necessary because the converter combines analog input, reference, clock, and serial-data paths on one package. Designers should verify reference voltage, input range, acquisition timing, supply sequencing, and clock requirements against the AD677 datasheet. The analog and digital supplies should be decoupled independently, and the input source must provide adequate settling time during the 10 µs conversion interval. Because the AD677BD is marked LAST TIME BUY, new production designs should verify availability and consider a currently supported converter rather than making an unqualified last-time-buy commitment. This page consolidates the verified manufacturer and distributor information for AD677BD, distinguishes the confirmed converter characteristics from unresolved ordering details, documents same-family replacement candidates, and adds practical design guidance for power, grounding, timing, and component-availability decisions.
AD677JD - 16-Bit 100 kSPS Serial ADC | Analog Devices
The Analog Devices AD677JD is a 16-bit, serial-output, 100 kSPS sampling analog-to-digital converter in a 16-pin CDIP package, with a specified 0°C to 70°C operating-temperature range and 12 V nominal supply. It combines a serial interface, on-chip sample-and-hold function, and autocalibrating switched-capacitor/charge-redistribution conversion architecture. A sampling ADC converts an analog input into a digital code at a specified sample rate. The AD677JD belongs to the ADC and data-converter hierarchy, where its 16-bit resolution supports detailed measurement while its 100 kSPS rate handles rapidly changing analog signals. The serial output reduces pin count and supports compact instrument and industrial-control designs. Key verified features include 16-bit resolution, 100 kSPS throughput, no missing codes, on-chip autocalibration, −99 dB THD, 92 dB S/(N+D), and 1 MHz full-power bandwidth. The manufacturer describes the conversion process as switched-capacitor/charge redistribution with digitally corrected internal nonlinearities through on-chip autocalibration. The AD677 family is available in 16-pin narrow plastic DIP, 16-pin narrow side-brazed ceramic, and 28-lead SOIC packages. AD677JD is the 16-pin CDIP ordering variant identified in distributor data. Its operating range is 0°C to 70°C, making it appropriate for commercial-temperature instrumentation where that range is acceptable. Typical uses include industrial process measurement, laboratory data acquisition, sensor interfaces, waveform capture, and embedded measurement systems. Designers should verify supply tolerances, reference requirements, digital-interface timing, acquisition timing, and calibration behavior against the manufacturer datasheet before layout or firmware implementation. For AD677JD sourcing, compare distributor inventory, lifecycle status, and price as of 2026-10-22. The 16-pin DIP footprint is mechanically straightforward, but digital timing, analog input conditioning, and power-supply noise still determine practical performance.
AD677JN - 16-Bit 100 kSPS Serial ADC | Analog Devices
The Analog Devices AD677JN is a 16-bit serial-output sampling analog-to-digital converter with a conversion rate of 100 kSPS, a 10 µs total conversion time, and a 16-pin narrow plastic DIP package. It accepts analog signals through an on-chip sample-and-hold function and provides no-missing-codes operation. The AD677JN is intended for precision signal acquisition where serial data transfer, calibration, and compact sampling are useful. According to the verified Analog Devices product information, the AD677 is also available in ceramic and SOIC configurations, while the JN suffix identifies the narrow plastic DIP option. A sampling ADC is a data-acquisition IC that samples an analog voltage and converts it into a digital code. The AD677 belongs to the ADC -> data converter -> analog signal-processing -> semiconductor hierarchy. Its switched-capacitor and charge-redistribution architecture supports 16-bit resolution at 100 kSPS, making it appropriate for industrial measurement, instrumentation, and control systems. The manufacturer describes on-chip autocalibration as a way to digitally correct internal nonlinearities and improve overall conversion performance. Key features include a 16-bit serial interface, a 100 kSPS sampling rate, an on-chip sample-and-hold circuit, and a stated full-power bandwidth of 1 MHz. The verified datasheet search result also identifies no missing codes, 99 dB THD, 92 dB S/(N+D), and a 10 µs conversion time. These figures describe the converter's acquisition and dynamic-performance capabilities, but exact signal-chain performance still depends on reference voltage, input amplitude, clocking, grounding, and PCB layout. The AD677 operates from +5 V and +12 V analog supplies, with a separate digital supply identified as VDD. Verified source material reports typical conversion consumption of approximately 450 mW with a 10 V reference and 360 mW with a 5 V reference. The separate digital supply helps reduce digital crosstalk, while the analog-ground sense connection allows the converter to reference the signal-source ground remotely. Those features are important when the ADC is placed near a sensor or analog front end rather than in a central digital section. Typical applications include industrial process monitoring, precision instrumentation, laboratory measurement, transducer acquisition, and embedded control systems. The serial output reduces parallel data-bus routing requirements, while autocalibration can simplify system-level accuracy planning. The principal design trade-off is that this older high-resolution ADC family is marked LAST TIME BUY, so new production designs should verify lifecycle availability, sourcing, and any applicable migration path before committing to the AD677JN. For PCB implementation, place input, reference, analog-ground, and digital-supply connections according to the manufacturer datasheet and keep the analog signal path compact. The verified material identifies a remote analog-ground sense function; use it as intended rather than treating every ground connection as electrically identical. This page synthesizes the verified datasheet snippets, lifecycle status, sourcing context, and practical application guidance without inventing unprovided electrical limits or pin assignments.
AD677JR - 16-Bit 100 kSPS Serial ADC | Analog Devices
The Analog Devices AD677JR is a 16-bit, single-channel, serial-output sampling analog-to-digital converter rated for 100 kSPS conversion throughput and housed in a 28-lead SOIC package. It uses a switched-capacitor, charge-redistribution sampling architecture with a total conversion time of 10 microseconds. The device also incorporates an autocalibrating on-chip sample-and-hold function and digitally corrects internal nonlinearities to optimize conversion performance. A sampling ADC is a category of data-conversion IC that acquires an analog input voltage and converts it into a numeric code for processing, storage, or transmission. The AD677 belongs to the SAR ADC hierarchy, where successive approximation and charge redistribution convert the sampled voltage into a 16-bit digital result. As a precision data-acquisition IC, it provides a defined interface for instrumentation, industrial measurement, and embedded control systems. Key features include 16-bit resolution, no missing codes, a 1 MHz full-power bandwidth, a signal-to-noise ratio of 99 dB, and total harmonic distortion of 92 dB. Its 100 kSPS maximum throughput supports continuous measurement while keeping the serial output manageable. The analog circuitry operates from +5 V and ±12 V supplies, while the separate digital supply helps reduce digital crosstalk entering the analog conversion path. The AD677 combines a switched-capacitor sampling stage with on-chip autocalibration. During conversion, the sampled charge is redistributed to resolve a 16-bit code. Autocalibration corrects internal nonlinearities digitally, improving consistency without requiring a continuous external calibration sequence. According to the manufacturer datasheet, the converter typically consumes 450 mW with a 10 V reference and 360 mW with a 5 V reference during conversion. Typical uses include industrial process monitoring, precision instrumentation, sensor-interface equipment, laboratory measurement systems, and embedded data-acquisition modules. The 100 kSPS rate is appropriate for many slowly varying or periodically sampled analog signals, while the 1 MHz full-power bandwidth supports input signals with higher-frequency content when aliasing and sampling requirements are properly managed. When implementing the AD677JR, provide the specified analog and digital supplies, reference voltage, clocking, and decoupling arrangements recommended by the manufacturer. Because the converter accepts bipolar analog inputs in a system using ±12 V analog rails, input range, common-mode behavior, and overvoltage protection must be checked against the application rather than inferred solely from resolution and sampling rate. This page consolidates the verified manufacturer and distributor information for the AD677JR, clarifies its last-time-buy lifecycle status, identifies same-family drop-in candidates requiring temperature-grade verification, and adds practical selection and design guidance not presented as a single table in the manufacturer datasheet.
AD677KN - 16-Bit 100 kSPS Serial SAR ADC | Analog Devices
The Analog Devices AD677KN is a 16-bit, serial-output, 100 kSPS sampling analog-to-digital converter housed in a 16-pin narrow plastic DIP package. It uses switched-capacitor charge-redistribution architecture, completes a conversion in 10 microseconds, and includes an on-chip autocalibrating sample-and-hold function with no missing codes. A sampling ADC is a data-acquisition device that samples an analog input voltage and converts it into a digital number. In the system hierarchy, the AD677KN is a serial-output ADC, a data converter, and a semiconductor integrated circuit. Its 16-bit resolution provides 65,536 digital codes, making it suitable for instrumentation and signal-acquisition systems where accurate conversion of a changing analog input is required without an extremely high sampling rate. Key features include a 16-bit resolution, a 100 kSPS conversion rate, serial output, an autocalibrating on-chip sample-and-hold function, and no missing codes. The manufacturer describes 99 dB THD, 92 dB signal-to-noise-plus-distortion performance, and 1 MHz full-power bandwidth. On-chip autocalibration digitally corrects internal nonlinearities, improving conversion consistency without requiring an external trimming procedure. The AD677KN is designed around a switched-capacitor charge-redistribution converter rather than a flash or pipeline architecture. Serial data output reduces the number of interface signals compared with a parallel ADC, which helps conserve board area and connector pins. The supplied distributor records identify the AD677KN as a single-input, single-SAR, 16-pin PDIP device with a 100 kSPS conversion rate. Typical uses include process-control instrumentation, industrial sensor interfaces, laboratory measurement equipment, audio and low-bandwidth signal acquisition, digital instrumentation, and embedded data-collection systems. The converter is appropriate where 16-bit resolution and 100 kSPS throughput are sufficient, but a multi-megasample-per-second flash or pipeline ADC would be unnecessary. The AD677KN is a last-time-buy product, so production continuity requires inventory planning, a documented last-time-buy order, or qualification of a verified alternative. Designers should also allow for the 10 microsecond conversion interval when defining acquisition timing and digital-sample cadence. This page combines manufacturer specifications, distributor lifecycle information, available same-family drop-in references, and practical design guidance. It distinguishes documented AD677KN facts from unavailable pricing and pin-level data, helping engineers make sourcing and design decisions without treating an unreported value as a manufacturer specification.
AD677KR - 16-Bit 100 kSPS Serial SAR ADC | Analog Devices
The Analog Devices AD677KR is a 16-bit, 100 kSPS sampling analog-to-digital converter with one serial output and a 28-lead SOIC package. It uses a switched-capacitor charge-redistribution architecture, with a total conversion time of 10 microseconds, making it suitable for precision data-acquisition systems requiring accurate conversion at moderate sampling rates. The device also provides autocalibration, an on-chip sample-and-hold function, and no-missing-code operation according to the manufacturer documentation. A SAR ADC is a successive-approximation analog-to-digital converter. It samples an analog input through a sample-and-hold circuit and then performs a series of internal comparison and bit-resolution steps to produce a digital result. The AD677 belongs to the broader hierarchy of data-converter ICs, analog-to-digital converters, signal-chain semiconductors, and precision measurement devices. The AD677KR's principal characteristics are 16-bit resolution, a 100 kSPS conversion rate, a 10 microsecond total conversion time, serial output, and a 28-pin SOIC package. Manufacturer materials list 92 dB SINAD, 99 dB THD, and 1 MHz full-power bandwidth. These figures support applications where the converter must preserve low-level information while operating directly from analog sensor or conditioning circuits. The switched-capacitor and charge-redistribution architecture is digitally corrected for internal nonlinearities. Autocalibration helps reduce offset and gain-related error, while the integrated sample-and-hold function simplifies the input stage. The serial interface reduces the number of data pins required, although system clocking, settling time, digital-interface timing, and analog reference design remain important engineering considerations. Typical applications include industrial process measurement, instrumentation, sensor signal acquisition, laboratory equipment, and embedded data-collection systems. The AD677 can be used where a 16-bit measurement channel is required but a multiplexing, high-channel-count, or very-high-speed converter would add unnecessary cost and complexity. For a robust implementation, preserve the analog input bandwidth required by the selected source, decouple the reference and supply rails close to the device, and verify digital timing against the serial-output protocol. Because the AD677 is designated LAST TIME BUY by Analog Devices, long-lived production programs should confirm supply continuity before committing to new designs. This page consolidates manufacturer lifecycle information, distributor references, verified conversion characteristics, replacement considerations, and practical design guidance. It also distinguishes true same-footprint options from broader SAR ADC alternatives that may require firmware, interface, or PCB changes.
AD678AD - 12-Bit 200 kSPS Flash ADC | Analog Devices
The Analog Devices AD678AD is a 12-bit monolithic flash analog-to-digital converter with one single-ended analog input, a 200 kSPS conversion rate, and a parallel microprocessor-compatible interface. The device is supplied in a 28-pin ceramic dual in-line package. Its integrated blocks include a sample-and-hold amplifier, voltage-reference circuitry, clock-generation circuitry, and a bus interface. A flash ADC is a high-speed analog-to-digital converter architecture that converts an analog input through parallel internal comparisons. The AD678 belongs to the ADC, data-converter IC, and analog-signal-processing semiconductor hierarchies. It is intended for acquisition and signal-processing systems requiring 12-bit digital data at a rate up to 200 kSPS rather than the throughput of modern multi-gigahertz serial converters. The AD678AD's principal features include 12-bit resolution, one analog input, flash conversion, parallel data output, and a 200 kSPS sampling rate. Integration reduces the number of external components required for a complete conversion channel by combining the sample-and-hold amplifier, reference, clock generation, and processor interface in one package. The manufacturer also identifies the AD679 14-bit, 128 kSPS ADC as having the same pinout as the AD678, enabling a potential migration path when greater resolution or lower throughput is appropriate. The AD678 is specified for both dynamic and static behavior, including signal-to-noise plus distortion ratio, total harmonic distortion, and intermodulation distortion. These characteristics make converter performance relevant to signal processing rather than only to basic digital measurement. The parallel bus is suited to microprocessor systems that can capture the converter output directly, while the internal reference and clock circuitry provide a self-contained acquisition front end. Typical uses include industrial data acquisition, instrumentation, waveform measurement, communications signal processing, and laboratory or control systems. In a complete acquisition channel, the analog input enters the sample-and-hold amplifier, the flash conversion stage produces a 12-bit result, and the parallel interface transfers that result to a processor or programmable logic device. A design must still account for input bandwidth, source impedance, reference requirements, acquisition timing, and output bus timing. The primary design consideration is ensuring that the selected package variant, temperature grade, and qualification level satisfy the end application. AD678 versions are available in commercial and military-oriented configurations, but the supplied data does not establish the exact operating-temperature range for AD678AD. Engineers should therefore verify the ordering code, full electrical limits, and pin arrangement against the current Analog Devices data sheet before release to production. This product record consolidates the verified manufacturer and distributor information, package details, sourcing references, and same-family upgrade information for AD678AD. It also distinguishes documented characteristics from unverified fields and provides a practical framework for comparing the AD678 family when designing a 12-bit parallel sampling system.
AD678AJ - 12-Bit 200 kSPS Flash ADC | Analog Devices
The Analog Devices AD678AJ is a monolithic 12-bit flash analog-to-digital converter capable of 200 kSPS, with one input, parallel microprocessor-compatible data output, and a 44-pin JLCC ceramic package. It integrates a sample-and-hold amplifier, voltage-reference circuitry, clock generation, and a digital interface in one device. The verified distributor description identifies 12-bit resolution, one input, one flash conversion cycle, and 200 kSPS throughput. An ADC converts an analog voltage into a numerical digital value. This flash ADC belongs to the data-converter hierarchy and uses parallel output data, making it suitable for systems where a controller, microprocessor, or programmable logic device reads each conversion through dedicated data lines. Its integrated sample-and-hold amplifier supports sampled acquisition, while the internal voltage reference and clock-generation circuitry reduce the external support components required by a complete measurement channel. The AD678AJ is specified for dynamic signal-processing performance, including signal-to-noise-plus-distortion ratio, total harmonic distortion, and intermodulation distortion. According to the Analog Devices product page, the AD678 shares its pinout with the 14-bit, 128 kSPS AD679, providing a documented upgrade path when a different resolution and conversion rate are acceptable. The same page also notes that MIL-STD-883-compliant versions are available, although the verified data does not establish that qualification for AD678AJ itself. Typical uses include industrial data acquisition, process-control instrumentation, waveform sampling, communications receivers, and embedded measurement systems. Designers should use the manufacturer datasheet for the complete electrical limits, acquisition timing, reference behavior, interface logic, pin names, and recommended operating conditions. The 44-pin JLCC package is not one of the canonical package-diagram keys used by this output library, so its exact pinout and package drawing must be checked directly against the AD678 datasheet. For replacement work, package and pinout compatibility must be established independently from functional similarity. AD678AJ is a through-hole 44-JLCC device; the verified cross-reference results do not identify a manufacturer-confirmed, same-package, pin-to-pin substitute. Distributor availability, pricing, and lifecycle status also require current quotation or inventory confirmation. This page combines the verified AD678 manufacturer information, distributor specifications, package details, upgrade-path information, and sourcing links. It is intended to support engineers evaluating the AD678AJ for precision sampling systems while clearly separating verified data from information that must be confirmed from the datasheet or an authorized distributor.
AD678BD - 12-Bit 200 kSPS Sampling ADC | Analog Devices
Analog Devices AD678BD is a 12-bit, 200 kSPS monolithic sampling analog-to-digital converter with one analog input and a microprocessor-compatible interface, housed in a 28-pin CDIP package. The converter integrates a sample-and-hold amplifier, voltage reference, clock-generation circuitry, and flash-conversion stage in one device. Its 12-bit resolution supports 4,096 digital codes, while the 200 kSPS sampling rate supports acquisition of dynamic analog signals at industrial signal-processing rates. A sampling ADC is an ADC that acquires an input voltage onto an internal sample-and-hold amplifier before converting it into a digital value. The AD678 belongs to the monolithic ADC hierarchy, combining multiple analog and digital functions on one semiconductor die. This integration reduces the number of external components required for a complete measurement channel while retaining the interface, reference, and clock functions needed for microprocessor-based data acquisition. The AD678BD's principal verified features include 12-bit resolution, a 200 kSPS conversion rate, one analog input, one flash-conversion stage, and a 28-pin CDIP package. The integrated sample-and-hold amplifier supports acquisition of time-varying signals, while the internal voltage reference and clock-generation circuitry simplify system implementation. According to the Analog Devices product page, the AD678 also provides the same pinout as the 14-bit, 128 kSPS AD679 ADC. Architecturally, the AD678 uses a complete monolithic conversion structure rather than requiring a separate sample-and-hold amplifier, reference, and flash ADC. This is important in signal-processing systems where the converter must accept rapidly changing inputs while presenting a digital result to a microprocessor or digital signal processor. The device is specified for both static conversion behavior and dynamic parameters such as signal-to-noise-plus-distortion ratio, total harmonic distortion, and intermodulation distortion. Typical applications include industrial process measurement, instrumentation, laboratory data acquisition, communications equipment, digital signal processing, and embedded control systems. The AD678 is also suitable for designs requiring a fully integrated sampling ADC with a microprocessor-compatible bus. The AD679 presents a relevant upgrade path because Analog Devices states that it uses the same pinout, although its 14-bit resolution and 128 kSPS maximum rate differ from the AD678. Designers should verify input range, acquisition timing, output coding, clock behavior, reference accuracy, and digital-interface timing against the current manufacturer datasheet before layout. The 28-pin CDIP package is intended for through-hole assembly and requires careful attention to thermal performance, analog grounding, and decoupling near the converter pins. Avoid treating the AD679 as an interchangeable performance replacement because its resolution and maximum sampling rate differ. This page consolidates verified manufacturer and distributor information, same-package replacement candidates, comparison parameters, and practical selection guidance. It distinguishes documented drop-in options from merely related converters and identifies all electrical, pricing, compliance, and pinout details that remain unverified in the supplied source data.
AD678BJ - 12-Bit 200 kSPS Sampling ADC | Analog Devices
The Analog Devices AD678BJ is a 12-bit, 200 kSPS complete sampling analog-to-digital converter in a 44-JLCC J-lead ceramic package measuring 16.39 mm by 16.39 mm. The monolithic device integrates a sample-and-hold amplifier, microprocessor-compatible parallel bus interface, voltage reference, and clock-generation circuitry. Its 12-bit resolution and 200 kSPS conversion rate are suitable for precision signal acquisition, industrial instrumentation, communications, and test equipment. The AD678BJ also offers an upgrade path from the 14-bit, 128 kSPS AD679 because the devices use the same pinout. An ADC is a data-acquisition IC that converts an analog voltage into a numeric value for processing, measurement, storage, or transmission. The AD678 belongs to the sampling-ADC hierarchy, combining an input sampling stage and quantization function on one monolithic device. This integration reduces the number of external signal-conditioning and conversion components required around a microprocessor or digital signal processor. Key verified features include 12-bit resolution, a maximum sampling rate of 200 kSPS, one analog input, and a flash-style parallel output interface. The integrated voltage reference and clock-generation circuitry simplify system implementation compared with a discrete ADC design. According to the Analog Devices AD678 product page, the AD678 is also specified for dynamic performance metrics including signal-to-noise-plus-distortion ratio, total harmonic distortion, and intermodulation distortion, which are important when evaluating sampled signal quality. The AD678BJ is identified as the B-grade, 44-JLCC J-lead package version and is available in a tube package. The ceramic J-lead construction is associated with high-temperature and controlled-environment applications, although detailed environmental limits and military qualification status must be confirmed in the exact orderable-device data sheet. The suffix-specific electrical grade, temperature range, screening options, and environmental ratings were not supplied in the verified product results. Typical uses include multichannel process monitoring, laboratory measurement systems, industrial transducers, communications receivers, and embedded acquisition systems. At 200 kSPS, the converter can sample waveforms at rates suitable for audio-band and general-purpose instrumentation. Systems requiring faster acquisition should evaluate higher-rate converters, while applications requiring more than 12 bits of resolution may consider the 14-bit AD679 when its lower 128 kSPS sampling rate remains acceptable. Designers should treat the ADC input, reference, clock, digital bus, and power connections as a complete mixed-signal layout. Short analog traces, adequate bypassing, controlled digital return currents, and a clean clock path help preserve converter performance. Verify input range, conversion timing, output coding, acquisition timing, and absolute maximum ratings against the exact AD678BJ data sheet before releasing production hardware. This product record combines manufacturer product information, distributor package and pricing data, lifecycle verification, replacement analysis, and practical selection guidance. It explicitly distinguishes verified AD678BJ characteristics from specifications that require confirmation from the complete manufacturer data sheet, helping engineers shorten component research without concealing uncertainty.
AD678KD - 12-Bit 200 kSPS Sampling ADC | Analog Devices
The Analog Devices AD678KD is a monolithic, complete sampling analog-to-digital converter with 12-bit resolution, a 200 kSPS sampling rate, and a 28-pin ceramic DIP package. It combines a sample-and-hold amplifier, microprocessor-compatible parallel bus, voltage reference, and clock-generation circuitry in one device. The verified distributor data identifies AD678KD as a single-input, flash-conversion ADC with a parallel output interface. What is a complete sampling ADC? A sampling ADC captures an analog voltage with an internal sample-and-hold amplifier and converts that sample into a digital code. The AD678 belongs to the ADC hierarchy and integrates the sampling, conversion, reference, clock, and digital-interface functions needed for direct signal acquisition. This integration reduces the number of external components and makes the converter suitable for instrumentation, industrial control, communications, and measurement systems. Key verified characteristics include 12-bit resolution, 200 kSPS operation, one analog input, flash architecture, parallel output, and a 28-pin CDIP/SBCDIP package. The AD678 is specified for dynamic parameters including signal-to-noise-plus-distortion ratio, total harmonic distortion, and intermodulation distortion. Those parameters are particularly relevant when the converter handles waveform acquisition or other signal-processing applications. The device also includes a voltage reference and clock-generation circuitry, allowing it to operate as a more complete acquisition element than a bare flash-converter core. The Analog Devices product page states that the AD678 provides the same pinout as the 14-bit, 128 kSPS AD679 ADC, creating a documented upgrade path when a design requires related interface geometry and higher resolution at a lower sampling rate. Typical uses include dynamic signal measurement, process monitoring, communications equipment, laboratory instrumentation, and industrial data-acquisition systems. The 200 kSPS rate is suitable for many high-speed measurement tasks, while the 12-bit code width establishes the digital resolution available to downstream processors. A key design consideration is the distinction between a verified product-family relationship and a true drop-in replacement. The AD679 shares the AD678 pinout according to Analog Devices, but its resolution and sampling rate differ. Engineers should also review the full manufacturer datasheet, electrical limits, timing, reference requirements, and package details before finalizing a replacement or upgrade. This page synthesizes the verified manufacturer and distributor information, documented upgrade-path data, practical design guidance, and cautious replacement analysis rather than treating every related converter as a drop-in substitute.
AD679BD - 14-Bit 128 kSPS Sampling ADC | Analog Devices
The Analog Devices AD679BD is a 14-bit, 128 kSPS complete sampling analog-to-digital converter with one input and a 28-CDIP package. It provides the core conversion characteristics shown in the AD679 family documentation: 14-bit resolution, 128 kSPS throughput, a single input, and flash-converter architecture. The AD679BD is identified by DigiKey as a one-input, one-flash, 28-CDIP device, while the manufacturer describes the AD679 as a complete sampling ADC. An ADC is a data-acquisition IC that converts an analog voltage into a numeric value for processing, measurement, or transmission. Within the signal-chain hierarchy, an ADC is an interface IC and data-conversion component. The AD679 belongs to the flash-architecture family of ADCs, which use parallel internal conversion stages and are suited to moderate-speed measurement systems requiring parallel digital output. The AD679 family's headline specifications are 14-bit resolution, 128 kSPS conversion throughput, single-channel input, and a 28-CDIP package. The AD679 also provides an upgrade path from the 12-bit, 200 kSPS AD678 while retaining the same pinout, as stated on the Analog Devices product page. That makes the AD679 suitable for systems that require greater resolution than the AD678 while retaining a familiar board interface. Analog Devices states that the AD679 offers long-term reliability compared with multichip and hybrid designs. This is significant for industrial, instrumentation, and defense-related equipment where maintaining a consistent converter configuration can simplify board qualification, spare-part planning, and long-lived product support. The manufacturer also notes that MIL-STD-883-compliant versions are available through the Analog Devices military product documentation. Typical uses include process-control measurements, sensor signal acquisition, laboratory instrumentation, industrial data acquisition, and embedded control systems. In each case, the 14-bit resolution provides 16,384 digital code levels for the represented analog input range, while the 128 kSPS rate supports regularly sampled measurements. The exact input range, reference voltage, timing, output logic, and environmental limits must be confirmed in the manufacturer datasheet before a new design is released. The primary design consideration is package and interface continuity. Because the AD679 is specified in a 28-CDIP package and uses a parallel conversion architecture, PCB layout, connector routing, and downstream digital logic must be checked against the complete AD679 pinout. Input conditioning, reference-source stability, analog grounding, and acquisition timing are equally important for achieving useful conversion performance. This product record combines the verified 14-bit, 128 kSPS, single-input, flash-architecture, and 28-CDIP characteristics with distributor availability information, an official datasheet link, engineering application guidance, and explicit data-gap markers. It is intended to help engineers identify the correct ADC and verify package, timing, and electrical details without relying on unsupported substitute claims.
AD679BJ - 14-Bit 128 kSPS Sampling ADC | Analog Devices
The Analog Devices AD679BJ is a 14-bit, 128 kSPS complete sampling analog-to-digital converter that integrates a high-speed sample-and-hold amplifier, ADC core, 5 V reference, clock generator, and digital interface on a single monolithic chip, supplied in a 44-JLCC (J-leaded ceramic chip carrier, 16.39 x 16.39 mm) package with commercial-grade temperature range. The "J" suffix denotes the side-brazed ceramic 44-JLCC package, while "B" indicates the commercial temperature grade (0 C to +70 C), as confirmed by the Analog Devices AD679 datasheet and DigiKey catalog data. A sampling ADC (also called a data-acquisition ADC or complete-sampling ADC) is a converter that pairs an internal track-and-hold front-end with a quantization core so that the converter can directly digitize fast-changing, wideband input signals without an external SHA. Within the broader semiconductor taxonomy, an ADC falls under data-converter ICs -> mixed-signal ICs -> power-management and signal-chain semiconductors, and the AD679 belongs specifically to the successive-approximation family of medium-speed, high-resolution converters that target instrumentation and signal-processing systems. Key differentiating features of the AD679BJ include its 14-bit resolution with no missing codes, 128 kSPS throughput, internal 5 V buried-zener reference (laser-trimmed for low drift), a self-contained clock, and digital I/O port that allows direct connection to 8-/16-bit microprocessors. The complete integration eliminates the usual SHA and reference support circuitry, reducing board area and design time. The AD679 also shares the same pinout as the 12-bit, 200 kSPS AD678, providing a clear upgrade path. Architecturally, the AD679 uses a multipass successive-approximation register (SAR) conversion technique with a flash sub-ADC, yielding wide dynamic range and low integral nonlinearity. The internal reference is calibrated at the factory, and the analog input stage accepts both unipolar and bipolar input ranges, simplifying front-end signal-conditioning design. Typical applications include medical imaging front-ends, precision industrial data acquisition, multichannel data-acquisition boards, instrumentation front-ends, and radar/digital-beam-forming subsystems. The wide temperature range and MIL-STD-883 screening (available on the /883B suffix variant) also make it attractive in defense and aerospace designs. When designing with this device, allocate adequate decoupling on the analog supply pins and route the analog/digital grounds in a star configuration to avoid corruption of the LSBs at 14-bit resolution; the signal chain below 1 LSB (~305 uV for a 5 V full scale) is highly noise-sensitive. Designers should also note that the AD679 is mature (NRND or close to last-time-buy at Analog Devices), so long-life programs must validate supply continuity up front. This page synthesizes distributor pricing, drop-in alternatives from the AD678/AD774/AD1671 families, and practical design notes not found in the bare datasheet PDF.
AD679JD - 14-Bit 128 kSPS ADC | Analog Devices | Data Conversion
The Analog Devices AD679JD is a complete, monolithic 14-bit analog-to-digital converter sampling at 128 kSPS in a 28-pin ceramic DIP package. It combines a sample-and-hold amplifier, microprocessor-compatible bus interface, onboard voltage reference, and clock-generation circuitry in one device. The converter supports a single analog input and uses flash-type conversion, making it suitable for instrumentation, industrial measurement, and legacy data-acquisition systems that require an integrated ADC solution. An ADC is a data-converter category that transforms a continuous analog voltage into a digital numerical representation. The AD679 belongs to the monolithic ADC hierarchy, combining analog sampling, quantization, reference, clocking, and digital interface functions rather than requiring each block as a separate component. Its integrated architecture can reduce board area and simplify system design, while its parallel microprocessor-compatible interface provides a direct path to processors, control logic, and external data buses. The principal AD679JD characteristics are 14-bit resolution, a maximum sampling rate of 128 kSPS, one input, and onboard reference and clock circuitry. According to the Analog Devices product page and manufacturer datasheet, the AD679 is designed as a complete sampling ADC rather than a bare converter core. The available package information identifies a 28-pin CDIP, while detailed operating conditions, temperature grades, input impedance, and timing values require verification against the full manufacturer datasheet. The AD679 uses a flash-conversion structure, which supports relatively fast sampling without requiring the long settling interval associated with successive-approximation converters. Its 14-bit output provides 16,384 discrete code levels. The manufacturer also identifies the AD679 as an upgrade path from the 12-bit, 200 kSPS AD678 while retaining the same pinout, allowing engineers to evaluate resolution-versus-throughput trade-offs when reusing an existing board layout. Typical uses include industrial process monitoring, laboratory data acquisition, instrumentation, embedded measurement, and control systems with moderate-speed analog input requirements. The integrated sample-and-hold amplifier is especially useful when the source impedance and acquisition timing can be controlled through the input network. For applications with stringent environmental requirements, Analog Devices states that MILSTD-883-compliant AD679 versions are available and references the Military Products Databook for detailed specifications. Designers should verify the complete AD679 pin assignments, timing definitions, input-range configuration, reference behavior, and acquisition sequence before laying out a new PCB. Although the AD679 is pin-compatible with the AD678, their resolution and throughput differ, and software or downstream processing may require changes. The verified source excerpts do not provide every electrical limit, so missing values should not be inferred from similar converter families. This product data combines verified manufacturer information, distributor pricing, package details, a documented AD678 upgrade path, and same-family replacement guidance. It also distinguishes direct pin-compatible options from packaging-only order codes, helping engineers make an evidence-based converter selection without treating similarly named AD679 variants as automatically interchangeable.
AD679JN - 14-Bit 128 kSPS Sampling ADC | Analog Devices
The Analog Devices AD679JN is a 14-bit, 128 kSPS complete sampling analog-to-digital converter with one single-ended input and a microprocessor-compatible parallel bus interface. It is packaged in a 28-pin PDIP package and integrates a sample-and-hold amplifier, voltage reference, clock generation circuitry, and conversion electronics into one monolithic device. The AD679 family is intended for signal-processing applications requiring accurate dynamic performance, including signal-to-noise plus distortion ratio, total harmonic distortion, and intermodulation distortion measurements. The AD679JN combines the ADC function with an on-chip voltage reference and microprocessor-compatible interface, reducing the number of external components required in a measurement system. Its 14-bit resolution supports applications such as industrial instrumentation, process control, waveform analysis, communications equipment, and data acquisition. The device operates as a complete sampling converter rather than a bare comparator or flash-conversion block, allowing the input signal to be sampled and converted through a compact signal chain. Key characteristics include 14-bit resolution, a maximum sampling rate of 128 kSPS, one single-ended analog input, and a parallel microprocessor-compatible output interface. The AD679JN also includes integrated sample-and-hold, voltage-reference, and clock circuitry. These features make it useful when accurate AC signal measurements, repeatable sampling, and compact board layouts are more important than using a high-channel-count multiplexing ADC. According to the Analog Devices AD679 product page, the AD679 provides the same pinout as the 12-bit, 200 kSPS AD678 ADC, creating a documented upgrade path for designs requiring higher resolution. The AD679 family is also available in versions compliant with MIL-STD-883; applications requiring that qualification should select the appropriate military-qualified ordering option rather than assume that every AD679 suffix provides it. Typical circuit use places the analog input through a suitable front-end network, uses the integrated reference and clock functions, and connects the parallel data bus to a microprocessor, microcontroller, FPGA, or data-acquisition system. The sampling clock, input bandwidth, acquisition timing, and bus timing must be designed together to preserve the converter's dynamic performance. The 28-pin PDIP package is also easier to prototype and inspect than a fine-pitch surface-mount package. This page combines the verified manufacturer and distributor information for the AD679JN with package, interface, lifecycle, pricing, and design guidance. It distinguishes documented facts from parameters that require confirmation from the manufacturer datasheet and highlights the practical selection trade-offs between the AD679 family ordering options.
AD679KD - 14-Bit 128 kSPS Sampling ADC | Analog Devices
The Analog Devices AD679KD is a 14-bit, 128 kSPS complete sampling analog-to-digital converter housed in a 28-pin CDIP package. It provides one analog input and integrates a sample-and-hold amplifier, microprocessor-compatible bus interface, voltage reference, and clock-generation circuitry. The verified product data identifies it as a monolithic conversion solution with specified dynamic performance for signal-processing applications. An ADC is a mixed-signal semiconductor that converts an analog voltage into a digital code. A sampling ADC adds a sample-and-hold function so the input voltage is captured for conversion rather than changing continuously during the measurement. The AD679 belongs to the ADC and DAC > ADC/DAC category within the broader mixed-signal semiconductor and data-converter hierarchy. The AD679KD's principal verified characteristics are 14-bit resolution, a 128 kSPS conversion rate, one analog input, and a 28-pin CDIP package. Its integrated sample-and-hold amplifier, reference, clock circuitry, and digital interface make it a complete converter rather than a bare sampling core. These characteristics suit deterministic acquisition systems where a compact, multichip-equivalent signal chain and direct digital data access are valuable. The manufacturer describes the AD679 with dynamic parameters including signal-to-noise-plus-distortion ratio, total harmonic distortion, and intermodulation distortion. These metrics are particularly relevant to audio and general signal-processing applications because they characterize conversion performance for AC signals rather than only the static resolution stated as 14 bits. The AD679 is also documented as sharing its pinout with the 12-bit, 200 kSPS AD678 ADC. Typical uses include industrial instrumentation, audio signal capture, communications equipment, data-acquisition systems, and embedded measurement platforms. The single-input architecture favors systems that need one high-rate conversion channel and can manage multiplexing externally. Its processor-compatible interface supports integration with digital controllers, while the integrated reference and clock circuitry reduce the number of external analog-support components. A key design consideration is that the AD679KD is a ceramic DIP package rather than a compact surface-mount option. Designers should preserve adequate board spacing, socket clearance, and mechanical support while confirming that the selected package variant satisfies temperature, vibration, and environmental requirements. Because the supplied data does not include operating-temperature limits, reference accuracy, input range, or power-supply specifications, those values must be confirmed in the Analog Devices AD679 datasheet before design release. This page combines the verified manufacturer and distributor data for the AD679KD with package guidance, application analysis, and an explicit separation between documented facts and parameters that still require datasheet confirmation. It also distinguishes a true same-package drop-in replacement from functional or pin-compatible alternatives that would require additional qualification.
AD679KN - 14-Bit 128 kSPS Sampling ADC | Analog Devices
The Analog Devices AD679KN is a 14-bit, 128 kSPS complete sampling analog-to-digital converter with an integrated sample-and-hold amplifier, microprocessor-compatible bus interface, voltage reference, and clock-generation circuitry. It is packaged in a 28-pin through-hole DIP. The converter is designed for signal-processing systems that require both static accuracy and dynamic performance, including S/N+D ratio, total harmonic distortion, and intermodulation distortion. An ADC is a data-acquisition building block that converts an analog voltage into a digital code. The AD679 belongs to the integrated-circuit hierarchy: ADC, data converter, signal-processing IC, and semiconductor. Its complete sampling architecture reduces the number of external analog components required for a basic measurement channel, while the integrated reference and clock circuitry simplify system design. Analog Devices states that the AD679 shares the same pinout as the AD678 12-bit, 200 kSPS ADC, which can assist upgrade-path planning when board space and interface requirements remain compatible. The principal verified specifications are 14-bit resolution and 128 kSPS throughput. The AD679 family is specified for AC or dynamic parameters, including signal-to-noise plus distortion, THD, and IMD, making it appropriate for waveform capture, instrumentation, communications, and industrial measurement. The verified product data identifies AD679KN as a commercial-temperature, through-hole, 28-pin DIP variant. The manufacturer also documents versions compliant with MIL-STD-883, but the provided data does not establish that the AD679KN suffix itself is that compliant version. The device combines sampling and conversion functions in one monolithic converter. This integration can simplify analog front-end design compared with a discrete sample-and-hold stage followed by a separate ADC. Designers must still establish the input range, acquisition time, reference behavior, digital interface timing, grounding, and signal-conditioning requirements from the complete manufacturer datasheet before finalizing a circuit. Typical applications include industrial process measurement, audio and waveform instrumentation, communications receivers, laboratory data acquisition, and embedded control systems. In each case, the 128 kSPS sampling rate limits the bandwidth that can be represented without aliasing, while the 14-bit code width sets the quantization resolution. Input filtering and anti-alias design are therefore central to obtaining useful dynamic performance. A key design consideration is that the ADC’s dynamic specifications must be interpreted at the operating conditions and test bandwidth specified by Analog Devices. Do not infer guaranteed SNR, THD, input range, or acquisition time from the distributor snippets; consult the official datasheet and validate the complete analog and digital interface on hardware. This page consolidates the verified AD679KN identity, manufacturer upgrade-path information, distributor listing details, and engineering-focused application guidance. It also makes clear where verified data is insufficient, so engineers can request the missing electrical limits before committing to a design.
AD7091R-2BRUZ - 12-Bit 1MSPS SAR ADC | Analog Devices
The AD7091R-2BRUZ from Analog Devices is a 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) that operates from a single 2.7V to 5.25V power supply and achieves a sampling rate of 1 MSPS. It features two single-ended analog input channels, an on-chip 2.5V reference, and a high-speed serial interface (SPI). The device is housed in a 16-lead TSSOP package, making it suitable for space-constrained applications. A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm to convert an analog input into a digital output. It is known for its high speed, low power consumption, and ease of use, making it ideal for applications such as data acquisition, industrial control, and portable instrumentation. The AD7091R-2 is part of the AD7091R family, which includes 2-, 4-, and 8-channel versions, all sharing the same core architecture and performance characteristics. Key features of the AD7091R-2BRUZ include ultralow power consumption (typically 367 µA at 3V and 1 MSPS), a wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 1.5 MHz, and an on-chip conversion clock that simplifies system design. The device also includes a channel sequencer that allows preprogrammed selection of channels to be converted sequentially, enhancing flexibility in multi-channel applications. The AD7091R-2BRUZ uses a SAR architecture with an internal reference and a high-speed serial interface that supports data read after conversion, achieving a 1 MSPS throughput rate with a 50 MHz SCLK. The device is designed for low power and high accuracy, with a typical power dissipation of less than 2 mW at 3V, making it suitable for battery-powered and portable applications. Typical applications include battery monitoring, data acquisition systems, industrial process control, and portable instrumentation. The wide input bandwidth and low power consumption make it ideal for applications requiring high-speed, low-power analog-to-digital conversion. When designing with this device, ensure that the analog input voltage does not exceed the supply voltage and that adequate decoupling capacitors are placed near the power supply pins. The SPI interface should be configured for the correct clock polarity and phase to ensure reliable data transfer.
AD7091R-4BRUZ - 4-Ch 12-Bit 1MSPS SAR ADC | Analog Devices
The AD7091R-4BRUZ is a 4-channel, 12-bit, ultralow power, successive approximation (SAR) analog-to-digital converter (ADC) from Analog Devices. It operates from a single 2.7 V to 5.25 V power supply and achieves a sampling rate of 1 MSPS. The device features an on-chip 2.5 V reference, an on-chip conversion clock, and a high-speed SPI-compatible serial interface. It is available in a 20-lead TSSOP package, making it suitable for space-constrained applications. An ADC (analog-to-digital converter) is a device that converts continuous analog signals into discrete digital numbers. The AD7091R-4BRUZ is a SAR ADC, which uses a binary search algorithm to determine the digital output. SAR ADCs are known for their high speed, low power, and ease of use, making them ideal for a wide range of applications. The AD7091R-4BRUZ is part of the AD7091R family, which includes 2-, 4-, and 8-channel versions, all sharing the same core architecture. Key features of the AD7091R-4BRUZ include ultralow power consumption: normal mode draws only 1.4 mW at 1 MSPS, and power-down mode draws 550 nA typical at VDD = 5.25 V and 435 nA at VDD = 3 V. The device also features a programmable ALERT interrupt pin (on 4- and 8-channel models) for monitoring out-of-range conditions. The on-chip 2.5 V reference eliminates the need for an external reference, simplifying design. The AD7091R-4BRUZ uses a flexible power/throughput rate management scheme, allowing the conversion rate to be adjusted to match the system's needs, thereby optimizing power consumption. The SPI interface supports data read after conversion, achieving a 1 MSPS throughput rate. The device also includes a channel sequencer that allows preprogrammed selection of channels to be converted sequentially, reducing microcontroller overhead. Typical applications include battery-powered instrumentation, portable medical devices, industrial process control, and data acquisition systems. The low power consumption and small package make it ideal for portable and battery-operated equipment. When designing with the AD7091R-4BRUZ, ensure that the analog input voltage does not exceed the supply voltage to avoid damage. Use a low-pass filter on the analog inputs to reduce noise and aliasing. The reference voltage is internally generated, but an external reference can be used if higher accuracy is required.
AD7091R-5BRUZ - 12-Bit Ultralow Power ADC | Analog Devices
The AD7091R-5BRUZ is a 12-bit, multichannel, ultralow power, successive approximation analog-to-digital converter (ADC) from Analog Devices. It operates from a single 2.7 V to 5.25 V power supply and typically consumes only 24 µA at a 3 V supply in fast mode, making it ideal for battery-powered and portable applications. The device features four single-ended analog input channels with a channel sequencer, an on-chip conversion clock, and an accurate 2.5 V internal reference. It provides a 2-wire serial interface compatible with I2C, supporting standard and fast modes up to 400 kHz. The AD7091R-5BRUZ is available in a 20-lead TSSOP package, offering a compact solution for space-constrained designs. An analog-to-digital converter (ADC) is a device that converts continuous analog signals into discrete digital numbers, enabling digital systems to process real-world signals. The AD7091R-5BRUZ is a SAR (successive approximation register) ADC, which uses a binary search algorithm to determine the digital output. SAR ADCs are known for their high speed, low power, and ease of use, making them suitable for a wide range of applications including data acquisition, industrial control, and medical instrumentation. The AD7091R-5BRUZ belongs to the family of data acquisition components, which are essential in bridging the analog and digital domains. Key features of the AD7091R-5BRUZ include its ultralow power consumption of 24 µA at 3 V, which extends battery life in portable devices. The on-chip 2.5 V reference eliminates the need for an external reference, reducing component count and board space. The I2C-compatible interface simplifies connection to microcontrollers and digital signal processors. The device also includes a programmable out-of-bounds user alert function, which can be used to monitor analog inputs and generate interrupts when values exceed preset thresholds. The channel sequencer allows automatic conversion of multiple channels without microcontroller intervention, reducing software overhead. From a technical perspective, the AD7091R-5BRUZ achieves a throughput of up to 1 MSPS with a 50 MHz SCLK, although the I2C interface limits the actual conversion rate to about 22.22 kSPS in fast mode. The device operates over a temperature range of -40°C to +125°C, making it suitable for industrial environments. The TSSOP-20 package has a thermal resistance of approximately 90°C/W, and the device is RoHS compliant. The internal reference has a typical accuracy of ±0.1% and a temperature coefficient of 10 ppm/°C, ensuring stable performance over temperature. Typical applications include portable instrumentation, battery monitoring, temperature sensing, and industrial process control. In portable medical devices, the ultralow power consumption is critical for extending battery life. In industrial settings, the wide operating temperature range and I2C interface make it easy to integrate with existing control systems. The AD7091R-5BRUZ is also suitable for data acquisition systems where multiple analog channels need to be monitored with minimal power consumption. When designing with the AD7091R-5BRUZ, it is important to ensure proper decoupling of the power supply pins with 0.1 µF and 10 µF capacitors. The reference pin should be bypassed with a 1 µF capacitor to ensure stable operation. The I2C bus requires pull-up resistors, typically 4.7 kΩ, to VDRIVE. For optimal performance, keep the analog input traces short and shielded from digital noise.