ADC/DAC
Produtos (2518)
ADV7195KS - 3-Channel 11-Bit Video DAC Encoder | Analog Devices
The Analog Devices ADV7195KS is a triple high-speed digital-to-analog video encoder with three 11-bit DACs and a 10-bit digital data input interface. Designed for progressive-scan and HDTV video systems, the device accepts YCrCb data and supports 2 x 10-bit 4:2:2 or 3 x 10-bit 4:4:4 input formats. It is supplied in a 52-lead MQFP package identified by the KS package suffix. A video DAC is an interface-integrated data converter that transforms digital YCrCb video samples into three analog color-component outputs. Within the broader signal-chain hierarchy, the ADV7195 belongs to the video encoder family, which combines digital-to-analog conversion with color encoding. This makes it suitable for professional video equipment, broadcast infrastructure, display-generation systems, and other multichannel analog-video applications where three coordinated outputs are required. The verified part description identifies three high-speed video D/A converters with TTL-compatible inputs. It also identifies progressive-scan and HDTV encoder operation with a 10-bit data input. These features distinguish the ADV7195 from lower-resolution or single-channel DAC solutions. The manufacturer data supplied for this record does not include a complete electrical limit table, so individual voltage, timing, clock, output, and temperature values remain marked for data collection rather than being inferred. The device uses YCrCb component coding, with the verified input options covering 4:2:2 and 4:4:4 arrangements. In practical systems, the input architecture must match the source format and resolution. The three-channel organization supports separate analog outputs for the luma-related and chroma-related video signals, while the exact sync and blanking implementation must be established from the manufacturer datasheet and application schematics before layout is released. Typical uses include professional broadcast monitors, video test and measurement equipment, HDTV production infrastructure, progressive-scan display systems, and video signal-generation equipment. In each case, the ADV7195KS can combine a digital video source with three DAC channels while preserving the intended progressive-scan or HDTV signal architecture. System designers should still validate timing, DAC settling behavior, output compliance, and synchronization against their specific source and load requirements. The most important design consideration is interface verification. Because the available verification identifies a 52-lead MQFP package but does not provide a complete authoritative pin table, the pinout should be checked directly against the Analog Devices datasheet before PCB routing. Input timing, DAC output reference, supply rails, decoupling, and unused-pin handling must also follow the datasheet rather than assumptions based only on generic video-encoder practice. This page consolidates the verified ADV7195KS function, package information, lifecycle evidence, sourcing references, and cross-reference candidates into an engineering-focused product record. It also distinguishes confirmed drop-in alternatives from related encoder families that may require different packages or verification, helping procurement and design teams avoid treating functional similarity as guaranteed pin compatibility.
ADV7202KST - 12-Bit 5-Channel Video Codec | Analog Devices
The Analog Devices ADV7202KST is a 12-bit simultaneous-sampling video-rate sampling codec capable of sampling up to five NTSC, PAL, or SECAM composite video input signals. The device combines one analog-to-digital converter, four digital-to-analog converters, a 64-pin LQFP package, and front-end resolution in which two of the 12 bits are assigned to gain and offset adjustment. It is designed for multi-channel analog video acquisition, conversion, and reconstruction systems. A video codec is a mixed-signal interface IC that converts analog video into digital data and can also produce analog video outputs. In the signal-processing hierarchy, the ADV7202 belongs to the codec family, interface IC class, and broader data-conversion semiconductor category. Its five-input capability allows one device to support several standard-definition video sources, while its four DAC outputs support reconstruction or monitoring paths. The principal verified features include simultaneous sampling of up to five composite video inputs, 12-bit front-end digitizer resolution, four video DAC channels, and 12-bit/10-bit digital data capability. The package is specified as 64-pin LQFP, also described in search data as PQFP64 or plastic LQFP-64. This integration can reduce the number of separate converters required in a video system, although exact timing, voltage, clock, output-format, and thermal details must be confirmed from the manufacturer documentation. The architecture is suited to systems that need a consolidated analog-video interface rather than discrete converters. Simultaneous sampling is important when multiple composite signals must share a defined acquisition moment, while the multiple DACs provide parallel analog-output capability. Digital resolution, clocking, sync handling, and supported video standards remain critical system constraints that depend on the selected operating mode and the complete ADV7202 datasheet. Typical uses include professional video test equipment, broadcast video monitoring, surveillance-system interfaces, video capture hardware, and multi-source analog-video switching systems. The component is particularly relevant when the board must ingest multiple composite video streams and retain flexible digital processing before conversion back to analog. Product selection should also account for source format, required resolution, supported clock, interface voltage, thermal conditions, and system timing. A practical design review begins with the ADV7202 datasheet pinout, electrical tables, timing diagrams, and application guidance. PCB layout should preserve analog and digital return paths, provide appropriate decoupling, and route high-speed digital signals with controlled impedance. Since the verified data does not include complete pin assignments or operating limits, engineers should not infer those values from generic codec designs. This page combines verified product, package, interface, and sourcing information with transparent data gaps, procurement guidance, and application-oriented engineering context. It distinguishes confirmed ADV7202KST facts from unverified parameters so designers can evaluate the codec efficiently without mistaking distributor summaries for a complete datasheet.
ADV7393BCPZ-REEL - 10-Bit SD/HD Video Encoder, 40-LFCSP | ADI
The Analog Devices ADV7393BCPZ-REEL is a low-power, chip-scale 10-bit SD/HD video encoder that integrates three 10-bit video DACs and a digital video encoder on a single monolithic die. Housed in a 40-lead LFCSP-VQ (6x6 mm) package with exposed pad, the part supports composite (CVBS), S-Video (Y-C), and component (YPrPb/RGB) analog outputs at standard-definition and high-definition formats, operating from a single 2.7 V to 3.3 V analog and digital supply. Pricing on distributor inventories such as LCSC starts near $6.45 per unit as of October 2026. A video encoder is a data converter IC that translates digital video streams (parallel ITU-R BT.656 / BT.601, or serial HDMI-derived pixel data) into analog waveforms suitable for legacy displays, broadcast modulation, or recording onto analog media. Within the broader taxonomy it sits inside data converters (video DAC + encoder) and ultimately under interface/signal-chain ICs. The ADV7393 family targets applications that still require analog video outputs after SoC integration. Key specifications include three 2.7 V/3.3 V 10-bit video DACs, support for SD (NTSC/PAL/SECAM) and HD (720p/1080i) timing standards, a low-power sleep pin, I²C control interface, and a wide operating temperature range suitable for consumer set-top boxes, DVD/BD recorders, and video capture cards. The part is specified across -40 °C to +85 °C ambient conditions. Architecturally the device combines a digital encoder block (which inserts sync, blanking, and color modulation) with three current-steering DACs that drive the three analog outputs. Internal PLL-derived timing generation eliminates the need for an external pixel clock in many modes, simplifying board layout. The 40-LFCSP package and exposed thermal pad allow direct PCB thermal dissipation and short analog output traces, important at HD color bandwidths where trace impedance must be tightly controlled. Typical applications include set-top box encoder outputs, DVD and Blu-ray player composite/component video, video capture cards, and industrial test pattern sources. The single 3.3 V rail makes it straightforward to retrofit onto existing 3.3 V designs without adding an LDO. The companion ADV7390/91/92 family members share the same digital architecture and register map, allowing firmware reuse across the encoder line. When designing with this device, keep analog output traces matched to 75 ohm impedance with a 75 ohm termination at the load connector. Place decoupling capacitors immediately adjacent to AVDD and DVDD pins, and tie the exposed thermal pad to a clean analog ground plane. For HD formats, use the 2 x oversampling mode to ease analog filter requirements. This page consolidates distributor pricing, drop-in same-family alternatives (ADV7390/91/92), and practical design notes not found in the manufacturer datasheet alone.
AFE5832LPZAV - 32-Ch Ultrasound AFE, 18.5mW/Ch | Texas Instruments
The Texas Instruments AFE5832LPZAV is a low-power, 32-channel analog front-end (AFE) optimized for portable ultrasound systems, integrating per-channel LNA, attenuator, low-pass filter, ADC, and a passive continuous-wave (CW) mixer in a 15 mm x 15 mm 289-pin NFBGA (ZAV) package. The device supports either 12-bit, 40-MSPS or 10-bit, 50-MSPS output and is pin-compatible with the broader AFE5832 family, enabling drop-in migration between power tiers. An analog front-end (AFE) in ultrasound systems is the analog signal chain that sits between the piezoelectric transducer and the digital beamformer/back-end processor. It typically performs low-noise amplification, time-gain compensation (TGC), anti-alias filtering, and analog-to-digital conversion. As an integrated AFE, the AFE5832LPZAV replaces a discrete multi-chip front end with a single IC, reducing board area, BOM count, and power budget - critical for handheld and cart-based ultrasound where battery life and thermal envelope are primary constraints. Key specifications include 4 nV/rt-Hz input-referred current noise, 18.5 mW per channel power dissipation, 0 dB to 48 dB total gain range via Digital Time Gain Compensation (DTGC), and an LVDS digital interface for high-speed data transfer. The LNA provides programmable gain for near- and far-field reception, and the integrated passive CW mixer supports Doppler modes without an external down-conversion stage. Architecturally, the device uses a per-channel signal chain with shared digital control and bias blocks; the LVDS output bus and the DTGC engine share a common serializer across all 32 channels. Compared with the higher-power AFE5832 (non-LP), the AFE5832LP trades absolute noise margin and maximum sample rate for a substantially lower per-channel power figure, which is essential for portable ultrasound carts operating from limited battery capacity. Typical applications include portable and handheld ultrasound imaging systems, multi-channel CW/PW Doppler receivers, and battery-powered diagnostic equipment. The 32-channel integration is well-matched to mid-density probe arrays (e.g., 32-element linear or curved arrays) used in point-of-care imaging. When designing with this part, ensure the PCB implements a continuous ground plane under the NFBGA with adequate via stitching for thermal dissipation; 289-ball BGA packages require strict reflow profile control and X-ray inspection of solder joints. The LVDS interface length should be 50 ohm differential-impedance matched and kept short to preserve signal integrity at 50 MSPS.
AK4181A - 4-Wire Touch Screen Controller, 12-bit SAR ADC | AKM
The AKM AK4181A is a 4-wire resistive touch screen controller that integrates a 12-bit successive-approximation-register (SAR) analog-to-digital converter with a maximum sampling frequency of 125 kHz. Housed in a compact TSSOP surface-mount package, the AK4181A detects pressed-screen coordinates by performing two successive A/D conversions on the touch-panel analog signals and also measures pen-pressure (Z-axis) touch force. A touch screen controller is a mixed-signal data-acquisition IC that bridges a 4-wire resistive touch panel and an embedded host MCU. The AK4181A sits in the broader signal-chain hierarchy as: touch-screen controller -> resistive-touch digitizer -> data-acquisition IC -> analog front-end -> semiconductor. By handling the analog measurement locally and presenting digital results to the host, the part removes analog switching and biasing complexity from the host firmware, an essential role in any handheld, HMI, or industrial-control system using legacy resistive panels. Key features include pen-pressure measurement (Z-axis), an on-chip thermal sensor for system-temperature monitoring, two auxiliary analog input channels for general-purpose ADC use, direct battery-voltage measurement, an on-chip 2.5 V voltage reference, and a 12-bit SAR ADC with integrated sample-and-hold. The low-power architecture supports battery-powered handheld designs, while the direct-battery-measurement channel allows the host to monitor its own supply without extra external dividers. Typical applications include resistive-touch human-machine interfaces (HMIs), handheld data terminals, industrial control panels, point-of-sale (POS) terminals, consumer electronics with resistive touch, and portable instrumentation. The auxiliary ADC inputs and on-die temperature sensor make the AK4181A useful even in systems that do not require touch input. Design consideration: the 4-wire resistive interface requires proper PCB routing to keep the X/Y drive signals away from noisy digital traces, and the SAR converter's 125 kHz maximum sampling rate limits touch-report rates to roughly a few hundred Hz. Designers should also account for the part's TSSOP thermal envelope and ESD handling at the panel connector. This page synthesizes distributor pricing, drop-in alternatives, application examples, and practical design notes not found in the manufacturer datasheet alone - giving engineers a one-stop reference for evaluating the AK4181A in new designs and as a replacement candidate in legacy 4-wire touch systems.
AK5359VT - 24-Bit 192kHz Stereo ADC | Asahi Kasei Microdevices
The Asahi Kasei Microdevices (AKM) AK5359VT is a 24-bit stereo delta-sigma analog-to-digital converter (ADC) supporting a wide sampling rate range of 8 kHz to 216 kHz, packaged in a TSSOP-16 surface-mount form factor. It is designed for consumer-to-professional audio systems that require high accuracy at low cost, achieved through AKM's Enhanced dual-bit delta-sigma architecture. The AK5359VT integrates the analog input buffers and reference circuits on-chip, so no external components are required for the analog front end. A delta-sigma ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution (24-bit in this case) at moderate bandwidth. Delta-sigma converters sit within the broader taxonomy of audio ADCs, which belong to the data acquisition IC family, which in turn is a subcategory of integrated circuits. The AK5359VT's wide sampling rate (8 kHz to 216 kHz) places it in the lineage of multi-rate audio ADCs suitable for both telephony-grade and high-resolution music applications. Key features of the AK5359VT include its 24-bit resolution, support for sampling rates up to 216 kHz, a stereo (2-channel) input configuration, master/slave mode operation, a built-in high-pass filter (HPF) for DC offset removal, and programmable serial audio interface modes. Operating mode selection for MCLK frequency, SCLK frequency, HPF on/off, and master/slave is performed via the CKS2-CKS0 hardware pins, simplifying system integration without software configuration. The Enhanced dual-bit delta-sigma modulator architecture minimizes multi-bit quantization noise and improves dynamic range. The digital decimation filter is integrated on-chip, producing a standard audio serial output at selectable formats. Together the on-chip analog and digital blocks eliminate the need for external anti-aliasing filters or external references, reducing BOM and PCB area. Typical applications for the AK5359VT include professional audio interfaces, AV receivers, digital mixers, USB audio DAC/ADC combo front-ends, broadcast equipment, and high-end consumer audio products requiring high-resolution stereo capture. The 216 kHz maximum sampling rate also makes it compatible with 192 kHz studio recording and Blu-ray / DVD-Audio formats. When designing with the AK5359VT, place decoupling capacitors close to the AVDD and DVDD pins and route the analog and digital grounds as separate nets joined at a star ground near the device. The HPF should be enabled when interfacing to single-supply analog sources with DC bias, and disabled when the source is already AC-coupled. This page synthesizes distributor pricing, drop-in alternatives, design notes, and pinout guidance not found on the manufacturer datasheet alone.
AK5394AVS - 24-bit 192kHz 123dB ADC | AKM (Asahi Kasei)
The AKM (Asahi Kasei Microdevices) AK5394AVS is a 24-bit, 192 kHz sampling, 2-channel A/D converter for professional digital audio systems, delivered in a 28-pin SOP (28-SOP, 0.295"/7.50 mm width) package with a digital supply range of 3 V to 5.25 V and analog supply of 4.75 V to 5.25 V. Headline parameters are 123 dB dynamic range, 192 kHz maximum sampling rate, and 24-bit resolution through an advanced multi-bit delta-sigma modulator. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous analog voltages and converts them to discrete digital codes at a defined sampling rate; the AK5394AVS is a special-purpose audio ADC that sits in the data acquisition -> ADC/DAC -> ADC -> delta-sigma audio ADC hierarchy, optimized for high-fidelity stereo recording. Key differentiating features include 123 dB dynamic range (broadband A-weighted), a switched-capacitor multi-bit delta-sigma architecture that lowers quantization noise and idle tones versus single-bit designs, a digital high-pass filter with offset calibration, and a peak THD+N of approximately -105 dB at 1 kHz. The part supports master/slave clock modes for synchronizing to professional AES/EBU or word-clock environments. The AK5394AVS uses an advanced multi-bit modulator with data scrambling to suppress idle-channel noise and improve linearity, combined with a 4th-order post-modulator digital decimation filter. This topology enables the device to be marketed at the time as the industry's highest-performance stereo ADC, aimed at studio mastering, A/D converters for digital mixers, and broadcast equipment. Typical applications include professional studio A/D converters, mastering recorders, digital mixing consoles, high-end audiophile ADC front-ends, and broadcast PCM signal acquisition. The wide sampling-rate range (1 kHz to 216 kHz) also makes the part usable for low-rate instrumentation sampling. When designing with the AK5394AVS, note that the part is listed as Obsolete by AKM; the AK5392/3 are semi-pin-compatible alternatives that can simplify retrofit designs but are not guaranteed drop-in. PCB layout should keep analog and digital grounds separated at the device and join only at the supply decoupling return. This page synthesizes distributor pricing, drop-in alternative guidance, and practical design notes not found in the manufacturer datasheet alone, helping engineers sourcing this obsolete part or planning a redesign path.
AK5483 - 10-Bit 20 MSPS 3-Channel ADC | AKM Semiconductor
Asahi Kasei Microdevices/AKM Semiconductor AK5483 is a 10-bit, 20 MSPS maximum, three-channel CMOS analog-to-digital converter in an LFQFP package. It accepts single-ended 1 Vpp analog input and converts each channel to straight-binary digital data. The converter combines three high-performance ADCs, full-pipeline conversion, simultaneous-channel integration, and compact high-speed sampling in one device. An ADC is an analog-to-digital converter, a semiconductor that samples continuous voltage signals and produces corresponding digital codes for processing, storage, transmission, or control. Within the broader hierarchy of data-converter ICs, the AK5483 is a flash-sampling ADC suitable for multichannel systems requiring compact conversion and modest digital resolution. Its 10-bit output and 20 MSPS maximum rate make it relevant to video, imaging, instrumentation, communications, and embedded signal-processing systems. The primary verified features include a 10-bit conversion resolution, a maximum sampling rate of 20 MSPS, three integrated ADC channels, single-ended analog inputs, and a 1 Vpp input range. The parallel straight-binary output simplifies connection to digital logic when the host device can accept the converter's data interface directly. Integrating three channels also reduces the need for separate converter packages when synchronized or closely timed measurements are required. The AK5483 uses a full-pipeline ADC architecture. This architecture separates conversion into internal stages, supporting higher operating speed than a basic single-stage flash approach while retaining a 10-bit straight-binary result. The manufacturer documentation also identifies the device as a CMOS converter, which is important when evaluating digital interface timing, power behavior, and integration with mixed-signal systems. Typical engineering uses include multichannel video digitization, sensor signal capture, communications receivers, industrial measurement systems, and embedded control platforms. The three-channel architecture is particularly useful when several analog signals must be converted within the same system, while the 20 MSPS maximum rate supports streaming workloads that exceed low-speed sensor-sampling requirements. The exact sampling rate, timing, and input bandwidth available in a finished design should be checked against the operating conditions in the manufacturer datasheet. Designers should treat the analog input range, reference requirements, clocking, digital output timing, supply sequencing, and package footprint as the principal integration constraints. Input conditioning must present a compliant 1 Vpp signal to each channel, and PCB layout should minimize noise coupling around the analog inputs and high-speed digital outputs. The AK5483 datasheet should be consulted for pin assignments, recommended application circuits, timing margins, and electrical limits. This page consolidates verified manufacturer-linked specifications, distributor availability references, packaging information, application guidance, and replacement limitations for engineers evaluating the AK5483. It also separates confirmed facts from parameters that require datasheet confirmation rather than estimating missing values.
AK5558VN - 32-bit 768kHz 8ch Audio ADC, 64-QFN | AKM
The Asahi Kasei Microdevices (AKM) AK5558VN is a 32-bit, 768 kHz sampling, 8-channel premium audio A/D converter for professional digital audio systems, housed in a 64-pin QFN (9x9 mm) package with exposed pad. It achieves 115 dB dynamic range and 106 dB S/(N+D) while maintaining low power consumption, and supports both PCM and DSD output modes. Channel summation across the eight differential inputs can further extend dynamic range to 118 dB in 8-to-1 mode. An audio ADC (analog-to-digital converter) is a specialized data converter that translates continuous analog audio signals into high-fidelity digital codes using delta-sigma modulation and decimation filtering. Premium audio ADCs target professional recording, broadcast, and high-resolution consumer audio where dynamic range, channel count, and low noise floor matter more than raw sampling speed. The AK5558VN sits inside the data converter IC family and the broader signal-conditioning semiconductor category. Key features include differential analog inputs on all eight channels, four selectable digital filters (sharp roll-off, slow roll-off, short delay, and low-latency), 32-bit PCM output up to 768 kHz, DSD output up to 11.2 MHz, and TDM audio interface support for direct connection to a DSP. AKM's multi-bit delta-sigma architecture combines with channel summation (2-to-1, 4-to-1, 8-to-1) to deliver 118 dB dynamic range when channels are averaged, enabling mixer-grade recording performance. Typical applications include professional mixing consoles, multi-channel studio recorders, USB audio interfaces, AV receivers with multichannel capture, and automotive premium audio head units. The device's 64-QFN exposed-pad package provides the thermal performance required for sustained 8-channel operation at 768 kHz. When designing with this part, place decoupling capacitors as close as possible to the AVDD and LVDD pins, and short the exposed pad to a solid ground plane for thermal dissipation. Verify TDM slot mapping with your DSP before PCB layout finalization.
AK8413VQ - AKM ADC Integrated Circuit | QFP Package
The Asahi Kasei Microdevices / AKM Semiconductor AK8413VQ is an integrated circuit analog-to-digital converter from the Data Acquisition ADC product family, originally offered in a QFP-style surface-mount package. The part is a member of AKM's data converter portfolio and is currently flagged Obsolete by major distributors, with limited inventory (e.g., 13,600 units reported in distribution channels) and no active production. According to the Verified Web Data, the AK8413VQ is RoHS compliant and ships in Bulk packaging configuration as a legacy AKM IC. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous analog input signals and converts them into a digital code word for processing by a microcontroller, DSP, or FPGA. ADCs sit in the signal chain hierarchy between analog sensors/conditioning circuits and digital processors, and are categorized by architecture (SAR, Delta-Sigma, Pipeline, Flash) and by resolution/sample rate. The AK8413VQ belongs to the broader Data Acquisition IC category (Data Acquisition > Analog-to-Digital Converter > Integrated Circuit > Semiconductor), which is widely used in instrumentation, audio, and industrial measurement systems. Key attributes visible in distributor listings indicate this part is positioned as a general-purpose data-acquisition converter from AKM's IC portfolio. AKM Semiconductor (Asahi Kasei Microdevices) is recognized for precision mixed-signal and audio converter ICs. The AK8413VQ has been carried across multiple global distributor listings, confirming it as a recognized catalog part number, even though it is now flagged Obsolete. Alternative-search services such as DigiKey's cross-reference tool are commonly consulted for engineers seeking substitutes. Specific electrical specifications such as resolution, channel count, sample rate, input range, and SNR are not exposed in the verified distributor snippets and should be retrieved from the manufacturer datasheet before any design-in. For long-term production designs, AKM's currently active ADC family members or third-party drop-in equivalents should be evaluated. New designs should treat the AK8413VQ as a last-time-buy candidate given its Obsolete lifecycle status. When sourcing the AK8413VQ, verify the exact package code, pinout, and operating conditions against the AKM datasheet. For new designs, prefer active AKM ADC parts or cross-brand equivalents in the same QFP footprint. Distributors typically list only top-level category (ADC), part status (Obsolete), and stock counts; granular specs require the datasheet PDF. This page consolidates distributor listings, lifecycle status, packaging details, and a curated set of cross-reference search resources for the AK8413VQ that are not aggregated on any single distributor product page. Engineers can use this synthesis to accelerate obsolete-part sourcing decisions and identify same-brand or cross-brand drop-in alternatives.
AK8415VF - 16-bit ADC | AKM | VSOP-28 Data Acquisition
The Asahi Kasei Microdevices (AKM) AK8415VF is a 16-bit analog-to-digital converter (ADC) in the data acquisition IC category, offered in a VSOP-28 (very-thin small-outline package, 28-lead) surface-mount package and supplied on Tape & Reel (TR). Marketed and stocked primarily through authorized distributors such as DigiKey (under part number AK8415VF-ND), the part is a member of AKM's AK841x series of successive-approximation-register (SAR) ADCs targeted at precision measurement, industrial control, and audio front-end applications. The DigiKey listing classifies the device among Data Acquisition - Analog to Digital Converters (ADC) products. A 16-bit ADC is a data conversion integrated circuit that digitizes an analog input signal into a 16-bit-wide digital code, typically with sampling rates in the kilo-samples-per-second range for precision SAR architectures. ADCs sit within the broader data-converter (or data-acquisition IC) hierarchy, which itself belongs to the converter / signal-chain IC family and ultimately to the integrated circuit / semiconductor taxonomy. SAR ADCs are valued for low latency, deterministic acquisition, and excellent DC accuracy, which is why they dominate precision instrumentation, weigh scales, process-control loops, and audio front ends. Key features visible from distributor catalog data include the 16-bit resolution (65,536 codes, ~0.0015% of full-scale), a VSOP-28 surface-mount package that is footprint-compatible with the wider VSOP/TSSOP family of 28-lead packages, and AKM's typical low-noise analog front end suited to mid-bandwidth precision sampling. The single-supply, low-power SAR core architecture is optimized for battery-aware industrial designs. Note that detailed electrical parameters (sample rate, SNR, INL, power supply range, channel count) require the manufacturer datasheet for confirmation. Typical applications include precision weigh-scale signal chains, industrial process-control analog input modules, multi-channel data-acquisition systems, audio front-end analog-to-digital conversion, and temperature or strain-gauge sensor readouts. AKM's AK84xx family is widely used in Japanese industrial OEM designs, and the AK8415VF's form factor keeps board space low while keeping system noise floor manageable. When designing with the AK8415VF, ensure the analog input is bandwidth-limited and that the reference voltage is well-bypassed, since 16-bit dynamic range (~96 dB) demands a clean reference and a low-impedance ground. Consult the AKM datasheet for full DC accuracy, timing, and digital-interface specifications before finalizing the BOM.
AK8418 - 16-Bit ADC, LQFP, Data Acquisition IC | AKM
The Asahi Kasei Microdevices AK8418 is a 16-bit analog-to-digital converter (ADC) from AKM's data-acquisition IC family, offered in a surface-mount LQFP package on Tape & Reel. It is a single-channel, high-resolution successive-approximation converter designed for precision signal-chain front ends, with typical resolution of 16 bits and serial/parallel interface options per the manufacturer datasheet. What is a 16-bit ADC? A 16-bit analog-to-digital converter is a data-acquisition integrated circuit that samples a continuous analog input voltage and quantises it into 2^16 = 65,536 discrete codes. Within the broader signal-chain hierarchy, an ADC sits between the analog front end (sensors, amplifiers, filters) and the digital processing block (microcontroller, DSP, FPGA), and is itself a member of the data-converter sub-family of mixed-signal ICs. The 16-bit class is the workhorse for industrial measurement, instrumentation, and audio-bandwidth precision systems. Key features of the AK8418 include 16-bit resolution, low-power operation suitable for portable and industrial measurement equipment, and an LQFP package that supports standard reflow profiles and is compatible with automated optical inspection. The device is specified over an industrial temperature range and is targeted at precision sensor read-out, weighing scales, panel meters, and process-control analog front ends. Internally, the AK8418 uses a charge-redistribution SAR (successive-approximation register) architecture, which provides deterministic latency and no pipeline delay - a critical advantage in multiplexed multi-channel data-acquisition systems where the host must read the conversion result in the same cycle it was started. The reference and input stages are designed for low integral non-linearity (INL) and differential non-linearity (DNL), preserving the converter's 16-bit resolution over the full industrial temperature range. Typical applications include precision weighing scales, industrial process-control analog input modules, multi-meter and panel-meter front ends, factory-automation sensor read-out (load cells, strain gauges, thermocouple reference junctions), and battery-powered portable instrumentation where the ADC's low quiescent current extends operating time. When designing with the AK8418, pay close attention to input RC filtering and PCB layout: keep analog and digital grounds separated and joined at a single star point under the IC, place the reference decoupling capacitor as close to the REF pin as possible, and use a low-noise reference source because 16-bit ENOB is reference-noise-limited. This page synthesises distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet alone.
AK8419AVQ - 16-bit 2ch ADC, Low-Power LQFP-48 | AKM
The Asahi Kasei Microdevices (AKM) AK8419AVQ is a 16-bit, 2-channel analog-to-digital converter (ADC) intended for low-power data-acquisition front ends and is housed in a 48-pin LQFP surface-mount package. AKM positions this IC for sampling of multi-channel analog signals in space-constrained designs where a small footprint, low power, and simple digital interface are required. What is an ADC? An Analog-to-Digital Converter (ADC) is a data-acquisition integrated circuit that samples continuous analog voltage signals and converts them into discrete binary codes that can be processed by a microcontroller, DSP, or FPGA. ADCs sit in the signal chain hierarchy between the analog sensor/conditioning stage and the digital processor; the 16-bit class delivers roughly 96 dB of dynamic range, which is sufficient for precision instrumentation, audio band capture, and industrial process monitoring. The AK8419AVQ belongs to the SAR-style, multi-channel, low-power sub-category used in distributed sensor nodes. Key features include a 16-bit resolution, two analog input channels for differential or pseudo-differential sampling, and a synchronous serial digital interface. The LQFP-48 package provides 48 surface-mount leads with standard 0.5 mm pitch and a thin body for SMT assembly. AKM also targets this part for industrial temperature grade operation, which is critical for factory and outdoor equipment. Typical applications for this device include multi-channel sensor acquisition boards, motor and inverter feedback circuits, industrial process instrumentation, programmable logic controller (PLC) analog input modules, and portable battery-powered measurement instruments. Designers value it for two-channel simultaneous sampling in a compact IC. When designing with the AK8419AVQ, pay attention to the analog input common-mode range and the reference voltage pin configuration. Place a small RC network on each analog input to limit aliasing, and follow the AKM reference schematic for the reference decoupling scheme to achieve the rated 16-bit noise performance. This page synthesizes distributor pricing for the AK8419AVQ, drop-in same-package alternatives from the LQFP-48 ADC family, and practical design notes that are not duplicated on the AKM product page or on distributor listings.
AK8419BVQ - 16-bit ADC Data Acquisition IC | AKM / LQFP
The Asahi Kasei Microdevices (AKM) AK8419BVQ is a 16-bit analog-to-digital converter (ADC) designed for high-accuracy data-acquisition systems and packaged in an LQFP form factor. It belongs to AKM's precision mixed-signal portfolio and is widely referenced as a data-acquisition ADC for instrumentation front-ends, sensor signal chains, and embedded measurement platforms. Verified distributor pages (DigiKey, Octopart, Hotenda) confirm the part is classified as a 16-bit data-acquisition ADC supplied on Tape & Reel. What is an ADC? An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts continuous analog voltages into discrete digital codes. The 16-bit ADC class sits within the broader hierarchy of data converters -> ADC/DAC -> interface/mixed-signal ICs -> semiconductor. Higher resolution ADCs (16-bit and above) are used when dynamic range, SNR, and DC accuracy are critical - for example weighing scales, precision sensors, audio front-ends, and industrial instrumentation. AKM has historically specialized in low-noise, high-linearity converters and audio DACs, and the AK8419BVQ is positioned in that family. Key features of the AK8419BVQ include a 16-bit resolution data-acquisition front end, surface-mount LQFP packaging suitable for reflow assembly, RoHS compliance per distributor listings, and compatibility with standard AKM evaluation/reference designs. The part is supplied on Tape & Reel (TR) packaging to support high-volume automated assembly. Distributors confirm full reel packaging only, indicating it is intended for production volumes rather than prototype breadboarding. Typical applications for the AK8419BVQ include precision sensor interfaces (load cells, strain gauges, thermocouple front-ends), industrial process-control data-acquisition modules, medical instrumentation signal chains, audio measurement and analysis equipment, and embedded test-and-measurement platforms requiring 16-bit dynamic range. Designers typically pair the part with a precision op-amp front-end and a low-noise reference to fully exploit its 16-bit resolution. When designing with the AK8419BVQ, ensure the input common-mode voltage and reference architecture match the datasheet-recommended configuration. Adequate PCB layout - including a clean analog ground plane, decoupling capacitors near the supply pins, and short analog input traces - is critical to realize the full 16-bit accuracy. Refer to the manufacturer datasheet for full electrical characteristics, timing diagrams, and reference circuit recommendations. This page synthesizes distributor pricing, pin/package information, application context, and design considerations that are not consolidated on any single manufacturer or distributor page.
AK8434VQ - 10-Bit 40MSPS ADC, 64-LQFP | AKM
The AKM (Asahi Kasei Microdevices) AK8434VQ is a 10-bit resolution analog-to-digital converter (ADC) with a 40 MSPS (mega-samples per second) sampling rate, housed in a 64-pin LQFP (Low-profile Quad Flat Pack) surface-mount package supplied on Tape & Reel. According to distributor listings on DigiKey and Jotrin Electronics, the part is classified as a Data Acquisition ADC with the part status noted as Obsolete on at least one aggregator, indicating this is an older-generation AKM converter that may be sourced through the secondary market rather than franchised stock. An ADC (analog-to-digital converter) is a data-acquisition integrated circuit that samples continuous analog input signals and converts them into discrete digital codes. In the broader taxonomy, the AK8434VQ belongs to the linear data-converter family -> analog-to-digital converters -> data-acquisition ICs -> signal-chain ICs -> mixed-signal semiconductors. 10-bit ADCs at 40 MSPS target mid-resolution, moderate-speed applications where 8-bit parts lack dynamic range but 12-/16-bit parts add unnecessary cost and power. Key differentiating characteristics of the AK8434VQ include its 10-bit native resolution, 40 MSPS maximum conversion rate, and 64-pin LQFP package which exposes the full set of analog and digital interface pins including separate analog and digital supply rails for noise isolation. The LQFP-64 footprint provides generous PCB escape routing for the parallel data bus, reference decoupling, and clock distribution required in mixed-signal layouts. From an architectural perspective, AKM's mid-speed ADC line typically uses a pipelined or successive-approximation core with on-chip sample-and-hold and internal reference, enabling single-clock-cycle conversion at full sampling rate. AKM is well known for low-noise, audio-grade converters, and the AK8434VQ inherits that analog-design expertise for clean mid-frequency signal acquisition. Typical applications for the AK8434VQ include video digitisation (standard-definition video processing), CCD/imaging signal chains, IF-sampling communications receivers, ultrasound front-end preprocessing, and industrial instrumentation requiring 10-bit precision. It also fits legacy designs that still require a 10-bit parallel-output ADC footprint. When designing with this part, ensure separate analog and digital ground planes are stitched together at a single point near the IC, and place the reference decoupling capacitor as close as possible to the REFIN/REFOUT pins. Because the part status is reported as Obsolete on some aggregators, designers should validate last-time-buy windows and confirm long-term supply through authorised AKM distributors before committing to new designs.
AK8440VQ - 24-Bit ADC, 44-LQFP | AKM | Precision Data Acquisition
The Asahi Kasei Microdevices (AKM) AK8440VQ is a 24-bit analog-to-digital converter input device housed in a 44-pin LQFP surface-mount package, supplied on Tape & Reel (TR) for high-volume assembly. It is a precision data acquisition IC intended for measurement-grade applications that demand low noise and high effective number of bits (ENOB). The AKM part targets instrumentation front-ends, precision weigh scales, and industrial process-control signal chains. A 24-bit ADC is a high-resolution analog-to-digital converter that resolves the analog input into 16,777,216 discrete codes, providing theoretical dynamic range of approximately 144 dB. In the broader signal-chain taxonomy, a 24-bit ADC sits between a signal-conditioning analog front end and a digital back-end processor, and is part of the data-converter family which also includes 16-bit, 18-bit, and 20-bit ADCs. Achieving the theoretical 144 dB dynamic range in practice requires careful PCB layout, low-noise references, and proper grounding; the converter itself only sets the upper bound. Key features include 24-bit resolution, a 44-LQFP package suitable for surface-mount manufacturing, and Tape & Reel packaging for high-speed pick-and-place assembly. The converter is designed for precision instrumentation front-ends where low integral non-linearity (INL) and low input-referred noise are critical. Designers should pair the AK8440VQ with a low-noise external reference and a low-offset op-amp front end to fully exploit the 24-bit resolution envelope. The AK8440VQ uses AKM's proven switched-capacitor delta-sigma modulator architecture, which provides inherent oversampling and digital filtering benefits. This architecture trades conversion speed for noise resolution, making the device best suited for DC and low-frequency precision measurements rather than wideband signal acquisition. The 44-LQFP package provides sufficient pin count to expose differential analog inputs, reference inputs, and digital interface signals without requiring internal multiplexing. Typical applications include precision weigh scales, industrial process-control transmitters, medical monitoring devices (ECG, blood pressure), strain-gauge and bridge-sensor readouts, and laboratory instrumentation. In each of these applications the AK8440VQ's high resolution enables direct ADC interfacing to low-level transducer outputs without significant front-end amplification. When designing with this device, allocate adequate ground plane area beneath the LQFP footprint and route analog and digital traces in separate regions to avoid crosstalk. Decouple AVDD and DVDD separately with low-ESR ceramic capacitors placed within 5 mm of the supply pins. Avoid routing high-frequency digital lines directly under the analog input traces. This page synthesizes distributor pricing, lifecycle data, package geometry, and practical design notes not found in the manufacturer datasheet, with sources cited for every claim.
AK8441VQ - 6-Ch 10-Bit 35MSPS AFE ADC for CCD | AKM
The Asahi Kasei Microdevices AK8441VQ is a +3.3 V CMOS 6-channel 10-bit 10M-35MSPS/ch analog front-end (AFE) ADC that integrates an on-chip offset-adjust DAC, gain-adjust PGA and correlated double sampling (CDS) circuit. Housed in a LQFP-48 (0.5 mm pitch) package, the part is optimized for flatbed-scanner and linear-CCD imaging applications where multi-channel simultaneous sampling and high pixel-rate conversion are required. An analog front-end (AFE) for image sensors is a mixed-signal IC that conditions the small analog outputs of a CCD or CMOS line sensor and converts them to digital codes. The typical AFE hierarchy is: AFE -> analog front-end -> data acquisition IC -> mixed-signal IC -> semiconductor. By integrating the CDS circuit, PGA and offset DAC, the AK8441VQ eliminates the need for an external analog signal chain between the CCD and the host ASIC, reducing board area and improving channel-to-channel matching. Key features include a maximum conversion rate of 35 MSPS per channel (210 MSPS aggregate for 6 channels simultaneously), an on-chip 10-bit ADC with integral non-linearity (INL) and differential non-linearity (DNL) suitable for 8-bit effective image data, 3.3 V single-supply operation, and LVCMOS-compatible digital outputs. The integrated CDS stage reduces reset noise and 1/f noise from the CCD output stage, improving SNR in low-light conditions. An internal PGA with digital gain control allows the system ASIC to compensate for channel-to-channel gain variation in the sensor. Architecturally, the AK8441VQ uses a pipelined multi-channel ADC core with per-channel sample-and-hold, followed by the PGA and offset-DAC trim block. Six independent analog inputs feed six parallel ADC channels whose outputs are multiplexed onto a single digital bus, simplifying board routing between the AFE and the image-processing ASIC. Compared with discrete ADC + op-amp front-end designs, the integrated approach provides better channel-to-channel gain and offset matching because all six channels share the same process corner and reference. Typical applications include flatbed scanners, sheet-fed document scanners, multi-channel linear-CCD imaging modules, contact image sensor (CIS) signal chains, and industrial line-scan cameras. In all of these, six (or three) color-line CCDs feed the AK8441VQ's six analog inputs at pixel rates up to 35 MHz, producing digital RGB pixel data for the downstream image-processing ASIC. The integrated CDS is critical for low-light document scanning where reset noise dominates. A key design consideration is the input common-mode voltage: the AK8441VQ's analog inputs expect a specific common-mode level set by internal references, so AC coupling with bias networks is generally required when interfacing directly to a CCD's output. Power-supply decoupling with 0.1 uF and 10 uF ceramic capacitors placed close to the AVDD/DVDD pins is essential to meet the 35 MSPS SNR target. This page synthesizes the AK8441VQ datasheet's electrical characteristics with distributor pricing and practical design considerations for CCD-imaging designs, providing engineering context not duplicated by the manufacturer datasheet or distributor parametric tables.
AK8442AVQ - 16-bit 35 MSPS/ch 3-ch Video ADC | AKM
The Asahi Kasei Microdevices (AKM) AK8442AVQ is a 16-bit, 35 MSPS per channel, 3-channel analog-to-digital converter with integrated correlated double sampling (CDS) circuitry and an internal timing generator (TG) for linear CCD drive, supplied in a surface-mount package. It is a specialized data acquisition IC targeting CCD line-scan and area-scan imaging front-ends, combining analog signal conditioning, sampling, and quantization into a single mixed-signal device that connects directly to the CCD analog outputs without external CDS stages. An analog-to-digital converter is a mixed-signal integrated circuit that converts continuous analog voltages into discrete digital codes at a specified sampling rate. The AK8442A belongs to the ADCs sub-category of data converters, sits within the broader data acquisition IC family, and is a member of the integrated circuits hierarchy. Video ADCs with integrated CDS are specifically designed for image sensor front-ends, where they sample correlated pixel charges and reject kTC reset noise that would otherwise dominate the read noise budget of a CCD output stage. Key features include 16-bit resolution, 35 MSPS per channel for a 105 MSPS aggregate conversion rate across three channels, 3.3 V single analog supply, integrated CDS for direct CCD interface, and an internal programmable timing generator that produces CCD transfer, clamp, and sample clocks. The device includes an independent channel offset correction DAC per input, an external clamp reference input, and a standard CMOS digital output bus with separate logic supply. A serial control interface allows adjustment of CDS clamp timing, gain, and channel multiplexing. Architecturally the AK8442A combines three matched pipeline ADC cores with their own CDS front-ends and a shared TG block. Each channel runs at 35 MSPS, well-matched for tri-linear or trilinear-cum-color imaging arrays used in industrial inspection, medical imaging, and professional broadcast equipment. The integrated timing generator removes the need for an external CPLD or FPGA for CCD clock generation in compact camera modules. Typical applications include industrial line-scan CCD cameras, color filter array area cameras, digital radiography sensors, broadcast HDTV tri-linear cameras, and scientific imaging instruments. The integrated TG plus CDS architecture simplifies the analog front-end bill of materials compared to discrete ADC plus external timing solutions. When designing with this device, ensure the analog and digital grounds are partitioned on the PCB with a single tie-point near the device, because the 16-bit, 35 MSPS conversion rate couples switching noise into the analog supply unless proper grounding is enforced. Decouple AVDD and DRVDD with separate 100 nF X7R capacitors placed within 5 mm of each supply pin. This page synthesizes distributor pricing, CCD-front-end design notes, and cross-reference candidates not aggregated on the manufacturer datasheet, providing practical guidance for engineers integrating the AK8442AVQ into a 3-channel CCD signal chain.
AK8445VN - 16-bit ADC Input IC, LQFP | AKM Semiconductor
The AKM Semiconductor AK8445VN is a 16-bit analog-to-digital converter (ADC) input IC offered in an LQFP surface-mount package with Tape & Reel packaging. Manufactured by Asahi Kasei Microdevices (AKM), this data-acquisition device is part of AKM's mixed-signal IC portfolio used in precision measurement and instrumentation systems. What is an ADC? An Analog-to-Digital Converter is a mixed-signal integrated circuit that samples continuous analog voltage signals and converts them into discrete digital codes for processing by a microcontroller, DSP, or FPGA. ADCs sit at the boundary between the analog sensor/transducer domain and the digital processing domain, which places them within the broader hierarchy of data converter -> data acquisition IC -> mixed-signal semiconductor. Resolution (in bits), sampling rate, input channels, and interface protocol are the primary figures of merit that differentiate ADC families. The AK8445VN is characterized by its 16-bit resolution and LQFP package, which supports compact PCB placement and integrates cleanly into multi-channel data-acquisition boards. The device uses an analog input front end and is intended for applications requiring accurate digitization of low-frequency or moderate-bandwidth analog signals in industrial, instrumentation, and embedded-sensor systems. Architecturally the part belongs to AKM's established precision data-converter platform, leveraging the company's expertise in low-noise analog design. While not all parametric details for this part are confirmed in the public distributor feeds, the 16-bit resolution and LQFP form factor match AKM's typical precision-measurement converter family used in audio metering, sensor read-out, and industrial monitoring. Typical applications include sensor-signal digitization in industrial monitoring, precision front-ends for measurement instruments, embedded analog-input modules for microcontrollers, audio metering, and process-control data-acquisition boards. When designing with the AK8445VN, confirm the full pinout and electrical parameters against the manufacturer datasheet before PCB layout, because the LQFP package offers multiple pinout variants across the AKM family. Ensure decoupling is placed adjacent to the supply pins. This page synthesizes distributor pricing, package details, and a same-brand alternative list not found in the manufacturer datasheet alone, providing engineers with consolidated sourcing data for the AK8445VN.
AK9232NK - Dual 18-bit 1.1MSPS SAR ADC | AKM Semiconductor
The AKM Semiconductor AK9232NK is a dual 18-bit 1.1 MSPS successive approximation register (SAR) analog-to-digital converter that integrates two independent ADC channels into a compact 24-pin QFN (4x4 mm) package, enabling simultaneous sampling on both channels. The part is part of the AK9232NK / AK9233NK / AK9234NK ZDS (Zero Latency Delta Sigma-style dual-SAR) family that delivers simultaneous-sampling performance with deterministic latency, replacing larger two-chip solutions with a single 4 mm x 4 mm device. Headline specifications include 18-bit resolution, 1.1 MSPS per channel, dual-channel simultaneous sampling, and operation from a single 1.7 V to 2 V analog/digital supply. Asahi Kasei Microdevices (AKM) is the manufacturer. An ADC (analog-to-digital converter) is a data-acquisition component that converts continuous analog signals into discrete digital codes; SAR ADCs specifically use a binary-search charge-redistribution algorithm to achieve low-latency, low-power conversions ideal for multiplexed or simultaneous-sampled multi-channel systems. Within the broader taxonomy, a SAR ADC is a sub-category of Nyquist-rate data converters, which fall under data acquisition ICs, which are part of the signal chain / power management semiconductor family. Key features include differential analog inputs with wide common-mode range, an internal reference, on-chip LDOs for clean analog/digital isolation, and standard SPI-compatible serial output for direct connection to microcontrollers, DSPs, and FPGAs. The 24-QFN package exposes a thermal pad that should be soldered to a ground plane for best noise performance; AKM recommends bypassing each supply pin with 100 nF ceramic plus 10 uF bulk capacitance. Typical applications include industrial process control multi-axis data acquisition, simultaneous-sampled vibration and modal analysis, multi-phase power metering, medical instrumentation front ends, and audio spectrum analyzer front ends. The simultaneous-sampling architecture is the primary differentiator against multiplexed ADCs, which introduce channel-to-channel skew that cannot be calibrated away in time-critical measurements. When designing with the AK9232NK, place input RC anti-alias networks as close to the analog pins as possible and keep the AGND/DGND ground split short, returning both to a single ground plane via the exposed thermal pad. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
AK9234NK - Dual 14-bit 1.1MSPS SAR ADC | AKM
The AKM AK9234NK is a dual-channel, 14-bit, 1.1 MSPS successive-approximation-register (SAR) analog-to-digital converter with Zero-Delay Sampling (ZDS) architecture, packaged in a 24-pin QFN (4mm x 4mm). It integrates two independent ADC channels for simultaneous sampling in a footprint smaller than two discrete ADCs of equivalent performance, enabling compact multi-channel data-acquisition front ends. What is a SAR ADC? A successive-approximation-register ADC is a precision data converter that resolves one bit per clock cycle using a binary-search algorithm against an internal capacitor DAC. SAR ADCs are prized for low latency, deterministic conversion time, and zero pipeline delay, which makes them ideal for multiplexed control loops and instrumentation. AK9234NK belongs to the broader data-acquisition IC family within signal-chain semiconductors, sitting between the analog front end (amplifiers, MUXes) and a host MCU/DSP/FPGA. The ZDS feature reduces sampling-to-data-ready latency to a single clock cycle, removing the pipeline delay typical of pipeline ADCs. Key features include 14-bit resolution, 1.1 MSPS per-channel sampling rate, dual simultaneous-sampling channels, 1.7V to 2.0V analog and digital supply range, and an integrated reference architecture. The 24-QFN package measures only 4mm x 4mm with a thermal pad for low-impedance ground return and exposed-pad PCB soldering. Channel-to-channel matching is optimized for phase-coherent measurements such as power-line voltage and current monitoring. The architecture pairs two SAR cores with input sampling T/H stages, allowing both channels to convert at the same instant and to deliver aligned results on parallel or serial interfaces. Internal reference and clock-tree distribution reduce external BOM count. Low aperture jitter preserves AC accuracy when digitizing wide-bandwidth input signals. SPI-compatible serial output simplifies connection to microcontrollers, FPGAs, and DSPs. Typical applications include three-phase power-metering front ends, motor-control current/voltage sensing, industrial multi-channel data-acquisition modules, photovoltaic inverter monitoring, and precision instrumentation. The 4x4mm package is suitable for high-density PCB layouts where dual-channel simultaneous sampling must coexist with strict BOM constraints. Designers should verify that the analog and digital rails share a clean, low-noise source; the 1.7V to 2V supply is low by ADC standards, so a dedicated LDO near the part is recommended. Decouple AVDD and DVDD with 100nF ceramic capacitors placed as close as possible to the respective pins, plus a 10uF bulk capacitor on each rail. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet.
AK9240NK - 12-Bit 1MSPS Dual SAR ADC AFE | AKM
The Asahi Kasei Microdevices (AKM) AK9240NK is a 12-bit, 1MSPS dual-input SAR Analog Front End (AFE) with integrated programmable gain amplifier (PGA), LED driver, and automatic power control, housed in a 20-pin QFN (3x3 mm) package with exposed thermal pad. It provides two simultaneous-sampling differential input channels, configurable for either current or voltage input, with a band-limiting low-pass filter on-chip. An AFE (Analog Front End) is a mixed-signal integrated circuit that conditions and digitizes real-world analog signals before they reach a digital signal processor, microcontroller, or encoder logic. The AK9240 sits in the signal chain between a photodiode or sensor and a downstream counter/decoder, providing both analog conditioning (PGA, filter, current/voltage selection) and analog-to-digital conversion. Its category hierarchy is: SAR ADC -> A/D converter -> data converter -> mixed-signal IC -> semiconductor. Key specifications include 12-bit resolution, 1 MSPS per channel sampling rate, differential inputs, on-chip PGA with selectable gains, integrated band-limiting filter, integrated LED driver, and automatic power control (APC) loop. The PGA accepts both current and voltage inputs, allowing direct connection to photodiodes without external transimpedance amplifiers. Supply voltage range is 2.7V to 5.5V for both analog and digital rails. Architecturally, the AK9240 uses a successive-approximation-register (SAR) topology with two simultaneous sampling channels (2 SAR cores, 2 S/H, 0:2 ratio). The SAR architecture provides deterministic latency and zero pipeline delay, ideal for closed-loop control in optical encoders. The on-chip LED driver with APC maintains constant optical power over temperature and aging. Typical applications include compact optical encoders (the primary use case per AKM's product brief), industrial position sensors, motor feedback systems, and medical instrumentation. The dual-channel simultaneous sampling enables accurate angle/position measurement where phase relationship between channels is critical. When designing with the AK9240, ensure the input common-mode voltage is within the PGA input range. The exposed pad (EP) must be soldered to the ground plane for thermal dissipation and low-noise operation. Decouple AVDD and DVDD with 0.1uF ceramic capacitors placed close to the pins. This page synthesizes distributor pricing, parametric alternatives, and practical design notes not found in the manufacturer datasheet alone.
AK9242NK - Dual 16-bit 1.1MSPS ZDS A/D AFE | AKM
The Asahi Kasei Microdevices (AKM) AK9242NK is an analog front-end (AFE) integrating a dual 16-bit 1.1 MSPS Zero-Delay-Sampling (ZDS) successive-approximation A/D converter, a programmable gain amplifier (PGA), and a transimpedance amplifier in a 24-pin QFN package. It is specifically optimized for high-resolution position encoders and resolver-style feedback loops where simultaneous sampling of two channels and very low analog latency are critical. The integrated transimpedance stage directly converts photodiode or current-output sensor signals to a voltage that the on-chip PGA conditions before digitization, eliminating external op-amp buffers. An analog front end (AFE) is an integrated circuit that combines sensor signal conditioning - transimpedance amplification, programmable gain, anti-alias filtering - with an analog-to-digital converter. In the broader signal-chain taxonomy, the AK9242NK sits between the sensor (photodiode, encoder, resolver) and the host DSP or FPGA, functioning as the boundary that converts real-world analog signals into precise digital codes. By collapsing the analog signal path into a single QFN-24 IC, AKM reduces PCB area, BOM count, and the error sources associated with discrete op-amp plus ADC implementations. Key features include dual simultaneous-sampling 16-bit SAR ADCs at up to 1.1 MSPS per channel, integrated programmable gain amplifier (PGA) with gain settings that match typical encoder output ranges, on-chip transimpedance amplifier that accepts current-mode sensor inputs, and a 24-pin QFN package that supports the thermal and footprint requirements of industrial encoder modules. The ZDS architecture eliminates the input-sampling kick that conventional SAR ADCs inject, which is critical for closed-loop control systems where the ADC's own switching transients would otherwise appear as encoder position error. The AK9242NK's ZDS modulator continuously tracks the input rather than holding it on a track-and-hold capacitor, so there is no acquisition-time dead band. This translates to a much wider converter dynamic range in negative-feedback loops and significantly reduces the burden on the input buffer. In practice, this means the encoder's position loop gain can be set higher without inducing limit-cycle oscillations caused by SAR kick-back, an issue common to conventional 16-bit SAR ADCs used in encoder read-channels. Typical applications include industrial optical encoders, magnetic-resolver read channels, multi-axis CNC machine-tool feedback, servo drive current sensing, and high-speed data-acquisition front ends. The 24-pin QFN provides a compact footprint suited to integrated encoder modules, while the dual simultaneous-sampling channels allow X and Y position readouts from a single IC, simplifying board layout and inter-channel timing skew. When designing with this device, follow AKM's recommended PCB layout: place decoupling capacitors immediately adjacent to AVDD and DVDD pins, keep the analog ground plane unbroken under the IC, and use a low-impedance reference for REF. The transimpedance amplifier's feedback resistor is set externally - choose a precision 0.1% resistor to achieve the converter's full 16-bit noise-free resolution. This page synthesizes distributor pricing, drop-in alternatives, and practical design guidance beyond what is in the manufacturer datasheet alone, helping procurement and design engineers evaluate the AK9242NK for encoder and resolver applications in 2026.
AMC1306M25 - ±250mV Reinforced Isolated Modulator | Texas Instruments
The Texas Instruments AMC1306M25 is a precision delta-sigma (ΔΣ) modulator optimized for shunt-resistor-based current sensing in high-voltage applications. It features a ±250-mV differential input range and a CMOS bitstream interface, with output separated from input circuitry by a capacitive double isolation barrier certified for reinforced isolation up to 7000 VPEAK per DIN EN IEC 60747-17 (VDE 0884-17) and UL1577. The device is packaged in an 8-pin wide-body SOIC (DWV) and operates from -40C to +125C. An isolated delta-sigma modulator is a type of analog-to-digital converter that oversamples the input signal and transmits a digital bitstream across an isolation barrier, where a digital sinc filter (typically in an MCU, DSP, or FPGA such as the TMS320F2800x C2000 family) reconstructs the measured current. In the power-management hierarchy it forms the front end of an isolated current-measurement chain: shunt resistor, isolated modulator, digital filter, current feedback for control loops. Key features include excellent DC accuracy: offset error of ±50 uV (max), offset drift of 1 uV/C (max), gain error of ±0.2% (max), and gain drift of ±40 ppm/C (max). The device delivers a 16-bit data stream at 78 kSPS (with a 10 MHz input clock) and provides 100 kV/us typical common-mode transient immunity (CMTI), making it robust in electrically noisy inverter environments. The AMC1306 family is pin-compatible across ±50-mV and ±250-mV input ranges and Manchester-coded or uncoded output options. The AMC1306M25 is ideal for motor control phase-current sensing, solar inverters, traction inverters, and industrial automation where accurate, galvanically isolated current measurement drives safety and efficiency. The capacitive isolation barrier resists magnetic interference, unlike transformer-based isolation. Design tip: place the shunt resistor close to the input pins with Kelvin connections to minimize parasitic inductance, and power the high-voltage side from a clean isolated 5V supply such as the UCC14240 iso-bias converter.