ADC/DAC
Products (2518)
ADC0804S040TS/C1 - 8-Bit 40MSPS ADC, 28-SSOP | Renesas
The Renesas ADC0804S040TS/C1 is an 8-bit, single-channel, high-speed, low-power analog-to-digital converter (ADC) that supports sampling rates up to 40 MSPS, housed in a 28-pin SSOP (Shrink Small Outline Package). It belongs to the ADC0806030/040/050 family, which is optimized for professional video and high-speed instrumentation applications where moderate resolution and bandwidth are required. The part converts an analog input signal into an 8-bit binary-coded digital word at up to 40 megasamples per second, with all digital inputs and outputs being TTL and CMOS compatible. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples continuous-time analog voltages and quantizes them into discrete digital codes. Pipeline ADCs like the ADC0804S040TS use a switched-capacitor architecture with multiple gain stages and a flash backend, achieving a balance between sampling speed, resolution, and power consumption. In the broader system hierarchy, an 8-bit ADC belongs to the data-converter family, which sits under signal-chain ICs and ultimately power-management and mixed-signal IC categories of semiconductors. Key features of this device include 8-bit resolution, a 40 MSPS maximum sampling rate, single-channel input, parallel output interface, and low power consumption typical of the family. The 28-SSOP package offers a compact footprint suitable for high-density PCB layouts in video capture cards, LCD projection systems, and digital oscilloscope front ends. The architecture provides excellent linearity at video-grade sample rates, making it suitable for digitizing standard-definition video signals. Typical applications include professional video digitizing equipment, surveillance and security camera systems, set-top box video processing, medical imaging front ends, and general-purpose high-speed data acquisition systems. The wide sampling-rate headroom (up to 40 MSPS) oversamples standard video bandwidths, easing analog anti-alias filter design. When designing with this part, pay attention to analog input bandwidth and clock-jitter budgets, as jitter directly affects SNR. Use a low-jitter clock source and provide adequate decoupling on AVDD/DVDD rails. The commercial-grade temperature range (0C to +70C) makes it suitable for indoor equipment but not for automotive or extended-industrial deployments.
ADC0804S040TS/C1:1 - 8-bit 40 MSPS ADC, 28-SSOP | NXP
The NXP ADC0804S040TS/C1:1 is a single-channel 8-bit high-speed, low-power analog-to-digital converter (ADC) sampling at up to 40 MSPS, housed in a 28-pin SSOP (SOT341-1) package. It belongs to the ADC0806030/040/050 family of 8-bit high-speed ADCs designed for professional video, IF digitization, and instrumentation applications, with this specific variant offering 40 MSPS throughput and a commercial 0C to 70C operating temperature range. An ADC (Analog-to-Digital Converter) is a semiconductor device that converts continuous analog input signals into discrete digital codes, acting as the bridge between the analog physical world (sensors, video, RF) and digital processing (FPGAs, microcontrollers, DSPs). The 8-bit resolution means the input range is divided into 256 discrete quantization levels, giving a theoretical SNR of approximately 49.9 dB (6.02 dB/bit + 1.76 dB). In the data-acquisition signal chain hierarchy, ADCs sit between analog front-end conditioning (amplifiers, filters) and the digital domain, and they are categorized as data converters within the data acquisition and converter IC family. Key specifications include a single analog input channel, parallel 8-bit TTL/CMOS-compatible output, 40 MSPS maximum sampling rate, 5V single-supply operation, low power consumption, and TTL/CMOS-compatible digital I/O. The device uses a flash or half-flash (pipelined) architecture to achieve the 40 MSPS conversion rate with low latency suitable for real-time video processing. The 28-SSOP package with gull-wing leads is rated MSL1 at 260C peak reflow and supports commercial-grade temperature operation. Typical applications include professional video digitizers (SD/ED broadcast equipment), intermediate-frequency (IF) signal digitization, digital oscilloscope front-ends, CCD image sensor read-out, medical imaging, set-top box video capture, and high-speed instrumentation. The 40 MSPS rate makes it well-suited for digitizing standard-definition video at full bandwidth and undersampled IF signals in software-defined radio designs. Designers should note that proper analog input drive with a wide-bandwidth op-amp (such as an ADA4862 or LMH6702) and careful PCB layout with separate analog and digital ground planes are essential to achieve the rated ENOB. The single 5V supply and parallel interface simplify integration but require careful bus impedance matching when interfacing directly to an FPGA. This page synthesizes distributor pricing, drop-in SSOP-28 alternatives from the same ADC0806030/040/050 family and cross-brand sources, plus practical design notes not found in the manufacturer datasheet alone, helping engineers select and apply this 40 MSPS video-grade ADC quickly.
ADC0804S050TS/C1:1 - 8-bit 50MSPS Video ADC | Renesas
The Renesas ADC0804S050TS/C1:1 is a single-channel, 8-bit resolution, 50 MSPS sampling-rate analog-to-digital converter (ADC) designed for professional video and high-speed instrumentation applications, housed in a 28-pin SSOP package (SOT341-1, MO-150). It belongs to the ADC0804S030/040/050 family, where the trailing digits denote the maximum sample rate in mega-samples per second, and converts an analog input signal into 8-bit binary-coded digital signals at sample rates up to 50 MHz with TTL/CMOS-compatible I/O. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples a continuous-time analog voltage and quantizes it into a discrete digital code; flash, pipelined, and successive-approximation architectures dominate the high-speed 8-bit segment. The ADC0804S family sits at the intersection of the video ADC and high-speed data-acquisition hierarchies, optimized for low-power operation and direct connection to digital video processors, FPGAs, or DSPs without external buffering. Key features include a single analog input channel, 8-bit resolution, up to 50 MSPS sample rate, TTL/CMOS-compatible digital inputs and outputs with built-in latches, low-power CMOS architecture, and an operating temperature range of 0C to +70C commercial grade. The on-chip sample-and-hold and reference ladder simplify external bill-of-materials, while the SSOP-28 footprint provides robust thermal performance and reliable surface-mount assembly. The architecture uses a pipelined-flash topology with internal bandgap reference and onboard clock conditioning, accepting a low-level sine-wave clock input directly (per the Renesas product brief). This eliminates the need for external clock drivers in many systems, reduces board area, and ensures deterministic conversion timing critical for video digitizing, IF sampling, and digital oscilloscope front ends. Typical applications include professional video digitizers, broadcast equipment, set-top box and graphics capture, digital oscilloscope and data acquisition front-ends, IF/RF signal sampling in communications, and medical imaging pre-processing. The single-channel 8-bit 50 MSPS profile matches legacy composite video (NTSC/PAL) digitizers and Y/C separation pre-stages in modern camera modules. When designing with this part, ensure the analog input network complies with the datasheet's source-impedance and bandwidth requirements, and provide a clean, low-jitter clock to maximize SNR. Decouple AVDD and DVDD supplies with separate ferrite beads to isolate switching noise from the analog front end. This page synthesizes distributor inventory from DigiKey, Renesas cross-reference data, parametric alternatives in the same SSOP-28 footprint, and practical design guidance not consolidated on the manufacturer's product page.
ADC0805LCN/NOPB - 8-Bit μP-Compatible SAR ADC | Texas Instruments
The Texas Instruments ADC0805LCN/NOPB is a CMOS 8-bit successive-approximation analog-to-digital converter with one SAR input channel, parallel data interface, and 20-pin PDIP (through-hole) package. It operates from a single 5 V supply and provides a differential potentiometric ladder architecture similar to the 256R product family, with on-chip clock generator and track-and-hold. An SAR (Successive Approximation Register) ADC is a type of analog-to-digital converter that performs binary-search conversions using an internal comparator and DAC. Each conversion takes a fixed number of clock cycles regardless of input amplitude, giving SAR ADCs deterministic latency and making them ideal for multiplexed data-acquisition systems. SAR ADCs sit in the broader hierarchy of data converter (ADC/DAC) -> data acquisition IC -> mixed-signal semiconductor, balancing speed, accuracy, and simplicity. Key features include 8-bit resolution, a single-ended analog input, differential input capability, on-chip clock, and tri-state output latches that directly drive microprocessor data buses (such as the NSC800 and INS8080A derivative control buses). The differential potentiometric ladder ensures zero-scale full-scale ratiometric operation, eliminating the need for precision external reference components when used with ratiometric sensors. The device architecture uses a switched-capacitor DAC and a CMOS comparator inside the SAR loop, sampled under an internal clock derived from an external R/C network. A built-in track-and-hold captures the input at the start of each conversion; the part then produces a tri-state parallel byte suitable for direct connection to 8-bit microprocessor data buses. Power consumption is low because the converter powers down between conversions when driven by the WR/RD handshake lines. Typical applications include process-control data loggers, portable instrumentation, ratiometric sensor digitisation (strain gauges, thermistors, potentiometric position sensors), digital panel meters, and embedded microprocessor analog front ends. Industrial-grade operating temperature range of -40 °C to +85 °C makes the part suitable for factory-floor equipment and outdoor enclosures. When designing-in is planned, set the clock resistor and capacitor on pins CLK R and CLK IN to the values recommended in the manufacturer datasheet typical-application section to achieve the desired conversion rate. Tie CS and RD low for free-running conversion, or use them to synchronise acquisition to a microcontroller bus cycle. Decouple V+ with a 0.1 µF ceramic placed within 10 mm of the supply pin to limit digital switching noise. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement the manufacturer datasheet's typical-application circuit by adding validated cross-reference data and PCB-level decoupling guidance.
ADC08062CIWM/NOPB - 8-Bit 1.5MSPS 2-Input ADC | Texas Instruments
The Texas Instruments ADC08062CIWM/NOPB is an 8-bit analog-to-digital converter featuring 2 single-ended input channels, an internal sample-and-hold (S/H), and a 1.5 MSPS sampling rate, housed in a 20-pin SOIC (IWM) wide-body package. According to the manufacturer datasheet, the part uses a patented multi-step flash A/D conversion technique that delivers a typical 500 ns conversion time while consuming only 125 mW of power. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous analog voltages into discrete digital codes. Within the broader signal chain hierarchy, an 8-bit ADC sits between the analog front end (sensors, amplifiers, filters) and the digital back end (microcontroller, DSP, FPGA). The ADC08062 belongs to the multi-step / half-flash sub-family, which uses two lower-resolution flash stages with a coarse/fine architecture to balance conversion speed against die size and power. Key features of the ADC08062CIWM/NOPB include 1.5 MSPS throughput, a parallel data interface, single +5 V supply operation, an external reference input, and an internal 2-input analog multiplexer that allows two channels to be digitized with a single converter. The integrated sample-and-hold eliminates the need for an external track-and-hold amplifier in most applications. Operating temperature range is -40 C to +85 C, suitable for industrial environments. The patented multi-step architecture is implemented in CMOS and provides 8 bits of resolution at sub-microsecond conversion times. The internal S/H is rated to handle full-scale input transitions at the maximum conversion rate without requiring external buffering, simplifying PCB layout. The external reference allows the user to set the input full-scale range to match sensor output spans. Typical applications include industrial process control, video digitizing (such as composite video capture), instrumentation, and digital oscilloscope front ends. The wide SOIC package also supports retrofit designs where a 20-pin SOIC footprint is already laid out. When designing with this part, ensure the analog input is bandwidth-limited to avoid aliasing and decouple the +5 V supply with both 0.1 uF and 10 uF capacitors placed as close to the AVDD pin as possible. The part is now in obsolete / end-of-life status, so designers of new products should plan for a long-term supply of known-good stock or select a currently-active alternative. This page synthesizes distributor pricing, parametric alternatives, and practical design notes not found in the manufacturer datasheet, providing actionable information for engineers sourcing or replacing this legacy TI/NSC ADC.
ADC08062CIWMX - 8-Bit 2-Channel Sigma-Delta ADC | Texas Instruments
The Texas Instruments ADC08062CIWMX is an 8-bit, two-channel, sigma-delta analog-to-digital converter housed in a 20-pin SOIC (IWM) wide-body surface-mount package. It integrates two analog input channels and provides 8-bit resolution using a single sigma-delta conversion architecture, with the digitizer, reference and clock conditioning combined on a single monolithic die. The part is specified for industrial temperature-grade operation and ships in tape-and-reel packaging as designated by the "TR" suffix in the variant marking. Sigma-delta ADCs like the ADC08062 trade raw conversion speed for very high effective resolution at low signal bandwidths. By oversampling the input and shaping quantization noise away from the baseband, these converters deliver high linearity and excellent noise rejection without requiring complex external anti-alias filters. The ADC08062 family belongs to the broader analog-to-digital converter IC category, which sits within data-conversion and signal-chain semiconductors on the hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. Key differentiating features include dual single-ended inputs that share a common conversion path, integrated reference support that simplifies BOM, and an SOIC-20 wide-body package that provides robust thermal performance and easy hand-solderability for prototype builds. The converter's 8-bit output stream is read via a simple serial interface that lets a microcontroller clock conversions without external logic. The industrial temperature grade (-40C to +85C) makes it suitable for factory-floor, instrumentation, and consumer-electronics designs. Typical applications include process-control front ends, weigh-scale and load-cell signal conditioning, temperature monitoring via thermocouple or RTD front ends, and low-bandwidth instrumentation channels where sigma-delta oversampling yields clean conversion results. Two input channels allow simultaneous or multiplexed sensing of a primary sensor plus a reference/junction channel. When designing with this part, observe the recommended input common-mode range, place the decoupling capacitor close to the supply pin, and confirm the serial-interface timing against the controller's timing budget before committing to layout. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single distributor product page, providing a more decision-ready summary than the raw datasheet.
ADC0808S125HW-C1 - 8-bit 125MSPS Differential ADC | Renesas
The Renesas ADC0808S125HW-C1 is a differential, high-speed, 8-bit Analog-to-Digital Converter (ADC) optimized for telecommunication transmission control systems and tape drive applications. It allows signal sampling frequencies up to 250 MHz, with the standard part operating at 125 MSPS, and features selectable 1.8 V CMOS or LVDS clock inputs, parallel data outputs, and a 48-pin TQFP exposed-pad package. An 8-bit ADC (Analog-to-Digital Converter) is a data converter that translates an analog input voltage into a discrete 8-bit binary code. Within the converter hierarchy, the ADC0808S sits in the high-speed, low-resolution family: 8-bit -> successive-approximation / flash hybrid -> ADC -> data converter -> mixed-signal IC -> semiconductor. This class of converter is widely deployed in IF/RF signal chains, instrumentation, and high-speed control loops where 8-bit dynamic range is sufficient and conversion latency must remain below one clock cycle. Key features of the ADC0808S include a maximum sampling rate of 125 MSPS (250 MSPS for the pin-compatible speed-grade variant), selectable CMOS/LVDS clock interface, parallel LVTTL-compatible data outputs, and integrated input sampling architecture that simplifies external analog front-end design. The device operates from a single 3.3 V supply and draws relatively low power for its speed class, making it well-suited to dense PCB layouts. The 48-TQFP exposed-pad package provides a low thermal-resistance path to the PCB copper pour. Typical applications include telecommunication IF/baseband digitizers, tape drive read-channel ADCs, ultrasound beamforming front-ends, and general-purpose high-speed data acquisition. The 250 MSPS ceiling also makes the same silicon useful in low-resolution digital oscilloscope front-ends and radar signal preprocessing where the requirement is raw sampling rate rather than bit depth. When designing with the ADC0808S125HW-C1, attention must be paid to analog input common-mode and differential drive levels, layout of the clock input traces (length-matched for LVDS), and adequate power-supply decoupling around the exposed pad. The exposed pad must be soldered to a low-impedance ground plane for both thermal and electrical performance. This page synthesizes distributor stock levels, drop-in pin-compatible variants, and practical PCB-layout guidance not found in the manufacturer datasheet alone, giving purchasing and design engineers a single reference for sourcing, qualifying, and laying out the ADC0808S125HW-C1.
ADC0808S125HW-C18 - 8-bit 125 MSPS ADC | Renesas
The Renesas ADC0808S125HW-C18 is a single-channel, high-speed 8-bit Analog-to-Digital Converter (ADC) with a maximum sampling rate of 125 MSPS, housed in a 48-pin HTQFP package with exposed thermal pad and supplied on Tape & Reel. The part is differentiated by its selectable CMOS or LVDS clock inputs, dual data output interfaces (CMOS and LVDS DDR), and a power dissipation of approximately 400 mW at 125 MSPS. It is built for telecom transmission control systems, tape drive read channels, and other high-speed instrumentation front-ends where differential analog inputs up to 1 Vp-p are sampled against a stable internal reference. An ADC (Analog-to-Digital Converter) is a mixed-signal integrated circuit that quantizes a continuous-time analog waveform into discrete digital codes. High-speed 8-bit ADCs sit at the entry point of the high-speed converter hierarchy: pipeline ADCs -> flash ADCs -> 8-bit ADCs -> data converters -> mixed-signal ICs -> semiconductor. The 8-bit/125 MSPS class is typically used as the capture stage before downstream digital signal processing in demodulators, equalizers, and oversampling decimators. Key features of the ADC0808S125HW-C18 include 7.2 ENOB (effective number of bits) at Nyquist, 1 Vp-p differential full-scale input range, 1.8 V CMOS or LVDS selectable clock input, on-chip 1.25 V reference, and a 3.3 V analog supply with 1.8 V digital I/O supply. The output interface can be configured as CMOS or LVDS DDR data, giving the designer a flexible handoff to an FPGA. The exposed-pad HTQFP package keeps the die-to-ambient thermal resistance low enough for continuous 125 MSPS operation in industrial temperature environments. The architecture is a differential pipeline converter optimized for low-latency sampling. Differential analog inputs reject common-mode noise from the PCB environment, and the integrated reference eliminates an external reference IC. The pipelined architecture introduces a fixed conversion latency that is consistent and deterministic, simplifying synchronization with downstream FPGA logic. Typical applications include telecommunication transmission control systems, tape drive read channels, digital oscilloscope front-ends, and general-purpose high-speed data acquisition systems. The combination of selectable clock and output interfaces allows the ADC to bridge cleanly into either legacy CMOS ASIC/FPGA logic or modern LVDS-serdes-based FPGA designs. When designing with this device, pay attention to the analog input common-mode voltage and the input bandwidth: the input must be AC- or DC-coupled into the specified common-mode voltage for full-scale accuracy, and the analog input bandwidth should exceed 250 MHz to preserve the 125 MSPS Nyquist performance. The exposed pad must be soldered to a continuous ground plane for thermal dissipation and ground reference integrity. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer product page, giving engineers a single source for sourcing, replacement, and design-in decisions.
ADC0808S125HW/C1 - 8-bit 125/250 Msps ADC | NXP | 48-HTQFP
The NXP Semiconductors ADC0808S125HW/C1 is a single-channel, differential-input, 8-bit analog-to-digital converter (ADC) supporting sampling rates up to 125 MHz (and oversampled to 250 MHz) in a 48-pin HTQFP exposed-pad (7x7 mm) package. It targets high-speed signal acquisition in telecommunication transmission control systems and tape drive read channels. The part integrates a parallel CMOS-style output interface and offers selectable 1.8 V CMOS or LVDS clock inputs for design flexibility. An 8-bit ADC is the lowest-resolution member of the successive-approximation and pipelined converter families, typically delivering conversion latencies of a few clock cycles while providing the widest possible sampling-rate headroom at the lowest system cost. The ADC0808S belongs to the data-converter IC family of mixed-signal components, sitting between analog signal conditioning and the digital back-end (FPGA, ASIC, or DSP). It is a monolithic CMOS device, designed for board-level integration rather than as a discrete ADC module. Key features of the ADC0808S125HW/C1 include 8-bit resolution, a parallel data interface, a 48-TQFP (HTQFP) exposed-pad package with gull-wing leads, and an industrial operating temperature range of -40C to +85C. The differential analog input architecture rejects common-mode noise - essential in long-trace or noisy backplane environments - while the parallel output bus simplifies connection to FPGAs and high-speed DSPs. The device is specified over the industrial grade and ships in Tape & Reel packaging for SMT production lines. The architecture uses high-speed CMOS comparators and an internal reference, clocked through either single-ended 1.8 V CMOS or differential LVDS, allowing the part to coexist with modern serializer/deserializer (SerDes) clock trees. Bit-error-rate is dominated by the analog front-end and board layout; the ADC0808S provides an industry-standard 8-bit output code at up to 125 Msps that back-end logic can decode on a single clock edge. Typical applications include telecommunication transmission control systems, tape drive read channels, instrumentation digitizers, intermediate-frequency (IF) sub-sampling stages, and digital oscilloscope front-ends. The differential input makes the part attractive for transformer- or op-amp-coupled IF strips where ground bounce must be rejected. Designers should choose this part when 8 bits of dynamic range are sufficient and high sampling rate is the priority. In production designs, follow the reference decoupling scheme shown in the datasheet and tie the exposed pad to a solid ground plane for thermal dissipation. This page synthesizes distributor pricing, pin-compatible alternatives, and design notes that augment the manufacturer datasheet.
ADC0808S250HW-C1 - 8-bit 250 MSPS Differential ADC | Renesas
The Renesas ADC0808S250HW-C1 is a single-channel, 8-bit, high-speed differential Analog-to-Digital Converter (ADC) sampling up to 250 MSPS in a 48-pin HTQFP (7x7 mm) exposed-pad package. It is optimized for telecommunication transmission control systems and tape drive applications, where fast settling time and low-latency digital outputs are required. The converter uses a differential input architecture and offers selectable 1.8 V CMOS or LVDS clock inputs to ease interfacing with modern FPGAs and ASICs. An Analog-to-Digital Converter (ADC) is a mixed-signal integrated circuit that converts continuous analog voltages into discrete digital codes at a sampling rate set by an external clock. In the hierarchy of data converters, the ADC0808S250HW-C1 belongs to the high-speed flash/pipeline ADC family, sitting between general-purpose successive-approximation ADCs (typically <5 MSPS) and very-high-speed wideband converters. It serves as the front-end digitizer in systems that demand high sample rates but only modest resolution, such as baseband demodulators, IF digitizers, and data-acquisition modules. Key features of this device include 8-bit resolution, 250 MSPS maximum sampling rate, a differential analog input, and 1.8 V CMOS or LVDS clock input compatibility. Static digital controls (CLKSEL, CCSSEL, CE, OTC, DEL0, DEL1) are all 1.8 V CMOS compatible. The Complete Conversion Signal (CCS) is programmable, allowing the delay time of the acquisition clock and the acquisition clock frequency to be tuned for system-level timing flexibility. Internally the device uses a high-speed track-and-hold front-end followed by an 8-bit quantizer and parallel CMOS output drivers. Parallel data interface enables single-clock latency and simplifies connection to FPGAs without requiring a high-speed serial deserializer. The exposed thermal pad provides a low-thermal-resistance path (theta-JA in the datasheet) for continuous full-speed operation. Typical applications include telecommunication transmission control systems, tape drive read channels, IF sampling in software-defined radio, and high-speed instrumentation. Industrial-grade operating temperature range supports harsh-environment deployments. When designing with this part, ensure the LVDS or 1.8 V CMOS clock source meets the datasheet jitter specification, and provide a solid ground plane plus adequate decoupling to keep the analog front-end noise low.
ADC0808S250HW-C18 - 8-bit, 250Msps Differential ADC | Renesas
The Renesas ADC0808S250HW-C18 is a single-channel, 8-bit, high-speed Analog-to-Digital Converter (ADC) that samples differential analog inputs at up to 250 Msps, packaged in a 48-pin HTQFP (7x7 mm) with exposed thermal pad. It targets telecom transmission control, tape drive read channels, and other high-speed instrumentation front ends where 8-bit dynamic range is sufficient. An ADC (Analog-to-Digital Converter) is a semiconductor device that converts continuous analog voltage signals into discrete digital codes at a defined sampling rate. High-speed ADCs such as the ADC0808S250HW sit in the signal chain hierarchy of mixed-signal data-acquisition systems: sensor -> analog front-end -> ADC -> digital processing (FPGA/ASIC). The "8-bit, 250 Msps" classification places it in the high-speed, low-resolution tier, optimized for bandwidth over dynamic range. Key features of the ADC0808S250HW include selectable 1.8 V CMOS or LVDS clock inputs, parallel CMOS-style data outputs, and a differential analog input stage optimized for high IF sampling. The 250 Msps sampling rate enables Nyquist bandwidth up to 125 MHz, suitable for undersampling IF signals in telecom receivers. The exposed-pad HTQFP-48 package provides low thermal resistance for sustained high-speed operation. The ADC0808S250HW uses a pipelined flash-style architecture (per Renesas family description) to balance speed and power, with internal reference and sampling clock management. The dual clock-interface standard (CMOS/LVDS selectable) eases board-level integration with both legacy 1.8 V CMOS logic and modern LVDS-based FPGA clock inputs. Typical applications include telecom transmission control systems, tape drive read channels, high-speed instrumentation, and IF sampling for communication receivers. The wide sampling-rate headroom also makes the part usable in radar signal processing and digital oscilloscope front-end designs. When designing with this part, pay close attention to analog input common-mode and differential drive levels, and place the exposed pad (EP) on a sufficient ground copper pour for thermal management. The clock-input standard (CMOS or LVDS) must be configured before sampling starts to avoid metastable capture. This page synthesizes distributor stock/pricing data, same-family drop-in alternatives, and practical design notes that complement the manufacturer datasheet for engineering decision-making.
ADC0808S250HW/C1 - 8-bit 250 MSPS Differential ADC | Renesas
The Renesas ADC0808S250HW/C1 is a high-speed, single-channel, 8-bit Analog-to-Digital Converter (ADC) optimized for telecommunications transmission control systems and tape drive applications, supporting differential analog inputs and sampling frequencies up to 250 MSPS. It is housed in a 48-pin HTQFP (7x7 mm) package with an exposed thermal pad for surface-mount designs. An Analog-to-Digital Converter (ADC) is a mixed-signal integrated circuit that converts continuous-time analog voltage signals into discrete-time digital codes. High-speed 8-bit ADCs such as the ADC0808S250HW/C1 occupy the lowest-resolution node of the pipeline/flash converter family hierarchy (ADC -> data converter -> mixed-signal IC -> semiconductor). At 250 MSPS, the device targets wideband IF digitization in communication infrastructure rather than precision measurement, where 12- to 16-bit SAR or delta-sigma converters would dominate. Key features include selectable 1.8 V CMOS or LVDS clock inputs, 1.8 V CMOS data outputs, and programmable Complete Conversion Signal (CCS) acquisition timing. Static digital control inputs (CLKSEL, CCSSEL, CE_N, OTC, DEL0, DEL1) operate from a 1.8 V CMOS rail, simplifying interface to modern FPGAs and ASICs. The differential analog input topology rejects common-mode noise on long PCB traces or cable interconnects typical in telecom backplane signal paths. Architecturally, the ADC0808S uses a high-speed comparator-based pipeline core with on-chip reference and timing control, eliminating the need for an external track-and-hold in most digital-IF applications. The 7x7 mm HTQFP package provides adequate thermal headroom (industrial -40 to +85 C operation) and is footprint-compatible across Renesas speed grades of the same family. Typical applications include QAM/QPSK demodulator IF sampling in cable modems and set-top boxes, digital oscilloscope front-ends, tape drive read-channel digitizers, and radar IF data acquisition. When designing with this part, ensure the analog input common-mode voltage matches the on-chip reference and that the 1.8 V supply is well decoupled with a 10 uF plus 100 nF pair within 5 mm of each supply pin.
ADC0808S250HW/C1:1 - 8-bit 250 MSPS ADC | HTQFP-48 | NXP
The NXP ADC0808S250HW/C1:1 is a single-channel, 8-bit, high-speed analog-to-digital converter optimized for signal sampling frequencies up to 250 MHz, housed in a 48-pin HTQFP (7x7 mm) package with exposed thermal pad. The part features a differential analog input, selectable 1.8 V CMOS or LVDS clock inputs, and a parallel LVDS data output interface, making it well suited for digitizing wideband IF/RF signals. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples continuous analog voltages and outputs discrete digital codes representing the input magnitude. The ADC0808S family is classified as a flash/interleaved pipeline ADC; it sits inside the data converter IC hierarchy alongside successive-approximation (SAR) and sigma-delta converters. This category is the bridge between the analog front end (amplifiers, filters, mixers) and the digital signal processing block (FPGA, ASIC, DSP) in virtually every modern signal chain. Key features include 250 MSPS maximum sampling rate, 8-bit resolution, differential analog input with 50 ohm internal termination option, integrated input buffer, and low-voltage differential signaling (LVDS) outputs for reduced EMI on parallel data buses. The device operates from a single 1.8 V supply and supports an extended industrial temperature range of -40C to +85C. The ADC0808S250HW uses an interleaved track-and-hold architecture with on-chip calibration to achieve 7.0 effective bits at the Nyquist input frequency. Clock jitter performance below 400 fs rms makes it well-suited for undersampling IF signals in telecom receivers. The internal data deskew logic aligns the MSB/LSB outputs to a common DDR clock, simplifying FPGA capture. Typical applications include telecommunication transmission control systems, tape drive read channels, digital oscilloscopes, IF digitizers in software-defined radio (SDR) platforms, and high-speed instrumentation. Its 250 MSPS capability supports undersampling of signals well into the second and third Nyquist zones. When designing with this device, pay close attention to PCB layout: route the differential analog input as a 100 ohm differential stripline, place the input coupling capacitors as close to the IC as possible, and provide a solid ground pour under the exposed thermal pad for low-impedance return paths. The LVDS outputs require 100 ohm differential termination at the receiver. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ADC0809CCN - 8-Bit 8-Channel SAR ADC | 10kSPS | 28-DIP
The Texas Instruments ADC0809CCN is a monolithic CMOS 8-bit analog-to-digital converter with an integrated 8-channel analog multiplexer, microprocessor-compatible control logic, and a successive-approximation register (SAR) architecture. It samples at up to 10 kSPS, operates from a single 4.5 V to 5.25 V supply, and is housed in a 28-pin PDIP through-hole package. The on-chip 256R ladder and chopper-stabilized comparator deliver ±1 LSB linearity with no missing codes, while the tri-state output latch supports direct bus connection to 8080/8051/6800-family microprocessors. What is a SAR ADC? A successive-approximation register ADC is a precision data converter that performs binary search against the input voltage using an internal DAC and comparator, producing one bit per clock cycle. SAR ADCs combine low latency, deterministic conversion time, and moderate resolution (typically 8 to 20 bits), making them the dominant architecture for multiplexed data-acquisition systems, motor control loops, and instrumentation front ends where DC accuracy and ease of microprocessor interfacing outweigh absolute sample rate. Key features of the ADC0809CCN include 8 single-ended analog input channels selected by a 3-bit address latch, an end-of-conversion (EOC) output flag that triggers a CPU interrupt or status read, a programmable clock up to 1.1 MHz, and TTL/CMOS-compatible I/O that simplifies level shifting to 3.3 V or 5 V MCUs. The 256R voltage-divider reference ladder and chopper-stabilized comparator suppress input offset drift across the -40 °C to +85 °C industrial temperature range, enabling stable 8-bit readings without periodic recalibration in process-control panels and benchtop instrumentation. The device uses a switched-capacitor DAC ladder that inherently tracks the analog input, providing excellent common-mode rejection of supply noise. Its 10 kSPS ceiling is well-matched to thermocouple, RTD, and process-variable sampling, while the integrated multiplexer eliminates the need for an external analog switch array, reducing both BOM cost and PCB area in legacy industrial designs. Typical applications include multi-zone temperature monitoring, factory-floor sensor aggregation, panel-meter and digital-multimeter front ends, legacy 8051-based process controllers, and battery-cell monitoring in uninterruptible power supplies. The DIP-28 footprint also makes it a popular drop-in for educational labs and retrocomputing ADC boards. When designing with this part, place a 0.1 µF decoupling capacitor as close as possible to VCC and a 10 µF bulk capacitor at the analog supply; the internal reference ladder draws transient current during each bit trial and is sensitive to supply ripple. Avoid driving unused analog inputs with floating signals - tie them to a defined mid-supply voltage to prevent channel-to-channel crosstalk through the multiplexer. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, enabling faster sourcing and lifecycle decisions for new designs and legacy maintenance.
ADC0809CCN/NOPB - 8-Bit 8-Ch µP-Compatible A/D Converter DIP-28
The Texas Instruments ADC0809CCN/NOPB is an 8-bit microprocessor-compatible analog-to-digital converter with an 8-channel analog multiplexer, successive-approximation register, and 3-state output latches, housed in a 28-pin PDIP (N) through-hole package. It converts up to 8 single-ended analog inputs at a sampling rate of approximately 10 kSPS using a single +5 V analog supply plus a separate +5 V digital supply, and provides TTL-compatible parallel outputs with on-chip address latches. An ADC (analog-to-digital converter) is an integrated circuit that converts continuous analog signals into discrete digital codes for processing by microcontrollers, DSPs, or logic circuits. The ADC0809 family belongs to the successive-approximation ADC (SAR ADC) category, which uses an internal DAC and comparator to perform a binary search against the input voltage each conversion cycle. Within the broader power-management and data-acquisition hierarchy, the ADC0809 sits at the bridge between analog sensors and digital control systems, often paired with op-amps for signal conditioning and voltage references for absolute accuracy. Key features include 8 single-ended input channels selected via three address lines (A, B, C) and an address-latch enable, on-chip +5 V reference scaling for the analog comparator, easy interface to most 8-bit microprocessors via standard control signals (START, EOC, OE, ALE), low power dissipation of approximately 15 mW, and ±½ LSB and ±1 LSB linearity grades. The dual-supply topology (VCC analog and VDD digital) reduces digital switching noise coupling into the analog conversion path. The ADC0809 uses CMOS switching logic and an internal ladder-network DAC, with a successive-approximation register clocked by an external RC or external clock. Conversion completes in approximately 100 µs, and the EOC (End of Conversion) output signals completion to the host processor. Its TTL-compatible bus interface enables direct connection to 8080, 8085, Z80, and similar legacy microprocessor buses without external glue logic. Typical applications include data-acquisition front-ends, process-control instrumentation, industrial PLC analog input modules, panel-meter and digital-multimeter designs, and legacy 8-bit microcontroller-based sensor interfaces. The wide analog input span (0 V to VREF) and 8-channel multiplexer make it ideal for reading multiple slow-changing sensors with a single ADC resource. When using this device, observe the dual-supply decoupling practice - place 0.1 µF ceramic capacitors close to both VCC (analog) and VDD (digital) pins, and a 10 µF tantalum bulk capacitor on each rail. Use the address-latch enable (ALE) to qualify channel selection, and gate the output enable (OE) before reading the data bus to avoid bus contention. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.
ADC081000CIYB - 8-Bit 1 GSPS ADC, 128-HLQFP | Texas Instruments
The Texas Instruments ADC081000CIYB is a high-performance, low-power 8-bit analog-to-digital converter that digitizes signals at sampling rates up to 1 GSPS (Giga-Samples Per Second). The device uses a folding and interpolating architecture with an internal sample-and-hold amplifier and an internal reference, packaged in a 128-pin thermally-enhanced HLQFP (20 mm x 20 mm) with an exposed die-attach pad. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts a continuous-time analog voltage or current into a discrete digital code. The ADC081000 sits in the high-speed pipeline / folding-and-interpolating converter family, which combines pipelined sub-ranges with analog interpolation stages. This hierarchy positions it within power-management-adjacent data-conversion ICs, frequently co-designed with high-performance DACs in transmit/receive signal chains, oscilloscopes, and digital sampling oscilloscope front ends. Key features of the ADC081000 include 7.0 effective bits at 500 MHz input (typical), a 1.4 GHz full-power analog input bandwidth, low latency suitable for real-time systems, and selectable LVDS or DDR CMOS output formats that ease interface to Xilinx and Altera FPGAs. The internal reference eliminates external reference noise injection, while the differential PECL/LVDS-compatible clock input supports sub-picosecond jitter generation when fed from a clean source. Power dissipation is approximately 1.4 W at 1 GSPS from a single 1.9 V analog supply plus 1.9 V digital supply. The folding/interpolating topology partitions the 8-bit conversion into coarse and fine sub-conversions, then uses analog interpolation to resolve the fine bits. This architecture avoids the latency typical of long pipelined stages while still achieving multi-hundred-MHz sample rates, making the ADC081000 well suited to time-domain instrumentation. The exposed-pad HLQFP provides a thermal resistance around 18 C/W junction-to-case, supporting 1 GSPS sustained operation with proper PCB thermal relief. Typical applications include digital oscilloscopes, spectrum analyzer IF digitizers, radar IF sampling, high-end test-and-measurement equipment, and digital pre-distortion feedback loops for wireless infrastructure. Its 1 GSPS rate aligns naturally with 500 MHz analog front ends needed in pulsed-RF instrumentation and optical sampling front-ends. When designing with this part, place the exposed-pad copper pour on at least four inner PCB layers stitched by a 4 x 4 thermal via array to keep junction temperature below 110 C. Use differential clock routing with 100 ohm controlled impedance and length-match data lanes within ±20 ps to avoid inter-symbol jitter; a stable, low-jitter clock source such as TI's LMK04800 clock conditioner is recommended. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ADC08131CIWM - 8-Bit Serial I/O ADC with Mux & Vref | TI
The Texas Instruments ADC08131CIWM is an 8-bit high-speed successive-approximation analog-to-digital converter with serial MICROWIRE-compatible I/O, an integrated 2-channel analog multiplexer, on-chip voltage reference, and track-and-hold, housed in a 14-pin SOIC Wide (SOIC W) package. It operates from a single 4.5 V to 6.3 V analog supply and draws only a few milliwatts, making it a self-contained data-acquisition front end for cost-sensitive designs. An SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of data converter that uses a comparator, a DAC, and a successive-approximation register to converge on the input voltage in N clock cycles for an N-bit code. SAR ADCs occupy the middle of the converter hierarchy: slower than flash ADCs but faster than integrating ADCs, with zero pipeline latency and excellent DC accuracy. They are the dominant choice for multiplexed multi-channel sampling at moderate speeds, sitting between delta-sigma ADCs (slower, higher resolution) and pipeline ADCs (faster, higher power) within the broader data-converter / signal-chain / power-management IC taxonomy. Key specifications include 8-bit resolution, a serial MICROWIRE/QSPI/SPI-compatible interface, an internal 2.048 V or 5 V bandgap-style reference, a 2-input analog multiplexer, differential track-and-hold, and guaranteed operation across the full -40 C to +85 C industrial temperature range. The IWM suffix denotes the wide-body SOIC-14 (PDSO14) package for improved thermal performance and easier hand-soldering versus the narrow-body SO-14. The architecture combines a charge-redistribution DAC with a successive-approximation register clocked by an external serial clock, producing deterministic N-cycle conversions with no pipeline delay. The on-chip reference eliminates the external reference cost and PCB area, while the 2-channel mux lets the part time-share one ADC across two sensors. Typical applications include portable instrumentation, panel meters, sensor signal conditioning, process-control analog front ends, point-of-sale terminals, and battery-powered handheld measurement tools. The wide SOIC-14 package also supports industrial controllers and HVAC sensor read-back. Design tip: When using the internal reference, bypass REF (pin 12) with a 1 uF tantalum plus 0.1 uF ceramic network directly at the pin to keep reference noise out of conversions. If two input channels are not required, tie VIN(-) to VIN(+) or to mid-scale for single-ended readings. This page synthesizes distributor pricing, drop-in same-package alternatives, and application-focused design notes that go beyond what the bare datasheet provides, enabling faster part selection and PCB reuse.
ADC08134CIWMX - 8-Bit 4-Ch SAR ADC, Serial I/O | Texas Instruments
The Texas Instruments ADC08134CIWMX is an 8-bit, 4-channel successive-approximation analog-to-digital converter with a high-speed serial (NSC MICROWIRE-compatible) interface, housed in a 14-pin SOIC wide-body (0.295-inch / 7.50 mm width) package supplied on Tape & Reel. As one of the ADC08131/ADC08134/ADC08138 family, it integrates an input multiplexer, voltage reference, and track/hold amplifier on-chip, simplifying mixed-signal designs by replacing a multi-IC front end with a single converter. Key features include 8-bit resolution, 4 analog input channels, a SAR conversion architecture optimized for low-power operation, and an on-chip reference. The serial interface reduces pin count and eases isolated or remote-sensor designs where galvanic isolation of the data path is required. The wide SOIC-14 package provides industry-standard land pattern compatibility with the rest of the ADC0813x family, which simplifies PCB layout reuse across single, dual, and multi-channel variants. The device belongs to the successive-approximation ADC category, a subtype of data-converter ICs used wherever low-latency, deterministic sampling of one or more analog inputs is required. SAR ADCs sit between sigma-delta ADCs (which offer higher resolution at lower speeds) and flash ADCs (highest speed, lowest resolution). ADC SARs deliver one conversion per acquisition cycle, making them well suited to multiplexed sensor monitoring where a microcontroller reads many channels in sequence. The part was originally introduced by National Semiconductor and is now served by Texas Instruments following acquisition of that business, with the datasheet titled "ADC08131/ADC08134/ADC08138 8-Bit High-Speed Serial I/O A/D Converters with Multiplexer Options, Voltage Reference, and Track/Hold Function." Industrial temperature grade and gull-wing SOIC terminal form make it suitable for through-hole-style reflow on standard SMT lines. Typical applications include industrial process-control analog front ends, multi-sensor data acquisition boards, battery monitoring multiplexed inputs, and remote transducer digitizer modules. The combination of on-chip reference and track/hold makes the ADC08134CIWMX attractive for cost-sensitive designs where a separate reference IC and sample-and-hold would otherwise add bill-of-materials cost. Design consideration: when migrating to or from this part, note that the family pinout differs by channel count - verify MUX outputs and serial timing against the target datasheet before reuse. The track/hold acquisition time and serial clock frequency together bound the per-channel throughput and must be sized so the multiplexer settling plus conversion plus acquisition fits the system sample budget. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ADC08138CIWM - 8-Bit 8-Ch Serial ADC w/ Vref, T/H | TI
The Texas Instruments ADC08138CIWM is an 8-bit, 8-input, successive-approximation-register (SAR) analog-to-digital converter with high-speed serial I/O, integrated multiplexer, internal voltage reference, and track-and-hold function, housed in a 20-pin SOIC Wide (7.5 mm body) package. It supports a single +5V analog supply and converts up to 8 analog input channels through an internal analog mux, with a maximum conversion time on the order of microseconds for high-speed data acquisition. An SAR (Successive Approximation Register) ADC is a type of analog-to-digital converter that uses a binary search algorithm to step through each bit of the output code, comparing the input voltage against an internal DAC at every clock cycle. SAR ADCs sit within the broader hierarchy of data converters -> ADCs -> SAR ADCs -> semiconductor ICs -> power management and signal chain. They are favored for applications requiring deterministic latency, low latency at moderate sample rates, and good DC accuracy with no pipeline delay, making them ideal for industrial control loops and multiplexed sensor scanning. Key features include 8 single-ended analog input channels, an on-chip sample-and-hold amplifier, an internal 2.5V bandgap voltage reference (with REFIN/REFOUT capability), an NSC MICROWIRE-compatible serial interface (also SPI-compatible), software-configurable analog input configuration, and a wide operating temperature range from -40C to +85C. The 20-SOIC Wide package offers industry-standard pin compatibility for legacy through-hole-style PCB footprints and is suitable for hand-soldered prototypes. The device implements a charge-redistribution SAR architecture with an internal clock and on-chip track-and-hold, eliminating the need for an external sample-and-hold circuit or external reference. The serial MICROWIRE interface reduces pin count and PCB routing complexity compared to parallel-output ADCs, while still allowing daisy-chaining of multiple converters on a single 3-wire bus for higher channel-count systems. Typical applications include multichannel data-acquisition systems, industrial process control and instrumentation, portable battery-powered measurement equipment, sensor array digitizers (temperature, pressure, strain), and embedded microprocessorcontroller analog front-ends. The wide SOIC package also simplifies hand prototyping and rework in low-volume or legacy designs. When designing with this device, ensure that the analog input impedance is low enough to settle the internal sample capacitor within the acquisition window. A 0.1uF bypass capacitor close to the VCC pin and a clean analog ground are essential to keep digital switching noise out of the analog input. The serial interface timing must respect the device's specified clock and frame constraints to avoid data corruption. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including verified pinout, parametric equivalents in the same 20-SOIC footprint, and best-practice PCB layout guidance.
ADC08138CIWMX - 8-Bit Serial I/O ADC, 8-Ch MUX, SOIC-20 | Texas Instruments
The Texas Instruments ADC08138CIWMX is an 8-bit high-speed serial I/O analog-to-digital converter (ADC) with configurable input multiplexer options, an internal voltage reference, and a track-and-hold front end, housed in a 20-pin SOIC (IWM) wide-body package supplied on tape and reel. It uses a successive-approximation-register (SAR) architecture and exposes an NSC MICROWIRE-compatible serial data interface, achieving the 8-bit conversion with a single 5 V analog supply while delivering the multiplexed-channel flexibility demanded by sensor-conditioning and industrial-control front ends. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a type of data converter that resolves an analog input to its digital code by binary-searching one bit per clock cycle against a precision reference voltage. SAR ADCs sit within the broader hierarchy of data-converter ICs (ADC/DAC -> ADC -> SAR ADC -> semiconductor). They are valued for low latency, deterministic conversion time, and lack of pipeline delay, which makes them the workhorse choice for multiplexed analog front ends, control-loop feedback, and instrumentation where a fresh sample per channel must be guaranteed every cycle. Key features include 8 input channels routed via a configurable analog multiplexer, a built-in 2.5 V bandgap reference (usable or bypassable), on-chip track-and-hold, NSC MICROWIRE-compatible serial I/O for glueless MCU/SPI-host connection, and single 5 V supply operation. The wide-body 20-SOIC (IWM) package gives 7.50 mm body width for robust through-hole-free board assembly while keeping the footprint compatible with standard 20-pin SOIC land patterns. Architecture depth: the SAR core is paired with a sample/hold that captures the input at the start of each conversion, eliminating the need for an external buffer on multiplexed channels that settle between conversions. The serial MICROWIRE interface shares clock and data lines that map cleanly onto SPI mode-0 peripherals on common microcontrollers, and the device supports daisy-chaining for multi-ADC signal chains. Typical applications include industrial process-control front ends, multi-sensor data acquisition boards, portable instrumentation, panel meters, battery monitoring, and microcontroller-based embedded systems that need 8-bit precision across several analog channels. The wide SOIC-20 footprint also supports hand-solderable prototypes and field-serviceable industrial PCBs. Design consideration: when laying out the ADC08138CIWMX, keep analog and digital ground returns separated and join them at a single point near the IC; the MICROWIRE clock edges must be kept clean (short traces, series resistor if reflections appear) because the serial interface is the only communication channel and any glitch will appear as a stuck-code. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet - giving you the cross-reference and layout guidance needed to substitute, source, and deploy the ADC08138CIWMX with confidence.
ADC08161CIWM - 8-Bit 500ns Sigma-Delta ADC w/ 2.5V Ref | TI
The Texas Instruments ADC08161CIWM is an 8-bit, 500 ns analog-to-digital converter with a built-in sample-and-hold function and a 2.5 V bandgap reference, housed in a 20-pin SOIC (7.50 mm) wide-body package. It offers 8-bit resolution, a single differential input, and a maximum conversion time of 500 ns, supporting sampling rates up to roughly 1.5 MS/s while dissipating only 100 mW of power. According to the manufacturer datasheet, the device uses a proprietary multi-step A/D conversion technique that employs a 2-bit voltage estimator to derive the two MSBs followed by two successive low-resolution approximations. An analog-to-digital converter (ADC) is a semiconductor device that translates continuous analog voltages into discrete digital codes, enabling microcontrollers, FPGAs, and DSPs to process real-world sensor signals. The ADC08161 belongs to the medium-speed successive-approximation / multi-step family, sitting hierarchically between general-purpose 8-bit SAR ADCs and high-resolution audio ADCs. Its integrated bandgap reference and S/H front-end simplify bill-of-materials by eliminating external reference and track-and-hold components. Key features include 500 ns typical conversion time, a 2.5 V internal reference (with external override capability), single +5 V single-supply operation, and parallel digital output. The wide-body SOIC-20 package supports legacy through-hole-style PCB footprints and provides adequate thermal dissipation for the 100 mW power budget at moderate ambient temperatures. The ADC08161 is built on a CMOS process that integrates the reference, S/H, and conversion logic on a single die. The multi-step architecture reduces the number of comparison cycles versus a pure SAR implementation, achieving 8-bit accuracy in roughly 14 clock cycles rather than the 8 cycles required by a flash converter. The digital outputs are tri-state capable, allowing multiple devices to share a common microprocessor data bus. Typical applications include process-control analog front ends, industrial instrumentation, portable data-logging, and legacy 8-bit sensor interfaces. Designers choose the ADC08161 when a fast 8-bit conversion with an integrated reference is needed without paying for higher-resolution parts. It is also frequently used in retrofit designs that must mate to existing 8-bit bus architectures. When designing with this device, allow adequate settling time for the S/H capacitor and place a 0.1 uF decoupling capacitor as close to the supply pin as possible. Pay attention to the reference pin bypass - the internal 2.5 V bandgap needs at least 1 uF of local capacitance to maintain low noise on the LSB transitions. This page synthesizes manufacturer specification data, distributor pricing as of 2026-10-12, drop-in same-package alternatives, and practical design notes not consolidated in a single location on the manufacturer datasheet.
ADC081S021CISD - 8-Bit 50-200 ksps SAR ADC | Texas Instruments
The Texas Instruments ADC081S021CISD is a low-power, single-channel CMOS 8-bit analog-to-digital converter (ADC) with a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, supporting sample rates from 50 ksps to 200 ksps. It is housed in a 6-pin WSON (2.2 mm x 2.5 mm) package with an exposed thermal pad, and operates from a single 2.7 V to 5.25 V supply. The converter uses a successive-approximation register (SAR) architecture with an internal track-and-hold circuit. An ADC (analog-to-digital converter) is a semiconductor device that converts a continuous analog voltage or current into a discrete digital code. SAR ADCs in particular perform conversion by binary-search approximation: a comparator and a switched capacitor DAC iteratively narrow the unknown input voltage against internal reference levels over N clock cycles for an N-bit result. SAR ADCs occupy the middle ground between flash converters (fastest, lowest resolution) and sigma-delta ADCs (slowest, highest resolution), and dominate applications requiring single-shot or burst-mode acquisition with deterministic latency. ADC081S021 belongs to the data-converter -> ADC -> SAR ADC -> 8-bit SAR product hierarchy in the TI portfolio. Key specifications include 8-bit resolution, 50-200 ksps sample rate, single 2.7-5.25 V supply, true-differential analog input (VIN+ / VIN-), SPI-compatible serial output, and an INL/DNL of 0.2 LSB / 0.1 LSB (typical). The supply is also used as the reference, simplifying external BOM. Typical power consumption is 1.3 mW at 3.6 V / 200 ksps and drops to <1 µW in shutdown. Operating temperature is -40 °C to +85 °C (industrial grade). The ADC081S021 architecture includes an input track-and-hold, a charge-redistribution DAC, a high-speed comparator, and a SAR control logic block. The SCLK, /CS, and DOUT pins implement a standard 3-wire SPI interface, allowing direct connection to most microcontrollers and DSPs without glue logic. The compact 6-WSON package makes the part especially attractive for space-constrained designs. Typical applications include portable/battery-powered instrumentation, consumer audio front ends, system monitoring and housekeeping ADCs, isolated sensor front ends, and industrial process-control monitoring. The wide 2.7 V to 5.25 V supply range allows direct connection to 3.3 V and 5 V rails. When designing with this ADC, bypass VA with a 0.1 µF ceramic capacitor placed as close as possible to the supply pin, and keep analog input traces short to minimize coupling. Because the supply doubles as the reference, any noise on VA directly converts to noise in the conversion result, so a clean, low-ripple rail is critical. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving procurement and design engineers a one-stop reference for sourcing and using the ADC081S021CISD.
ADC081S021CISDX - 8-Bit 50-200ksps SAR ADC | Texas Instruments
The Texas Instruments ADC081S021CISDX is a low-power, single-channel CMOS 8-bit analog-to-digital converter (ADC) with a high-speed SPI/SSI-compatible serial interface, supplied in a 6-pin WSON package. It supports a sample rate range of 50 ksps to 200 ksps and operates from a single 2.7V to 5.25V supply, drawing only 1.5 mW at 3V and 200 ksps. A successive-approximation register (SAR) ADC is a converter type that approaches the analog input with a binary-weighted DAC, completing each conversion in a fixed number of clock cycles. SAR ADCs are favored for low-latency, deterministic sampling in multiplexed data-acquisition, motor-control, and instrumentation systems. As a member of the wider family of ADCs (SAR -> ADC -> data converter -> mixed-signal IC), the ADC081S021 combines an internal track-and-hold with sub-1 mW operation to fit portable and space-constrained designs. Key features include a single-ended analog input with input range of 0V to VA (the supply), a serial data output with clock rates up to 4 MHz, and -40C to +85C industrial operating range. The 6-lead LLP/WSON package gives the part an extremely small PCB footprint for point-of-load digitization. The device integrates a precision reference input (using VA as the reference for full-scale), an internal oscillator, and a wide supply input. The CMOS process ensures low power dissipation while maintaining 8-bit linearity (max INL of 0.1172%) at the rated throughput. Typical applications include portable instrumentation, handheld meters, position and motor feedback, optical-sensor digitizers, and consumer-audio front-end monitoring. The wide supply range (2.7V to 5.25V) lets one part number work across battery and 5V-rail systems. When designing with this ADC, decouple VA with a 1uF ceramic capacitor placed within 1 cm of the pin, and route the analog input away from the serial clock to avoid digital coupling. The maximum 200 ksps sample rate requires the SCLK to remain above the minimum frequency of 1 MHz to avoid violating the conversion timing. This page combines Verified Web Data from TI, Mouser, DigiKey, and Octopart with hand-curated drop-in alternatives and design notes not found in the manufacturer datasheet, helping engineers select and source the ADC081S021CISDX with full context.
ADC081S051CIMFX/NOPB - 8-Bit 500kSPS SAR ADC, SOT-23-6 | TI
The Texas Instruments ADC081S051CIMFX/NOPB is a low-power, single-channel CMOS 8-bit analog-to-digital converter (ADC) that delivers sample rates from 200 ksps to 500 ksps in a tiny SOT-23-6 (6-pin SOT-23) package. The part uses a successive-approximation-register (SAR) architecture with an internal track-and-hold and supports SPI-, QSPI-, MICROWIRE-, and DSP-compatible serial interfaces, making it a flexible data-conversion building block for space-constrained designs. What is a SAR ADC? A successive-approximation-register ADC is a converter architecture that performs a binary search through an internal DAC to digitize an analog input one bit per clock cycle, balancing speed, accuracy, and power efficiency. SAR ADCs are the workhorse of medium-speed data acquisition (typically 100 kSPS to 1 MSPS) where pipelined ADCs are overkill and delta-sigma is too slow; they sit within the broader hierarchy of ADC -> data converter -> mixed-signal IC -> semiconductor. Key features include a single +2.7V to +5.25V supply rail, 1.6 mW typical power consumption at +3.6V and 8.5 mW at +5.25V, and straight-binary serial output. The wide supply range lets designers share the ADC supply with both 3.3V digital and 5V analog rails, simplifying power-tree design. Per the TI datasheet, the converter is fully specified across 200 ksps to 500 ksps - so unlike many competing 8-bit ADCs that are characterized at only one sample rate, AC and DC performance scales predictably across the full operating window. Typical applications include handheld battery-powered test equipment, sensor signal conditioning front-ends, industrial process monitoring modules, consumer audio level meters, automotive telemetry and infotainment subsystems, and any compact PCB where board area is at a premium. The SOT-23-6 footprint enables placement adjacent to sensors or potentiometers to keep analog traces short, which directly improves SNR by reducing input-capacitance induced errors and ground-loop pickup. When designing in this part, place a 0.1 uF decoupling capacitor as close as possible to the AVDD pin and keep the analog input trace short and guarded, because SAR ADC linearity degrades with clock-feedthrough and reference noise. For multi-rail designs, route the serial clock and DOUT away from switching regulator inductors to minimize substrate-coupled switching noise. The /CS line allows direct connection to many MCUs without external glue logic.