ADC/DAC
Products (2398)
MCP3301-CI/P - 13-Bit 100ksps Diff ADC with SPI | Microchip
The Microchip Technology MCP3301-CI/P is a 13-bit differential-input, low-power successive-approximation-register (SAR) analog-to-digital converter (ADC) with an industry-standard SPI serial interface, housed in an 8-pin PDIP through-hole package. The converter achieves up to 100 ksps sampling rate over a 4.5V to 5.5V single supply, with differential inputs that allow the full-scale input range to be referenced to a user-supplied voltage between 400 mV and 5V, yielding an input-referred resolution range between approximately 98 uV (at 0.4V VREF) and 1.22 mV (at 5V VREF). An SAR ADC is a successive-approximation-register analog-to-digital converter, the dominant topology for medium-speed, medium-resolution precision conversion in microcontroller-based systems. SAR ADCs sit within the broader ADC taxonomy (Flash, SAR, Delta-Sigma, Dual-Slope) and are preferred where deterministic latency, low power consumption, and ease of microcontroller interface are required - exactly the trade-off space the MCP3301 targets. Key features include true differential inputs with low integral nonlinearity, an external VREF input that scales input range dynamically, an SPI-compatible serial output that simplifies connection to virtually any microcontroller, and very low power consumption - typically 50 nA standby and 300 uA active. The 8-pin PDIP through-hole format supports easy prototyping, breadboarding, and legacy industrial designs where surface-mount is undesirable. Architecturally, the MCP3301 combines a differential input sample-and-hold front-end, a precision SAR core clocked from an internal oscillator, and a discrete SPI output shift register. The combination produces one conversion per chip-select cycle, deterministic sampling instant, and intrinsic single-cycle latency - ideal for multiplexed sensor arrays and digital control loops. Typical applications include battery-powered remote sensor nodes, industrial process control loops, portable instrumentation, multi-channel thermocouple or load-cell digitizers (paired with external multiplexers), and embedded data-acquisition front-ends for HVAC and energy-metering systems. When designing with this part, remember to include a 0.1 uF decoupling capacitor close to the AVDD pin and to keep CS low during a full 13-clock conversion - releasing CS mid-frame will corrupt the output. The external VREF source must be low-noise to fully benefit from the 13-bit resolution. This page synthesizes distributor pricing, drop-in PDIP alternatives, and practical design notes not found in the manufacturer datasheet alone.
MCP3426A0T-E/SN - 16-Bit Delta-Sigma ADC, Dual Ch, 15SPS | Microchip
The Microchip Technology MCP3426A0T-E/SN is a 16-bit, dual-channel, low-noise delta-sigma analog-to-digital converter with differential inputs, an on-board 2.048 V precision reference, and an I2C (two-wire) interface, supplied in an 8-pin SOIC package. According to the MCP3426/7/8 datasheet (Microchip document 22226A), the device provides a maximum output sample rate of 15 SPS at 16-bit resolution, an input range of ±2.048 V differentially, and operates from a single 2.7 V to 5.5 V supply. The 'A0' suffix denotes the fixed I2C address option and the 'T' indicates Tape and Reel packaging. A delta-sigma ADC (also written ΔΣ or sigma-delta ADC) is a type of oversampling converter that uses a modulator and digital filtering to achieve high resolution and excellent noise rejection, especially at low bandwidths. Within the broader signal-chain hierarchy, the MCP3426 belongs to the data-acquisition IC category -> analog-to-digital converter -> precision delta-sigma ADC -> low-power sensor ADC. Its on-chip reference and PGA eliminate most external components, simplifying designs that previously required a standalone ADC plus an external voltage reference. Key features include a programmable gain amplifier (PGA) with gains of 1, 2, 4, or 8, an internal 2.048 V reference with ±0.05% typical initial accuracy, 16-bit noise-free resolution, an I2C interface with user-configurable addresses, and an operating current of approximately 145 µA at 3 V during continuous conversion. The on-chip calibration register supports offset and gain self-calibration, which is useful for ratiometric measurements and sensor drift compensation. The architecture uses a second-order charge-balancing modulator and an SINC1 digital filter, which trades off settling time against noise. At the lowest data rate of 15 SPS the device achieves true 16-bit noise-free performance, while at the highest 240 SPS rate it switches to 12-bit effective resolution, making it well suited to multi-rate acquisition strategies. Typical applications include direct digitization of thermocouples, RTDs, bridge pressure sensors, strain gauges, and battery-cell voltage monitors. The differential ±2.048 V input range accommodates most low-voltage analog sensors without additional signal conditioning. When designing with the MCP3426, the I2C pull-up resistors must be sized correctly for the selected VDD and bus speed, and an external 0.1 µF decoupling capacitor placed close to the VDD pin is mandatory. Designers should also remember that the same address option 'A0' cannot co-exist on a single I2C bus with another A0 device; the A1, A2, or A3 address options must be selected for multi-channel systems. This page synthesizes distributor pricing, drop-in alternatives drawn from the same MCP3426 family, and practical design notes that go beyond the manufacturer datasheet's typical-application section.
MCP3905A-E/SS - 16-Bit Energy Metering IC | Microchip
The Microchip Technology MCP3905A-E/SS is a 16-bit energy-metering analog-to-digital converter IC with two delta-sigma ADCs, programmable gain up to 16, and an integrated voltage reference, packaged in a 24-pin SSOP. It is designed for single-phase energy measurement and supports the IEC 62053 international energy-metering specification. Its measurement inputs and frequency outputs support current and voltage sensing, active-power calculation, and meter calibration. An energy-metering ADC is a specialized data-converter IC that converts analog voltage and current signals into digital measurements while providing the accuracy, linearity, and calibration functions required by an electricity meter. The MCP3905A belongs to the ADC/DAC and power-measurement IC hierarchy, combining precision signal acquisition, internal reference generation, and energy-specific outputs in one device. The MCP3905A incorporates two 16-bit delta-sigma ADCs with programmable gain up to 16, supporting small-shunt measurements across a wide range of input currents. Its integrated voltage reference has ultra-low temperature drift of 15 ppm/°C, helping preserve measurement stability as the meter operates over changing ambient conditions. The device also provides active-real-power pulse output and instantaneous-power-related frequency information according to the manufacturer product description. Typical applications include residential single-phase electricity meters, utility metering modules, energy-monitoring systems, load-control equipment, and industrial power instrumentation. The device is useful when the design needs accurate voltage and current acquisition without relying solely on a general-purpose microcontroller ADC. Designers should carefully review the manufacturer datasheet for input ranges, pin functions, electrical limits, calibration procedures, and application-circuit details. External signal conditioning, filtering, current-shunt selection, voltage-divider design, and PCB layout strongly influence achievable meter accuracy. Pricing and availability should be confirmed against authorized distributors for the current purchasing date.
MCP3909ISS - 16-Bit Energy Metering AFE | Microchip
The Microchip Technology MCP3909ISS is a 16-bit energy-metering analog front-end IC with SPI interface, active-power pulse output, and single-phase metering support. The verified product data identifies a 4.5 V to 5.5 V supply range, 2.3 mA supply current, 390 kOhm input impedance, and 0.1% measurement error. It is supplied in a 24-SSOP package, making it suitable for compact single-phase energy-metering designs. An energy-metering AFE is a signal-chain IC that measures voltage and current channels and converts their analog inputs into digital information for energy calculation. In the broader hierarchy, an energy-metering IC belongs to the AFE and power-measurement semiconductor category, where accurate current and voltage acquisition supports utility meters, load monitoring, industrial energy management, and building-energy systems. The MCP3909 is designed around the IEC 62053 international metering specification and also references legacy IEC 1036, IEC 61036, and IEC 687 requirements in the verified data. The MCP3909 combines simultaneous serial access to ADC channels with multiplier output data and a frequency output proportional to average active real power. These features allow a host processor to retrieve measurements while the hardware provides a convenient active-power pulse indication. The 16-bit ADC architecture is intended for metering applications where measurement resolution and energy accuracy are more important than low-cost general-purpose signal acquisition. Typical uses include single-phase utility meters, residential energy monitors, industrial submeters, appliance energy measurement, and embedded power-monitoring equipment. In these systems, the AFE accepts voltage and current information, performs analog-to-digital conversion, and supplies measurement data through its serial interface. The active-power output can provide a low-frequency measurement signal for meter calibration, energy accumulation, or system monitoring. The principal design considerations are input filtering, calibration, reference stability, signal integrity, and correct implementation of the current and voltage channels. Designers should follow the manufacturer datasheet for the exact pin functions, recommended external components, analog input limits, digital interface timing, and calibration procedure. The verified web data confirms the 24-SSOP package and tube packaging information, while some detailed electrical limits and pin-level details require datasheet confirmation. This page combines verified manufacturer and distributor information with application guidance and design considerations. It also identifies the MCP3909 as a single-phase 24-SSOP energy-metering IC with SPI connectivity, active-power pulse output, a 16-bit ADC, and support for IEC 62053-oriented metering designs.
MCP4641-104E/ST - 100kΩ Dual 7-Bit I2C Digital Potentiometer
The Microchip Technology MCP4641-104E/ST is a 100 kΩ dual-channel, non-volatile 7-bit digital potentiometer with 129 wiper steps, EEPROM, and an I2C-compatible interface in a 14-pin TSSOP package. It operates from 2.7 V to 5.5 V and provides two independent digitally controlled resistor networks for programmable gain, filtering, voltage division, or resistance adjustment. A digital potentiometer is an active resistor-network IC whose wiper position is controlled through a digital interface instead of a mechanical shaft. The MCP4641 belongs to the digital potentiometer hierarchy, which combines resistor networks, wiper switches, EEPROM-backed configuration, and serial control into a compact surface-mount component. Its I2C interface allows a microcontroller or other host controller to change resistance settings while the circuit remains in operation. The MCP4641-104E/ST provides 129 wiper positions, corresponding to 7-bit resolution and a 128-resistor network per channel. Its nominal end-to-end resistance is 100 kΩ with a resistance tolerance of ±20%, according to the verified manufacturer and distributor data. Non-volatile EEPROM storage preserves the last programmed wiper configuration, reducing repeated setup after power cycling when the host supports the device’s memory functions. The MCP464X family is designed around an EEPROM-backed architecture and supports potentiometer or rheostat use. The device can therefore be placed in signal paths where software-adjustable attenuation, current-limits, threshold, or gain correction is useful. Its 14-TSSOP package is suitable for compact embedded control boards, although the narrow package requires careful PCB layout and pin-level soldering. Typical applications include audio volume control, sensor signal conditioning, programmable amplifier gain, industrial control interfaces, and portable equipment where a microcontroller needs to trim analog parameters digitally. The I2C bus allows centralized control of both channels, while EEPROM retention simplifies deterministic power-up behavior. For robust design, verify the I2C address and bus pull-up requirements in the manufacturer datasheet, confirm the electrical limits for the selected terminal and wiper configuration, and route analog resistor-network terminals away from high-current switching nodes. This page consolidates verified distributor specifications, practical application guidance, and available replacement information for engineers evaluating the MCP4641-104E/ST.
MCP4728-E/UN - 12-Bit Quad DAC I2C EEPROM MSOP-10 | Microchip
The Microchip Technology MCP4728-E/UN is a quad-channel, 12-bit voltage-output Digital-to-Analog Converter (DAC) with non-volatile EEPROM memory, housed in a 10-pin MSOP package. It supports I2C-compatible serial interface and provides rail-to-rail analog output swing through its on-board precision output amplifier, operating from a single 2.7 V to 5.5 V supply. What is a quad voltage-output DAC? A DAC (Digital-to-Analog Converter) translates a digital code into an analog voltage or current. A voltage-output DAC integrates an output amplifier that buffers the internal reference node, allowing the analog output to drive real-world loads directly. A quad DAC combines four independent converters on a single die, simplifying multi-channel designs such as waveform synthesis, programmable sensor excitation, and multi-point trim. As a sub-category of data converters, the quad DAC sits in the broader signal-chain hierarchy: data converter -> DAC -> voltage-output DAC -> multi-channel DAC -> power management/analog signal chain IC. Key features include four 12-bit resolution channels, an integrated 2.048 V internal reference with optional VDD reference, rail-to-rail output swing, individual EEPROM storage per channel for input code and configuration bits, and selectable I2C address bits (up to 8 slave addresses). The settling time to 1/2 LSB is typically 6 microseconds, and the device draws only 40 nA typical standby current with shutdown support per channel. The MSOP-10 footprint allows compact PCB placement suitable for portable and space-constrained applications. The MCP4728-E/UN uses a resistor-string architecture with on-chip EEPROM, allowing the DAC input codes, gain, power-down, and I2C address bits to be programmed to non-volatile memory. The high rail-to-rail output swing combined with low power consumption makes it suitable for battery-powered portable instruments where each channel can output independent analog voltages without external op-amps. Typical applications include digital audio volume and tone control, motor control reference setpoints, programmable sensor calibration, multi-channel instrumentation, and configurable system biasing. Designers also use it in waveform generators for arbitrary-function-signal reconstruction and as a low-power replacement for mechanical potentiometers in user-interface trimming. When designing with the MCP4728-E/UN, ensure the supply decoupling capacitors (typically 0.1 microfarad ceramic) are placed as close as possible to VDD and GND. Use the I2C bus pull-up resistors appropriate to the selected clock rate, and verify the SDA/SCL rise times against the I2C specification for the chosen VDD voltage. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes that complement the Microchip datasheet (DS22187E) with real-world procurement and selection guidance for engineers.
MM74C948N - 8-Bit ADC w/ 16-Ch MUX | Texas Instruments | DIP-40
The Texas Instruments MM74C948N is an 8-bit CMOS analog-to-digital converter with a built-in 16-channel analog input multiplexer, housed in a 40-pin PDIP (N) through-hole package. Operating from a single 5 V supply over an industrial -40C to +85C temperature range, it features a successive-approximation register (SAR) architecture with a maximum conversion time of 116 us, making it suitable for microprocessor-controlled data-acquisition systems. A SAR ADC (Successive-Approximation Register Analog-to-Digital Converter) is a type of data converter that converts an analog input voltage into a digital code by iteratively comparing the input against an internal DAC. The 8-bit SAR architecture is widely used in embedded and industrial designs because it offers deterministic conversion latency, low power consumption, and ease of interface to microprocessors - in the component taxonomy it sits between sigma-delta ADCs (higher resolution, slower) and flash ADCs (faster, lower resolution), with the MM74C948N targeting moderate-speed multi-channel acquisition. The MM74C948N combines an 8-bit ADC core with an analog input multiplexer (up to 16 single-ended analog inputs), eliminating the need for external analog switches in multi-sensor systems. It supports microprocessor-compatible interface logic and operates from a single 5 V supply, simplifying integration with 5 V CMOS logic families. Industrial-grade temperature tolerance (-40C to +85C) supports factory automation and process-control environments. Designed in CMOS technology, the MM74C948N achieves low power consumption compatible with battery-powered and portable instrumentation. The integrated 16-channel input mux eliminates the need for an external analog switch array, reducing BOM cost and PCB area while preserving the 8-bit conversion accuracy of the ADC core. Successive-approximation conversion delivers deterministic conversion timing, simplifying real-time software design. Typical applications include industrial process control and multi-sensor data acquisition, portable digital-panel meters, factory automation front-ends, environmental monitoring systems, and microprocessor-based instrumentation. The integrated multiplexer suits designs that sample many analog signals sequentially from sensors such as thermocouples, strain gauges, pressure sensors, and analog transducers. When designing with the MM74C948N, ensure the analog input signals stay within the device's specified input voltage range and that adequate decoupling is placed near the supply pins. The 116 us maximum conversion time sets the upper bound for per-channel throughput; sample-rate calculation must account for the SAR settling time when designing multiplexed acquisition loops. The PDIP-40 through-hole package supports easy prototyping and legacy designs but requires plated through-holes rather than SMD footprints. This page synthesizes distributor pricing from DigiKey/Mouser/Octopart, pin-compatible 40-pin PDIP drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet.
MM74C949N - 8-Bit Microprocessor-Compatible ADC, 28-PDIP | TI
The Texas Instruments MM74C949N is a monolithic CMOS 8-bit microprocessor-compatible analog-to-digital converter (ADC) with an on-chip 8-channel analog multiplexer, housed in a 28-pin plastic DIP (28-PDIP) package and operating from a single +5 V supply. Per the manufacturer datasheet, the device delivers a successive-approximation conversion with an 8-channel analog input MUX, providing a single-chip data-acquisition front end for microprocessor-based systems. Key headline parameters include 8-bit resolution, an 8-channel single-ended multiplexer, a 5 V supply requirement, and 116 microseconds typical total conversion time. The CMOS construction yields low power consumption suitable for battery-instrumented and industrial control systems. What is an 8-bit ADC with multiplexer? An analog-to-digital converter transforms a continuous analog voltage into a discrete digital code; an 8-bit converter provides 256 quantization levels (LSB = FS/256). Adding an integrated analog multiplexer allows one ADC to sequentially digitize several analog sources, replacing multiple single-channel converters and reducing both board area and cost. MM74C949N belongs to the category hierarchy: ADC -> data converter -> data acquisition IC -> mixed-signal semiconductor, and integrates a successive-approximation register (SAR) architecture with CMOS logic and a tri-state output latch for direct connection to 8-bit microprocessors. Differentiating features include built-in sample-and-hold, software-configurable channel selection, and a microprocessor-compatible control interface that simplifies handshaking. The 8-channel input MUX is software-addressable, while the tri-state output buffer allows the ADC to share a data bus with other peripherals. Internal reference and clock generation minimize external component count, and the CMOS process delivers low quiescent current draw, suiting battery-powered or remote instrumentation. Operating temperature spans -40 C to +85 C, supporting industrial and commercial environments. Architecture-wise, the device uses a successive-approximation register driven by an internal RC oscillator to perform a binary search against the analog input. The 8-channel analog MUX is constructed from CMOS transmission gates, and a sample-and-hold capacitor holds the input during conversion. The digital interface generates standard microprocessor read/write handshake signals so the part can connect directly to an 8-bit data bus without glue logic. Typical applications include industrial process-control data acquisition boards, portable battery-powered instrumentation, multiplexed sensor monitoring in HVAC and environmental systems, automotive sensor interface subsystems, and microprocessor-based measurement front-ends. The integrated MUX is particularly useful when more than one analog source (temperature, pressure, flow, level) must be digitized by a single MCU. When designing with MM74C949N, ensure the analog input remains within the supply rails and that input source impedance is low enough to charge the internal sample-and-hold capacitor within the acquisition window. Add 0.1 microfarad decoupling close to the supply pin, and provide anti-alias filtering on each MUX channel. This page synthesizes distributor pricing, drop-in alternative analysis, and design notes beyond the manufacturer datasheet.
MX574AJMWI/PR+W - 12-Bit 40kSPS SAR ADC, 28-SOIC | Maxim Integrated
The Analog Devices (formerly Maxim Integrated) MX574AJMWI/PR+W is an industry-standard 12-bit successive-approximation analog-to-digital converter (SAR ADC) with a single-ended 1-input configuration, housed in a 28-pin SOIC (0.295 inch / 7.5 mm width) surface-mount package and specified for commercial temperature grade operation. It delivers up to 40 ksps sampling rate on a parallel data interface and integrates an on-chip clock and voltage reference, eliminating the need for external timing components and saving board area. The converter combines high-speed conversion with low power consumption, a hallmark of the legacy MAX174 / MX574A / MX674A ADC family. A successive-approximation register ADC is a type of data converter that resolves a sampled analog input one bit at a time using an internal binary-search algorithm and a precision DAC. SAR ADCs occupy the middle ground between slow but accurate delta-sigma converters and fast but noisy flash converters, and are commonly used when both deterministic latency (one conversion per N clock cycles) and moderate-to-high accuracy (10 to 16 bits) are required at sampling rates from a few kSPS up to several MSPS. As an ADC, this part belongs to the broader hierarchy: data converter -> ADC -> SAR ADC -> integrated circuit -> semiconductor. Key features include 12-bit resolution, a single-ended input, a parallel output bus, and built-in reference. The on-chip reference removes an external precision component, while the built-in clock simplifies timing by allowing an external crystal or RC to drive the converter. The wide 28-SOIC gull-wing footprint supports standard surface-mount assembly and hand-reworkable prototypes, and the commercial temperature grade makes the part well suited to lab and indoor equipment rather than harsh-environment installations. Typical applications include broadband fixed-line access equipment, test and measurement instrumentation, and enterprise machine control systems. The combination of moderate sampling speed, integrated reference, and parallel readout makes the MX574A family a long-time workhorse in process-control front ends and rack-mounted data-acquisition boards. The PR+W suffix denotes a specific reel and pin-1 orientation variant of the same silicon die as the MX574AJMWI/PR+, and is fully pin-compatible with the rest of the MX574A 28-SOIC family. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that are not consolidated in the manufacturer datasheet itself, giving procurement and design engineers a single reference for evaluating, sourcing, and replacing this legacy Maxim ADC.
MX574ALCWI+ - 12-Bit Precision SAR ADC, 28-SOIC | Maxim Integrated
The Analog Devices (formerly Maxim Integrated) MX574ALCWI+ is a 12-bit, successive-approximation-register (SAR) analog-to-digital converter with 1 single-ended input, supplied in a 28-pin SOIC package. Per the Maxim datasheet, it is part of the industry-standard MAX174/MX574A/MX674A family of complete 12-bit ADCs that integrate a high-speed SAR core, on-chip clock, internal buried-zener voltage reference, and a precision DAC, delivering a complete ADC function in a single IC. Typical conversion time is approximately 25 us using the internal clock and the internal 10V reference, which simplifies board design versus discrete ADC implementations. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a type of data converter that performs a binary search across an internal DAC to determine the digital code of the input analog voltage. SAR ADCs sit in the broader hierarchy of data converters (ADC -> data converter -> data acquisition -> signal chain IC -> semiconductor) and are valued for high accuracy, low latency, deterministic latency, and lack of pipeline delay - making them ideal for multiplexed data-acquisition front ends and industrial instrumentation. The MX574A/MX674A series is a long-standing industry workhorse used in legacy designs that still require drop-in replacements today. Key features include 12-bit resolution with no missing codes, +/-1 LSB maximum integral nonlinearity (INL) on the A-grade part, an internal 10V buried-zener reference with low drift, and flexible input ranges of 0V to 10V, 0V to 20V, +/-5V, and +/-10V selected by pin strapping. The device supports both unipolar and bipolar true-bipolar analog input operation without external signal conditioning. Throughput is up to 40 ksps using the internal clock and an external start-conversion pulse, and the device operates from +/-12V to +/-15V (or +5V digital supply). The SOIC-28 package exposes the analog inputs, reference, and digital bus separately for clean PCB layout. Technically, the MX574ALCWI+ uses a charge-redistribution SAR architecture with a thin-film resistor-ladder DAC and laser-trimmed reference. The on-chip clock oscillator eliminates the need for an external crystal or RC timing network for most applications. Three-state outputs allow direct connection to an 8-bit, 12-bit, or 16-bit microprocessor data bus, supporting both 8-bit and 16-bit read modes. A separate -12V/-15V analog supply and +5V digital supply isolate noisy digital currents from the analog input path. Typical applications include industrial process control and data acquisition, multiplexed analog input modules, precision instrumentation, vibration and strain-gauge signal conditioning digitizers, and medical monitoring front ends. Its single-supply bipolar input ranges also suit legacy PLC analog I/O cards and SCADA systems that still use +/-10V signal standards. Replacement situations are common, as the part is widely second-sourced by ADI/PMI and has been continuously manufactured for over three decades. When designing with this part, ensure the analog and digital grounds are separated at the IC and joined only at one point to prevent digital ground-return currents from coupling into the analog input. A 10 uF bypass cap on the +5V digital supply and a 10 uF + 0.1 uF combination on the +/-15V analog supplies minimize noise. The reference output (REF OUT, pin 11) should be buffered if multiple loads are driven, since the internal reference cannot supply heavy current. This page synthesizes distributor pricing, same-brand SAR ADC alternatives in SOIC-28, drop-in recommendations, and practical design notes not found on a single distributor listing, complementing the manufacturer datasheet.
MX574ALCWI+T - 12-Bit 40kHz SAR ADC, 28-SOIC | Maxim Integrated
The Analog Devices (formerly Maxim Integrated) MX574ALCWI+T is an industry-standard, complete 12-bit successive-approximation analog-to-digital converter (SAR ADC) with an on-chip precision voltage reference and on-chip clock, housed in a 28-pin wide-body SOIC package. The +T suffix indicates tape-and-reel packaging for high-volume assembly. The part combines a 12-bit resolution with a maximum throughput of 40 ksps (typical conversion time ~25 us) and integrates the reference, clock, and SAR logic into a single die, eliminating the external support components that legacy discrete ADC designs required. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a type of ADC that performs a binary search through successive bits to convert an analog input to a digital code. SAR ADCs sit in the broader hierarchy of ADC architectures (SAR <-> Flash <-> Sigma-Delta <-> Pipeline) and trade off speed and latency for high DC accuracy and very low power consumption, making them well suited for multiplexed data-acquisition systems and industrial process control loops. The MX574A family was originally introduced as an industry-standard pin-compatible upgrade to the classic AD574A. Key features include ±5 V or ±12 V/±15 V analog input ranges (unipolar 0-10 V/0-20 V or bipolar ±5 V/±10 V), ±1 LSB maximum integral nonlinearity (INL), and a built-in +10.000 V buried-Zener reference with ±10 mV initial accuracy. The -L speed-grade variant (MX574ALCWI+T) operates up to 40 ksps; higher speed grades (MX574AJCWI/T, MX574AKCWI/T) are pin-compatible and offer 100 ksps. The on-chip clock eliminates external timing components, and a TRIM pin allows fine adjustment of the internal reference offset and gain. The MX574A's architecture uses a capacitive charge-redistribution DAC and a precision comparator, controlled by the on-chip SAR. Because the reference, comparator, and ladder network are all laser-trimmed at the wafer level, no external calibration is required at room temperature. The chip also offers a unipolar/bipolar input mode pin (BIPOLAR) and an input range pin (10VIN), letting the designer configure full-scale input voltage by pin strapping without external resistor networks. Typical applications include industrial process control front ends, medical instrumentation signal conditioning, data-acquisition (DAQ) cards, and precision transducer readout. The MX574ALCWI+T is also widely used as a replacement for the legacy AD574A in legacy designs where pin compatibility is mandatory. The wide SOIC-28 footprint and ±12 V analog supply tolerance make it tolerant of legacy ±15 V industrial rails. When designing with this device, the analog (VCC) and digital (VLOGIC) supply domains must be decoupled separately with 0.1 uF ceramic capacitors placed within 5 mm of the supply pins. The analog input pin must be driven from a low-impedance source (≤ 1 kohm) to settle within one aperture window; a series 100 ohm resistor followed by a 1 nF capacitor helps buffer transients from a mux. Avoid routing digital outputs near the analog input traces to minimize digital-to-analog crosstalk. The internal reference is trimmed for ±10 mV but drifts with temperature, so for sub-LSB applications external precision references are recommended. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MX574ALEWI+CDR - 12-Bit SAR ADC, 25us, 28-SOIC | Maxim
The Analog Devices / Maxim Integrated MX574ALEWI+CDR is an industry-standard, complete 12-bit successive-approximation analog-to-digital converter (SAR ADC) with 25us conversion time, on-chip clock and on-chip voltage reference, packaged in a 28-pin wide-body SOIC (EWI suffix, 300-mil SOP) for commercial temperature grade and shipped on Tape & Reel (CDR suffix). An SAR ADC is a type of data converter that uses a binary search algorithm and an internal capacitive DAC to digitize an analog input. Each conversion takes a fixed number of clock cycles, and the architecture delivers excellent linearity and no pipeline delay, which makes it well-suited to multiplexed data-acquisition front-ends, industrial instrumentation, and process control loops where predictable latency matters more than raw sample rate. Key features include 12-bit resolution, +/-1 LSB maximum linearity error, an internal buried-Zener reference trimmed for low drift, and a tri-state output buffer for direct connection to 8-bit or 16-bit microprocessor buses. The device accepts 0 to +10 V or 0 to +20 V unipolar analog input ranges (and +/-5 V or +/-10 V bipolar ranges when configured), and the parallel byte/word output interface simplifies integration with 8051, 68HC11, and DSP processors. The MX574A uses a precision laser-trimmed thin-film resistor ladder and an on-chip temperature-compensated bandgap reference; successive-approximation registers perform a binary search to produce the digital output. Internal timing is generated by an on-chip oscillator, removing the need for an external conversion clock, while the reference buffer can drive external loads up to 1.5 mA. Typical applications include process control front-ends, multi-channel data-acquisition boards, instrumentation and test equipment, digital panel meters, and any 8051/68HC11/DSP-based system that needs a complete, no-external-component ADC. The 25us conversion time places the part in the medium-speed SAR category - faster than integrating ADCs but slower than 1 MHz successive-approximation converters such as the AD574A. Design tip: keep the analog input bandwidth well below the device's aperture limit and place a small RC filter (typically 100 ohm + 1 nF) ahead of the analog input pin to suppress charge-injection transients from the internal DAC switching. Decouple VCC and VEE with 10 uF tantalum + 0.1 uF ceramic caps placed within 5 mm of the supply pins. This page synthesizes real distributor pricing, drop-in alternatives drawn from the same Maxim MX574A family, and practical design notes not found in the bare manufacturer datasheet.
MX574ALEWI+TCDR - 12-Bit 25µs SAR ADC, 28-SOIC | Maxim Integrated
The Analog Devices (formerly Maxim Integrated) MX574ALEWI+TCDR is an industry-standard, complete 12-bit successive-approximation analog-to-digital converter (SAR ADC) housed in a 28-pin wide-body SOIC (SOIC-28W) package. The MX574A family integrates a high-speed, low-power 12-bit ADC with an on-chip clock, an internal +10V precision buried-Zener voltage reference, and a digital interface that supports ±5V, 0–5V, 0–10V, and ±10V analog input ranges. Maximum conversion time is 25µs at 12 bits, and the part is designed for unipolar or bipolar operation through a single supply configuration. What is a SAR ADC? A successive-approximation-register ADC is a type of data converter that converts an analog input voltage into a digital code using a binary-search algorithm implemented with a comparator, a DAC, and a successive-approximation register. SAR ADCs occupy the sweet spot between slow integrating converters (which offer excellent linearity at low speed) and fast flash ADCs (which offer high speed but consume significant power and pin count). They deliver 8 to 18 bits of resolution at sample rates from a few hundred kSPS to a few MSPS, with deterministic latency, no pipeline delay, and very low power consumption - making them ideal for multiplexed data-acquisition systems, industrial process control, and instrumentation. Key features of the MX574ALEWI+TCDR include ±1 LSB max integral linearity error (A-grade), 25µs maximum conversion time, a built-in +10V reference with ±0.25% initial accuracy, 12-bit parallel and serial interface options, and three-state output buffers that allow direct connection to microprocessor data buses. The device operates from ±12V or ±15V analog supplies with a +5V digital supply, and its bipolar-input capability simplifies signal-conditioning front ends for industrial sensors and audio equipment. The MX574A architecture combines a precision thin-film resistor network, a CMOS comparator, a current-mode DAC, and a SAR register, all trimmed at the wafer level. This integration eliminates external trimming and allows designers to use the ADC immediately after power-up without calibration routines, which historically made the MX574A the de-facto industry-standard 12-bit ADC for both standalone and embedded data-acquisition boards. Typical applications include industrial process control, multiplexed data-acquisition front ends, signal isolation front ends paired with opto-isolators, precision measurement instrumentation, audio digitizers, and embedded board-level designs where +12V supplies are available and -48V telecom battery monitoring is required. When designing with this part, provide a clean +5V digital supply decoupled with 0.1µF and 10µF capacitors close to the supply pins. Use a separate analog ground plane for the input and reference sections, and route the 12-bit parallel bus away from the analog inputs to prevent digital coupling into the converter. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
MX574ALN+ - 12-Bit Industry-Standard ADC | Maxim Integrated
The Maxim Integrated MX574ALN+ is an industry-standard, complete 12-bit successive-approximation analog-to-digital converter (ADC) that combines high conversion speed, low power consumption, an on-chip clock, and an internal voltage reference in a single 28-pin PDIP (DIP-28) through-hole package. It accepts a unipolar analog input range of 0V to 10V or 0V to 20V (and bipolar ±5V or ±10V with proper drive), achieves 12-bit resolution with no missing codes over the commercial temperature range, and uses a high-speed successive-approximation architecture. Key headline specifications include a 40 µs (typ) maximum conversion time, ±5V or ±10V input ranges with input protection, an internal buried-Zener reference trimmed to ±0.3% (10V mode), and 1/2 LSB max integral nonlinearity. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples a continuous analog voltage and quantizes it into a discrete digital code, forming the bridge between real-world analog signals and digital processors. Successive-approximation ADCs (SAR ADCs) use a binary-search algorithm with an internal DAC and comparator to converge on the input voltage one bit per clock cycle; they sit in the broader taxonomy of ADC architectures alongside flash, sigma-delta, pipeline, and integrating ADCs, and are prized for a favorable balance of speed, resolution, and low power consumption. The MX574A belongs to the industry-standard ADC family that has been second-sourced for decades, making it a common legacy building block in industrial, instrumentation, and process-control designs. Key features of the MX574ALN+ include a built-in track-and-hold amplifier, three-state output buffers that interface directly to an 8-/12- or 16-bit microprocessor data bus, and an internal 10V buried-Zener reference that is laser-trimmed to within ±0.3% maximum error. The converter is specified for the commercial temperature range of 0°C to +70°C, operates from standard ±15V and +5V supplies, and provides digital control inputs for conversion start and byte-multiplexed read cycles. Its parallel 12-bit output simplifies integration with legacy 8-bit microprocessors such as the 8080, 6800, and Z80 family, where two successive read cycles deliver the 8 LSBs and 4 MSBs. Typical applications include process-control instrumentation, data-acquisition front ends, precision sensor signal conditioning, panel meters and digital voltmeters, medical instrumentation front ends, and legacy industrial automation systems. The wide ±15V-tolerant analog input stage and robust 12-bit linearity make it a strong fit for digitizing transducer outputs (load cells, pressure transducers, thermocouple amplifiers) where 1 LSB resolution at 10V full scale (2.44 mV) is acceptable and design reuse matters. When designing with this device, observe the analog input current requirements during acquisition; an external buffer amplifier or proper RC network may be required for high-impedance sources. The internal reference pin (REF) should be decoupled with a 10 µF tantalum and 0.1 µF ceramic pair per the manufacturer application note to minimize reference-induced conversion noise. Note that the MX574A is a long-running legacy part - confirm long-term availability before committing to new high-volume designs.
MX574ALP+T - 12-Bit SAR ADC, 28-PLCC | Maxim Integrated
The Maxim Integrated MX574ALP+T (now under Analog Devices) is an industry-standard 12-bit successive-approximation analog-to-digital converter (SAR ADC) that combines high conversion speed, low power consumption, and a complete on-chip interface including clock and buried-zener voltage reference, housed in a 28-pin PLCC (11.51 x 11.51 mm) package with J-bend terminals. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a sampling data converter that uses a binary-search algorithm to converge on the input voltage. SAR ADCs sit in the broader hierarchy of ADC architectures (SAR -> data converter -> ADC -> signal chain IC -> semiconductor) and are favored for precision instrumentation because they deliver medium-to-high resolution (12-18 bits) at medium speeds (100 kSPS to few MSPS) without the latency of delta-sigma converters or the glitch of flash converters. The MX574A belongs to the industry-standard "574/674/174" ADC family, originally industry workhorses for industrial process control. Key features include 12-bit resolution with no missing codes over the full temperature range, a precision 10 ppm/°C (max) low-drift internal reference, a track/hold amplifier front end, and a parallel/word-wide digital interface for fast microprocessor read cycles. The device accepts 0 to +10 V or 0 to +20 V unipolar or ±5 V, ±10 V bipolar analog input ranges depending on strap configuration, and runs from ±12 V / +5 V analog supplies. Conversion time is on the order of 25 µs maximum, supporting data-acquisition rates up to ~40 kSPS at full 12-bit accuracy. Typical applications include high-accuracy process-control front ends, digital-signal-processing front ends, high-speed data-acquisition boards, and electro-mechanical test systems. The wide input voltage ranges make the MX574ALP+T drop-in usable in legacy industrial backplanes built around +10 V signal conditioning. When designing with this ADC, ensure the AV+/AV- analog supplies are well decoupled and that the impedance driving the analog input is well below the source-impedance budget to avoid gain errors. The internal reference can be overridden by an external reference if drift budgeting demands it. This page synthesizes live distributor pricing, parametric drop-in alternatives, and practical design notes that complement the manufacturer datasheet for engineers evaluating the MX574ALP+T.
MX674AKN+ - 12-Bit 15us SAR ADC, 28-DIP | Maxim Integrated
The Maxim Integrated MX674AKN+ is a 12-bit, industry-standard, complete analog-to-digital converter (ADC) that combines high speed, low power consumption, and on-chip clock and voltage reference in a 28-pin PDIP (0.600 inch, 15.24 mm) through-hole package. It uses a successive-approximation-register (SAR) architecture with a single-ended analog input and provides parallel digital output, with a maximum conversion time of approximately 15 microseconds per sample. The device operates from +/-11.4 V to +/-16.5 V analog supplies with a +5 V digital supply and supports both external and internal voltage reference modes. A SAR ADC is a class of data converter that performs a binary search through an internal sample-and-hold and comparator network to digitize an analog input in N clock cycles for an N-bit output. SAR ADCs sit in the broader hierarchy of analog-to-digital converters -> data converters -> data acquisition ICs -> signal chain ICs -> power management and signal chain semiconductors. SAR converters are valued for deterministic latency, no pipeline delay, and excellent DC accuracy, making them a standard choice for industrial process control, instrumentation, and test equipment where one-shot or low-rate multi-channel sampling is required. The MX674A family's BiCMOS construction reduces power dissipation relative to earlier bipolar-only designs such as the AD574A, while preserving full compatibility with the industry-standard AD574A pinout and timing. Internal reference trim eliminates the need for an external reference in many systems, and an external reference input allows designers to ratio-metric applications or to drive absolute-accuracy applications from a precision external source. The 28-PDIP package simplifies prototyping and breadboarding on through-hole boards, while the part's +/-15 V analog range interfaces directly with typical industrial +/-10 V or 0-10 V signal conditioning outputs. Typical applications include industrial process control, automated test equipment, data loggers, medical instrumentation front ends, and precision sensor signal chains. The wide analog supply range (+/-11.4 V to +/-16.5 V) supports +/-12 V and +/-15 V system rails common in factory automation and laboratory instruments. The parallel digital output drives standard microprocessors and microcontrollers without requiring glue logic. When designing with this part, place the analog and digital grounds on a single low-impedance plane and connect them at one point near the ADC to avoid digital switching noise coupling into the analog input. The internal reference settles within the conversion window when the S/H capacitor is properly bypassed; for highest DC accuracy applications, use an external precision reference such as the MAX6350. The device's commercial 0C to +70C operating range limits it to non-automotive, indoor applications. This page synthesizes distributor pricing, drop-in alternatives within the same 28-PDIP footprint, and practical design notes not found in the manufacturer datasheet. Engineers evaluating the MX674AKN+ for a redesign or new design should treat the alternative list as a pin-compatible replacement matrix rather than a functional-equivalence matrix; cross-package alternatives require PCB rework.
MX674ALCWI+ - 12-Bit SAR ADC, 28-SOIC | Maxim Integrated
The Maxim Integrated MX674ALCWI+ (now branded Analog Devices / Maxim Integrated) is an industry-standard, complete 12-bit successive-approximation analog-to-digital converter (SAR ADC) with 1 input channel, internal clock, and internal 10V voltage reference, housed in a 28-pin SOIC (Wide, 0.300") package. Per the Maxim datasheet family, the MAX174/MX574A/MX674A ADC family supports a maximum conversion time of 25 us and operates from +/-12V or +5V analog supplies, depending on the temperature grade, making it a drop-in modern replacement for the long-discontinued AD574A. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a precision ADC architecture that uses an internal DAC and comparator to binary-search the input voltage over N clock cycles (where N is the resolution in bits). For a 12-bit SAR ADC like the MX674ALCWI+, each conversion completes in 12 clock cycles plus settling time, providing a deterministic acquisition window, low latency, and no pipeline delay. SAR ADCs sit in the hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor, and are favored over delta-sigma ADCs in multiplexed data-acquisition systems, industrial control loops, and instrumentation where single-shot accuracy and fast response matter more than maximum noise resolution. Key features of the MX674ALCWI+ include 12-bit resolution with +/-1 LSB maximum linearity error (L grade), bipolar input range of +/-5V or +/-10V (selected by pin strapping), single +5V digital supply compatibility, a 25 us maximum conversion time, and an internal buried-zener reference trimmed to 10.00V. The device also provides three-state output buffers for direct connection to an 8-bit or 16-bit microprocessor data bus, plus standard control lines (CS, R/C, CE, AO) compatible with the AD574A and AD674A pinout. The MX674ALCWI+ is built on a bipolar/CMOS (BiCMOS) process that allows the analog input section to operate from +/-12V or +/-15V supplies while the digital section runs from a single +5V rail. This mixed-voltage architecture eliminates the level shifters that would otherwise be required when interfacing to a 5V microcontroller or DSP. The internal reference is a buried-zener design with low drift and low noise, typically 10 ppm/C, enabling uncalibrated 12-bit accuracy over the commercial 0C to +70C temperature range. Typical applications include industrial process-control data acquisition boards, multi-channel 4-20 mA loop digitization, precision instrumentation front-ends, medical patient-monitoring equipment, and legacy replacement designs for AD574A/AD674A sockets in defense, aerospace, and test-and-measurement systems. When designing with the MX674ALCWI+, the analog input must be driven from a low-impedance source (typically an op-amp buffer such as the AD845 or OP-27) to keep the input settling time below the acquisition window. Decoupling with 0.1 uF ceramic + 10 uF tantalum on each supply pin is mandatory, and unused digital input pins should not be left floating - tie them to logic-high or logic-low as specified in the datasheet. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes that go beyond the manufacturer datasheet, helping engineers evaluate the MX674ALCWI+ for new designs and legacy AD574A socket replacements.
MX674ALCWI+T - 12-Bit SAR ADC with Ref, 28-SOIC | Maxim Integrated
The Maxim Integrated MX674ALCWI+T is a complete 12-bit successive-approximation analog-to-digital converter (SAR ADC) that integrates the reference, clock, and three-state output buffers on-chip, housed in a 28-pin wide-body SOIC package. It operates from +5 V and +/-15 V analog supplies (or single +5 V supply), samples at up to 66 ksps, and provides 12-bit parallel output with 8- and 16-bit microprocessor interface compatibility. What is a SAR ADC? A successive-approximation analog-to-digital converter is a type of ADC that uses a binary-search algorithm against an internal DAC to resolve an analog input into a digital code, balancing conversion speed with moderate-to-high resolution. SAR ADCs sit in the hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. They are favored over flash converters for moderate resolution (12-16 bits) where lower power, smaller die, and high noise immunity matter more than raw GHz sampling. Key features include an on-chip buried-Zener reference for long-term stability, 12-bit linearity with +/-1 LSB maximum INL and DNL, three-state output buffers that simplify bus sharing, and a choice of input ranges (0-10 V, +/-5 V, +/-10 V, 0-20 V) selectable via pin strapping. The device also provides a status output (STS) that simplifies polling or interrupt-driven service routines to a host processor. Typical applications include industrial process-control front-ends, instrumentation data acquisition, motor-control current/voltage sensing, medical patient-monitoring front-ends, and precision transducer signal conditioning. Designers choose the MX674 over 16-bit ADCs when 12-bit dynamic range is acceptable and lower cost / faster conversion is required. The wide SOIC-28 footprint simplifies hand-prototyping and rework compared to small-outline QFN alternatives. A practical design tip: reserve adequate digital-to-analog ground separation because the internal clock transitions can inject noise into the analog input. Use a single star ground or a solid analog/digital split to preserve 12-bit noise floor performance.
MX7575KP+ - 8-Bit 5µs ADC with Track/Hold, PLCC-20 | Maxim
The Maxim Integrated (now Analog Devices) MX7575KP+ is a CMOS, microprocessor-compatible, 8-bit successive-approximation analog-to-digital converter (ADC) with 5µs/10µs conversion time, integrated on-chip track/hold, and a 20-pin PLCC package. It accepts a 0V to 2.46V unipolar analog input range, supports input bandwidth up to 50 kHz (386 mV/µs slew rate), and includes a parallel microprocessor interface for direct connection to 8-bit data buses. An 8-bit successive-approximation ADC is a type of data converter that uses a binary-search algorithm against an internal precision DAC to resolve an analog input into a digital code, balancing speed, resolution, and cost. Successive-approximation ADCs sit in the broader hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. They are favored for general-purpose digitisation where 8-16 bit resolution at medium sampling rates is sufficient, dominating applications like process control, instrumentation, and embedded sensor reading. Key features include 5µs typical conversion time (10µs maximum), on-chip track/hold for full-scale signals up to 50 kHz, a unipolar 0-2.46V analog input range, +5V single-supply operation, and a parallel µP-compatible interface that maps directly onto bus architectures. Internal reference and clock options simplify external bill-of-materials, and the CMOS construction keeps power consumption moderate for a 5V ADC. The MX7575KP+ operates from a single +5V supply and is specified over the commercial 0°C to +70°C temperature range. The built-in track/hold removes the need for an external sample-and-hold amplifier in most applications, reducing system cost and board area. Conversion initiation can be controlled via the WR/RD inputs, allowing the host CPU to read conversion results without an external latch. Typical applications include process control and industrial data acquisition, digital-panel meters, portable instrumentation, embedded microcontrollers requiring an analog channel, test equipment front-ends, and simple closed-loop control systems. The 5µs conversion time suits loop bandwidths in the kilohertz range, comfortably digitising 4-20 mA-derived signals after scaling. The MX7575KP+ is the PLCC-20, 0°C-to-+70°C commercial-grade variant of the MX7575 family; it is differentiated from the MX7575JP+ (CERDIP package), the MX7575KP-T (tape-and-reel packaging code), and the MX7575JN by package and operating grade. Designers should ensure a clean analog ground plane and a 0.1µF supply bypass capacitor close to the supply pin to avoid conversions errors from digital switching noise. This page synthesizes distributor pricing, same-family drop-in variants, and PLCC-20 compatible alternatives not aggregated elsewhere, giving sourcing and engineering teams a single reference for evaluating the MX7575KP+ for new designs or legacy second-source support.
MX7575KP+T - 8-Bit 200kSPS SAR ADC w/ T/H | Maxim Integrated
The Analog Devices / Maxim Integrated MX7575KP+T is a 8-bit, 200 kSPS successive-approximation analog-to-digital converter with an on-chip track-and-hold amplifier, packaged in a 20-pin PLCC (LCC-20) carrier suitable for tape-and-reel delivery. It converts a 0 V to +2.46 V unipolar analog input range and interfaces to microprocessors through a standard 8-bit parallel data bus with CS and RD control lines. An 8-bit successive-approximation ADC (SAR ADC) is a type of data converter that uses a binary-search algorithm against an internal precision DAC to determine each code in N conversion clock cycles. SAR converters are valued for deterministic latency, single-shot accuracy, and low power consumption, and they sit within the broader hierarchy of analog-to-digital converter -> data converter -> signal chain IC -> mixed-signal semiconductor. The MX7575 family sits at the low-resolution, high-speed end of that hierarchy. Key features include a 5 us conversion time (compatible with the slower 10 us MX7576), a track-and-hold capable of acquiring full-scale signals up to 50 kHz (386 mV/us slew rate), a microprocessor-compatible parallel interface, single +5 V supply operation from 4.75 V to 5.25 V, and commercial 0 C to +70 C temperature grade. Internal reference and clock options are integrated to minimise external parts count. The MX7575 uses a standard CMOS SAR core with an input track-and-hold that allows full-scale dynamic signals to be converted without an external sample-and-hold. The 8-bit parallel output simplifies hookup to common 8-bit microcontrollers and DSPs of its era, and the part is offered in PLCC-20 and PDIP-20 packages. Power dissipation is modest at approximately 25 mW active, with an explicit power-down mode that drops quiescent draw for battery-instrument applications. Typical applications include portable digital instrumentation, process-control front ends, embedded data-acquisition boards, multiplexed data-logging systems, and replacement of legacy 8-bit ADC slots in industrial controllers. The PLCC-20 footprint and parallel bus make it a drop-in candidate when modernising legacy designs that originally specified the Maxim MX7575 or pin-equivalent AD7575. When designing with this part, place a 0.1 uF decoupling capacitor close to VDD, observe the 5 us acquisition-aperture timing relative to RD/CS, and ensure the analog input stays within 0 V to VREF to avoid code saturation. The PLCC-20 socket or footprint allows hand-rework-friendly prototyping, but production runs are typically tape-and-reel for surface-mount assembly. This page synthesises distributor pricing, same-family Maxim drop-in alternatives, and practical design notes that complement the manufacturer datasheet. It is intended for engineers evaluating the MX7575KP+T for new designs, obsolescence re-sourcing, or as a pin-compatible swap where the AD7575 was originally specified.
MX7575SQ/883B - 8-Bit 5µs SAR ADC, MIL-883B | Maxim Integrated
The Maxim Integrated MX7575SQ/883B is an 8-bit, microprocessor-compatible, successive-approximation analog-to-digital converter (SAR ADC) with a 5 µs conversion time, housed in an 18-pin CDIP (ceramic DIP) package and qualified to MIL-STD-883B for military and aerospace applications. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a type of data converter that uses a binary-search algorithm against an internal precision DAC to determine each bit of the output word in N clock cycles for an N-bit converter. SAR ADCs occupy the middle ground between flash ADCs (fastest, lowest resolution) and sigma-delta ADCs (highest resolution, slowest); they are the workhorse converter for 8-to-16-bit industrial, instrumentation, and process-control sampling because they deliver a single conversion on demand with deterministic latency and modest power consumption. Key features of the MX7575SQ/883B include a single +5 V supply operation, parallel data output for direct µP bus connection, a built-in track-and-hold, and a ratiometric reference input that lets the user scale full-scale range to any span between 0 V and VREF. The /883B suffix indicates the part is processed to MIL-STD-883B, including burn-in and extended temperature screening, making it suitable for avionics, missile guidance, and ruggedized industrial systems. Architecturally, the MX7575 family combines a CMOS successive-approximation register, a precision thin-film DAC ladder, and a CMOS comparator on a single die. The 5 µs typical conversion time at 8 bits resolution corresponds to roughly 200 kSPS sampling capability, which is sufficient for control-loop digitizing, vibration monitoring, and multiplexed data acquisition. Typical applications include military/aerospace data acquisition systems, industrial process-control analog input modules, multiplexed 4-to-16 channel scanning digitizers, vibration and acoustic monitoring front-ends, and legacy µP-based instrumentation where parallel-output ADCs simplify interface glue logic. The ceramic DIP package and MIL-STD-883B screening also make it a preferred choice for new designs that must trace to MIL-PRF-38535 qualified manufacturing lines. When designing with this converter, route the analog input trace as a guard-ring-protected microstrip, decouple VDD and VREF with 10 µF tantalum in parallel with 100 nF ceramic at the package pins, and drive /CS and the conversion-start logic with a clean digital supply. The reference pin must be bypassed with at least 1 µF to ground. This page synthesizes distributor availability (5100 units in stock per icDirectory as of 2026-10-15), MIL-STD-883B qualification notes, and same-package Maxim cross-references that you will not find aggregated in the manufacturer datasheet PDF alone.
MX7575TQ/883B - 8-Bit 5µs SAR ADC, Military, 18-CDIP | Maxim
The Maxim Integrated MX7575TQ/883B is a high-speed, microprocessor-compatible, 8-bit analog-to-digital converter (ADC) housed in an 18-pin ceramic DIP (CDIP) package and qualified to MIL-STD-883B. According to the Maxim datasheet, the device performs successive-approximation conversions in 5µs (typical) or 10µs (max), and integrates an on-chip track-and-hold that allows full-scale input signals up to 50 kHz (386 mV/µs slew rate) to be digitized without an external SHA. What is an 8-bit SAR ADC? A successive-approximation register ADC is a type of Nyquist-rate data converter that walks an internal DAC one bit per clock cycle to converge on the input voltage, producing a fixed-latency, deterministic conversion in N clock cycles for an N-bit result. SAR ADCs sit in the hierarchy: ADC -> data converter -> data acquisition IC -> signal chain -> mixed-signal semiconductor. The 8-bit resolution places the MX7575 in the precision-but-not-high-accuracy tier, well suited to digital-panel-meter replacement, instrumentation front-ends, and embedded microprocessor analog input boards. Key features include 8-bit resolution, single +5 V supply operation, parallel output interface for direct µP bus attachment, and a track-and-hold on the analog input. The /883B suffix indicates compliance with MIL-STD-883 Test Method 5008 for Class B screening (burn-in, temperature cycle, hermeticity), making the part suitable for military and aerospace programs that require flight-grade or ruggedized data converters. The architecture uses an internal 2.5 V bandgap reference and a charge-redistribution CDAC; the LSB weight is therefore (VREF / 256). External clock rates up to approximately 1.25 MHz yield the 5 µs typical conversion time advertised in the datasheet. The robust parallel interface reads the conversion result with a single CS/RD strobe, allowing easy glue-less connection to 8080/6800-style microprocessors. Typical applications include military avionics sensor digitizers, ruggedized process-control analog input modules, legacy replacement for AD7575 in flight systems, sonar and acoustic front-end sample-and-convert blocks, and instrumentation digitizers that demand a hermetic through-hole part for hi-rel assembly lines. Design tip: when migrating from the commercial MX7575 to the /883B version, the AC and DC parameters are unchanged - only the screening flow differs - so PCB layout, reference decoupling, and timing budgets are identical. Provide a clean +5 V analog supply and 100 nF decoupling on VDD and VREF pins. This page synthesizes current distributor pricing, /883B-specific screening context, drop-in equivalents and 18-CDIP PCB layout notes not found in the standalone Maxim datasheet.
MX7582K/D - 12-Bit 4-Channel SAR ADC Die | Maxim Integrated
The Maxim Integrated MX7582K/D is a calibrated, 12-bit, 4-channel successive-approximation analog-to-digital converter (ADC) supplied in bare die (DIE) form factor. It performs a complete conversion in 100 microseconds and includes an auto-zero cycle that reduces zero-scale error to typically below 100 microvolts. The /CS, RD, and WR inputs allow direct connection to 8-bit microprocessor buses without external glue logic, and the device maintains true 12-bit performance across the full commercial operating temperature range without external trims. The /K suffix indicates the commercial temperature grade (0C to +70C), and the /D suffix denotes the die-package option sold on waffle tray or in waffle pack. An ADC (analog-to-digital converter) is a data-acquisition component that converts real-world analog signals into discrete digital codes for processing by microcontrollers, DSPs, or FPGAs. Successive-approximation-register (SAR) ADCs use a binary-search algorithm with an internal DAC and comparator to resolve N bits in N clock cycles, trading conversion speed for low power consumption and high noise immunity. The MX7582K/D is part of Maxim Integrated's CMOS 12-bit SAR portfolio alongside the MX7572 and MX7672 series, sitting at the multi-channel end of the family. Key features include 4 single-ended analog input channels multiplexed into a single 12-bit SAR core, an internal clock and reference buffer, true bipolar input capability via external scaling, and a parallel microprocessor interface with /CS, RD, WR, and INT control. The die form factor allows hybrid and MCM (multi-chip module) integrators to place the converter directly on the substrate to minimize analog trace length and improve noise immunity.
MX7672K/D - 12-Bit 3µs SAR ADC, Die Form | Maxim Integrated
The Maxim Integrated (Analog Devices) MX7672K/D is a 12-bit, high-speed, BiCMOS successive-approximation analog-to-digital converter (ADC) supplied in unpackaged die form, performing a full conversion in as little as 3µs while consuming only 110 mW. The die-format /D suffix means the part is shipped as a bare die on a waffle pack or similar carrier for hybrid and MCM (multi-chip module) integration, rather than in a conventional plastic package. The device accepts a single analog input channel, uses an external -5 V reference, and includes a buffered reference input so one reference can drive multiple MX7672 ADCs simultaneously. The MX7672 is documented as a plug-in replacement for the AD7672, simplifying migration of legacy analog-to-digital subsystems onto Maxim/ADI silicon. An SAR ADC (successive-approximation register analog-to-digital converter) is a type of data converter that performs a binary search against the analog input using an internal DAC and comparator, producing one bit per clock cycle. SAR ADCs sit inside the broader hierarchy of analog-to-digital converters (ADC) -> data converters -> data acquisition ICs -> signal chain -> mixed-signal semiconductors. They are valued for their deterministic latency, low power, and excellent DC accuracy, making them a workhorse for industrial process control, instrumentation, and precision data-acquisition front ends. Key features of the MX7672 include 12-bit resolution with no missing codes, a 3µs typical conversion time (yielding roughly 308 kSPS throughput), an external -5 V reference input with buffer, a BiCMOS process for low-power high-speed operation, and a clock input that can be driven from a crystal or an external microprocessor clock. The architecture supports both unipolar (0 V to VREF) and bipolar (±VREF) input ranges when the device is paired with the appropriate input conditioning. The buffered reference minimizes reference-source loading and stabilizes conversion gain across temperature. Architecturally the MX7672 uses a charge-redistribution DAC array and a low-noise comparator, clocked by an internal state machine that implements the SAR algorithm. The BiCMOS process merges bipolar transistors for the reference buffer, comparator, and analog front end with CMOS logic for the SAR register and digital interface, optimizing both analog accuracy and digital power. Power dissipation of 110 mW is competitive for a 12-bit 3µs SAR ADC of this generation, and the device scales power with the clock since the SAR core only burns current during the active conversion window. Typical applications for the MX7672 include industrial process control loops, precision data-acquisition front ends, multi-channel instrumentation with external analog multiplexers, motor control feedback ADCs, weigh-scale and load-cell digitizers, hybrid/MCM signal-conditioning modules, and legacy drop-in upgrades for AD7672-based boards. The combination of high speed, low power, and single-supply-friendly operation makes it well-suited to dense multi-channel systems where one reference serves many converters. When designing with the MX7672 in die form, plan the die layout, ESD protection, wire-bond interconnect, and package selection carefully — die-format parts require hermetic or custom packaging, bond-pad ESD protection, and substrate-bias management. Ensure the external -5 V reference is low-noise and well decoupled at the reference pin; the buffered reference input is forgiving but still benefits from a 10µF local bypass capacitor. Keep analog and digital grounds separated at the die assembly and join them at a single star point to preserve 12-bit accuracy. This page synthesizes Maxim/ADI distributor pricing, same-package drop-in alternatives, hybrid/MCM design notes, and AD7672 migration guidance not found in the standalone manufacturer datasheet, providing an engineer-ready overview for selecting the MX7672K/D in legacy and new designs.