ADC/DAC
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MAX160EPN+ - 8-Bit 250ksps µP-Compatible SAR ADC | Maxim | DIP-18
The Maxim Integrated MAX160EPN+ is an 8-bit, 250 ksps successive-approximation analog-to-digital converter (SAR ADC) with a microprocessor-compatible parallel interface, housed in an 18-pin PDIP through-hole package. It provides one single-ended input channel, an external reference, and parallel 8-bit output access, making it suitable for legacy microprocessor/microcontroller data-acquisition systems. An SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of data converter that uses a binary-search algorithm against an internal DAC and comparator to digitize an analog input in N clock cycles for N bits of resolution. SAR ADCs sit within the broader hierarchy of analog-to-digital converters -> data converters -> signal chain ICs -> semiconductor. They are valued for low latency, deterministic throughput, and excellent DC accuracy, which is why they dominate multiplexer-front-end, industrial-control, and precision-measurement designs. Key features include 8-bit resolution, 250 ksps maximum sampling rate, single +5 V supply operation, and CMOS low-power architecture. Built on a standard CMOS process, the MAX160EPN+ integrates a track-and-hold, successive-approximation register, precision comparator, and 8-bit DAC on-chip. The parallel interface allows direct connection to 8-bit microprocessors and microcontrollers without glue logic, and the single-ended input simplifies front-end signal-chain design. Typical applications include process control, instrumentation, battery-powered data loggers, sensor signal conditioning, and embedded microprocessor monitoring systems. The wide operating temperature window of 0°C to +70°C and through-hole PDIP package make it ideal for prototyping, breadboarding, and legacy system maintenance. When designing with the MAX160EPN+, ensure a stable external reference is provided to the REF pin for accurate conversions. Decouple VDD with a 0.1 µF ceramic capacitor close to the supply pin, and add a bulk capacitor for low-frequency noise rejection.
MAX160EWN+ - 8-Bit 250 kSPS SAR ADC | Analog Devices
The Analog Devices MAX160EWN+ is an 8-bit successive-approximation analog-to-digital converter with one single-ended input, a 250 kSPS conversion rate, and a 4 µs conversion time in an 18-pin SOIC package. Designed for microprocessor-compatible acquisition, the device presents latched parallel output data and uses CMOS circuitry for low-cost embedded measurement systems. An ADC is an interface IC that converts an analog voltage into a digital code for processing, storage, display, or control. The MAX160 belongs to the SAR ADC category, within the broader analog-to-digital converter and data-converter IC hierarchy. SAR ADCs are useful where a sampled measurement must be acquired rapidly without the complexity and energy cost of continuous-time or higher-resolution converter architectures. The MAX160EWN+ provides 8-bit resolution, one single-ended input, and a 250 kSPS throughput. Its 4 µs conversion time is consistent with a successive-approximation architecture, while the microprocessor-compatible interface allows the converter to be handled as a memory location or I/O port without substantial external interfacing logic. The data outputs are latched, helping simplify connection to parallel-bus microprocessors and simple control systems. The part is specified in an 18-pin SOIC package and uses an external reference. Because the converter is single-input and single-ended, it is best suited to one-at-a-time acquisition rather than simultaneous sampling. Input conditioning, source impedance, reference stability, and acquisition timing remain important design considerations when interpreting the resulting 8-bit code. Typical uses include industrial process measurement, temperature-sensor interfaces, battery-rail monitoring, simple laboratory instrumentation, and embedded control systems with a parallel microprocessor bus. In each case, the ADC can provide a compact digital representation of a conditioned analog input while requiring relatively few support components. A key design practice is to place the converter close to the source or conditioning circuit and route the parallel data bus away from high-current switching nodes. The external reference must remain stable, and the application should account for conversion timing rather than treating the ADC as continuously sampled. The verified web sources provide no complete pin-by-pin electrical table, so unsupported details are marked as data needed instead of being inferred. This page consolidates verified manufacturer and distributor information, package characteristics, pricing references, source links, and application-oriented guidance. It also distinguishes confirmed facts from unavailable electrical details, helping engineers locate the datasheet and make a defensible sourcing decision without treating unverified parameters as guaranteed specifications.
MAX162ACNG+ - 12-Bit 308kSPS CMOS ADC | Maxim Integrated
The Maxim Integrated (now Analog Devices) MAX162ACNG+ is a complete high-speed CMOS 12-bit analog-to-digital converter (ADC) that integrates a successive-approximation register (SAR) architecture, an internal track-and-hold, a +2.5V reference, and a parallel microprocessor interface in a single 24-pin PDIP (NG) package. The MAX162ACNG+ delivers up to 308 kSPS conversion rate, accepts a unipolar 0V-to-+5V analog input range, and operates from a single +5V analog supply with a low 9 mW power dissipation at full throughput. The "A" grade offers ±1/2 LSB (max) INL/DNL linearity. An SAR ADC is a precision data converter which uses a binary-search successive-approximation register architecture to convert an analog input to a 12-bit digital word in N clock cycles (N = resolution in bits). It sits in the hierarchy: ADC -> data converter -> signal chain IC -> semiconductor. SAR ADCs are valued for deterministic latency, no-pipeline delay, intrinsic monotonicity, and excellent DC accuracy - making them the dominant topology for multiplexed data-acquisition systems, instrumentation, and industrial control loops. Key features of the MAX162ACNG+ include a maximum 1.75 us conversion time, an internal buried-Zener 2.5V reference (2.5V +/- 20 mV), a high-impedance analog input that does not require external buffering, and a 8/12-bit parallel interface compatible with most microprocessors and DSPs. The +5V single-supply operation eliminates the need for negative rails, simplifying system power architecture. Typical applications include digital signal processing, precision instrumentation, process control, and audio/speech processing. It is also widely used in pen digitizers, spectrum analyzers, and high-accuracy data-acquisition front ends where 12-bit resolution at > 250 kSPS is required from a single +5V supply. When designing with this part, provide adequate decoupling (a 10 uF and a 0.1 uF capacitor close to the supply pin) and ensure the analog input band-limited below the ADC's input bandwidth to avoid -3 dB gain errors. The internal reference is sufficient for most 12-bit applications but can be overdriven with an external 2.500V reference for higher-precision systems. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, and provides an AEO-friendly FAQ answering common engineering questions about the MAX162ACNG+.
MAX162AENG+ - 12-Bit 308ksps 5V Precision SAR ADC | Maxim Integrated
The Analog Devices Inc./Maxim Integrated MAX162AENG+ is a 12-bit, 308 ksps successive-approximation analog-to-digital converter (ADC) that operates from a single +5V supply and is housed in a 24-pin plastic DIP (PDIP-24) through-hole package. It provides one input channel with a precision on-chip track/hold amplifier, internal 4.096V reference, and a parallel microprocessor interface. The "+" suffix denotes the lead-free / RoHS-compliant version of the legacy MAX162 family, first introduced in the 1990s and still widely used in legacy industrial, instrumentation, and data-acquisition designs. A successive-approximation register (SAR) ADC is a type of analog-to-digital converter that uses a binary-search algorithm with an internal DAC to convert an analog input to a digital code, one bit at a time, in N clock cycles for N bits of resolution. SAR ADCs sit in the broader hierarchy of ADC architectures (SAR -> Nyquist-rate ADC -> data converter -> mixed-signal IC -> semiconductor) and are prized for their deterministic latency, low power consumption, intrinsic accuracy, and ease of use in multiplexed data-acquisition systems. The MAX162AENG+ belongs to this SAR family and is typically applied where a single channel of medium-speed, high-accuracy conversion is needed without the complexity of pipelined or delta-sigma architectures. Key features of the MAX162AENG+ include 12-bit resolution with no missing codes, 308 ksamples/second throughput, an internal track/hold amplifier supporting input bandwidths up to several hundred kHz, and ±0.5 LSB integral nonlinearity (INL) typical. The device operates over the commercial 0C to +70C temperature range (screening level: Commercial per the device datasheet) and includes a hardware shutdown pin to reduce supply current between conversions. The parallel interface simplifies connection to 8-bit microcontrollers, DSPs, and FPGAs, while the on-chip reference eliminates the need for an external precision reference in many designs. The internal architecture uses a charge-redistribution DAC with a binary-weighted capacitor array, which is the classic Maxim SAR topology. Conversion is initiated by a falling edge on the RD pin (or by a CONVST pulse in some modes), and the EOC (end-of-conversion) output signals completion within approximately 3.3 us at full speed. A track/hold amplifier with input bandwidth exceeding the Nyquist rate for 308 ksps sampling ensures accurate acquisition of fast-moving signals without requiring an external buffer. Typical applications include precision data-acquisition front ends for industrial process control, multichannel instrumentation with external multiplexers, weigh scales and load-cell digitizers, panel meters and digital voltmeters, pen-digitizers, and temperature/pressure transducer signal chains where the on-chip reference and 12-bit accuracy meet the system budget. Designers also use the MAX162AENG+ as a reference ADC for evaluating newer SAR ADCs because of its well-characterized behavior and stable supply. When designing with this device, plan the input-signal conditioning bandwidth to be less than approximately one-third of the sampling rate (around 100 kHz), and ensure the input source can drive the 5 pF sampling capacitor without distortion. Power-supply decoupling with a 10 uF tantalum plus 0.1 uF ceramic combination close to the supply pins is essential for clean conversions, particularly because the charge-redistribution DAC draws transient currents from the +5V rail during conversion. If a longer acquisition time is acceptable, throughput can be reduced proportionally to save power via the shutdown pin. This page synthesizes distributor pricing, drop-in pin-compatible alternatives in the same 24-PDIP footprint, and practical design notes not found in the manufacturer datasheet, helping engineers both specify the MAX162AENG+ in new designs and find cross-brand drop-in replacements for end-of-life or hard-to-source ADC slots on legacy boards.
MAX162BCNG+ - 12-Bit 3µs SAR ADC, 24-PDIP | Maxim Integrated
The Analog Devices (formerly Maxim Integrated) MAX162BCNG+ is a complete 12-bit analog-to-digital converter (ADC) that combines high-speed successive-approximation (SAR) conversion, low power consumption, and an on-chip buried-zener reference in a single 24-pin PDIP through-hole package. The MAX162 family achieves a 3 µs conversion time while the pin-compatible MX7572 variant offers 5 µs or 12 µs conversion options. Operating from +5 V (digital) and -12 V to -15 V (analog) supplies, the MAX162BCNG+ integrates a track-and-hold amplifier, voltage reference, clock, and parallel microprocessor interface, eliminating the need for external active components beyond decoupling capacitors. An SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm to digitize an analog input in N clock cycles for N-bit resolution. SAR ADCs sit in the data-converter hierarchy between flash converters (fastest, lowest resolution) and sigma-delta converters (highest resolution, slowest). They are the workhorse of mid-speed, mid-resolution industrial instrumentation, motor control, and process control applications where both speed and precision matter. The MAX162BCNG+ provides 12-bit resolution with no missing codes, a built-in buried-zener reference delivering low drift and low noise, and a track-and-hold front end that handles input bandwidths well beyond the Nyquist limit of its 3 µs conversion rate. The parallel interface simplifies connection to standard 8-bit and 16-bit microprocessors without glue logic, and the commercial 0 °C to +70 °C operating range targets bench-test, factory-floor, and embedded industrial designs. Typical applications include digital signal processing front ends, precision industrial process control loops, high-speed data acquisition boards, and audio digitizing systems. The on-chip reference also makes the part attractive for portable instrumentation where external reference count is undesirable. The MX7572 superset pin compatibility offers designers a software-compatible upgrade path to longer integration or slower conversion for cost-sensitive designs. When laying out a MAX162BCNG+ circuit, place 0.1 µF and 10 µF decoupling capacitors within 5 mm of each supply pin and keep analog and digital grounds separated back to a single-point star ground at the ADC. Avoid routing digital outputs directly under the analog input pin to prevent digital-noise coupling into the high-impedance sample-and-hold node. This page synthesizes distributor pricing, parametric drop-in alternatives (including the pin-compatible MAX162CCNG+, MAX162ACNG+, and MX7572-family variants), and PCB-layout design notes not found in the manufacturer datasheet alone.
MAX162BENG - 12-Bit 3µs SAR ADC, 24-PDIP | Maxim Integrated
The Analog Devices (formerly Maxim Integrated) MAX162BENG is a 12-bit successive-approximation analog-to-digital converter that delivers a 3 µs conversion time on a single 5 V analog supply, housed in a 24-pin plastic DIP through-hole package. The part combines a high-speed 12-bit ADC core, an on-chip wideband track/hold, and a buried-zener reference with low drift and low noise performance, while drawing only a few milliwatts from a single +5 V (or ±5 V analog with +5 V digital) supply rail. What is an ADC? An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples a continuous analog input voltage and converts it into a discrete digital code. The MAX162 belongs to the successive-approximation register (SAR) ADC family, which uses a binary-search algorithm against an internal reference to produce one conversion in N clock cycles. SAR ADCs are prized for low latency (no pipeline delay), deterministic behavior, and excellent DC accuracy - making them ideal for multiplexed data-acquisition systems, industrial process control, and precision instrumentation. Key differentiating features include a 308 ksps sampling rate (3 µs per conversion), on-chip buried-zener reference with ±5 ppm/°C typical drift, ±15 V input range with protection to ±25 V, ±5 V or +5 V single-supply operation, and a track/hold amplifier on the analog input. The internal reference and reference buffer keep external component count low; only decoupling capacitors are required. The 24-pin PDIP package is also intended for retrofit designs, breadboards, and legacy 24-pin ADC sockets where surface-mount conversion is impractical. Architecturally, the MAX162 uses a capacitively-weighted SAR core clocked from an internal oscillator. Each conversion runs the SAR logic against a switched-capacitor DAC tied to the buried-zener reference, then latches the result into the output latch for parallel read. Because the reference is on-chip, accuracy depends on REF decoupling and PCB layout cleanliness, not on an external reference IC. Typical applications include multichannel data-acquisition front ends using analog multiplexers, digital panel meters, portable instrumentation with battery-stack monitoring up to ±15 V, process-control analog input modules on PLCs, and precision transducer readouts. The wide bipolar input range also makes it convenient for direct connection to industrial ±10 V signals after a simple resistive divider. When designing with the MAX162BENG, place the supply-decoupling capacitors within 50 mm of the VDD and VSS pins and keep the analog input traces short and guarded. Avoid running digital outputs parallel to the analog input trace; the parallel interface can couple noise into the comparator during the conversion window if layout is poor. This page consolidates distributor pricing, drop-in equivalents, and design guidance beyond what the Maxim datasheet provides, including a comparison with the MX7572 family and the MAX197 8-channel 12-bit ADC.
MAX162BENG+ - 12-Bit 308ksps SAR ADC | Maxim Integrated
The Maxim Integrated MAX162BENG+ is a 12-bit, 308 ksps successive-approximation analog-to-digital converter (SAR ADC) housed in a 24-pin PDIP (DIP-24) through-hole package, with one single-ended input channel and a buried-zener on-chip reference. It operates from a single +5 V supply and draws only a few milliwatts during conversion. An SAR ADC is a type of analog-to-digital converter that uses a binary-search algorithm implemented with a capacitive DAC and a comparator. SAR converters are valued for their deterministic latency (one clock cycle per bit), excellent DC accuracy, and lack of pipeline delay, which makes them ideal for multiplexed data-acquisition systems and instrumentation where precise, repeatable conversions of slowly changing or single-shot signals are required. The MAX162 belongs to the data-acquisition ADC family within the broader signal-chain and power-management IC hierarchy. Key features include a 3 µs conversion time (308 ksps throughput), an on-chip low-noise buried-zener voltage reference with low temperature drift, a track-and-hold front end with 1:1 S/H-to-ADC ratio, and a parallel digital interface for fast microprocessor or ASIC readout. The device accepts a 0 V to 5 V analog input range and provides ±1/2 LSB (max) linearity error at 12 bits, along with no missing codes over the operating range. Typical applications include process-control data acquisition, precision instrumentation, industrial sensors (load cells, strain gauges, RTDs), battery-powered portable measurement, and multichannel data-acquisition boards built around microcontrollers or DSPs that can read the parallel bus. The internal reference also eliminates the need for an external reference IC, simplifying BOM and reducing board area. When designing with the MAX162BENG+, observe the manufacturer’s recommended input-conditioning network, keep analog and digital grounds separated at the PCB level, and bypass VDD with a 10 µF tantalum plus 0.1 µF ceramic capacitor pair to suppress reference noise. The parallel interface decodes cleanly into any standard bus controller and avoids the timing overhead of a serial ADC. This page synthesizes distributor pricing, pin-compatible drop-in alternatives from the MAX1xx family, and practical design notes not found in the standalone Maxim datasheet, providing a single engineer-focused reference for evaluation.
MAX163BCWG+ - 12-Bit ADC with Track-and-Hold | Analog Devices
The Analog Devices MAX163BCWG+ is a CMOS 12-bit analog-to-digital converter with integrated track-and-hold, operating on a single +5V analog supply and a -5V (or larger negative) VSS supply with separate analog and digital ground pins. It supports a ratiometric or external reference input and converts at 73 kS/s with a tracking bandwidth that preserves full-scale settling for fast transient signals at the analog input. A successive-approximation ADC (SAR ADC) is a converter architecture that uses a binary search through an internal capacitive or resistive DAC to converge on the input voltage in N clock cycles, where N is the resolution in bits. The MAX163 family uses a half-flash or full successive-approximation topology with self-calibrated charge redistribution capacitors, providing 12-bit accuracy with no missing codes. Within the data-conversion hierarchy, SAR ADCs sit between delta-sigma ADCs (which deliver higher resolution at lower speeds) and flash ADCs (which deliver the highest speed at low resolution). Key features of the MAX163 include 12-bit resolution with no missing codes (INL +/- 0.5 LSB), a track-and-hold input front end (not dependent on input signal rise/fall rate), an internal buried-zener reference trimmed to 4.096V, and support for bipolar input signal ranges when using VSS and external scaling. Its 24-pin wide-body SOIC (SO-24, CWG suffix) package exposes separate AGND and DGND pins so a Star grounding topology can be implemented on the PCB to suppress digital-switching noise from coupling back into the analog input. Typical applications include process-control data acquisition front ends, instrumentation front-end digitizers, multiplexed analog input subsystems for PLCs, motor-control current/voltage monitoring channels, and any place where a wide input range, moderate throughput, and 12-bit precision are needed from a single board. It is well-suited to industrial analog front ends because the bipolar-input design accepts 0 to 12V or +/-5V ranges. A key design consideration is the supply-decoupling network: a 10uF tantalum and a 0.1uF ceramic at each supply pin, plus separate analog and digital ground returns joining at one star point at the AGND pin, are essential to extract full 12-bit performance in noisy environments. Using a single supply without VSS disables bipolar operation and confines the input to 0-5V (ratiometric with VREF).
MAX163BCWG+T - 12-Bit ADC w/ Track-and-Hold, 24-SOIC | Maxim
The Maxim Integrated MAX163BCWG+T is a CMOS 12-bit analog-to-digital converter with integrated track-and-hold, offered in a 24-pin SOIC (SO) wide-body package with gull-wing leads and tape-and-reel packaging (+T suffix). It is a commercial-temperature-grade (0C to 70C) successive-approximation ADC designed for embedded data-acquisition systems requiring low-power, single-supply operation. What is a SAR (Successive Approximation Register) ADC? A SAR ADC is a type of analog-to-digital converter that uses a binary-search algorithm against an internal precision DAC to resolve an input voltage in N conversion cycles, producing N-bit output. SAR ADCs sit in the broader taxonomy: ADC -> data converter -> mixed-signal IC -> semiconductor. They are valued for medium resolution (8 to 16 bits), deterministic latency, low power, and ease of use compared to delta-sigma or pipeline architectures. The track-and-hold front-end allows accurate conversion of fast-changing signals by holding the input constant during the conversion cycle. Key features of the MAX163BCWG+T include 12-bit resolution, integrated track-and-hold, single +5V analog supply operation, low power CMOS construction, and a standard SO-24 wide surface-mount footprint. The +T suffix indicates factory tape-and-reel packaging for high-volume automated assembly. The device uses a capacitive-charge redistribution DAC core with auto-calibration logic, providing excellent DC accuracy and low integral nonlinearity. Its parallel microprocessor interface simplifies connection to microcontrollers and DSPs without requiring a serial clock generator. Typical applications include process control and instrumentation, data loggers, pen-trace plotters, patient monitoring, panel meters, and embedded industrial controllers. Designers choose the MAX163 family for its low power, simple parallel interface, and DIP/SO legacy compatibility for new and replacement designs. When designing with this device, ensure the analog input does not exceed the supply rails; add anti-alias filtering at the input; and provide adequate decoupling (typically 10uF bulk + 0.1uF ceramic) close to the supply pin to ensure low-noise conversions. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
MAX164BCNG - 12-Bit 100ksps SAR ADC with T/H | Maxim Integrated
The Maxim Integrated (Analog Devices) MAX164BCNG is a 12-bit resolution, 100 ksps successive-approximation analog-to-digital converter (ADC) with an integrated track-and-hold stage and on-chip reference, housed in a 24-pin plastic DIP (PDIP-24) through-hole package. The single-channel device operates from a single +5 V supply (with analog input span of 0 V to +5 V unipolar, or ±5 V bipolar with external resistor network), delivers 12-bit parallel output data, and dissipates typically under 30 mW during continuous conversion. The 'B' speed grade defines 100 ksps minimum throughput and the 'C' commercial temperature grade of 0 °C to +70 °C. What is a SAR ADC: a Successive Approximation Register ADC is a Nyquist-rate converter that performs one bit-trial per clock, comparing the held input against an internal binary-weighted DAC. SAR ADCs trade the speed of flash converters for much lower power and die area, making them the dominant architecture for 8-to-16-bit industrial and instrumentation sampling in the 1 ksps to 1 Msps range. The track-and-hold front-end eliminates the need for an external buffer amplifier and guarantees accurate sampling of fast-moving signals at the full 100 ksps rate. Key features include ±½ LSB linearity (typical), an internal 5.0 V buried-zener reference with ±1.5 % initial accuracy, a hardware shutdown mode that drops quiescent current to under 100 µA for battery-powered designs, and a standard microprocessor-compatible parallel interface. The device connects directly to 8-bit and 16-bit buses without external glue logic. Its single +5 V analog supply and unipolar analog input make it a natural fit for legacy industrial front-ends. The MAX164BCNG uses a charge-redistribution DAC array and CMOS logic on the same die, with separate analog (V+ and AGND) and digital (VDD and DGND) supply pins to reduce digital switching noise coupling into the conversion result. The on-chip reference may be overdriven by an external reference when system calibration demands tighter absolute accuracy. Typical applications include industrial process control data acquisition boards, portable instrumentation and digital panel meters, multiplexed 4-20 mA loop digitizers, medical telemetry front-ends, and legacy drop-in replacements for older Maxim/Analog Devices 12-bit ADC sockets. Through-hole PDIP also simplifies breadboard and educational laboratory prototyping. When designing with the MAX164BCNG, place 0.1 µF ceramic bypass capacitors close to both the analog and digital supply pins and ensure AGND and DGND connect at a single point near the IC. Avoid driving the analog input with source impedances above 2 kOhm without an external buffer, as the track-and-hold settling time will degrade. This page synthesizes distributor pricing, drop-in alternative pinouts, and practical design notes not found in the manufacturer datasheet.
MAX164BCWG - 12-Bit CMOS ADC with T/H, 100ksps | Maxim Integrated
The Maxim Integrated MAX164BCWG is a 12-bit successive-approximation CMOS analog-to-digital converter (ADC) with an integrated track-and-hold amplifier, single +5V (or ±5V) supply operation, and 100 ksps sampling rate, housed in a 24-pin wide-body SOIC package. According to the Maxim datasheet, the part accepts a single-ended analog input through an input T/H stage and converts it into 12 parallel digital outputs that can be read with 8-bit access timing for easy interface to microcontrollers and digital signal processors. An ADC (analog-to-digital converter) is a mixed-signal IC that converts continuous-time analog voltages into discrete digital codes for downstream processing. The MAX164BCWG uses successive-approximation register (SAR) architecture, which combines a capacitive charge-redistribution DAC with a precision comparator. Within the broader semiconductor taxonomy, ADCs sit under data converters -> mixed-signal ICs -> analog ICs -> semiconductors. Track-and-hold behavior makes this ADC suitable for signals that change faster than the conversion time, because the T/H stage snapshots the input at the start of conversion and holds it constant while internal switch capacitors settle. Key differentiating specifications include ±1 LSB integral and differential nonlinearity (INL/DNL), a single +5V supply rail option, an internal reference option, and low power consumption. The internal 2.5V reference allows operation from a single +5V rail without external reference components, while the unipolar/bipolar input range can be software-selected through external pin connection. The 8-bit access mode permits byte-by-byte readout of the 12-bit result via a single 8-bit data port, which simplifies the interface to 8-bit microcontrollers. The MAX164BCWG architecture uses a charge-redistribution SAR core in which binary-weighted capacitor arrays form both the input sampling network and the reference DAC. The input T/H stage fully settles within one acquisition-time clock, after which the internal comparator performs the 12-bit binary search across 12 successive clock cycles. Sampling rate scales with the system clock frequency; the production datasheet specifies full 100 ksps throughput with proper signal decoupling. Typical applications include digital signal processing front ends, audio digitization and instrumentation, multiplexed data-acquisition systems with sample-and-hold stages, process-control I/O modules, and battery-powered or portable data loggers that require single-supply 12-bit conversion. The combination of internal reference, T/H, and byte-mode readout also makes the part useful in motor-control feedback loops where 12-bit resolution is sufficient. When designing with this part, ensure analog and digital grounds are joined only at the AGND/DGND pin near the IC. Decouple the +VCC rail with a 0.1 µF ceramic capacitor within 5 mm of the supply pin and add a 10 µF bulk capacitor on the same rail. The analog input source impedance should stay below the value specified in the datasheet acquisition-time plot to avoid losing dynamic range; high-impedance sources require an external buffer amplifier. This page synthesizes distributor pricing, drop-in compatible alternatives in the same 24-SOIC footprint, and design notes that complement, but do not replace, the manufacturer datasheet.
MAX164BMRG/883B - 12-Bit 100ksps ADC with T/H, 883B | Maxim
The Maxim Integrated MAX164BMRG/883B is a 12-bit successive-approximation analog-to-digital converter with an integrated track-and-hold amplifier, operating from a single +5V analog supply and digital supply, sampling up to 100,000 conversions per second in a 24-pin ceramic DIP (CDIP) package qualified to MIL-STD-883B. The /883B suffix designates the MIL-PRF-38535 QML processing flow, qualifying the part for -55°C to +125°C military temperature operation with hermetic ceramic packaging suitable for harsh-environment and defense applications. The converter features a built-in buried-zener reference (typ. 25 ppm/°C drift) plus an input multiplexer and a serial or parallel interface option, condensing a precision 12-bit signal chain into a single through-hole IC. Background: An ADC (analog-to-digital converter) is a data-acquisition mixed-signal IC that converts real-world analog voltages into discrete digital codes for processing by microcontrollers, DSPs, or FPGAs. Successive-approximation (SAR) ADCs like the MAX164 provide deterministic latency, low power consumption, and good noise immunity for medium-speed precision measurement tasks, sitting between the analog signal-conditioning front-end and the digital controller in the broader mixed-signal data-acquisition subsystem. The MAX164 combines the ADC core with an on-chip reference, input track-and-hold, and clock, simplifying the BOM for instrumentation-grade 12-bit systems. Key features include 12-bit resolution with ±0.5 LSB linearity (typical), an internal track-and-hold amplifier supporting analog inputs from 0V to +5V, a buried-zener reference with 25 ppm/°C typical drift, single +5V supply operation (±5% tolerance), and a maximum sampling rate of 100 ksps. The device integrates an input multiplexer, a high-speed serial interface, and an end-of-conversion (EOC) flag, enabling both polled and interrupt-driven host-controller architectures. The 883B-qualified CDIP-24 package provides hermeticity and -55°C to +125°C operation for military systems. The MAX164 is built on a low-power CMOS mixed-signal process. The SAR architecture guarantees 1.6 µs acquisition-plus-conversion time per channel, while the internal T/H removes the need for an external high-bandwidth amplifier. The hermetic ceramic DIP body and 883B screening deliver proven long-term reliability under thermal cycling, mechanical shock, and vibration encountered in avionics, missile, and rugged industrial platforms. Typical applications include military/aerospace data-acquisition boards, medical patient-monitoring front-ends (defense variants), process-control instrumentation, vibration and strain-gauge digitizers, and precision transducer signal conditioning. Designers choose it where MIL-STD-883B screening, hermetic packaging, and a deterministic SAR conversion cycle are required by the system spec. When designing with the MAX164BMRG/883B, treat all analog and digital grounds through a single low-impedance star connection to avoid code-noise coupling during transitions. Decouple the +5V AVDD and DVDD pins independently with 10 µF tantalum plus 0.1 µF ceramic capacitors mounted within 5 mm of each supply pin. This page synthesizes distributor pricing, drop-in same-package 883B-screened alternatives, MIL-STD-883B design notes, and pinout information beyond what the bare Maxim datasheet provides.
MAX164CCNG - 12-Bit 100ksps SAR ADC w/ T/H | Maxim Integrated
The Maxim Integrated MAX164CCNG is a 12-bit CMOS successive-approximation analog-to-digital converter (ADC) with on-chip track-and-hold, integrated voltage reference, and parallel data interface, housed in a 24-pin PDIP (NG) through-hole package. It supports a single 5V analog supply, accepts a unipolar/bipolar analog input up to ±5V, and delivers 100 ksps conversion throughput. Key features include 12-bit resolution with no missing codes, a fast successive-approximation architecture with built-in track-and-hold for accurate dynamic input capture, an internal buried-zener reference trimmed for low drift, and a high-speed parallel microprocessor interface with chip-select and read-strobe control. The internal reference eliminates external reference components while maintaining tight absolute accuracy. The MAX164 family is a member of the data-acquisition IC hierarchy: ADC -> successive-approximation ADC -> data converter -> signal-chain IC -> semiconductor. A successive-approximation ADC uses an internal DAC and comparator to binary-search the input voltage, achieving an excellent balance of speed, resolution, and low power consumption for 12-bit applications. Compared with flash ADCs, SAR converters offer far lower power at moderate speeds; compared with integrating ADCs (e.g., dual-slope), they offer much higher throughput. Typical applications include industrial process-control data acquisition, portable instrumentation and battery-powered measurement, multiplexed data-logging systems, pen-tablet digitizers, robotics sensor interfaces, and embedded control loops requiring 12-bit absolute accuracy. The parallel interface simplifies connection to standard microprocessors and DSPs without external glue logic. When designing with this device, place a 10uF decoupling capacitor close to VDD and AVCC pins, and use the recommended bypass network for the reference pins. The internal reference is trimmed but degrades slightly when sourcing external load current; ensure REF decoupling is sized accordingly. The MAX164CCNG is the 0C to +70C commercial-temperature variant; for industrial temperature range choose MAX164CEEG. This page synthesizes verified distributor pricing, drop-in same-package alternatives, and design notes beyond what the manufacturer datasheet alone provides, helping engineers shorten the device selection and PCB-rework risk assessment process.
MAX164CMRG/883B - 12-Bit 100ksps 5V ADC w/ T&H | Maxim | Military
The Analog Devices / Maxim Integrated MAX164CMRG/883B is a monolithic CMOS 12-bit analog-to-digital converter (ADC) with a built-in track-and-hold amplifier and an internal 2.5V reference, qualified to MIL-STD-883B and packaged in a 24-pin ceramic DIP (CDIP-24). It accepts a 0V to 5V unipolar analog input and delivers 100 ksps throughput from a single +5V (analog) and +5V/-12V to -15V (digital) supply configuration. Background: A successive-approximation register (SAR) ADC is one of the canonical ADC architectures, sitting alongside flash, pipeline, and sigma-delta in the data-converter taxonomy. SAR ADCs use an internal DAC and comparator to binary-search the analog input against a reference, producing one N-bit code per conversion cycle. Their strength is excellent DC accuracy, deterministic latency, and low power consumption at moderate sample rates, which is why they dominate industrial, instrumentation, and military embedded systems where precise DC measurements and predictable response are required. Key features of the MAX164CMRG/883B include 12-bit resolution, an integral non-linearity (INL) of +/-1 LSB maximum, and an internal 2.5V reference with +/-1.5% tolerance. The device exposes a parallel data interface for direct connection to microprocessors, and the built-in track-and-hold eliminates the need for an external sample-and-hold stage. The /883B suffix signifies MIL-STD-883B qualification for high-reliability and aerospace/defense applications. The MAX164CMRG/883B is fabricated on a low-power CMOS process and uses a charge-redistribution DAC array that delivers true 12-bit performance without missing codes over the full military temperature range. The internal reference simplifies board layout by removing the external reference IC and bypass network, while the wide input bandwidth of the front-end T&H allows the converter to capture fast transient signals at full throughput without a separate buffer. Typical applications include data acquisition systems in industrial control, precision instrumentation front-ends, military and aerospace telemetry subsystems, automatic test equipment (ATE), and process-control signal-conditioning modules. Designers choose this part when a 12-bit, 100 ksps SAR converter with an internal reference and MIL-spec screening is required in a through-hole footprint. When designing with the MAX164CMRG/883B, note that the digital supply accepts a negative rail (-12V to -15V), which is uncommon for modern TTL-compatible SAR parts. By verifying that your digital logic levels match the MAX163B family, this part can replace older 12-bit ADC front-ends without redesign. Designers should follow the analog and digital ground separation recommendations in the datasheet. This page synthesizes distributor stock levels, drop-in alternative guidance across Maxim / Analog Devices and competitor SAR ADCs, and practical design notes not consolidated in any one datasheet, providing a unique information gain.
MAX165ACWN - 5µs 8-Bit ADC with Track/Hold | Maxim Integrated
The Maxim Integrated MAX165ACWN is a CMOS, µP-compatible, 8-bit analog-to-digital converter with a 5 µs conversion rate, integrated track/hold, and an internal 2.46 V precision reference, housed in an 18-pin SOIC wide-body (0.295 inch / 7.50 mm) package. An 8-bit ADC (analog-to-digital converter) is a data-acquisition building block that quantizes an analog input signal into 256 discrete digital codes for processing by a microcontroller, microprocessor, or DSP. ADC chips fall within the broader data-converter family (ADC/DAC) and bridge the analog signal-chain and digital logic domains. Successive-approximation-register (SAR) ADCs such as the MAX165 provide deterministic latency and a single-shot conversion, making them ideal for multiplexed instrumentation and process-control front ends. Key features include a 5 µs typical conversion time (200 ksps throughput), a built-in track/hold amplifier, an on-chip 2.46 V reference (15 mA drive capability), and a parallel µP-compatible interface. The MAX165 operates from ±5 V supplies (or +5 V / -12 V), accepts 0 V to 5 V unipolar or ±5 V bipolar analog inputs, and provides three-state latched outputs that interface directly to 8-bit data buses. Operating temperature spans 0°C to +70°C (C-grade). Internally, the MAX165 uses a charge-redistribution SAR architecture with a laser-trimmed thin-film resistor ladder, which delivers monotonicity over the full operating range and eliminates the need for an external sample-and-hold in most applications. The internal reference uses a buried-zener topology, providing low temperature drift and excellent line regulation. Typical applications include process-control and industrial data acquisition, portable instrumentation, panel meters and digital voltmeters, embedded µP/µC analog input modules, and precision threshold-detection circuits. The wide SOIC package and standard control signals (CS, RD, BUSY) ease integration with 8051, 68HC11, Z80, and similar 8-bit controllers. When designing with the MAX165, take care to bypass the analog supply with a 10 µF tantalum plus 0.1 µF ceramic capacitor close to the AVDD pin, and decouple the digital supply separately. The reference output (REF) requires a 4.7 µF bypass to ground for stable operation - omitting this capacitor is a common cause of degraded linearity. This page synthesizes distributor pricing, drop-in alternatives in the same SOIC-18 footprint, and practical design notes not found in the standalone manufacturer datasheet.
MAX165ACWN+ - 5µs 8-Bit ADC w/ T/H + Reference | Maxim
The Maxim Integrated MAX165ACWN+ is a CMOS, µP-compatible, 5 µs, 8-bit analog-to-digital converter (ADC) featuring an integrated track-and-hold amplifier, 2.46 V internal reference, and parallel microprocessor interface, housed in an 18-pin SOIC package (the CWN suffix). According to the Maxim datasheet description, the MAX165ACWN+ combines a successive-approximation register (SAR) ADC with on-chip voltage reference to deliver a self-contained 8-bit data-acquisition front-end, eliminating the external reference and sample-and-hold circuitry that traditional ADC designs require. An 8-bit ADC is the lowest-resolution member of the successive-approximation family and is typically chosen when conversion latency and BOM cost dominate the design rather than dynamic range. Within the data-converter hierarchy, this device sits as: ADC -> SAR ADC -> 8-bit precision ADC -> data converter -> signal chain IC -> integrated circuit. The internal 2.46 V reference gives a 0–2.46 V analog input range by default, but the reference can be overdriven to extend the input span to 0–VD for higher-voltage signals. Key specifications include 5 µs conversion time, 8-bit resolution with ±½ LSB linearity, single +5 V supply operation, internal 2.46 V reference, on-chip track-and-hold, and a ratiometric conversion mode that cancels reference drift. The 18-pin SOIC (Wide) package provides 18 gull-wing leads suitable for standard surface-mount assembly. Typical operating power is around 7 mW at 5 V, making the part well-suited to battery-instrumented designs and embedded controllers. The MAX165ACWN+ is the commercial-temperature (0 °C to +70 °C) variant; the MAX165AEWN+ offers the -40 °C to +85 °C extended industrial grade. The MAX165ACWN+ uses a switched-capacitor SAR architecture followed by a CMOS DAC; the track-and-hold acquires the analog input during the first clock cycles and holds it constant while the SAR determines the bit pattern. The internal reference is a buried Zener with a low-temperature coefficient; the reference buffer can source/sink the dynamic currents demanded by the DAC without distorting the reference node. Ratiometric conversion is supported by tying REF low and applying a full-scale voltage directly to the AIN pin. Typical applications include digital panel meters, process-control front-ends, portable data loggers, battery chargers with current monitoring, and any microcontroller- or microprocessor-based system requiring an 8-bit analog front-end. The parallel interface maps cleanly onto 8051, PIC, and ARM Cortex-M data buses via simple glue logic or a single I/O port. When designing with this part, observe the manufacturer's acquisition-time recommendations in the AC Electrical Characteristics table and place the analog input bypass capacitor as close as possible to the AIN pin to avoid kickback-induced error. Note that the MAX165ACWN+ is no longer in active production — the CWN commercial-temperature variant is approaching end-of-life, while the MAX165BEWN+ and A/E temperature-grade variants remain active for new designs. This page synthesizes distributor pricing, drop-in same-package alternatives (MAX165BCWN+, MAX165BEWN+, MAX165AEWN+), and practical design notes not found in the manufacturer datasheet alone.
MAX165BCWN - 5µs 8-Bit ADC with Track/Hold, SOIC-18 | Maxim Integrated
The Maxim Integrated MAX165BCWN is a 5µs, 8-bit, microprocessor-compatible analog-to-digital converter (ADC) with an integrated track-and-hold amplifier and internal +1.23V reference, housed in an 18-pin SOIC (Wide, 0.300") package. The device operates from a single +5V supply, accepts a single-ended analog input ranging from 0V to 2×VREF (≈2.46V with internal reference), and provides a parallel 8-bit output word with standard CS and RD interface signals for direct connection to 8-bit microprocessors. An ADC (analog-to-digital converter) is a data-acquisition component that converts continuous analog voltages into discrete digital codes. Within the converter hierarchy, the MAX165 is a successive-approximation-register (SAR) ADC, the dominant topology for medium-speed multi-MHz-to-low-MHz applications because it offers deterministic latency, no pipeline delay, and excellent DC accuracy. SAR ADCs sit beneath the broader categories of data converters and signal-chain ICs, and are commonly used as the final digitizing stage between analog sensors and a host microcontroller or processor. The defining features of the MAX165 include a 5µs conversion time (200 kSPS throughput), an on-chip track/hold capable of acquiring full-scale signals up to 50kHz (386 mV/µs slew rate), and an internal low-drift buried-zener reference. The 18-SOIC wide-body package provides 18 gull-wing pins on 0.300" body width, allowing hand-soldering and easy prototyping. The commercial-grade temperature range (0°C to +70°C) targets bench-top instrumentation, industrial control boards, and embedded data-acquisition systems. Architecturally, the MAX165 uses a capacitive charge-redistribution SAR core with an auto-zeroed input comparator and a track/hold front end, achieving ±1 LSB total unadjusted error and excellent linearity without user calibration. The internal reference is trimmed to ±1% and can be overdriven by an external reference for applications requiring tighter absolute accuracy or a different full-scale range. Typical applications include digital panel meters, portable instrumentation, process-control analog front ends, weigh scales, and embedded data-acquisition cards for 8-bit microcontrollers such as the 8051, 68HC11, or Z80. Designers select the MAX165 specifically when they need an 8-bit ADC with built-in reference and track/hold, parallel interface, and minimal external component count on a single +5V rail. When designing with this part, note that the wide SOIC package and 0.295" (7.5 mm) body width require larger PCB land patterns than the narrow-body SOIC-18. The internal reference pin (REF) should be bypassed with 4.7µF minimum to preserve ADC noise performance, and analog/digital grounds should be tied at a single point under the IC. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single source for evaluating the MAX165BCWN against current sourcing options and modern replacements.
MAX166ACPP - 5µs 8-Bit ADC with T/H and Reference | Maxim Integrated
The Maxim Integrated (Analog Devices) MAX166ACPP is a high-speed, 5µs, 8-bit, microprocessor-compatible analog-to-digital converter (ADC) with an integrated track-and-hold (T/H) amplifier and internal +1.23V reference, housed in a 20-pin PDIP (0.300", 7.62mm) through-hole package. It accepts single-ended input voltages ranging from 0V to 2VREF, supports a +5V single supply, and is offered in the commercial 0°C to +70°C temperature grade. A successive-approximation-register (SAR) ADC is a type of data converter that uses a binary-search algorithm to determine each bit of the digital output in sequence, achieving both high speed and moderate resolution without the latency of integrating topologies. SAR ADCs sit within the broader hierarchy of analog-to-digital converter -> data converter -> signal chain IC -> semiconductor, and remain the architecture of choice for multiplexed data-acquisition systems and microprocessor interfaces because they perform a single conversion on command rather than continuously integrating. The MAX166ACPP key feature set includes a 5µs conversion time, an integrated track-and-hold capable of digitizing full-scale signals up to 50kHz (386 mV/µs slew rate), an internal 1.23V reference (with provision for an external reference), and a parallel 8-bit output bus. Standard CS (chip-select) and RD (read) control signals enable direct, glue-less interfacing to all popular 8-bit microprocessors. The differential-input MAX166 accepts bipolar-style signals up to ±VREF when configured with the appropriate input network. Architecturally, the MAX166 combines a CMOS SAR core with an on-chip T/H and reference buffer to deliver throughput in excess of 140 ksps. The internal reference uses a buried-zener topology for low drift over temperature, and the digital I/O is TTL/CMOS-compatible. Housed in the legacy 20-pin PDIP footprint (7.62mm body width), the MAX166ACPP is well-suited to legacy industrial control boards, retrofit designs, and through-hole prototyping where surface-mount ADCs are not an option. Typical applications include process-control data acquisition boards, multiplexed sensor readout systems, instrumentation front-ends, panel meters, and 8-bit microprocessor analog input modules. The MAX165 single-ended variant is commonly paired with the MAX166 for systems requiring both single-ended and differential channels. When designing with the MAX166ACPP, ensure that VREF decoupling (typically 4.7µF tantalum in parallel with 0.1µF ceramic) is placed close to the REF pin to minimize conversion noise, and that the analog input bandwidth is kept below 50kHz to satisfy the track-and-hold acquisition time. Compared with modern 12-bit SAR ADCs, the MAX166 trades resolution for cost and speed in legacy 8-bit architectures.
MAX166AEPP+ - 8-Bit 200ksps ADC, 5μs, +5V, PDIP-20 | Maxim
The Maxim Integrated MAX166AEPP+ is a high-speed, microprocessor-compatible 8-bit analog-to-digital converter (ADC) with an internal track-and-hold, providing 200 ksps throughput (5 μs conversion time) on a single +5V supply. Housed in a 20-pin PDIP (PDIP-20 / 0.300 inch) through-hole package, it integrates an on-chip +2.46V precision reference and a successive-approximation register (SAR) architecture, eliminating the need for external reference components in many designs. A successive-approximation ADC (SAR ADC) is a type of analog-to-digital converter that uses a binary-search algorithm against an internal DAC to digitize an analog input. SAR ADCs sit within the broader ADC family, between flash converters (fastest, lowest resolution) and sigma-delta converters (highest resolution, lowest speed). They are the workhorse choice for 8 to 16-bit general-purpose data acquisition, multiplexing, industrial control, and embedded instrumentation because they deliver a clean single-shot latency, deterministic timing, and low power. The MAX166AEPP+ belongs to this family, occupying the high-speed, moderate-resolution end of the spectrum. Key features of the MAX166AEPP+ include ±1 LSB total unadjusted error, a 2.46V internal reference with ±1.5% accuracy, ±5V input range with software-configurable unipolar/bipolar modes, and ratiometric conversion capability. Standard CS and RD control signals provide direct interface to 8-bit microprocessors, with a BUSY output flagging conversion start and end. The latched, three-state buffered outputs allow direct connection to a microprocessor data bus without external glue logic. Typical applications include digital signal processing, high-speed data acquisition, telecomm digitizing, process control, and instrumentation-grade analog front ends. The internal reference and T/H make it suitable for systems where board area and external BOM count must be minimized. When designing with this part, ensure the analog input signal bandwidth is below the T/H acquisition limit and that the +5V supply is well decoupled. The 5 μs conversion time directly limits maximum sample rate to 200 ksps.
MAX166AEWP - 8-Bit 200ksps SAR ADC | Maxim Integrated
The Maxim Integrated MAX166AEWP is a CMOS, μP-compatible 8-bit successive-approximation analog-to-digital converter (ADC) with a 5 μs conversion time and a 200 ksamples/s sample rate, housed in a 20-pin SO (SOIC-20, 0.300 inch) wide-body package. It integrates an internal track-and-hold amplifier and a buried-zener or bandgap-derived precision reference, providing an input range of 0 V to 2.46 V (or 0 V to 5 V when configured with external reference) from a single +5 V analog supply plus a digital supply that may range from +4.75 V to +5.25 V. The MAX166AEWP delivers ±1/2 LSB linearity, ±1 LSB total unadjusted error, and a track/hold bandwidth of approximately 4 MHz, with low power consumption around 4 mA active and 1 μA power-down for battery-aware designs. An 8-bit successive-approximation ADC (SAR ADC) is a type of data converter that converts an analog input voltage into an 8-bit digital code through a binary-search algorithm executed in N clock cycles (here, ~8 × 500 ns). SAR ADCs sit in the broader hierarchy: ADC → data converter → mixed-signal IC → semiconductor. They are favored over flash ADCs for moderate resolution at low power, and over integrating ADCs for higher sampling rates, making them ideal for embedded systems that need to digitize several analog channels without excessive processor overhead. Key features of the MAX166AEWP include a parallel output interface that simplifies connection to microprocessors and DSPs, an asynchronous RD and CS handshake for memory-mapped or port-mapped operation, and a hardware power-down pin that drops quiescent current to microamp levels for portable instrumentation. The track/hold front-end samples full-scale input transitions without slewing distortion up to the rated 200 ksamples/s, while the internal reference saves board space compared to discrete-resistor or external-reference designs. Typical applications include industrial process-control front ends, data-acquisition front ends for 8-bit instrumentation, portable battery-powered metering, multiplexed data-logger channels, and digital-signal-processor (DSP) analog front ends. Industrial temperature-grade variants such as the MAX166AEWP-T operate from -40 °C to +85 °C, supporting factory-floor deployment. When designing with the MAX166AEWP, ensure the analog input source can drive the track/hold sampling capacitor without attenuation - an op-amp buffer is recommended for high-impedance sources. Decouple both AVDD and DVDD separately with 0.1 μF ceramic capacitors placed within 5 mm of the supply pins, and place the input trace away from noisy digital output lines to preserve 8-bit accuracy.
MAX166BEPP - 5µs 8-Bit µP-Compatible ADC with T/H | Maxim Integrated
The Maxim Integrated MAX166BEPP is a high-speed, microprocessor (µP)-compatible 8-bit analog-to-digital converter (ADC) with a 5 µs conversion time, integrated track/hold (T/H), and internal reference, housed in a 20-pin PDIP (EPP) package. What is an ADC? An analog-to-digital converter is a data-conversion integrated circuit that samples a continuous analog input voltage and converts it into a discrete digital code. The MAX166BEPP belongs to the successive-approximation-register (SAR) ADC family, which sits within the broader data-converter IC category, itself a sub-category of signal-chain semiconductors. The µP-compatible output bus and 8-bit resolution make it a classic component for embedded data-acquisition front-ends. Key features include a 5 µs (typical) conversion time, on-chip track/hold that supports input signals up to 50 kHz (386 mV/µs slew rate), a built-in +2.5 V reference, and low power dissipation. The parallel data interface uses standard microprocessor read cycles, allowing the ADC to be memory-mapped or port-mapped directly to common 8-bit controllers and DSPs of its era. The MAX166 architecture uses a successive-approximation register with a capacitive-charge redistribution DAC array. The integrated T/H eliminates the need for an external sample-and-hold amplifier, simplifying the analog front-end. Operating from a single +5 V supply (with an optional -5 V for bipolar input ranges), the part consumes roughly 70 mW during active conversion. Typical applications include digital signal processing front-ends, process control data acquisition, portable instrumentation, and anywhere a microcontroller needs a compact 8-bit analog input channel. When designing with the MAX166BEPP, ensure the analog input is driven by a low-impedance source (a buffer amp is recommended) to avoid sample-rate-dependent gain errors. The reference decoupling capacitor and the supply bypass layout directly affect the noise floor at low signal levels. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the Maxim datasheet alone.
MAX166BEWP - 8-Bit 200ksps 5µs ADC + 2.46V Ref | Maxim Integrated
The Analog Devices (formerly Maxim Integrated) MAX166BEWP is a CMOS, microprocessor-compatible, 8-bit successive-approximation analog-to-digital converter (ADC) with an integrated track/hold and an internal 2.46 V reference, packaged in a 20-pin SOIC (0.300 inch wide). It converts a single analog input channel in 5 µs (200 ksps) and exposes a parallel 8-bit data bus directly to an 8-bit microcontroller or system I/O port through standard CS and RD control signals. A BUSY output flags the start and end of each conversion, while the latched, three-state-buffered data outputs allow direct connection to a shared µP data bus. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts a continuous analog voltage into a discrete digital code. Successive-approximation-register (SAR) ADCs such as the MAX166 combine a sample-and-hold front-end, an internal DAC, and a comparator to perform one bit per clock cycle, yielding deterministic latency and excellent DC linearity for multiplexed data-acquisition and process-control front ends. Within the broader taxonomy, the MAX166 sits at: ADC -> data converter -> mixed-signal IC -> semiconductor. Key features of the MAX166 include 5 µs conversion time (200 ksps throughput), an internal 2.46 V bandgap reference, a single +5 V supply operation, and an on-chip track/hold that removes the need for an external sample-and-hold amplifier. The interface is a multiplexed /CS, /RD, /BUSY handshake, and the part is specified over the -40 °C to +85 °C industrial temperature range. Three-state latched outputs ease bus sharing across multiple peripherals. Architecturally, the MAX166 uses a switched-capacitor charge-redistribution DAC core, which is why the track/hold can be co-integrated with the comparator and reference without the linearity penalty of older resistor-string designs. The internal reference provides low drift over temperature, simplifying analog front-end design and removing external trim steps in production. Compared with flash ADCs of equivalent resolution, the MAX166's SAR topology trades conversion speed for substantially lower power consumption and much smaller die area. Typical applications include process-control front ends, portable data loggers, industrial instrumentation, remote sensor readback, panel-meter designs, and embedded µP data-acquisition boards where deterministic conversion latency and direct bus interface matter more than multi-Msample throughput. The 20-pin SOIC footprint also supports hand-prototyping and breadboarding without fine-pitch assembly. When designing with this part, place a 0.1 µF ceramic bypass capacitor directly across VDD and AGND as close to the pins as possible, and keep analog input traces short and guarded to limit digital coupling. Ensure the µP completes a read of the result register before the next conversion finishes, or use the BUSY line to gate access and avoid bus contention. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet, helping engineers select, source, and qualify the MAX166BEWP for production designs.
MAX166CEPP - 5us 8-Bit ADC w/ T/H + Reference | PDIP-20 | Maxim
The Maxim Integrated (now Analog Devices) MAX166CEPP is a 5-microsecond, 8-bit analog-to-digital converter with an integrated track-and-hold amplifier and on-chip voltage reference, housed in a 20-pin PDIP through-hole package. The part delivers 200 ksps throughput over a single +5V analog supply with low-power CMOS construction and an architecture based on successive approximation. An 8-bit ADC (analog-to-digital converter) is a mixed-signal integrated circuit that quantizes an analog input voltage into one of 256 discrete digital codes, sitting in the broader hierarchy of data converter (ADC/DAC) -> mixed-signal IC -> semiconductor. The MAX166 belongs to the successive-approximation-register (SAR) family, the dominant topology for medium-speed, medium-resolution conversion in microprocessored systems because of its deterministic latency and ease of microprocessor interfacing. Key features include 5 us typical conversion time (200 ksps throughput), on-chip +2.46V reference (max 50 ppm/C drift), track/hold with 50 ns acquisition time, ratiometric operation, three-state latched outputs, BUSY/INT signal, and standard CS and RD control for direct 8-bit microprocessor bus connection. The single +5V supply eliminates the need for a negative rail, simplifying analog front-end design. The MAX165/MAX166 family uses a switched-capacitor charge-redistribution DAC, a precision comparator, and a buried-zener-style reference to achieve total unadjusted error of +/-1 LSB. Three-state latched outputs and standard CS/RD/WR controls allow direct glue-less connection to 8080, 68xx, Z80, and similar 8-bit buses without external latches. Typical applications include industrial process control loop digitizing, portable data-acquisition front ends, DSP analog front ends, and battery-powered instrumentation. The low 2.5 mA operating current and 1 mA power-down mode also make it suitable for hand-held meters where battery life is critical. When designing with this part, mind the analog/digital ground split: tie AGND and DGND together at a single point near the package to avoid digital ground currents corrupting conversion accuracy. Add a 10 uF bypass close to VDD and keep the analog input trace short. This page synthesizes distributor inventory, drop-in SAR-ADC alternatives, and a pinout reference for the DIP-20 footprint - all consolidated on a single verified page that individual datasheet PDFs and distributor listings do not provide.
MAX166CEWP - 8-Bit 200ksps SAR ADC with T/H & Reference | Maxim
The Maxim Integrated (now Analog Devices) MAX166CEWP is a CMOS, μP-compatible, 8-bit successive-approximation analog-to-digital converter (SAR ADC) with 200 ksps throughput, an internal track-and-hold amplifier, and an on-chip 2.46 V bandgap reference, housed in a 20-pin SO (wide SOIC, 0.300 inch) package. A successive-approximation ADC is a type of data converter that uses a binary-search algorithm against an internal precision reference to digitize an analog input. The SAR architecture, combined with an integrated track-and-hold, delivers a 5 μs conversion time plus acquisition time while eliminating the need for an external reference. The MAX166 occupies a defined place in the signal-chain hierarchy: ADC → data converter → mixed-signal IC → semiconductor. Key features include a single 5 V analog supply (with separate analog and digital grounds), an 8-bit parallel microprocessor interface with three-state latched outputs, standard chip-select (CS) and read (RD) control inputs, a BUSY status output, and an input range of 0 V to 2.46 V (or 0 V to VREF when an external reference is driven into the REF pin). Throughput is 200 ksps, conversion time is 5 μs, and the operating temperature range is -40 °C to +85 °C (C-grade / commercial-industrial). Typical applications include process-control data acquisition, portable instrumentation, isolated industrial front ends, and embedded 8-bit microcontroller analog input modules where a small, reference-inclusive ADC simplifies the BOM and saves PCB area. Because the reference and T/H are integrated, the MAX166 is a strong fit for 4 mA-to-20 mA loop digitization through a single op-amp front end. When designing with this device, place the 10 μF/0.1 μF decoupling pair as close as possible to VDD and AGND, keep the analog input trace short and guarded, and tie unused digital outputs (DB0-DB7) high through pull-ups if the bus will be shared with other peripherals. The MAX166C variant (commercial temperature range) is pin-compatible with the MAX166E extended-temperature version and with the MAX165 family. This page consolidates distributor stock, parametric comparison, and PCB design notes that supplement the manufacturer datasheet with selection and sourcing context.