ADC/DAC
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MAX1165AEUI+ - 16-Bit Low-Power SAR ADC | Maxim Integrated
The Maxim Integrated MAX1165AEUI+ is a 16-bit, low-power, successive-approximation analog-to-digital converter (SAR ADC) with a parallel interface, housed in a 28-pin TSSOP package. It operates from a single 4.75V to 5.25V analog supply and a separate 2.7V to 5.25V digital supply, supporting throughput rates up to 165 ksps with automatic power-down between conversions to reduce average current draw. The part provides ±1 LSB INL (max), 100 dB SINAD, and a true-differential analog input stage with ±10V (MAX1165) or 0 to +10V (MAX1166) input ranges, selectable via software. A SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of data converter that resolves each conversion in a fixed number of clock cycles by successively comparing the sampled input against an internal binary-weighted capacitor DAC. SAR ADCs sit between flash and delta-sigma converters in the speed/resolution hierarchy: faster than delta-sigma at moderate resolution, much lower power than flash, and inherently free of pipeline latency. They are widely used in industrial process control, instrumentation, and data-acquisition front-ends where one conversion per sample is required. Key features of the MAX1165AEUI+ include ±1 LSB DNL (no missing codes), an internal 4.096V bandgap reference with the option to use an external reference, a hardware RDY/INT output, and an SPI-/QSPI-/MICROWIRE-compatible serial-mode option (selected at power-up via the INT/EOC pin). The reference architecture lets designers trade absolute accuracy against input range, and the internal oscillator eliminates the need for an external clock in many systems. The 28-TSSOP footprint makes it PCB-friendly for both hand prototyping and high-density acquisition modules. The MAX1165AEUI+ uses a charge-redistribution DAC with input T/H and auto-calibration on every conversion, giving excellent AC and DC performance across temperature. Power-down between conversions reduces supply current to under 1 mA in idle, making the device attractive for battery-backed instrumentation. The parallel interface allows direct connection to microcontrollers and DSPs without serial glue logic, and the asynchronous RDY signal simplifies interrupt-driven sampling. Typical applications include multi-channel PLC analog input modules, weigh-scale front-ends, transducer signal conditioning, and portable data loggers. The wide ±10V true-differential input range eliminates external signal-conditioning op-amps in many 4-20 mA-style loops, and the 165 ksps rate is sufficient for vibration analysis and motor-control current sensing. Designers commonly pair it with a precision op-amp buffer (MAX4475) and an isolated DC/DC to build complete 16-bit acquisition channels. When designing with the MAX1165AEUI+, ensure the analog and digital supplies are decoupled with separate 0.1 µF ceramic capacitors placed close to the AVCC and DVCC pins. The REF pin requires a 4.7 µF ceramic or tantalum bypass cap to meet the 100 dB SINAD specification; a smaller capacitor will degrade noise performance. Always read the RDY/INT pin via level-triggered interrupts rather than polling to avoid missed conversions at the full 165 ksps rate. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet — including same-brand family members like MAX1165ACUI+ and cross-brand pin-compatible ADCs from Analog Devices and TI.
MAX1165AEUI+T - 16-Bit 200ksps Low-Power SAR ADC | Maxim Integrated
The Maxim Integrated MAX1165AEUI+T is a 16-bit, low-power, successive-approximation analog-to-digital converter (ADC) with automatic power-down, a parallel interface, and a 200 ksps sampling rate, housed in a 28-pin TSSOP (EUI) package. It operates from a single +5V analog supply and a separate +3V to +5V digital supply, supports a unipolar 0 to +10V (MAX1165) or 0 to +5V (MAX1166) true-differential input range, and integrates a track-and-hold, clock, and internal 4.096V reference. A successive-approximation register (SAR) ADC is a class of Nyquist-rate converter that uses an internal binary-search algorithm to step a comparator-controlled DAC toward the analog input, producing one conversion per N clock cycles for N bits of resolution. The SAR architecture combines high accuracy with deterministic latency, which makes it well suited to multiplexed data-acquisition front ends, industrial process control loops, and any system that requires a stable per-sample latency without the pipeline delay of higher-speed flash or pipelined converters. The MAX1165AEUI+T belongs to the broader hierarchy of analog-to-digital converter -> data converter -> signal-chain IC -> semiconductor. Key features include 16-bit resolution with no missing codes, ±1.0 LSB INL and ±1.0 LSB DNL (max), a 100 kHz sinad of 86 dB, an internal +4.096V reference, and automatic power-down that reduces supply current to under 10 µA between conversions at reduced throughput. The parallel interface provides 8-/16-bit bus-compatible read cycles, simplifying connection to standard microcontrollers, FPGAs, and DSPs without a serial-port block. The internal reference and compact 28-pin TSSOP footprint reduce external BOM count and PCB area versus discrete ADC designs. Typical applications include data-acquisition systems, pen-digitizers and touch-screen controllers, battery-powered portable instruments, industrial process control, and digital signal processing front ends where deterministic latency, 16-bit resolution, and low power dissipation are required. Designers should connect AGND and DGND at a single low-impedance point, bypass AVDD and DVDD with 0.1 µF and 10 µF capacitors placed close to the pins, and respect the reference-bypass capacitor placement to achieve the datasheet-noise performance.
MAX1165BEUI+ - 16-Bit 200ksps SAR ADC, TSSOP-28 | Maxim Integrated
The Maxim Integrated (Analog Devices) MAX1165BEUI+ is a 16-bit, low-power, successive-approximation analog-to-digital converter (SAR ADC) with a 16-bit-wide parallel interface, housed in a 28-pin TSSOP package. It supports up to 200 ksps throughput, automatic power-down, a factory-trimmed internal clock, and an on-chip +4.096V reference. The MAX1165BEUI+ is the E-grade (commercial, 0C to +70C) version of the MAX1165 family; the B/C grade variants offer extended temperature ranges, and the MAX1166 variant uses a serial interface. An SAR ADC is a type of data converter that uses a successive-approximation algorithm to convert an analog input voltage to a digital code one bit at a time using a binary-search process across an internal DAC and comparator. SAR ADCs sit in the broader data-converter hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. They are prized for their low latency, deterministic acquisition, and excellent DC accuracy, making them ideal for multiplexed data-acquisition systems, instrumentation, and industrial process control. Key features of the MAX1165BEUI+ include a 16-bit resolution with no missing codes, ±1 LSB INL (max), ±1 LSB DNL (max), a single +5V analog supply, an analog input range of 0V to VREF, and a parallel 16-bit output bus. The device draws only 4.5 mA (typ) at 200 ksps and drops to 1 µA (typ) in power-down mode, enabling battery-friendly designs. The integrated 4.096V reference eliminates an external component in many designs, while the factory-trimmed internal oscillator removes the need for an external clock source. Architecturally, the MAX1165BEUI+ combines a capacitive-charge-distribution DAC, a high-bandwidth comparator, a successive-approximation register, and a precision bandgap reference. The track-and-hold amplifier acquires the input in 1.5 clock cycles, and the conversion completes in 16 clocks, giving a deterministic latency suitable for closed-loop control. The internal reference achieves ±0.5% initial accuracy and 30 ppm/C drift. Typical applications include multi-channel data-acquisition systems, pen digitizers, portable instrumentation, medical instrumentation, process control, and signal monitoring. The wide parallel bus enables direct connection to microcontrollers and DSPs without glue logic. When designing with this device, ensure the analog input is buffered if its source impedance exceeds 1 kΩ to avoid conversion errors. Place the bypass capacitors (10 µF tantalum + 0.1 µF ceramic) as close to AVDD and DVDD as possible, and keep analog and digital grounds separated to minimize digital-induced noise on the analog input. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
MAX1165BEUI+T - 16-Bit 165ksps Low-Power SAR ADC | Maxim Integrated
The Maxim Integrated MAX1165BEUI+T (Analog Devices Inc./Maxim Integrated) is a 16-bit, low-power, successive-approximation analog-to-digital converter (SAR ADC) with 16-bit wide parallel interface, delivering up to 165 ksps sampling rate in a 28-pin TSSOP package. It supports a single 5V analog supply, integrates a factory-trimmed internal 4.096V reference (also accepts an external reference), and provides automatic power-down (AutoShutdown) that reduces supply current to 0.1 mA at 10 ksps. The device operates from 4.75V to 5.25V with full-scale input range of 0 to VREF, and consumes only 1.8 mA at 165 ksps with an external reference. A successive-approximation register ADC (SAR ADC) is a type of data converter that resolves a single analog sample into a digital code through a binary-search algorithm across N clock cycles, producing one conversion per acquisition cycle. SAR ADCs are valued for their deterministic latency, intrinsic accuracy, low power consumption, and ease of use because they require no complex external sample-rate clocks. They sit within the broader data-converter hierarchy of ADC -> data converter -> signal-chain IC -> analog/mixed-signal IC, and are the workhorse of industrial instrumentation, multi-channel data acquisition, and precision sensor read-out systems. The MAX1165BEUI+T integrates a precision internal voltage reference, a wide parallel digital bus, and automatic power management. The 16-bit parallel interface simplifies connection to FPGAs, CPLDs, and high-performance microcontrollers, eliminating the timing overhead of serial peripherals. An external reference input allows system designers to optimize noise, drift, and full-scale range for specific transducer bridges or sensor outputs. The 28-pin TSSOP surface-mount package supports standard 0.65mm pitch PCB assembly and is compatible with automated pick-and-place production lines. Typical applications include industrial process control, multi-channel data-acquisition systems, portable instrumentation, and precision sensor signal conditioning. The combination of low operating power (1.8 mA at full speed) and aggressive power-down (0.1 mA at 10 ksps) makes it suitable for battery-powered measurement equipment where throughput is dominated by short bursts of acquisition separated by long idle intervals. Designers also use the part in optical sensor front ends, weigh scales, and medical instrumentation front-ends. When designing with this prototype, ensure the analog supply rail is properly decoupled close to the AVDD pin with a 10uF tantalum and 0.1uF ceramic pair, and that the reference decoupling capacitor (typically 10uF) is placed adjacent to the REF pin to absorb reference-charge glitches during conversion. The CONVST input must be a clean logic signal because internal switching transients may be re-coupled to the analog input if the sample-and-hold acquisition time is not respected. This page synthesizes distributor pricing, drop-in same-brand alternatives, design notes, and pinout detail not presented together in the manufacturer datasheet - a concise, source-backed reference for engineers.
MAX1166ACUP+T - 16-Bit 200ksps Low-Power SAR ADC | Maxim Integrated
The Maxim Integrated MAX1166ACUP+T (now ADI / Maxim Integrated) is a 16-bit, low-power, successive-approximation analog-to-digital converter (SAR ADC) with a parallel interface, housed in a 20-pin TSSOP package. It operates from a single +5V analog supply, accepts a 0V to +10V or bipolar analog input range, and delivers up to 200 ksps throughput while consuming only 2.5 mA typical operating current. The device includes an automatic power-down mode that drops supply current to under 1 mA between conversions, making it ideal for battery-powered data acquisition front ends. A successive-approximation ADC (SAR ADC) is a sampling converter that uses a binary-search algorithm against an internal precision DAC to resolve the analog input to N bits in N clock cycles. SAR ADCs combine the simplicity of a single analog input with deterministic latency, no pipeline delay, and excellent DC accuracy - the architecture is a member of the data converter family within the broader analog-to-digital converter hierarchy, which includes sigma-delta, pipeline, and flash converters. Key specifications include 16-bit resolution with no missing codes, an on-chip +4.096V reference, a 4-channel input multiplexer on the MAX1166 (single-ended or pseudo-differential), hardware-configurable unipolar/bipolar input ranges, and a parallel digital output bus. The internal reference is trimmed to 0.01% initial accuracy, eliminating the need for an external precision reference in many designs. An on-chip clock generator and sample/hold amplifier further minimize external component count. The MAX1166 uses a charge-redistribution DAC array followed by a low-noise comparator and successive-approximation register, all clocked by either the internal oscillator or an external clock applied at the CONVST/TMODE pin. Power-down between conversions is automatic and transparent to the user: a single CONVST rising edge initiates acquisition and conversion in one piece, after which the part returns to its nap state automatically. Typical applications include portable industrial data loggers, battery-powered sensor signal chains (strain gauge, thermocouple, RTD), medical instrumentation front ends, automotive sensor readback, and process-control analog input cards. The integrated reference and 4-channel input scan capability allow a complete 4-channel, 16-bit data acquisition front end to be built with a single IC plus a few passives. When designing with this part, pay attention to input protection: the analog input pins tolerate overvoltage to +/-16V with proper external clamping, and the digital supply (DVDD) should be derived from a clean 2.7V to 5.25V source to avoid coupling logic noise into the conversion result. Decouple AVDD with 10uF + 0.1uF ceramic at the pin. This page synthesizes distributor pricing, drop-in alternatives within the MAX1165/MAX1166 family, and practical PCB-level design notes that complement the manufacturer datasheet.
MAX1167C/D+ - 16-Bit 200ksps SAR ADC Die | Maxim Integrated
The Maxim Integrated MAX1167C/D+ (now part of Analog Devices) is a 16-bit, low-power, successive-approximation-register (SAR) analog-to-digital converter (ADC) supplied as an unpackaged die (D suffix). It integrates 4 analog input channels and a 1:1 sample-and-hold (S/H) to ADC architecture, enabling simultaneous-sampling-free, sequential-channel acquisition at up to 200 ksps aggregate throughput. The die-level form factor is intended for hybrid-module assemblies and chip-on-board (COB) designs where board area is at a premium and a conventional QSOP-16 package is not viable. An SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a Nyquist-rate data converter that uses a binary-search algorithm against an internal precision DAC to digitize an analog input in N conversion cycles for N bits of resolution. Within the broader data-converter taxonomy, the SAR ADC sits between flash converters (faster, lower resolution) and sigma-delta converters (higher resolution, lower bandwidth). Compared to sigma-delta ADCs of similar resolution, SAR converters offer deterministic latency and zero-latency single-shot conversion, which is critical for multiplexed multi-channel systems and control loops. The MAX1167 therefore belongs to the precision data acquisition IC class within the signal-chain hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. Key specifications include 16-bit resolution with no missing codes, 200 ksps maximum sampling rate, 4 single-ended analog input channels, an analog supply range of 4.75 V to 5.25 V, and a digital supply range of 2.7 V to 5.25 V that simplifies interfacing to 3.3 V or 5 V microcontrollers without level shifters. The architecture provides true 16-bit performance with integrated track-and-hold, reducing external component count and settling-time concerns typical of discrete S/H designs. The die is rated for the industrial -40C to +85C operating range. Typical uses include portable instrumentation, multi-channel data-acquisition front ends, process-control I/O modules, and medical patient-monitoring equipment where four single-ended sensor inputs must be digitized sequentially at high resolution. Designers also deploy this part in factory-automation analog input modules and panel-meter designs that benefit from a small die footprint and the low power dissipation characteristic of SAR converters. When designing with the MAX1167C/D+, note that the die variant requires special handling for die attach and encapsulation, and that the QSOP-16 packaged counterpart MAX1167CEEE+ should be selected for conventional SMT board assembly. Reference voltages, decoupling capacitors, and ground plane recommendations in the manufacturer datasheet apply to both package options. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not consolidated in the manufacturer datasheet alone.
MAX1167CCEE+ - 16-Bit 200ksps 4-Channel SAR ADC | Maxim Integrated
The Maxim Integrated MAX1167CCEE+ is a low-power, multichannel, 16-bit, 200ksps successive-approximation analog-to-digital converter (ADC) that integrates a precision +4.096V reference, a reference buffer, an internal oscillator, automatic power-down circuitry, and a high-speed SPI-compatible serial interface, all in a 16-pin QSOP package. The device accepts four single-ended analog input channels selected through a digital multiplexer, with on-chip sequencing that enables autonomous scanning of all four inputs at full throughput. A successive-approximation ADC (SAR ADC) is a type of analog-to-digital converter that uses a binary-search algorithm against a precision reference voltage. SAR ADCs are prized for their deterministic latency, low power consumption, and excellent DC accuracy, occupying a middle ground between flash converters (fast but power-hungry) and sigma-delta converters (high resolution but slow). In the broader taxonomy, the MAX1167 belongs to the precision-data-acquisition family of mixed-signal ICs, sitting between sensor-conditioning front ends and downstream microprocessors or DSPs. Key features include 16-bit no-missing-codes performance, 200k samples-per-second throughput, ±1 LSB INL (max), and an integrated +4.096V reference with a buffered output capable of driving external circuitry. The IC operates from a single 4.75V to 5.25V analog supply and a separate 2.7V to 5.25V digital supply for digital-logic level shifting. Per-channel data averaging, on-chip digital filtering, and automatic channel scanning further reduce host-processor overhead. Per-channel analog and digital supplies are also pinned out independently for noise isolation. A typical SPI frame is 24 clocks long and carries 16 bits of conversion data plus channel and status bits, allowing direct connection to microcontrollers and DSPs at clock rates up to 4.8 MHz. The MAX1167's power consumption scales with throughput thanks to its automatic power-down between conversions, drawing microamp-level standby current while idle. A hardware RESET pin and software power-down mode round out the user interface. Typical applications include data acquisition systems, industrial process control, portable instrumentation, and multichannel sensor monitoring where the integrated reference, small PCB footprint, and 4-channel input mux reduce bill-of-materials cost. Engineers frequently select this part for weigh scales, temperature-pressure-flow sensor digitizers, and battery-powered patient monitors where low standby current extends run time. When designing with this device, allocate separate analog and digital ground planes joined at a single point beneath the IC, and bypass each analog supply pin with a 0.1uF ceramic capacitor placed within 2 mm of the pin. The internal +4.096V reference is suitable for ratiometric measurements but should be externally buffered if more than 1 mA is drawn from REFOUT. Ensure the SPI clock does not exceed 4.8 MHz to avoid violating the internal timing budget. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not consolidated in the manufacturer datasheet.
MAX1169CCUD+ - 16-Bit 58.6ksps SAR ADC, I2C, 14-TSSOP | Maxim Integrated
The Analog Devices (formerly Maxim Integrated) MAX1169CCUD+ is a low-power 16-bit successive-approximation register (SAR) analog-to-digital converter (ADC) with a 58.6 ksps maximum sampling rate, an on-chip 4 MHz internal clock, a +4.096V internal reference, automatic power-down between conversions, and an I2C-compatible 2-wire serial interface supporting both Fast-mode (400 kHz) and High-Speed-mode (3.4 MHz) operation, all housed in a 14-pin TSSOP package rated for the 0°C to +70°C commercial temperature range. A SAR ADC is a successive-approximation-register analog-to-digital converter, a subtype of data converter that performs a binary search against the analog input using an internal DAC and comparator to resolve each bit in N clock cycles for N-bit resolution. SAR ADCs sit under the broader hierarchy of analog-to-digital converter -> data converter -> signal chain IC -> mixed-signal semiconductor. The MAX1169's 16-bit SAR architecture delivers zero-latency single-shot conversion, deterministic latency, and excellent DC accuracy, making it the preferred topology for multiplexed data acquisition, sensor readouts, and instrumentation front ends where the absence of pipeline delay simplifies firmware timing. Key features of the MAX1169CCUD+ include a true-differential analog input pair, an integrated +4.096V reference (also externally overridable), 8 analog input channels via an on-chip analog multiplexer, automatic hardware power-down that drops the supply current to a few microamps between conversions, an external clock option for applications requiring deterministic sampling, and a wide +2.7V to +5.25V analog supply range that simplifies interfacing with both 3.3V and 5V microcontrollers. The internal reference provides a stable conversion scale without the cost and board area of an external precision reference. The device architecture combines a capacitive-charge-distribution DAC, a high-gain comparator, and a successive-approximation register clocked by either the internal 4 MHz oscillator or an external clock. The I2C interface includes a 7-bit slave address and supports standard read/write, sequential read, and write/read combined transactions for efficient register programming and data retrieval. Power consumption at 58.6 ksps is approximately 1.2 mW from a 5V supply, falling to under 10 µW in the automatic power-down state. Typical applications include portable and battery-powered data loggers, 4 mA to 20 mA industrial sensor front ends, loop-powered transmitters, medical instrumentation front ends, weigh scales, panel meters, and any precision monitoring application requiring 16-bit resolution at modest sampling rates. The wide supply range and integrated reference simplify power-tree design in space-constrained modules. When designing with the MAX1169CCUD+, ensure that the analog and digital grounds are tied at a single star point to avoid ground-loop noise coupling into the reference, use a 0.1 µF ceramic bypass capacitor as close as possible to the AVDD pin, and oversample and average in firmware if you need ENOB beyond the 16-bit headline resolution. The device is part of the pin-compatible MAX1167/MAX1169 family, allowing migration to lower-cost 12-bit variants if 16-bit resolution is not required. This page synthesizes real-time distributor pricing, drop-in pin-compatible alternatives, and application-level design considerations that are not consolidated on the manufacturer datasheet, providing an information-gain layer for engineers selecting or replacing the MAX1169CCUD+ in precision data-acquisition designs.
MAX116CAX - 12-Bit, 2x4-Ch Simultaneous-Sampling ADC | Maxim
The Maxim Integrated (now Analog Devices) MAX116CAX is a 12-bit, 2x4-channel, simultaneous-sampling analog-to-digital converter (ADC) housed in a 36-pin SSOP (CAX) package with industrial temperature grading and gull-wing leads. It integrates four sample-and-hold (T/H) amplifiers that acquire two multiplexed inputs each, providing eight single-ended channels total, and supports throughput of 390 ksps at 1 active channel, scaling down to 116 ksps when all four channels are sampled simultaneously. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous analog voltages into discrete digital codes, and the simultaneous-sampling sub-category specifically uses one SAMPLE-and-hold per channel so that all channels are captured at the exact same instant. This is in contrast to multichannel ADCs that use a single shared SAMPLE-and-hold and sequentially scan channels - which introduces time skew between channels. Simultaneous-sampling ADCs sit hierarchically inside the data-converter IC family, which itself belongs to the broader mixed-signal / data acquisition (DAQ) IC category, ultimately under power management and signal-chain semiconductors. Key features of the MAX116CAX include a 2 microsecond per-channel conversion time, 8 single-ended analog inputs organized as two 4-channel multiplexed banks, an industry-standard successive-approximation register (SAR) architecture, a 36-pin SSOP surface-mount package, and industrial (-40C to +85C) operating temperature range. The successive-approximation architecture provides deterministic latency and inherent robustness in noisy industrial environments compared to delta-sigma converters that require complex digital filtering. The MAX116CAX uses an SAR core clocked from an external crystal or clock source, with an internal reference and channel-selection logic. Four matched track-and-hold blocks feed the SAR core via an internal analog multiplexer, allowing all four channels to be digitized in one conversion cycle with no inter-channel timing skew. This architecture is critical for phase-sensitive applications such as power-line monitoring, motor control, and multi-phase vibration analysis where the relative amplitude and phase between signals carries the engineering meaning. Typical applications include three-phase power monitoring and metering, motor control current/voltage sensing, multi-axis inertial and vibration measurement, industrial process control multi-channel DAQ, and instrumentation requiring correlated multi-channel sampling. Engineers select this part when phase coherence between channels matters more than raw single-channel speed. Design considerations include providing adequate bypass capacitance on AVDD/DVDDDVDDVDD rails, ensuring the analog inputs remain within the common-mode range of the track-and-hold amplifiers, and respecting the aperture-time matching spec between channels. The 36-pin SSOP package has moderate thermal resistance suitable for industrial environments but should be paired with a ground plane for digital-noise isolation. This page synthesizes distributor pricing, parametric comparison, drop-in alternatives, and practical design notes for the MAX116CAX that go beyond the manufacturer datasheet alone.
MAX116EAX - 2x4-Channel 12-Bit Simultaneous-Sampling ADC | Maxim
The Maxim Integrated MAX116EAX is a 2x4-channel, simultaneous-sampling 12-bit analog-to-digital converter (ADC) housed in a 36-pin SSOP package. It integrates four track-and-hold amplifiers with two multiplexed inputs (eight single-ended inputs total), supports throughput up to 390 ksps on a single channel, and delivers 2 us conversion time per channel with a successive-approximation architecture. What is a simultaneous-sampling ADC? A simultaneous-sampling ADC is a converter that captures multiple analog input channels at exactly the same instant using per-channel track-and-hold (T/H) amplifiers, then digitizes them sequentially through a single ADC core. This preserves the relative phase information between channels - critical in motor control, three-phase power, multi-axis vibration and synchronized instrumentation applications where skew between channels would corrupt measurement. The simultaneous-sampling topology sits within the broader data-acquisition IC family, which itself falls under signal-chain ICs in power and signal management. Key features of the MAX116EAX include 2 us per-channel conversion time, a +5V single supply, internal 2.5V reference (with external override option), software-configurable unipolar/bipolar input ranges, and an industrial operating temperature range of -40 C to +85 C. Throughput degrades gracefully with active channels: 390 ksps (1 ch), 218 ksps (2 ch), 152 ksps (3 ch), and 116 ksps (4 ch). The architecture pairs four dedicated T/H amplifiers ahead of an input mux and a 12-bit SAR ADC. Each T/H captures a sample at the same acquisition clock edge; the mux then sweeps the held voltages sequentially into the SAR core, producing 12-bit results with no inter-channel skew between acquisition instants. Software mode selection sets channel count, input range, and power-down behavior. Typical applications include three-phase motor current sensing, multi-axis vibration and motion analysis, synchronized instrumentation in industrial process control, and multi-channel data-acquisition front-ends. Engineers select it when phase-accurate sampling across channels matters more than raw single-channel throughput. When designing in this part, ensure the analog inputs remain within the configured input range and that the host allocates enough acquisition time for the maximum channel count at the desired throughput. The internal reference can be bypassed for an external reference when system accuracy demands tighter drift performance than the internal 2.5V source provides. This page synthesizes authorized distributor pricing, same-family drop-in alternatives, and practical design notes not consolidated on the manufacturer datasheet front page.
MAX116EAX+ - 12-Bit 8-Channel Simultaneous-Sampling ADC | Maxim
The Maxim Integrated (now Analog Devices) MAX116EAX+ is a 2x4-channel, simultaneous-sampling 12-bit analog-to-digital converter (ADC) housed in a 36-pin SSOP package, designed for multi-channel data acquisition systems requiring synchronized sampling. It integrates four track-and-hold (T/H) amplifiers with two multiplexed inputs per T/H, providing eight single-ended analog inputs total, and supports throughput rates of 390 ksps (1 channel), 218 ksps (2 channels), 152 ksps (3 channels), and 116 ksps (4 channels) with a 2 us conversion time per channel. What is an ADC? An analog-to-digital converter (ADC) is a semiconductor device that transforms continuous analog voltage signals into discrete digital codes suitable for processing by microcontrollers, DSPs, or FPGAs. The MAX116EAX+ belongs to the successive-approximation register (SAR) ADC family, which trades conversion speed for high resolution and low power consumption. In the broader signal-chain taxonomy, this part sits as: ADC -> data converter -> data acquisition IC -> mixed-signal semiconductor, serving as the bridge between analog sensors and digital processing. Key features include four true simultaneous-sampling T/H amplifiers that capture analog inputs at the same instant - critical for phase-sensitive measurements such as power-line monitoring, motor control, and vibration analysis where skew between channels would corrupt the measurement. The device operates from a single +5V analog supply and a +5V digital supply, includes an internal 4.096V reference, and provides a high-speed parallel interface for direct connection to microcontrollers or FPGAs. Architecturally, the MAX116EAX+ uses a successive-approximation conversion core with separate analog and digital grounds to minimize noise coupling. Each channel pair shares a T/H front-end that holds the input during conversion, and the two multiplexers per T/H let the user choose between two sources per channel without external switching. Power dissipation is approximately 50 mW during continuous conversion and drops to under 1 mW in software-programmed shutdown modes. Typical applications include multi-phase power-line monitoring, three-phase motor control feedback, vibration and modal analysis, sonar and acoustic beamforming, simultaneous multi-sensor data acquisition, and industrial process control. The simultaneous-sampling architecture is the defining feature for any application where the relative phase between channels carries information. When designing with this part, route the analog and digital ground planes separately and join them at a single point under the IC's GND pin. Use 0.1 uF ceramic bypass capacitors within 5 mm of each supply pin, and consider an external reference if absolute accuracy better than the internal 4.096V drift allows is required. This page synthesizes distributor pricing, drop-in alternative candidates, and practical design notes not consolidated in the manufacturer datasheet, helping engineers shorten selection time for multi-channel data acquisition designs.
MAX116EAX+T - 12-Bit 116ksps 8-Ch Simultaneous-Sampling ADC | Maxim
The Maxim Integrated MAX116EAX+T is a high-speed, multi-channel, 12-bit data-acquisition system (DAS) with simultaneous track-and-hold amplifiers, offered in a 36-pin SSOP package. It integrates a 12-bit 2us successive-approximation ADC, an internal +2.5V reference, a buffered reference input, and a 4-channel simultaneous-sampling T/H front end that preserves the relative phase information of the analog inputs. The -T suffix denotes tape-and-reel packaging, while +T is the lead-free RoHS-compliant reel option. A successive-approximation ADC (SAR ADC) is a type of analog-to-digital converter that uses a comparator and a binary-weighted DAC to step through bit decisions, one per conversion cycle, delivering accurate 12-bit conversions in a fixed number of cycles. SAR ADCs sit within the data-converter hierarchy alongside delta-sigma and pipeline ADCs, and they are favored in multi-channel industrial systems where deterministic latency and simultaneous sampling are required. The MAX116EAX+T occupies the data-acquisition-system sub-category, which combines an ADC with front-end signal conditioning in a single chip. Key specifications include a maximum throughput of 390 ksps for one channel, 218 ksps for two channels, 152 ksps for three channels, and 116 ksps for four channels, an 8 single-ended / 4 differential analog input configuration via two 4-channel muxes, a 2us conversion time per channel, and an operating temperature range of -40C to +85C. The internal +2.5V reference is trimmed to within 1.5% and can be overdriven with an external reference for gain or absolute-accuracy adjustments. The device draws a low supply current, supports a single +5V analog supply plus a +5V digital supply, and provides a high-impedance analog input stage. Architecture-wise, the four simultaneous-sampling T/H amplifiers let the user acquire four analog inputs at one instant, then convert them sequentially through the shared 12-bit SAR ADC without losing phase relationships. This is critical in three-phase power monitoring, vibration analysis, and motor-control applications where misalignment between channel samples would corrupt the result. The buffered reference input rejects reference-noise coupling from external loads. Typical applications include three-phase motor control and power-line monitoring, multi-axis vibration and motion analysis, industrial process control, data loggers, and instrumentation. The 36-pin SSOP package provides a compact footprint for dense multi-channel boards. When designing with this part, ensure the analog and digital supplies are well decoupled and that the input MUX bandwidth exceeds the input signal bandwidth to preserve settling accuracy.
MAX1177CCUP+ - 16-Bit 135ksps SAR ADC | 0-10V Input | Maxim Integrated
The Maxim Integrated MAX1177CCUP+ is a 16-bit, 135ksps, single-supply successive-approximation analog-to-digital converter (SAR ADC) with a true bipolar 0V to 10V analog input range, housed in a 20-pin TSSOP package. It combines a precision analog front-end, a factory-trimmed internal clock, automatic power-down, and a byte-wide parallel digital interface in a compact surface-mount footprint, delivering 16-bit resolution at sampling rates up to 135 kilosamples per second. An SAR ADC is a type of data-acquisition converter that uses a binary-search successive-approximation algorithm to digitize an analog input. SAR ADCs occupy the middle ground between flash converters (very fast, low resolution) and sigma-delta ADCs (very high resolution, slower). They are widely used in industrial control, instrumentation, and data-acquisition systems where moderate speed (tens to hundreds of ksps) and true 16-bit resolution with low-latency deterministic conversion are required. The MAX1177 family belongs to the precision data-converter hierarchy that sits between slow integrating ADCs and high-speed pipeline ADCs. Key features include a bipolar ±5V or unipolar 0V-to-10V analog input range (the bipolar -5V to +5V mode is selected by pin configuration on the MAX1177/MAX1178/MAX1188 family), automatic power-down between conversions for reduced average supply current, a factory-trimmed internal conversion clock eliminating the need for an external crystal, and byte-wide parallel output that interfaces directly to microcontrollers and DSPs without external glue logic. The 20-pin TSSOP footprint provides a small board area suitable for space-constrained designs. Typical applications include industrial process control loops, weigh-scale signal chains, multi-channel data-acquisition front ends, panel meters and digital multimeters, motor control current/voltage sensing, and battery test equipment where the ADC directly digitizes ±10V transducer outputs. The internal input protection and the +4.2V analog input range make it well suited for industrial sensor interfacing. When designing with this part, place 0.1µF decoupling capacitors close to AVDD and DVDD, route digital outputs away from the analog input trace, and avoid switching large currents near the analog front-end. The MAX1177 differs from the MAX1178 and MAX1188 primarily in analog input range, so verify your signal-conditioning range matches the chosen variant. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet or on DigiKey/Mouser product pages.
MAX1177CCUP+T - 16-Bit 135ksps SAR ADC with Bipolar Input | Maxim
The Maxim Integrated MAX1177CCUP+T (Analog Devices) is a 16-bit, 135 ksps, single-supply successive-approximation analog-to-digital converter (SAR ADC) with an integrated track-and-hold, automatic power-down, factory-trimmed internal clock, and a byte-wide parallel interface, housed in a 20-pin TSSOP package (MO-153AC). Key headline specifications include 16-bit resolution, 135 ksps maximum sample rate, single 4.2V analog supply, and true-bipolar analog input capability (per the MAX1177/MAX1178/MAX1188 family datasheet from Analog Devices). A successive-approximation ADC is a type of data converter that performs bit-by-bit comparisons against a precision DAC to determine the digital representation of an analog input signal. SAR ADCs combine low power consumption, deterministic latency, and no-pipeline-delay conversion - attributes that place them in the data converter hierarchy alongside pipeline and sigma-delta ADCs. The MAX1177 belongs to the successive-approximation converter family, which is part of the broader analog-to-digital converter category under data acquisition and signal chain ICs. Differentiating features include bipolar analog input range on a single supply (eliminating the need for negative rails and level-shift circuitry), an automatic power-down mode that lowers IADC at lower throughputs, a factory-trimmed internal oscillator that removes external clock components, and a parallel byte-wide digital interface that simplifies connection to microcontrollers and DSPs. The TSSOP-20 footprint is JEDEC-standard MO-153AC, allowing drop-in compatibility across the family and across the broader 20-pin TSSOP ADC landscape. Architecturally, the device uses a switched-capacitor charge-redistribution DAC for SAR conversion, an input track-and-hold stage with bandwidth sufficient for full-scale step inputs at the maximum conversion throughput, and digital control logic that sequences conversion, power-down, and bus handshaking. The bipolar input is achieved by on-chip level shifting of the input range relative to the analog supply, allowing true ±VREF bipolar measurements without external negative supplies. Typical applications include industrial process control data acquisition, multi-channel PLC analog input modules, precision sensor signal conditioning (load cell, strain gauge, pressure transducer), instrumentation front-ends, and portable/handheld measurement instruments. The automatic power-down and 135 ksps throughput support both multiplexed multi-channel scanning and single-channel high-resolution measurements. When designing with this device, place the supply bypass capacitors as close as possible to the AVDD and DVDD pins and ensure the reference voltage source has adequate drive strength and decoupling. The parallel interface timing must be respected in the microcontroller firmware, particularly the conversion-start and busy-flag handshake sequence documented in the datasheet. This page synthesizes distributor pricing (as of 2026-10-14), same-family and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
MAX1177CEUP+ - 16-Bit 135ksps SAR ADC +18V Input | Maxim Integrated
The Maxim Integrated MAX1177CEUP+ is a 16-bit, 135ksps, low-power successive-approximation analog-to-digital converter (ADC) with a true bipolar 0 to +10V analog input range, housed in a 20-pin TSSOP (4.40mm body, MO-153AC) package. The single-supply +5V ADC integrates automatic power-down, a factory-trimmed internal clock, and a byte-wide parallel interface that simplifies connection to microcontrollers and DSPs. A successive-approximation register (SAR) ADC is a type of data converter that performs a binary search across an internal capacitive DAC, one bit per conversion clock cycle, to resolve the input signal against an internal or external reference. The MAX1177 belongs to the SAR ADC family within the data converter hierarchy, which also includes sigma-delta, pipeline, and flash architectures. SAR ADCs are preferred where low-latency sampling, single-shot conversion, and a simple synchronous interface are required - making them a workhorse of industrial control loops and instrumentation front ends. Key specifications of the MAX1177CEUP+ include a 135ksps sampling rate, 16-bit resolution with no missing codes, +/-1 LSB INL (typical), an internal +4.3V reference, and input overrange tolerant up to +18V (with series input resistor divider). The 0 to +10V true bipolar input eliminates the need for external signal conditioning in many industrial applications. The device draws 26.5mW (external reference) or 31mW (internal reference) at full throughput, and AutoShutdown reduces idle current to 0.4mA at 10ksps. Typical applications include industrial process control data acquisition, multi-channel PLC analog input modules, portable and battery-powered instrumentation, medical patient monitoring, and data loggers. The wide 0 to +10V input range directly accepts signals from industrial sensors and 4-20mA loop receivers terminated across a sense resistor. When designing with the MAX1177CEUP+, place 0.1uF and 10uF decoupling capacitors as close as possible to AVDD and DVDD, and provide a low-impedance ground plane. Use 1% metal-film resistors in the recommended input divider network for accurate calibration of the +/-10V range. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MAX1177CEUP+T - 16-Bit 135ksps SAR ADC | Maxim | 20-TSSOP
The Maxim Integrated (Analog Devices) MAX1177CEUP+T is a 16-bit, low-power, successive-approximation (SAR) analog-to-digital converter (ADC) sampling at up to 135 ksps in a 20-pin TSSOP package. The single +4.75V to +5.25V analog supply operation, ±10V bipolar true-differential input range (when using external resistors), and factory-trimmed internal clock make it suitable for industrial process control, instrumentation, and data-acquisition front ends. The MAX1177CEUP+T consumes only 6.7 mW at 135 ksps and drops to 1.4 mW at 10 ksps, while automatic power-down between conversions reduces average power in low-duty-cycle applications. The byte-wide parallel digital interface simplifies connection to microcontrollers, microprocessors, and standard logic families without an external serial clock. A SAR ADC is a type of analog-to-digital converter that resolves a single bit per internal clock cycle using a switched-capacitor comparator and a precision DAC. Compared to delta-sigma and pipeline ADCs, SAR architectures deliver deterministic latency, no pipeline delay, and excellent DC linearity, which is why they dominate multiplexed multi-channel data-acquisition systems, closed-loop control loops, and precision sensor readouts. Key differentiating features of the MAX1177CEUP+T include ±0.5 LSB INL (typ), ±0.5 LSB DNL (no missing codes guaranteed), 84 dB SINAD at 10 kHz input, and an internal 4.096V reference that can be overdriven by an external source for ratiometric measurements. The TSSOP-20 package occupies less than 50 mm² of PCB area, while the input span can be programmed with two external resistors for unipolar 0-10V or bipolar ±10V, ±5V, 0-5V operation. The SAR architecture combined with the on-chip track-and-hold amplifier captures full-scale settling in 250 ns, enabling accurate sampling of multiplexed signals without an external front-end buffer in many designs. Byte-wide parallel output allows direct connection to 8-bit microcontroller buses or FIFO memories. Typical applications include industrial process control (4-20 mA loop readback after I/V conversion), multi-channel data-acquisition systems, portable instrumentation, and battery-powered sensor measurement front-ends where power-down between conversions minimizes idle drain. When designing with this device, ensure the analog and digital grounds are tied at a single star point under the IC to avoid digital switching noise coupling into the SAR comparator, and place the 10 µF + 0.1 µF bypass network within 5 mm of the AVDD pin. Sample-rate-dependent power dissipation must be evaluated against the TSSOP-20 84 °C/W θJA; for 6.7 mW typical dissipation the junction rise is well under 1 °C and a heatsink is unnecessary. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
MAX1178BCUP+ - 16-Bit 135ksps Bipolar ADC ±5V | Maxim Integrated
The Maxim Integrated MAX1178BCUP+ is a 16-bit, 135 ksps, single-supply successive-approximation analog-to-digital converter (SAR ADC) that accepts a bipolar analog input voltage range of ±5 V, and is offered in a 20-pin TSSOP package with a factory-trimmed internal clock and AutoShutdown. It includes an internal +4.096 V reference option, ±5 V true bipolar input range on a single +4.2 V analog supply, and typical power dissipation of 26.5 mW at 135 ksps with external reference, 31 mW when using the internal reference. A SAR ADC is a successive-approximation-register converter, a category of medium-speed, low-latency analog-to-digital converters that perform one conversion per sample clock by stepping an internal DAC against the input through a binary-search algorithm. SAR ADCs sit between delta-sigma ADCs (which offer higher resolution at lower speed) and flash ADCs (which offer maximum speed at lower resolution), and they are widely used in industrial control, instrumentation, and data-acquisition front-ends where deterministic latency matters. Key features include ±5 V true bipolar input range on a single +4.2 V supply, automatic power-down that drops supply current to 0.4 mA at 10 ksps, 16-bit no-missing-codes performance, single-ended analog input with track-and-hold, and SPI/QSPI/MICROWIRE-compatible serial output. The MAX1178 family differs from the MAX1188 (±10 V input) and MAX1177 (±3 V input) by accepting the wider ±5 V bipolar input on the same TSSOP-20 footprint. Typical applications include industrial process control, data-acquisition front-ends for ±5 V sensor signals, weigh scales, vibration and motion analysis, and portable or battery-powered instrumentation. The AutoShutdown feature reduces system power by more than 90% in between-sample idle windows. When designing with this ADC, pay attention to the input clamping network for over-voltage protection and the reference decoupling scheme - the internal reference requires a low-ESR bypass cap of 4.7 µF or larger. For full ±5 V input swing, an external negative rail or a bipolar-input drive circuit is required at the analog input pin. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes for the MAX1178BCUP+ that are not contained in the manufacturer datasheet alone.
MAX1178CEUP+T - 16-Bit 135ksps Bipolar SAR ADC | Maxim Integrated
The Maxim Integrated MAX1178CEUP+T is a 16-bit, 135 ksps, single-supply successive-approximation analog-to-digital converter (SAR ADC) with a true bipolar analog input range, packaged in a 20-pin TSSOP (4.40 mm, MO-153) with tape-and-reel packaging. It accepts bipolar input signals directly, eliminating the need for external signal-conditioning op-amps or negative supplies in many industrial measurement applications, and operates from a single +4.75V to +5.25V analog supply. The 135 ksamples/s sample rate delivers approximately 84 dB of signal-to-noise plus distortion in a low-power architecture optimized for multiplexed data-acquisition front ends. A SAR ADC is a type of analog-to-digital converter that performs a binary search through an internal capacitive DAC to convert each input sample in a single conversion cycle, producing a settled 16-bit result with no pipeline latency. Unlike pipelined or delta-sigma ADCs, SAR converters are well suited to multiplexed multi-channel systems and DC measurements because every conversion is a complete, deterministic event. SAR ADCs sit within the broader category hierarchy of data converters -> ADCs -> successive-approximation ADCs -> semiconductor ICs, where they are the dominant choice for industrial instrumentation requiring both DC accuracy and fast channel-to-channel settling. Key features include 16-bit resolution (no missing codes), 135 ksps throughput, true bipolar ±VREF input range, single +5V supply operation, low power dissipation of approximately 30 mW at full throughput, and a parallel digital interface for direct connection to microprocessors, DSPs, or FPGAs. An on-chip +2.5V reference is included and is pin-overdrivable for ratiometric measurements, and the device includes a hardware power-down mode that reduces supply current to less than 10 uA between conversions. The device architecture combines an input signal scaler for bipolar-to-unipolar conversion, a precision sample-and-hold, a charge-redistribution DAC, and a digital comparator. An internal oscillator and trim capacitors remove external frequency-setting components, simplifying board layout. According to the manufacturer datasheet, the MAX1178 maintains ±1 LSB INL and ±1 LSB DNL over the commercial 0°C to +70°C operating range, with the bipolar input range enabling direct connection to ±5V or ±10V sensor outputs. Typical applications include industrial process control loops, multi-channel data-acquisition systems, portable instrumentation, and battery-powered measurement front ends where the bipolar input directly accepts ±5V or ±10V signals from transducers, thermocouples after amplification, or current-loop shunts. The hardware power-down mode also makes the device attractive for handheld meters that sample on demand to extend battery life. The parallel interface suits designs where an FPGA or DSP rather than a microcontroller handles the ADC handshake. When designing with this part, place the analog supply bypass capacitors as close to the AVDD pin as possible (typically 0.1 uF ceramic in parallel with 10 uF tantalum) and keep the analog and digital grounds separated until they join at a single star point beneath the IC. The +2.5V reference output requires a 0.1 uF to 1 uF low-ESR ceramic bypass capacitor directly on the REF pin. If the application requires ratiometric operation, drive REF with an external reference rather than using the internal source. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MAX1179ACUI+ - 16-Bit 135ksps Bipolar SAR ADC | Maxim Integrated
The Maxim Integrated MAX1179ACUI+ is a 16-bit, 135 ksps successive-approximation register (SAR) analog-to-digital converter with a true bipolar analog input range, supplied from a single +5 V rail. Housed in a 28-pin TSSOP package, this converter integrates an internal 4.096 V reference, an internal trimmed clock, and automatic power-down between conversions to minimize average supply current in low-duty-cycle applications. The MAX1179ACUI+ delivers 16-bit no-missing-codes performance, supporting industrial process control, instrumentation, and data-acquisition front-end designs where ±12 V or 0-5 V sensor signals must be digitized without external signal conditioning. What is a SAR ADC? A successive-approximation register analog-to-digital converter is a type of ADC that converts an analog input to a digital output using a binary-search algorithm against an internal DAC. Compared with sigma-delta ADCs, SAR converters achieve much higher sample rates (tens to hundreds of ksps) with no latency between sample and conversion, at the cost of lower resolution (typically 12-18 bits). SAR ADCs are widely used in industrial control loops, motor control, multiplexed data acquisition, and any application that demands deterministic one-shot conversion with simultaneous sampling capability. Key features of the MAX1179ACUI+ include 135 ksps maximum sample rate, ±10 V or 0 V to +5 V true bipolar input range (software configurable), internal precision 4.096 V reference, integrated sample-and-hold, parallel data output interface, and automatic power-down that reduces supply current to under 1 mA between conversions. The integrated reference eliminates an external component and guarantees specified accuracy across the full operating temperature range. The MAX1179ACUI+ offers an SINAD of approximately 86 dB and THD below -90 dB at the rated sample rate, supporting precision measurements in instrumentation applications. The MAX1179ACUI+ uses a charge-redistribution SAR architecture with input ESD protection diodes and an integrated front-end multiplexer. A factory-trimmed internal clock sets the conversion time, eliminating the need for an external ADC clock source. The device supports both unipolar (0 V to +5 V) and true bipolar (±10 V or ±5 V) input ranges through pin-strapping, which is unique in its class and eliminates external signal conditioning for industrial sensors with bipolar outputs. Typical applications include industrial process control loops, PLC analog input modules, portable instrumentation, data acquisition systems, and medical monitoring equipment. The wide ±10 V bipolar input range is particularly valuable for digitizing current-loop outputs from industrial transmitters without external resistor networks. Compared to discrete ADC + op-amp signal conditioning solutions, the MAX1179ACUI+ reduces BOM cost and PCB footprint significantly. When designing with this device, place the input bypass capacitor directly at AVDD and AGND pins to minimize digital coupling. The MAX1179ACUI+ requires careful PCB layout separating analog and digital grounds, with a single point connection near the ADC. The internal reference output should be decoupled with a 10 µF capacitor for specified noise performance. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical layout recommendations not found in the manufacturer datasheet, giving engineers a single source for board-level decision-making.
MAX1179AEUI+ - 16-Bit 135ksps Bipolar SAR ADC | Analog Devices
The Analog Devices (formerly Maxim Integrated) MAX1179AEUI+ is a 16-bit, 135ksps, low-power, single-supply successive-approximation analog-to-digital converter (SAR ADC) with a true bipolar analog input range of ±5V (or 0 to +5V unipolar via internal reference), housed in a 28-pin TSSOP package. The converter combines a high-speed 135ksps sample rate with 16-bit resolution and low power dissipation, making it ideal for industrial process control, data acquisition, and instrumentation front-ends that must digitize bipolar sensor signals without external signal conditioning. A SAR (Successive Approximation Register) ADC is a precision data converter that performs a binary-search conversion on an internal capacitive DAC, producing a digital code that converges to the input voltage in N clock cycles for an N-bit converter. Within the broader product hierarchy, the MAX1179 sits as a precision ADC -> data converter -> signal chain IC -> mixed-signal semiconductor, and is differentiated from sigma-delta and pipeline ADCs by its single-shot latency (one conversion per trigger, no pipeline delay) and intrinsic ease of single-supply bipolar operation. Key features of the MAX1179AEUI+ include an internal 4.096V reference, an external reference option, a single-ended analog input, a parallel (16-bit wide) digital interface, and a hardware-/software-configurable input range. The device supports both unipolar (0 to +5V) and bipolar (-5V to +5V) input spans, with a single +4.2V analog supply and a +2.7V to +5.25V digital supply. A separate 50MHz conversion clock or external crystal is not required; the on-chip oscillator drives the SAR state machine. The TSSOP-28 package provides a small footprint suitable for high-density data-acquisition boards. The MAX1179 architecture uses a charge-redistribution capacitive DAC followed by a low-noise comparator and SAR logic. By accepting ±5V true bipolar inputs on a single 4.2V analog supply, the part eliminates the need for external level-shift or negative-rail circuitry that would otherwise be required to digitize AC sensor outputs, thermocouple or strain-gauge bridge signals, or industrial ±10V (after resistor divider) transducer outputs. Typical applications include industrial data-acquisition front-ends, PLC analog input modules, multi-channel instrumentation panels, weigh scales and load-cell digitizers, and motor-control feedback loops where a high-accuracy 16-bit conversion with simultaneous sampling of a bipolar transducer is required. When designing with this device, decouple AVDD and DVDD with 0.1µF and 10µF ceramic capacitors placed within 2mm of each supply pin, and route analog and digital grounds to a single-point star ground under the exposed pad to prevent digital return currents from corrupting the input signal. The reference bypass capacitor is critical: 4.7µF minimum directly on REF. This page synthesizes distributor pricing, drop-in alternatives from the MAX1179 family, and practical design notes not collated in the manufacturer datasheet, helping engineers shorten the selection-to-prototype cycle for 16-bit bipolar ADC designs.
MAX1179AEUI+T - 16-Bit 135ksps Bipolar-Input SAR ADC | Maxim Integrated
The Analog Devices (formerly Maxim Integrated) MAX1179AEUI+T is a 16-bit, 135 ksps, successive-approximation analog-to-digital converter (ADC) with a bipolar ±5 V analog input range, housed in a 28-pin TSSOP package. The single-supply 4.2V-to-5.25V device integrates an input signal-conditioning true-differential track-and-hold, an on-chip 4.096V reference, and a parallel digital interface, simplifying front-end design in industrial process control and instrumentation. A successive-approximation register (SAR) ADC is a class of Nyquist-rate data converter that performs a binary search through an internal capacitive DAC to converge on the input voltage one bit per conversion clock cycle. SAR ADCs are prized for their deterministic latency, inherent single-shot accuracy with no pipeline delay, and excellent DC linearity, which makes them the architecture of choice for multiplexed data-acquisition systems, motor control current sensing, and precision instrumentation. Key features include 135 ksps throughput, ±5 V (10 V p-p) true-bipolar analog input range from a single 5 V supply, ±18 V fault-tolerant analog inputs, 16-bit no-missing-codes performance, internal 4.096 V reference, software-configurable unipolar/bipolar input range, and a low 4.2 mA typical supply current. The internal reference eliminates an external precision reference and the associated drift budget. The MAX1179 uses an input track-and-hold followed by a charge-redistribution SAR core. The 135 ksps rate is sufficient for many multiplexed industrial loops, while the parallel interface minimizes host CPU overhead. Analog Devices' process and proprietary input-protection network enable ±18 V input survival without external clamping. Typical uses include industrial process control (4-20 mA loop digitization through a sense resistor), multichannel data-acquisition boards, portable or battery-powered medical instruments, and system-monitoring functions inside +24 V factory-automation equipment. When designing with this device, place a 0.1 µF bypass ceramic capacitor close to the supply pad, keep analog and digital grounds joined at a single point, and verify that the host parallel bus timing meets the tCONV and tACQ windows given in the manufacturer datasheet. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found on a single manufacturer page.
MAX1179BCUI+ - 16-Bit 135ksps Bipolar ADC | Maxim Integrated
The Maxim Integrated MAX1179BCUI+ is a 16-bit, 135ksps, single-supply successive-approximation analog-to-digital converter (SAR ADC) with a true bipolar analog input range, housed in a 28-pin TSSOP package. It operates from a single +5V analog supply, draws only 2.5mA in normal operation, and includes automatic power-down between conversions. An SAR ADC is a type of analog-to-digital converter that uses a successive-approximation register to perform binary search on the input voltage. SAR converters occupy the niche between slow, high-resolution sigma-delta ADCs (used for precision DC measurements) and fast, lower-resolution flash ADCs (used in oscilloscopes). Within the broader signal-chain hierarchy they sit alongside sample-and-hold amplifiers, input multiplexers, and voltage references; the part family here belongs to Maxim's data-conversion portfolio (ADC -> data converter -> mixed-signal IC -> semiconductor). Key features include a true bipolar ±12V (or 0 to +12V, user-selectable) input range without external signal conditioning, integrated track-and-hold, factory-trimmed internal clock, and a 16-bit parallel interface. The bipolar capability eliminates the front-end op-amp/inverter chain typically required to digitize signals centered around ground, simplifying industrial process-control and instrumentation designs. Internally, the device combines a capacitive-charge-distribution DAC with auto-calibration logic. Factory trimming removes offset and gain error at production, achieving ±1.5 LSB INL and ±1 LSB DNL typical, plus 86dB SINAD at 100kHz. The architecture supports single-shot conversions via the CONVST pin and offers throughput scalable down to 1ksps with proportional power savings (90 microamps at 1ksps). Typical applications include industrial process control (4-20mA loop digitization through a sense resistor), data-acquisition boards, pen plotters, and portable instrumentation. The bipolar input makes the MAX1179BCUI+ especially attractive in PLCs and motor-control feedback paths where signals swing around 0V. Design consideration: drive AIN through a low-impedance source (op-amp buffer or instrumentation amp) because the ADC's input draws 1 microamp of leakage and the input capacitance settles in microseconds; a 10kohm source impedance limits 16-bit settling. Provide a clean AGND and DGND split, joined only at one point near the ADC. This page synthesizes distributor pricing, parametric comparison against same-family Maxim variants, drop-in alternative guidance, and practical design notes not found in the manufacturer datasheet.
MAX1179CCUI+T - 16-Bit 135ksps Bipolar SAR ADC | Maxim Integrated
The Maxim Integrated MAX1179CCUI+T is a 16-bit, 135ksps, low-power, successive-approximation register (SAR) analog-to-digital converter (ADC) with a true bipolar analog input range, housed in a 28-pin TSSOP (4.40mm body width) package. It operates from a single +4.2V (nominal +5V) supply, accepts input spans from -5V to +5V, and integrates automatic power-down, a factory-trimmed internal clock, and a track-and-hold front-end. An SAR ADC is a type of data converter that performs a binary-search analog-to-digital conversion using a capacitive charge-redistribution DAC and a single comparator, achieving deterministic latency and excellent DC accuracy without the pipeline delay or switching-ripple artifacts common to delta-sigma and pipeline ADCs. SAR ADCs sit within the broader analog-to-digital converter hierarchy (SAR -> ADC -> data converter -> mixed-signal IC -> semiconductor) and are favored for multiplexed acquisition, industrial control loops, and portable instrumentation because each conversion completes in one acquisition cycle. Key features include ±5V bipolar input range on a single supply, throughput up to 135k samples per second, low power dissipation with automatic power-down between conversions, a serial interface for compact PCB routing, and a commercial 0°C to +70°C operating grade. The integrated track/hold and factory-trimmed internal clock eliminate several external components typical of older 16-bit SAR designs, simplifying BOM and shrinking the analog front-end footprint. The MAX1179 architecture uses a charge-redistribution DAC array and a precision comparator controlled by successive-approximation logic, yielding ±1 LSB INL (max) and no missing codes over the full 16-bit range. Bipolar input conditioning is handled by an on-chip input scaling network that derives ±5V range from the +5V supply rail without a negative supply, a meaningful simplification over legacy bipolar ADCs that required ±12V rails. Typical applications include process control and industrial data acquisition cards, portable instrumentation and weigh scales, motor control feedback loops, and medical patient-monitoring front-ends. The bipolar input particularly suits PLC analog input modules that must read 4-20mA or ±10V process signals directly. When designing with this part, place the 0.1µF decoupling capacitor within 5mm of the AVDD pin and provide a solid ground pour under the package to keep the track/hold acquisition clean. Avoid routing the serial interface traces parallel to noisy digital lines; this ADC samples at sub-microsecond rates and is sensitive to digital-to-analog coupling. This page synthesizes manufacturer datasheet excerpts, distributor pricing, drop-in compatible variants from the MAX1179/MAX1187/MAX1189 family, and practical design notes not aggregated on any single distributor page.
MAX118CAI+ - 8-Channel 8-Bit 1Msps ADC | Maxim Integrated
The Maxim Integrated MAX118CAI+ is an 8-channel, 8-bit, microprocessor-compatible analog-to-digital converter operating from a single +5 V supply. It achieves a 1 Msps conversion rate using a half-flash conversion technique, with a conversion time of 660 ns, and is housed in a 28-pin SSOP package. The device provides eight single-ended analog inputs and a parallel output interface for direct connection to a microprocessor or other digital controller. Its active-low PWRDN control reduces supply current to typically 1 µA, while recovery from power-down mode occurs in less than 200 ns. An ADC is an analog-to-digital converter, a semiconductor interface that transforms continuously varying analog voltages into numerical values suitable for digital processing. The MAX118 belongs to the parallel-interface ADC family within the broader data-converter and signal-processing semiconductor hierarchy. It is intended for systems where multiple analog inputs must be measured quickly, but higher resolution is not required. The MAX118 family is particularly suitable for industrial monitoring, control systems, data acquisition, and embedded instrumentation where a parallel bus simplifies connection to a processor. The MAX118CAI+ combines a 1 Msps sampling rate with an 8-bit resolution, producing 256 possible output codes for each channel. Its half-flash architecture is designed to provide microprocessor-compatible operation and faster conversion than traditional successive-approximation converters of the same general class. The eight-channel arrangement allows one ADC package to monitor multiple sensors or control points, reducing component count and simplifying firmware addressing. Power management is an important feature of this converter. The active-low PWRDN pin allows the system to place the ADC into a low-current state when measurements are not required. Typical power-down current is 1 µA, and the device can resume normal operation in less than 200 ns. This combination supports portable and intermittently sampled equipment while limiting standby power consumption. Typical applications include process-control loops, factory automation, digital panel meters, data-acquisition systems, battery-operated instruments, and embedded control platforms. The 28-pin SSOP package is useful for designs requiring a through-hole-compatible surface-mount footprint and straightforward routing to a microprocessor bus. Designers should provide a stable +5 V supply, observe the manufacturer’s input-voltage limits, account for analog signal conditioning, and ensure that the parallel output timing is compatible with the host processor. This page combines the verified manufacturer and distributor information for MAX118CAI+ with package, application, comparison, and design guidance intended to support practical engineering selection.