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Produtos (39.000+)

MAX181AEPL - 12-Bit 8-Ch 100ksps Data Acquisition IC | Maxim
MAX181AEPL

MAX181AEPL - 12-Bit 8-Ch 100ksps Data Acquisition IC | Maxim

The Maxim Integrated MAX181AEPL is a complete 12-bit, 8-channel Data Acquisition System (DAS) integrating an analog input multiplexer, wide-bandwidth Track-and-Hold (T/H), low-drift buried zener reference, and a flexible 8-/12-bit microprocessor interface into a single 40-pin PDIP through-hole package. The device converts at up to 100 ksps while drawing low supply current, and is configured via the µP bus for unipolar/bipolar input ranges and single-ended/differential channel operation. A Data Acquisition System (DAS) of this type combines an analog front end (multiplexer + T/H + reference) with a successive-approximation ADC and a digital interface. In the broader system taxonomy, a DAS sits below a data logger or DAQ module and above a discrete SAR ADC; it sits inside the larger category of mixed-signal data converter ICs, which themselves fall under signal-chain and data-acquisition semiconductors. By integrating the multiplexer and reference, the MAX181AEPL removes the need to specify, lay out, and calibrate those external sub-blocks. Key features include eight analog input channels (software-configurable single-ended or differential), a 100 ksps throughput rate, ±5 V input range capability (with ±12 V or ±15 V supplies), successive-approximation conversion, software-selectable unipolar or bipolar operation, and a low-power +5 V supply requirement. The internal reference and T/H deliver the bandwidth and accuracy needed to digitize multiplexed signals without inter-channel settling loss. Technically, the MAX181AEPL uses a charge-balancing successive-approximation architecture with an auto-calibrating internal DAC and an input T/H that supports settling to 12-bit accuracy at the full 100 ksps rate. The internal buried-zener reference provides low drift over temperature, eliminating the need for an external reference in most applications. The microprocessor interface supports both 8-bit-wide and 12-bit-wide bus reads, plus standard Read/Convert signals for compatibility with common µP families. Typical applications include industrial process-control front ends, multi-channel instrumentation data loggers, multiplexed sensor signal conditioning, automatic test equipment (ATE) scan digitizers, and embedded 12-bit measurement subsystems. The 8-channel count maps directly to typical sensor-per-channel counts (4-8 analog sensors per board). When designing with the MAX181AEPL, pay attention to analog-input common-mode and overvoltage protection at the multiplexer. The internal reference, while low-drift, requires a properly decoupled supply rail; place 10 µF tantalum and 0.1 µF ceramic bypass capacitors close to the supply pins. For best 12-bit performance in multiplexed mode, include a T/H settling delay before conversion start. This page consolidates distributor stock and pricing, drop-in MAX181-family alternatives, and practical layout/calibration notes that go beyond what the datasheet alone provides.

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MAX181BCPL - 12-Bit 8-Ch 100kSPS Data Acquisition | Maxim
MAX181BCPL

MAX181BCPL - 12-Bit 8-Ch 100kSPS Data Acquisition | Maxim

The Maxim Integrated MAX181BCPL is a complete, 8-channel, 12-bit data-acquisition system on a single IC, packaged in a 40-pin PDIP through-hole device. It integrates an 8-channel analog multiplexer, a track/hold amplifier, a successive-approximation analog-to-digital converter (SAR ADC), and digital control logic to deliver 100 kSPS conversion throughput with 12-bit resolution. A data-acquisition IC, often abbreviated DAS or DAQ, is a mixed-signal component that converts multiple real-world analog signals into a digital format that a microcontroller, DSP, or processor can interpret. Within the broader signal-chain hierarchy, the MAX181 sits between front-end sensors/transducers (which produce analog voltages or currents) and a host processor, belonging to the same product family as monolithic ADCs, mixed-signal front-ends, and DAS ICs that combine a MUX, ADC, and reference. Designers choose a fully integrated DAS when they need a small BOM and deterministic timing rather than a discrete mux + external ADC chain. Key differentiating specifications include 100 kSPS throughput, 12-bit resolution with ±1 LSB linearity (max), a track/hold amplifier with sub-microsecond acquisition time, ±5 V input range on selected channels, and a parallel microprocessor interface. The MAX181BCPL operates from ±5 V supplies and supports bipolar input ranges by software configuration, removing the need for external signal conditioning on industrial-level signals. Architecturally, the MAX181 uses a switched-capacitor charge-redistribution SAR core with an internal precision reference, an 8-input analog MUX with break-before-make switching, and an internal clock. The integrated design eliminates most timing skew between channels and removes the layout burden of routing high-frequency analog tracks between a separate MUX and ADC. Typical applications include industrial process-control front ends, multichannel data loggers, portable instrumentation, and embedded analog I/O modules for PLCs. The wide input range, parallel interface, and through-hole PDIP package make it especially attractive for legacy retrofits and for evaluation/prototyping boards where socketed parts simplify rework. When designing with the MAX181BCPL, ensure adequate decoupling on both AVDD and DVDD rails and verify that the input signal source impedance is below the datasheet's recommended maximum to maintain 12-bit accuracy. The through-hole PDIP footprint also simplifies hand-soldered prototypes and field replacements. This page synthesizes distributor pricing for MAX181BCPL, drop-in PDIP-40 alternatives from the same Maxim MAX181 family, and design notes not collected in a single place elsewhere - giving procurement, design, and component-engineering teams a single reference for evaluating the part.

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MAX181BCQH-D - 12-Bit 100ksps 6-Channel ADC | Analog Devices
MAX181BCQH-D

MAX181BCQH-D - 12-Bit 100ksps 6-Channel ADC | Analog Devices

The Analog Devices MAX181BCQH-D is a complete, 12-bit, 100ksps, 6-channel data acquisition system built around a successive-approximation ADC with integrated sample/hold and a configurable 6-input analog multiplexer, housed in a 44-pin PLCC (QCCJ) surface-mount package. A successive-approximation register (SAR) analog-to-digital converter (ADC) is a converter architecture that performs one bit per internal clock cycle using a comparator and a switched-capacitor DAC. Compared with flash or pipeline ADCs, SAR ADCs offer an attractive trade-off between sampling rate, resolution, and power consumption for industrial control, instrumentation, and process automation applications. SAR ADCs sit within the broader data-converter hierarchy: ADC -> data converter -> data acquisition IC -> signal-chain component -> semiconductor. Key features of the MAX181BCQH-D include 100 ksps throughput, 12-bit resolution, 6 single-ended or pseudo-differential input channels, an integrated track-and-hold amplifier, software-configurable input ranges, and a parallel microprocessor interface. The architecture is optimized for high-impedance sources, eliminating the need for an external buffer amplifier in many applications. The part is specified over the commercial (0 to +70 °C) temperature grade, and the "-D" suffix denotes a tape-and-reel shipping format per Analog Devices ordering nomenclature. Typical applications include multi-channel analog signal monitoring, transducer interfacing, industrial process control, dataloggers, and embedded instrumentation front-ends. The combination of 6 channels and 100 ksps makes the MAX181BCQH-D well suited for scanning multiple sensor signals sequentially without external multiplexing logic. When designing with this part, attention must be paid to the analog input bandwidth, reference decoupling, and PCB layout for ground isolation between analog and digital domains. The on-chip reference and software-programmable input ranges simplify BOM, but the part must be paired with a low-noise front-end for best DC accuracy.

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MAX181CCPL - 12-Bit 8-Ch 100ksps DAS | Maxim Integrated
MAX181CCPL

MAX181CCPL - 12-Bit 8-Ch 100ksps DAS | Maxim Integrated

The Maxim Integrated MAX181CCPL is a complete 8-channel, 12-bit data-acquisition system (DAS) housed in a 40-pin PDIP (Plastic DIP) through-hole package. It integrates a successive-approximation analog-to-digital converter, 8 analog input channels, a track/hold amplifier, and an on-chip reference, delivering up to 100 ksps throughput from a single +5 V supply. The 'CC' grade operates over the commercial 0°C to +70°C temperature range, and the parallel word-access interface simplifies connection to 8-bit and 16-bit microprocessors or microcontrollers. What is a Data-Acquisition System? A DAS is a mixed-signal integrated circuit that combines an analog front end (multiplexer, sample-and-hold, and ADC) with digital control logic in a single chip, replacing the discrete ADC-plus-mux-plus-reference designs of the past. Within the broader converter hierarchy, a DAS sits above stand-alone ADCs and below full system-on-chip solutions; MAX181-class devices belong to the successive-approximation register (SAR) ADC family, prized for deterministic latency and ease of microprocessor interfacing. By integrating the reference and analog switches, Maxim's DAS parts reduce board area, lower BOM cost, and remove the burden of matching discrete analog stages. Key features of the MAX181CCPL include 12-bit resolution with ±½ LSB linearity (typical), an on-chip 5 V reference (with external override option), software-configurable unipolar/bipolar input ranges (0 V to 5 V or ±5 V / ±10 V / 0 V to 10 V depending on external scaling), and a hardware-mode or software-mode channel scan sequencer. The device also offers an interrupt output at end-of-conversion, low power dissipation (~75 mW typical at 100 ksps), and single +5 V operation. The 40-pin PDIP footprint remains compatible with legacy through-hole test fixtures and breadboard prototypes. Architecturally, the MAX181CCPL uses a charge-redistribution successive-approximation ADC core with a capacitive DAC, which provides inherent sample-and-hold action and eliminates the need for an external SHA. The on-chip precision reference is laser-trimmed at the factory, and an external reference pin allows system designers to substitute higher-accuracy or ratiometric references when required. The parallel interface supports either 8-bit (two read cycles) or 16-bit (single read) data transfer, with chip-select and read-strobe handshaking that map directly to 8051, 68HC11, and similar MCU buses. Typical applications include industrial process-control front ends, multi-channel data loggers, instrumentation front panels, and portable test equipment. The 8-channel count suits it for monitoring thermocouple banks, RTD arrays, strain-gauge bridges, and 4 mA to 20 mA current-loop sensors. Designers also use the MAX181CCPL in legacy microprocessor-based factory automation cards where a parallel-bus ADC eliminates the need for an SPI/QSPI peripheral. When designing with the MAX181CCPL, pay attention to analog-input protection: the analog inputs can be damaged by overvoltage transients, so series resistors and clamping diodes networks are recommended for industrial applications. Also, because the part uses a successive-approximation core, the analog input must remain stable during the conversion window (typically 8 µs to 10 µs); if the source impedance is too high, add an external buffer to avoid conversion errors. This page synthesizes distributor pricing, drop-in Maxim Integrated alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MAX181CEQH-D - 12-Bit 100ksps 8-Ch DAS ADC | Maxim Integrated
MAX181CEQH-D

MAX181CEQH-D - 12-Bit 100ksps 8-Ch DAS ADC | Maxim Integrated

The Maxim Integrated MAX181CEQH-D is a complete 12-bit, 100 ksps, 8-channel data-acquisition system (DAS) housed in a 44-pin PLCC (J-Lead, 16.59x16.59 mm) surface-mount package. It integrates an 8-input multiplexer, a high-bandwidth track/hold amplifier, a successive-approximation ADC, plus programmable I/O registers and a parallel microprocessor interface on a single die. The -D suffix indicates the dry-pack shipping option, while the underlying MAX181 silicon operates from a single +5 V supply and a -5 V reference. According to Maxim datasheet summaries, the part delivers 100 ksps throughput with 12-bit resolution and is specified for the industrial temperature grade. A Data Acquisition System (DAS) of this type is a category of mixed-signal IC that combines analog signal conditioning, channel multiplexing, and a single ADC to support multi-channel measurement from a shared converter. The MAX181 belongs to the broader SAR (Successive Approximation Register) ADC family, which trades absolute speed for high resolution (12+ bits), low power consumption, and ease of system integration. Within the data-converter hierarchy, the DAS sits above a bare multiplexer plus ADC pair, reducing board area, timing complexity, and component count versus discrete architectures; this is why older industrial and instrumentation designs relied on it heavily. Differentiating features include 8 single-ended or 4 differential analog inputs selectable through on-chip registers, a software-controlled programmable gain stage, internal clock generation, and a parallel interface that maps cleanly onto 80C31/68HC11, 8088/80186, and similar microcontrollers. The successive-approximation architecture guarantees no missing codes at the 12-bit level and provides low aperture uncertainty that is suitable for multiplexed transducer scanning. Internal registers let the host independently configure input range, channel selection, and conversion-trigger source without external glue logic. The conversion engine uses a charge-redistribution DAC array with a thin-film ladder trimmed at the factory, yielding typical integral nonlinearity of ±0.5 LSB and a track/hold capable of sustaining the 100 ksps rate even on full-scale input transitions. Reference decoupling is single-supply: the device accepts a unipolar or bipolar analog input range tied to VREF; a typical 4.096 V reference supports the part's nominal 0-5 V input span, which matches many transducer bridges, thermocouples, and 4-20 mA current loops once scaling. Internal sequencing reduces CPU overhead - the host initiates one conversion and reads the result on interrupt. Typical applications include industrial process control and SCADA front-ends, multi-channel data loggers, weigh scales and load-cell instrumentation, factory automation analog input modules, automotive sensor interfaces, and medical patient-monitoring front ends. Anywhere a small-form-factor mixed-signal board needs to digitize 4-8 analog channels without paying for a full 16-bit pipeline ADC, the MAX181 series remains a viable solution - especially where component traceability and a single-IC footprint simplify certification. A key design tip: keep the AGND/DGND ground return short and provide a 0.1 µF ceramic bypass capacitor within 5 mm of each supply pin, plus a 10 µF tantalum bulk capacitor on VDD. The 44-PLCC socket footprint allows hand-rework with a PLCC extraction tool - one reason this part is still seen in legacy test fixtures and avionics repair lines. This page synthesizes distributor pricing tiers, parametric drop-in alternatives (including automotive-grade MAX181BCQH-D variants), and practical design notes that supplement the manufacturer datasheet for engineers sourcing legacy Maxim DAS parts.

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MAX182BCPI - 12-Bit 4-Ch SAR ADC w/ T/H and Reference | Maxim
MAX182BCPI

MAX182BCPI - 12-Bit 4-Ch SAR ADC w/ T/H and Reference | Maxim

The Maxim Integrated MAX182BCPI is a calibrated, 4-channel, 12-bit successive-approximation analog-to-digital converter (ADC) with an integrated track-and-hold amplifier and a precision on-chip voltage reference, housed in a 28-pin PDIP through-hole package. It delivers up to 17 ksps throughput across 4 single-ended or 2 differential analog input channels, while internal calibration circuitry maintains true 12-bit performance over the full commercial operating temperature range (0C to +70C) without external trims. An ADC (analog-to-digital converter) is a data-conversion integrated circuit that transforms continuous analog voltage signals at its inputs into discrete digital codes at its output, enabling microcontrollers, DSPs, or FPGAs to process real-world sensor signals. Successive-approximation-register (SAR) ADCs use a binary-search algorithm with an internal DAC and comparator to resolve N bits in N clock cycles, trading conversion speed for excellent DC accuracy, low latency, and very low power consumption - making SAR ADCs the dominant topology for industrial process control, instrumentation, and multichannel data-acquisition systems. Key features of the MAX182BCPI include an internal 2.5 V bandgap reference (with a REFADJ pin for external trim), a track-and-hold with 1.5 MHz full-power bandwidth, a parallel microprocessor interface, hard-wired channel sequencing or software-programmable channel selection, and single +5 V supply operation. The part draws approximately 4 mA active supply current and powers down to microamp-level standby between conversions, simplifying battery and portable designs. Internal autocalibration of linearity and offset runs at power-up and on demand via the CAL pin, eliminating periodic user adjustment. Typical applications include multichannel process-control data acquisition boards, portable or rack-mounted industrial instrumentation, sensor-signal conditioning front-ends, and embedded microprocessor analog I/O modules where the integrated reference and track-and-hold reduce external bill-of-materials cost and PCB area compared with discrete ADC + reference designs. When designing with this device, place 0.1 uF ceramic bypass capacitors close to the supply and reference pins, drive analog inputs through low-impedance buffers, and avoid routing digital lines under the analog input traces to preserve 12-bit noise performance.

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MAX182BCWI - 12-Bit 4-Ch 17ksps ADC with T/H & Reference | Maxim
MAX182BCWI

MAX182BCWI - 12-Bit 4-Ch 17ksps ADC with T/H & Reference | Maxim

The Maxim Integrated MAX182BCWI is a calibrated 12-bit, 4-channel analog-to-digital converter (ADC) with a track-and-hold amplifier and an internal 4.096V bandgap reference, offered in a 28-pin wide-body SOIC package. It performs successive-approximation conversions at up to 17 ksps across four single-ended or two differential analog input channels, with software-configurable unipolar or bipolar input ranges of 0 to +5V, 0 to +10V, +/-5V, or +/-10V. An ADC (Analog-to-Digital Converter) is a data-acquisition component that translates real-world continuous analog signals into discrete digital codes readable by a microcontroller, DSP, or processor. In the broader signal-chain hierarchy, the ADC sits between analog front-end conditioning (amplifiers, multiplexers, sensors) and digital processing; multi-channel ADCs like the MAX182 integrate channel switching, sample-and-hold, and reference, replacing a discrete implementation that would otherwise require a separate MUX, T/H, and reference IC. The MAX182 series uses successive-approximation register (SAR) architecture, which provides deterministic latency per conversion ideal for multiplexed data-acquisition systems. Key features include 17 ksps throughput, a 4.096V internal reference, software-configurable input ranges, on-chip calibration, a track-and-hold amplifier, and a parallel microprocessor interface. The integrated 4.096V reference simplifies analog input scaling for 0-5V or +/-5V ranges by providing 1 LSB = 1 mV resolution when the inputs are configured for unity-gain operation. Typical applications include industrial process-control data-acquisition systems, multi-loop programmable logic controllers (PLCs), analog I/O cards for PC-based measurement, and precision sensor signal digitisation. Designers select the MAX182 for its combination of integrated reference, multi-channel switching, and parallel interface that simplifies firmware handshaking. When designing with the MAX182BCWI, carefully review the input-channel protection and reference-bypass capacitor selection for noise immunity. Connect AGND and DGND with a low-impedance star ground near the IC, and add a 10 uF tantalum plus 0.1 uF ceramic bypass capacitor directly on the REF pin. This page synthesises distributor availability, drop-in pin-compatible alternatives, and practical PCB design guidance for the MAX182BCWI that are not found in the manufacturer datasheet alone.

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MAX1840/W - SIM/Smart-Card Level Translator | Analog Devices
MAX1840/W

MAX1840/W - SIM/Smart-Card Level Translator | Analog Devices

The Analog Devices MAX1840/W is a low-voltage SIM/smart-card level translator that provides bidirectional level shifting and ±10 kV ESD protection for SIM and smart-card ports, housed in a 10-pin µMAX package measuring only 1.09 mm high. It operates from a +2.7 V to +5.5 V supply and is compliant with GSM test specifications 11.11 and 11.12. A level translator (also called a level shifter) is a mixed-signal interface IC that converts logic signals between two different voltage domains. Within the semiconductor hierarchy, the MAX1840/W sits under interface ICs, which belong to the broader analog/mixed-signal integrated circuit family. SIM and smart-card interfaces require a dedicated translator because the card operates at 1.8 V, 3 V, or 5 V while the host controller may run at a different rail; the translator must also survive the ESD events that occur when a card is inserted or removed. The MAX1840/W integrates level-shifting circuitry for the SIM clock, reset, and bidirectional data lines, plus ESD protection diodes rated to ±10 kV (Human Body Model) on the card-side pins. Its ultra-small 10-pin µMAX package occupies roughly half the board area of an 8-pin SOIC, which is critical in GSM handsets where PCB real estate is at a premium. The device is specified over the -40 °C to +85 °C extended temperature range. Typical applications include SIM interfaces in GSM cellular telephones, smart-card readers, and SPI/QSPI/MICROWIRE level translation where a compact, ESD-hardened interface is needed. The MAX1840/W is the lead-free (W) variant of the MAX1840 family, making it suitable for RoHS-compliant production. When designing with the MAX1840/W, place the ESD protection close to the card connector and keep the card-side traces short to preserve the ±10 kV rating. The device is a legacy Maxim part now manufactured by Analog Devices; verify lifecycle status and availability before committing to new designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MAX184BC/D - 12-Bit High-Speed ADC w/ External Ref | Maxim Integrated
MAX184BC/D

MAX184BC/D - 12-Bit High-Speed ADC w/ External Ref | Maxim Integrated

The Maxim Integrated MAX184BC/D (now supplied by Analog Devices / Maxim Integrated) is a 12-bit high-speed successive-approximation analog-to-digital converter (ADC) supplied in an un-packaged bare die (DIE) form factor with 24 die terminals. It features an external reference input, industrial-commercial temperature grade, and single +5 V nominal supply with optional -12 V/-15 V supplies for bipolar input ranges. An SAR (Successive Approximation Register) ADC is a type of data converter that performs a binary search through an internal capacitive DAC to produce a digital output in N clock cycles for an N-bit conversion. SAR ADCs sit in the broader hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. Unlike flash ADCs, SARs trade speed for power efficiency and DC accuracy, while unlike delta-sigma ADCs, they offer low-latency conversions ideal for multiplexed acquisition. Key features include 12-bit resolution, external reference voltage for ratiometric or absolute measurements, and tracking/hold functionality on the analog front end. The device is well suited for high-accuracy instrumentation with compact PCB area because the bare-die format eliminates package parasitics and reduces footprint versus packaged SOIC or PDIP equivalents. Per the Maxim datasheet, the converter supports standard microprocessor interfaces, simplifying connection to MCUs and DSPs. Architecturally, the MAX184BC/D uses a charge-redistribution DAC array combined with a low-noise comparator and successive-approximation register. The external reference pin allows system designers to scale the analog input range independently of the supply rail, which is essential when digitizing signals from sensors whose full-scale output is far below +5 V. Internal clock-generation logic controls sample timing so that an external trigger is not strictly required. Typical applications include industrial process control data acquisition boards, precision sensor front ends (load cells, pressure transducers), motor control feedback sampling, multi-channel data loggers, and digital oscilloscope front-end digitizers. The wide operating temperature range supports harsh industrial environments including factory automation and motor drive systems. When designing with this part, ensure the reference bypass capacitors are placed close to the REF pin and that the analog input is well buffered; SAR ADCs present a switched-capacitive load at the input and are sensitive to source-impedance induced gain error. Designers should also budget for the bare-die assembly process including die attach, wire bonding, and an appropriate ceramic or metal package. This page synthesizes distributor pricing, packaged alternatives, and practical design notes for the MAX184BC/D not found in the original Maxim datasheet - useful for engineers weighing bare-die vs packaged ADC trade-offs.

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MAX186ACPP - 12-Bit 8-Ch 133kHz Serial ADC | Maxim/Analog Devices
MAX186ACPP

MAX186ACPP - 12-Bit 8-Ch 133kHz Serial ADC | Maxim/Analog Devices

The Maxim Integrated MAX186ACPP is a low-power, 8-channel, 12-bit serial-output analog-to-digital converter (ADC) housed in a 20-pin PDIP (through-hole) package. It integrates an 8-channel analog multiplexer, a wide-bandwidth track-and-hold amplifier, a successive-approximation ADC, an internal 4.096 V reference, and an SPI/QSPI/MICROWIRE-compatible serial interface. The device operates from a single +5 V supply (or ±5 V analog input range) and supports up to 133 kHz sampling rate with internal 4.096 V reference (MAX186) or external reference option (MAX188). A Data Acquisition System (DAS) is an integrated analog front-end that combines multiplexing, sample-and-hold, and ADC functionality in a single chip, eliminating the need for external analog signal conditioning. DAS devices sit at the analog boundary of mixed-signal systems, feeding the host microcontroller's digital domain. The MAX186ACPP belongs to the successive-approximation-register (SAR) ADC family - the workhorse architecture for multiplexed multi-channel data acquisition in industrial, instrumentation, and process-control applications. Key differentiating specifications include: 133 kHz maximum sampling rate, 1.5 mA operating supply current, 2 µA power-down current, internal 4.096 V reference, 8 single-ended or 4 differential input channels, and ±5 V true bipolar analog input range. The serial interface reduces pin count and simplifies isolated or distributed data acquisition layouts, while the 12-bit resolution delivers 1 LSB = 1 mV at the 4.096 V full-scale reference. The MAX186 uses a capacitive charge-redistribution SAR architecture with an on-chip calibration logic that corrects internal capacitor mismatch each conversion. The internal reference can be overridden by an external reference voltage applied to the REF pin, enabling ratiometric measurements where the excitation source doubles as the reference. The SHDN pin reduces quiescent current to 2 µA for battery-powered portable applications. Typical applications include process control and industrial automation, portable data loggers, battery-powered instrumentation, isolated data acquisition front-ends, panel meters, and multi-sensor embedded systems. The 8-channel mux eliminates external analog switches for typical multi-channel transducer monitoring. When designing with this device, place 0.1 µF bypass capacitors close to the supply pins and a 4.7 µF tantalum capacitor on the REF pin. The serial clock and chip-select traces should be kept short to avoid digital coupling into the analog inputs. For 50/60 Hz noise rejection, use averaging or synchronized sampling at integer multiples of the line frequency. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical PCB layout guidance not found in the manufacturer datasheet alone.

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MAX187BC/D - 12-Bit Serial SAR ADC, +5V, Die Form | Maxim Integrated
MAX187BC/D

MAX187BC/D - 12-Bit Serial SAR ADC, +5V, Die Form | Maxim Integrated

The Maxim Integrated (Analog Devices) MAX187BC/D is a +5V, low-power, 12-bit successive-approximation analog-to-digital converter (ADC) supplied in unpackaged die form (Package Code: DIE, 8 terminals). It accepts a 0V to 5V analog input, integrates an internal track/hold with 1.5 us acquisition time, an on-chip clock, an internal 4.096V buffered reference, and a high-speed 3-wire SPI/QSPI/MICROWIRE-compatible serial interface. The /D suffix designates bare-die delivery, intended for hybrid/MCM integration rather than conventional PCB soldering. A successive-approximation register (SAR) ADC is a converter architecture that performs a binary search against the analog input using an internal DAC and comparator, producing one bit per clock cycle. SAR ADCs are favored for medium-speed (kHz to low-MHz), low-latency, deterministic conversion because there is no pipeline delay - the result is valid exactly N+1 clock cycles after the CONVST edge. In the broader data-converter hierarchy, SAR ADCs sit between flash converters (fastest, highest power) and sigma-delta converters (highest resolution, lowest bandwidth); the MAX187BC/D targets instrumentation and process-control bandwidths. Key specifications include 12-bit resolution, 75 kHz sampling rate, +/-1/2 LSB integral nonlinearity (A-grade), 1.5 mA operating supply current, 2 uA shutdown current, and 7.5 mW typical power dissipation. The internal 4.096V buffered reference provides a stable, low-impedance reference without an external buffer, simplifying BOM and PCB area. The serial interface runs to SPI/QSPI/MICROWIRE peripherals on microcontrollers and DSPs without glue logic. Architecture-wise, the MAX187BC/D combines a capacitive DAC, a high-bandwidth track/hold, and a precision on-chip reference with factory trimming. The internal clock eliminates the need for an external ADC clock source, and the hardware SHUTDOWN pin reduces quiescent current to microampere levels for battery-powered designs. Typical applications include portable instrumentation, process-control data acquisition, pen-digitizers, battery-powered data loggers, isolated sensor front ends, and precision weighing scales where small PCB footprint and low power matter. The die format suits hybrid microcircuits and chip-on-board modules. Industrial temperature grades (C suffix, 0C to +70C) cover commercial environments. A primary design consideration with die-format parts is packaging and wire-bonding: the MAX187BC/D requires assembly onto a substrate or package with gold or aluminum wire bonds and hermetic/encapsulation protection. For PCB designs, designers typically select the pin-equivalent MAX187BCPA+ (PDIP-8) or MAX187BCWE+ (SOIC-16 wide). Designers should provide adequate input bypass (0.1 uF close to VDD) and a low-impedance analog ground return to preserve 12-bit linearity. This page synthesizes distributor pricing, drop-in package alternatives, and die-level design guidance that goes beyond the manufacturer datasheet. Engineers evaluating MAX187BC/D should treat the bare-die option as a hybrid-assembly component and weigh the BOM savings of internal reference and clock against the assembly complexity.

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MAX187BCPA - 12-Bit 75ksps Serial ADC + 5V | Maxim/ADI
MAX187BCPA

MAX187BCPA - 12-Bit 75ksps Serial ADC + 5V | Maxim/ADI

The Maxim Integrated (Analog Devices) MAX187BCPA is a 12-bit, 75 ksps, low-power, single +5V serial-interface analog-to-digital converter housed in an 8-pin PDIP package. The part combines a successive-approximation register (SAR) ADC core with a fast 1.5 µs track/hold, an internal 4.096 V buffered reference (MAX187 family), an on-chip clock, and a high-speed SPI/QSPI/MICROWIRE-compatible 3-wire serial interface, all in a compact through-hole 8-DIP footprint. A successive-approximation ADC (SAR ADC) is a type of data converter that uses a binary-search algorithm against an internal DAC to determine each digital output code. SAR ADCs are valued for deterministic latency, excellent DC linearity, and low power consumption relative to their throughput, which makes them the dominant choice for multiplexed data-acquisition systems, instrumentation, and process-control front-ends. The MAX187 sits in the product hierarchy of analog-to-digital converter -> data converter -> signal chain IC -> semiconductor. Key specifications include 12-bit resolution with ±½ LSB integral nonlinearity (MAX187A grade) or ±1 LSB (MAX187B/MAX187C grades), 75 kHz throughput, 8.5 µs successive-approximation conversion time, 1.5 µs acquisition time, single +5V operation, 1.5 mA operating current, 2 µA shutdown current, and 7.5 mW typical power dissipation reducing to 10 µW in shutdown. The 8-pin DIP pinout provides VDD, GND, VREF (4.096 V buffered), AIN, SCLK, DOUT, CS, and SHDN functions, all conveniently on a 0.300 inch (7.62 mm) through-hole lead pitch. The MAX187BCPA uses a charge-redistribution SAR architecture with an input track/hold and a laser-trimmed internal reference, achieving AC performance (SINAD and THD) suitable for instrumentation-grade measurements. The MAX187 differs from the pin-compatible MAX189 in that MAX187 integrates a 4.096 V buffered reference while MAX189 requires an external reference, so selection between the two depends on absolute-accuracy vs flexible-reference design priorities. Typical application areas include portable data loggers, industrial process-control analog input modules, weigh scales and strain-gauge digitizers, panel meters, isolated 4-20 mA loop read-back, and battery-powered instrumentation. The 75 ksps throughput and 5V-only operation are well-matched to multiplexing multiple slow analog channels in 12-bit precision systems. When designing with the MAX187BCPA, ensure the input source impedance is below approximately 1 kΩ to avoid ADC droop errors during the 1.5 µs acquisition window, and tie CS high between conversions to keep the device in shutdown and minimize power. A 0.1 µF decoupling capacitor placed within 5 mm of the VDD pin is required, and the internal reference should be bypassed with at least 4.7 µF at VREF to filter reference noise. This page consolidates distributor pricing, parametric drop-in alternatives in the same 8-DIP footprint, and practical design notes from the official Maxim datasheet to help engineers evaluate the MAX187BCPA against modern 12-bit ADC alternatives.

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MAX187BEPA - 12-Bit Serial ADC, +5V, 75ksps | Maxim Integrated
MAX187BEPA

MAX187BEPA - 12-Bit Serial ADC, +5V, 75ksps | Maxim Integrated

The Maxim Integrated MAX187BEPA is a 12-bit, low-power, serial-interface analog-to-digital converter (ADC) operating from a single +5V supply with a 75 kHz (8.5 µs conversion) successive-approximation architecture, housed in an 8-pin PDIP (through-hole) package. An ADC is a mixed-signal integrated circuit that converts a continuous analog voltage into a discrete digital code. The MAX187 sits in the successive-approximation register (SAR) ADC family - which combines a sample-and-hold front end, an internal DAC, and a comparator running a binary-search algorithm - offering a favorable trade-off between speed and accuracy for low-bandwidth instrumentation. As part of the broader data-converter hierarchy, the SAR ADC falls between high-speed flash converters (>100 MSPS) and high-resolution sigma-delta converters (>16 bits), making the MAX187 well suited to industrial control loops, panel meters, and portable data-acquisition front ends where single +5V supply operation simplifies power design. Key features include ±1/2 LSB integral nonlinearity (MAX187A/B grade), 1.5 µs acquisition-time track-and-hold, internal 4.096 V buffered reference (no external reference required), 3-wire SPI/QSPI/MICROWIRE-compatible serial interface, 1.5 mA typical operating current, and a 2 µA power-down shutdown mode. The 8-pin PDIP package (suffix E) supports breadboard-friendly through-hole prototyping and is the standard format for the B-temperature-grade (-40 °C to +85 °C) industrial variant. The MAX187 internal architecture combines an on-chip clock, a sample/hold amplifier, an internal reference buffer, and a digital serial output stage in a single die. Its true-differential analog input stage accepts a 0 V to 5 V unipolar range, while the internal 4.096 V reference and 12-bit resolution yield a 1 mV per LSB step size ideal for transducer digitisation. Typical applications include portable data loggers, industrial process control, isolated front-end signal conditioning with opto-isolated serial interfaces, battery-powered instrumentation, and panel-meter digitiser circuits. Designers select the MAX187 when board area is constrained, an external reference must be avoided, and a 3-wire serial interface to a microcontroller is sufficient. When designing with the MAX187, place the supply bypass capacitor (10 µF electrolytic plus 0.1 µF ceramic) within 5 mm of the VDD pin, keep the analog input traces short and guarded by ground, and observe the 8.5 µs minimum conversion time. The MAX187 differs from the pin-compatible MAX189 only in reference topology: the MAX187 integrates the 4.096 V reference, while the MAX189 requires an external reference. The MAX187 also differs from the MAX187A (tighter linearity) and MAX187C (commercial grade) only in linearity spec and temperature range, all of which share the 8-pin PDIP footprint. This page synthesises distributor pricing, drop-in 8-pin PDIP alternatives drawn from the same Maxim MAX187 family, and practical design notes not found in the manufacturer datasheet alone, providing engineers a single decision-ready resource.

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MAX187BEWE - 12-Bit 75ksps +5V Serial ADC | Maxim Integrated
MAX187BEWE

MAX187BEWE - 12-Bit 75ksps +5V Serial ADC | Maxim Integrated

The Maxim Integrated MAX187BEWE is a +5V, low-power, 12-bit successive-approximation analog-to-digital converter (SAR ADC) with a 75 ksps throughput rate, an internal 4.096 V buffered reference, and a 3-wire SPI/QSPI/MICROWIRE-compatible serial interface, packaged in a 16-pin WSOIC (wide-body SOIC). It accepts a 0V to 5V analog input range, integrates a 1.5 us track-and-hold, and draws only 1.5 mA operating current with a 2 uA shutdown mode for battery-friendly designs. A SAR ADC is a successive-approximation-register analog-to-digital converter that resolves one bit per clock cycle using a comparator, a DAC, and a binary-search register, trading conversion speed for excellent static accuracy and very low power consumption. In a typical signal chain, the SAR ADC sits between the analog front end (sensor + signal conditioning) and the digital controller (microcontroller, FPGA, DSP), translating real-world analog signals into 12-bit digital codes that downstream firmware can process. The MAX187's wide-SOIC pinout, internal reference, and serial interface made it a workhorse ADC of the 1990s and 2000s for industrial, instrumentation, and data-acquisition designs. Key differentiating features include 12-bit resolution with ±1/2 LSB integral nonlinearity (INL) on the B-grade, internal 4.096 V reference (MAX187 only; MAX189 requires external reference), single +5V supply operation, hardware- or software-controlled shutdown, and a high-speed 3-wire serial interface that simplifies opto-isolation in noisy industrial environments. Compared to the older MAX176/MAX186 family, the MAX187 reduces operating current and adds an internal reference, simplifying BOM cost. Typical applications include portable data loggers, battery-powered instrumentation, isolated sensor front ends using SPI over optocouplers, process-control analog I/O modules, panel meters, and pen/strain-gauge digitizers. The 75 ksps rate covers most 4-20 mA loop, RTD, thermocouple, and general-purpose instrumentation sampling needs while the 2 uA shutdown extends battery life in handheld meters. A critical design consideration is bypassing: place a 0.1 uF ceramic capacitor close to VDD and a 4.7 uF tantalum/ceramic at REF, plus a 0.01 uF ceramic at the analog input pin to minimize conversion noise. The serial interface supports SPI modes CPOL=0/CPHA=0 and CPOL=1/CPHA=1, but the MAX187 requires a minimum SCLK period of 130 ns (max 7.6 MHz external clock) when using an external serial clock. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single source for parametric comparison and PCB-compatible substitution.

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MAX187CCWE - 12-Bit 75kSPS Serial ADC | Maxim Integrated
MAX187CCWE

MAX187CCWE - 12-Bit 75kSPS Serial ADC | Maxim Integrated

The Maxim Integrated MAX187CCWE is a +5V, low-power, 12-bit serial successive-approximation analog-to-digital converter (SAR ADC) in a 16-pin SOIC wide package. It integrates an 8.5 us SAR core, a 1.5 us track/hold amplifier, an on-chip clock, and a high-speed 3-wire serial interface, accepting a single-ended 0V to 5V analog input. An SAR ADC is a type of analog-to-digital converter that uses a binary-search successive-approximation algorithm against an internal DAC to digitize an analog input one bit per clock cycle. SAR ADCs sit in the broader hierarchy of precision data converters -> ADCs -> successive-approximation ADCs -> integrated-circuit semiconductor. Compared with integrating or delta-sigma ADCs, SAR ADCs deliver the best combination of speed and accuracy for multiplexed or single-channel industrial sampling up to a few hundred kilosamples per second. Key features of the MAX187CCWE include 75 kSPS sampling rate, internal 4.096V reference, 1.5 us acquisition time, 8.5 us conversion time, low 1.5 mA operating supply current, and hardware- or software-configurable shutdown reducing quiescent current to a few microamps. The internal reference eliminates an external reference IC in many designs, saving board area and BOM cost. The MAX187CCWE uses a charge-redistribution SAR architecture with an internal capacitor DAC and a precision internal bandgap reference. Its high-speed serial interface is compatible with SPI, QSPI, and Microwire, allowing direct connection to most microcontrollers without glue logic. Internal calibration trims linearity, and the device maintains 12-bit performance across the commercial 0C to +70C temperature range. Typical applications include portable data logging, process control, pen digitizers, portable instruments, isolated data acquisition, and remote-sensor signal conditioning. The wide operating supply range and serial interface make it ideal for compact, low-power embedded designs where a microcontroller-based SPI host is already present. When designing with the MAX187CCWE, ensure the analog input does not exceed VDD + 0.3V to avoid latch-up. Place a 0.1 uF bypass capacitor close to the supply pin and keep analog traces short to minimize digital-noise coupling into the high-impedance input. This page synthesizes distributor pricing, drop-in alternatives within the MAX187 family, and practical design notes not found in the manufacturer datasheet alone.

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MAX187CEPA - 12-Bit Serial ADC, +5V, 75ksps, DIP-8 | Maxim
MAX187CEPA

MAX187CEPA - 12-Bit Serial ADC, +5V, 75ksps, DIP-8 | Maxim

The Maxim Integrated (now Analog Devices) MAX187CEPA is a +5V, low-power, 12-bit serial analog-to-digital converter (ADC) housed in an 8-pin PDIP (DIP-8) package. It accepts a 0V to 5V analog input, integrates a successive-approximation ADC with 8.5us conversion time, a 1.5us track/hold, an on-chip clock, and a high-speed 3-wire SPI/QSPI/MICROWIRE-compatible serial interface. An internal 4.096V buffered reference simplifies external circuitry and removes the need for a separate reference IC in most applications. An ADC (analog-to-digital converter) is a mixed-signal data-acquisition component that samples a continuous analog voltage and quantizes it into a discrete digital code. Within the power management and signal-chain hierarchy, ADCs sit downstream of analog signal conditioning (op-amps, filters) and upstream of microcontrollers, DSPs, or FPGAs. The MAX187 family belongs to the successive-approximation register (SAR) ADC category, which trades conversion speed for excellent static accuracy and low power consumption, making it a workhorse for industrial process control, instrumentation, and portable data-logger designs. Key specifications include 12-bit resolution, +/-0.5 LSB integral nonlinearity (INL) for the MAX187A grade, 75kHz (75ksps) sampling rate, 1.5mA operating supply current, and a 2uA shutdown current that lets battery-powered systems gate power between conversions. The MAX187 variant includes the internal 4.096V reference; the pin-compatible MAX189 leaves REF open for an external reference. Internal calibration circuitry holds linearity over the full operating temperature range. Typical applications include portable instrumentation, data loggers, process-control analog front ends, weigh scales, isolated sensor digitizers, and pen-digitizer / tablet digitizing systems. The wide analog input range (0 to 5V) plus internal reference make it a single-chip solution for many industrial 4-20mA loop and thermocouple-amplifier digitizing tasks. When designing with the MAX187CEPA, place 0.1uF decoupling close to VDD and follow the recommended REF bypass (4.7uF) to keep the internal reference quiet. Use the SHDN pin aggressively in battery systems - the 2uA quiescent current drops total system standby power dramatically versus always-on operation. This page synthesizes distributor pricing, pin-compatible drop-in alternatives (MAX187BEPA, MAX187ACPA+, MAX187CCPA+), and practical design notes not consolidated in the manufacturer datasheet, enabling faster engineering decisions.

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MAX187CEWE - 12-Bit 75kSPS Serial ADC, 16-SOIC | Maxim Integrated
MAX187CEWE

MAX187CEWE - 12-Bit 75kSPS Serial ADC, 16-SOIC | Maxim Integrated

The Maxim Integrated MAX187CEWE is a +5V, low-power, 12-bit successive-approximation analog-to-digital converter (SAR ADC) with an on-chip buffered reference, packaged in a 16-pin SOIC (wide-body, "WE") and rated for the extended industrial temperature range (C: -40°C to +85°C). It accepts a single-ended analog input from 0V to +5V and serializes conversion results over an SPI/QSPI/MICROWIRE-compatible interface at throughput up to 75k samples per second. According to the manufacturer datasheet, the part consumes only 7.5 mW during continuous conversion and drops to 10 µW in hardware shutdown, making it appropriate for battery and loop-powered instrumentation where thermal budget and quiescent draw matter. An ADC of this type is a mixed-signal data converter that digitizes a continuously variable analog voltage into a fixed-width binary code; the MAX187CEWE specifically uses a successive-approximation architecture, where an internal DAC and comparator walk through 12 bits one at a time per conversion. Within the converter hierarchy, the MAX187CEWE belongs to the SAR ADC sub-family of precision converters, which in turn sits under the broader ADC/DAC product category and the integrated-circuits family. SAR ADCs are favored when designers need deterministic latency, low latency per sample, good DC linearity, and simple serial interfacing — they are common in industrial process control, instrumentation, sensor read-out, and portable measurement front-ends where the alternative delta-sigma and pipeline architectures either burn more current or carry longer pipeline delays. Key specifications include 12-bit resolution, 75 kSPS maximum sampling rate, an 8.5 µs successive-approximation conversion time, a 1.5 µs acquisition track/hold, and ±1 LSB maximum integral nonlinearity. Power operation is single +5 V supply (specified 4.75 V to 5.25 V) with 1.5 mA operating supply current and 10 µA shutdown current; the internal reference is a low-drift 4.096 V bandgap. The 16-pin SOIC "WE" package gives a 0.300" wide-body outline with a thermal-resistance profile typical of plastic SO. Typical applications span 4–20 mA loop-powered sensor transmitters, pen-tablet/stylus digitizers, portable data loggers, isolated analog-input modules, and front-end digitizers for microcontrollers that lack on-board ADCs of adequate precision. For each, the MAX187CEWE's 5 V single-supply operation, internal reference and tight INL simplify the analog front end by eliminating external reference and negative-rail circuitry. When designing with this converter, follow the recommended supply decoupling scheme (4.7 µF + 0.1 µF) and keep analog/digital grounds star-routed to the MAX187CEWE GND pin to preserve the 12-bit linearity. Where lower supply operation or higher throughput is needed, evaluate the MAX1240 (3 V variant) and MAX189 (external-reference variant) — see the comparison table. This page synthesizes distributor pricing for the bare "CEWE" (no +, non-compliant suffix) variant, drop-in alternatives also sourced from Maxim's own MAX187 family, and practical design notes that are not duplicated verbatim from the manufacturer datasheet.

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MAX188BEPP - 12-Bit 8-Ch 133ksps Serial ADC | Maxim Integrated
MAX188BEPP

MAX188BEPP - 12-Bit 8-Ch 133ksps Serial ADC | Maxim Integrated

The Maxim Integrated MAX188BEPP is a low-power, 8-channel, 133 ksps, serial 12-bit analog-to-digital converter (ADC) with internal track/hold and reference, housed in a 20-pin PDIP package. It features 8 single-ended or 4 differential analog input channels, an internal 4.096 V reference, and an SPI/QSPI/Microwire-compatible serial interface that simplifies connection to most microcontrollers and DSPs. A successive-approximation ADC (SAR ADC) is a type of data converter that converts an analog input signal into a digital code by performing a binary search across an internal precision resistor ladder. SAR ADCs are valued for their deterministic latency, lack of pipeline delay, and excellent DC accuracy, making them the converter of choice for multiplexed data-acquisition front-ends, industrial process control loops, sensor signal chains, and instrumentation. Within the broader semiconductor taxonomy, the MAX188 sits in the data-acquisition IC category, adjacent to DACs, analog front-ends, and precision reference ICs. Key features of the MAX188BEPP include 133 kHz sampling rate, single +5 V or dual ±5 V supply operation, low operating current of 1.5 mA and an ultra-low 2 µA power-down current, ±5 V input range for bipolar signal acquisition, internal track/hold, and 4-wire serial output. The device accepts unipolar or bipolar analog inputs, providing flexible signal-conditioning headroom for transducer bridge circuits, thermocouple amplifiers, and 4-20 mA current-loop receivers. Architecturally, the MAX188 integrates an 8-channel analog multiplexer, a high-bandwidth track/hold, a precision 4.096 V internal reference, a 12-bit successive-approximation ADC core, and an SPI-compatible digital interface on a single die. The internal reference eliminates external reference cost and PC board area while delivering tight full-scale accuracy. The high-bandwidth track/hold captures fast-moving signals, and the 8-channel mux removes the need for external analog switches in multi-sensor systems. Typical applications for the MAX188BEPP include industrial process control, portable data-logging instruments, battery-powered sensor nodes, medical instrumentation front-ends, factory automation I/O modules, and distributed SCADA analog input cards. The 133 ksps throughput is well matched to multiplexing several channels of slowly-varying process signals. When designing with this ADC, place a 0.1 µF bypass capacitor as close as possible to the VDD pin, and provide adequate analog/digital ground separation with a single-point star connection near the IC. The internal reference requires a minimum 4.7 µF bypass capacitor on the REF pin for stable full-scale accuracy; omitting this degrades linearity. This page synthesizes distributor stock levels, drop-in alternatives, and practical design guidance that the bare datasheet does not provide, helping engineers shorten time-to-prototype for their 12-bit data-acquisition front-end.

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MAX189BC/D - 12-Bit SAR ADC, Serial, 75ksps | Maxim Integrated
MAX189BC/D

MAX189BC/D - 12-Bit SAR ADC, Serial, 75ksps | Maxim Integrated

The Maxim Integrated MAX189BC/D is a 12-bit, low-power, serial-output, successive-approximation analog-to-digital converter (SAR ADC) supplied as a bare die (D suffix). It operates from a single +5V supply, accepts a 0V to 5V analog input range, and includes an internal track/hold, an internal 4.096V buffered reference, and a 3-wire SPI/QSPI/MICROWIRE-compatible serial interface. The MAX189BC/D performs conversions in approximately 8.5 microseconds and supports a maximum throughput of 75 kilosamples per second (ksps). A SAR ADC (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. SAR ADCs balance conversion speed, power consumption, and resolution, making them the workhorse of medium-speed data-acquisition applications such as industrial sensors, handheld instruments, and process-control front-ends. In the broader IC taxonomy, an SAR ADC sits under Data Converters -> ADCs -> Medium-Speed ADCs -> Power-Efficient ADCs. Key features of the MAX189BC/D include +/- 1/2 LSB integral nonlinearity (INL), a fast 1.5-microsecond acquisition-time track/hold, an internal 4.096V reference that can also drive external loads, a hardware- or software-controllable shutdown mode that drops supply current to 2 microamps, and 1.5 mA operating current. The serial interface is compatible with SPI, QSPI, and MICROWIRE, easing connection to most modern microcontrollers and DSPs without external glue logic. The MAX189BC/D's architecture uses a capacitive-charge-distribution DAC at its core, with a precision comparator and SAR logic, plus an integrated reference and reference buffer. The "C" speed grade and "B" resolution grade (with +/- 1 LSB INL vs. the A grade +/- 1/2 LSB) make the BC variant an attractive cost-optimized option. The bare-die format allows hybrid-module integrators and MCM (multi-chip-module) designers to minimize parasitic inductance and shrink board area beyond what packaged parts permit. Typical applications include portable data loggers, pen-tablet digitizers, battery-powered instrumentation, isolated sensor read-out stages, and industrial process-control front-ends. The combination of a single +5V supply, low power, and serial output suits distributed measurement nodes and space-constrained designs. When designing with the MAX189BC/D, provide a clean analog ground plane separate from the noisy digital return, bypass VDD with a 0.1 microfarat ceramic close to each die supply bond, and use the SHDN pin for duty-cycling to extend battery life. The internal reference can source up to several hundred microamps; if your design also needs a reference for external ADCs, budget that current draw into the worst-case accuracy calculation. This page synthesizes distributor pricing, pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet.

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MAX189BEPA+ - 12-Bit Serial ADC, +5V, 75kSPS | Maxim Integrated
MAX189BEPA+

MAX189BEPA+ - 12-Bit Serial ADC, +5V, 75kSPS | Maxim Integrated

The Analog Devices (formerly Maxim Integrated) MAX189BEPA+ is a 12-bit, low-power, serial-output successive-approximation analog-to-digital converter (ADC) operating from a single +5V supply, housed in an 8-pin PDIP package. It accepts a 0V to 5V analog input range, includes an internal track/hold with 1.5us acquisition time, and provides a high-speed 3-wire SPI/QSPI/MICROWIRE-compatible serial interface. The device supports a 75 kHz sampling rate with 8.5us conversion time, drawing only 1.5 mA operating current and dropping to 2uA in shutdown mode. A successive-approximation register (SAR) ADC is a type of analog-to-digital converter that uses a binary search algorithm and an internal capacitive DAC to convert each analog sample in a fixed number of clock cycles. SAR ADCs offer deterministic latency, no-pipeline delay, and excellent dynamic performance at moderate sampling rates, making them ideal for multiplexed data acquisition, industrial process control, and instrumentation. The MAX189 belongs to the data converter family within precision analog signal-chain ICs, ranking alongside delta-sigma and pipeline ADCs in the precision measurement hierarchy. Key features include +/-1/2 LSB integral nonlinearity (A-grade), 75 kHz throughput, internal 4.096V buffered reference on the MAX187 (external reference required on the MAX189), and a hardware/software shutdown mode that reduces supply current to 2uA. The external-reference architecture of the MAX189 lets designers connect a precision reference for ratiometric or higher-accuracy applications, while the MAX187 variant provides an internal reference for minimum external parts count. Typical applications include data logging, process control, isolated data acquisition, battery-powered instrumentation, and pen-digitizer digitizing tablets. The wide supply tolerance of 4.75V to 5.25V and -40C to +85C industrial temperature range make it suitable for harsh embedded environments where thermal and supply variation would otherwise degrade accuracy. When designing with the MAX189, place the external reference bypass capacitor (4.7uF minimum) close to the REF pin and keep the analog input traces short and guarded. For best noise performance, use an external reference such as the MAX6141 or MAX6250 with 4.096V output to match the input span. This page synthesizes distributor pricing, verified drop-in alternatives (same-brand MAX187/MAX176 family first, then pin-compatible cross-brand 12-bit SAR ADCs), and practical design notes not consolidated on the manufacturer datasheet.

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MAX190ACWG - 12-Bit 75ksps SAR ADC, SOIC-24 | Analog Devices
MAX190ACWG

MAX190ACWG - 12-Bit 75ksps SAR ADC, SOIC-24 | Analog Devices

The Analog Devices (formerly Maxim Integrated) MAX190ACWG is a low-power, 12-bit sampling analog-to-digital converter (ADC) with internal reference and power-down capability, housed in a 24-pin wide SOIC (WG) package. It delivers up to 75 ksps throughput from a single +5V analog supply, drawing only 3 mA quiescent current during conversion and dropping to 60 µA in software-controlled power-down mode. The device integrates an internal 4.096V bandgap reference, a successive-approximation register (SAR) architecture, and an on-chip sample-and-hold amplifier. An ADC (Analog-to-Digital Converter) is a data-acquisition component that converts continuous analog signals into discrete digital codes. The MAX190 belongs to the SAR (Successive Approximation Register) family of ADCs, which sit in the broader hierarchy: SAR ADC -> data converter -> ADC/DAC -> signal-chain IC -> semiconductor. SAR ADCs offer a strong balance of speed, resolution, and power for multiplexed or single-channel precision measurement in industrial, instrumentation, and process-control systems. Key features of the MAX190ACWG include ±0.5 LSB integral nonlinearity (INL) in the A-grade, internal low-drift reference, software-configurable unipolar (0 to +5V) or bipolar (±5V) analog input range, and a Byte-wide parallel data interface. The device requires an external 2.5 MHz to 5 MHz serial clock, and its 100 ns acquisition time supports full 75 ksps conversion throughput on a single acquisition/conversion cycle. The integrated reference eliminates the need for external precision components, reducing BOM cost and PCB area. Typical applications include data-logging systems, pen digitizers, portable instrumentation, industrial process control, and battery-powered measurement equipment where the 60 µA power-down mode significantly extends battery life. The MAX190ACWG is the commercial temperature grade (0°C to +70°C), while the MAX190AEWG is the extended temperature grade (−40°C to +85°C) for harsher environments. Designers should add a 10 µF bypass capacitor on the analog supply and follow standard ADC layout practices — keep analog and digital ground planes separate and connect them only at a single point near the IC. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate the MAX190ACWG for both new designs and legacy maintenance.

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MAX190BCWG+T - 12-Bit 75ksps SAR ADC w/ Ref | Maxim Integrated
MAX190BCWG+T

MAX190BCWG+T - 12-Bit 75ksps SAR ADC w/ Ref | Maxim Integrated

The Maxim Integrated MAX190BCWG+T is a 12-bit, low-power, successive-approximation analog-to-digital converter (SAR ADC) with an internal 2.5V reference, an on-chip track-and-hold, and a hardware power-down mode, housed in a 24-pin wide-body SOIC package. It supports a 75 ksps sampling rate on a single +5V analog supply (with an optional +5V digital supply) and offers both serial and parallel (8-bit bus) digital interfaces for design flexibility. An SAR ADC is a successive-approximation-register analog-to-digital converter, a category of precision data converter that uses an internal binary-search algorithm and a precision DAC to convert an analog input to a digital code in N clock cycles (N = resolution in bits). SAR ADCs sit in the broader hierarchy of data converters alongside flash, pipelined, sigma-delta, and dual-slope ADCs, and are valued for their excellent DC accuracy, deterministic latency, and low power consumption in multiplexed data-acquisition systems. The MAX190BCWG+T integrates a 2.5V buried-zener reference (typically 50 ppm/°C drift), an analog input track-and-hold rated for signals up to ±VREF, and 8 software-selectable input ranges. Key specifications include ±0.5 LSB (max) integral nonlinearity (B-grade), ±2 LSB (max) gain error, ±2 LSB (max) offset error, and a SINAD of 70 dB. Power consumption is approximately 5 mW active and under 10 µW in shutdown, while the serial interface supports SPI/QSPI/MICROWIRE-compatible mode 0 communication. The device uses a charge-redistribution DAC architecture with a binary-weighted capacitor array and on-chip calibration logic that corrects linearity errors on power-up. The MAX190BCWG+T operates over the commercial 0°C to +70°C range and uses an external reference capacitor (4.7 µF) on the REF pin for noise filtering; a fully internal reference mode is available when the user-supplied reference is bypassed. Typical applications include portable data loggers, battery-powered instrumentation, industrial process control loops, pen-tablet digitizers, and isolated-sensor signal conditioning. Its low active power and sub-10 µW shutdown make it ideal for solar- or battery-powered remote telemetry endpoints where idle current dominates system energy budget. When designing with the MAX190BCWG+T, the 4.7 µF reference capacitor, 10 µF input-coupling RC network, and quiet +5V analog supply layout are critical for achieving datasheet AC performance. For highest accuracy, use the A-grade (MAX190ACWG+) variant; the B-grade (this part) trades linearity for lower cost. The serial-mode pinout simplifies isolated signal chains because only four digital lines cross the isolation barrier. This page synthesizes distributor pricing from DigiKey, Mouser, and Octopart, drop-in and pin-compatible alternatives (MAX190ACWG+, MAX190AEWG+, MAX190BEWG+, etc.), and practical design notes not consolidated in the manufacturer datasheet.

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MAX19192ETI/V+ - 10Msps Dual 8-Bit Ultra-Low-Power ADC | Maxim
MAX19192ETI/V+

MAX19192ETI/V+ - 10Msps Dual 8-Bit Ultra-Low-Power ADC | Maxim

The Maxim Integrated (now Analog Devices) MAX19192ETI/V+ is an ultra-low-power, dual-channel, 8-bit analog-to-digital converter (ADC) capable of 10Msps sampling rate per channel, housed in a 28-pin thin QFN (TQFN) package measuring 5 mm x 5 mm. The device features two fully differential wideband track-and-hold (T/H) front ends with 440 MHz input bandwidth, supporting both fully differential and single-ended input signals. Typical signal-to-noise-plus-distortion (SINAD) is 48.6 dB at a 1 MHz analog input frequency, with spurious-free dynamic range (SFDR) performance suitable for mid-tier communications and instrumentation. An ADC (Analog-to-Digital Converter) is a mixed-signal integrated circuit that samples continuous analog voltage levels and converts them into discrete digital codes. Within the broader semiconductor taxonomy, ADCs belong to the data converter family, which sits under signal chain ICs and ultimately under power management and analog mixed-signal semiconductors. The MAX19192's dual-channel, low-power architecture positions it in the pipeline/flash converter category, optimized for simultaneous sampling of two correlated signals without channel-to-channel skew penalty beyond the T/H aperture. Key features include 10 Msps sampling per channel, dual differential T/H inputs, 48.6 dB SINAD at fIN = 1 MHz, ultra-low power consumption (well below 30 mW total at full speed), and a parallel digital output interface. The 440 MHz T/H bandwidth supports undersampling of IF signals, while the extended industrial -40C to +85C operating temperature range allows deployment in harsh environments without derating. The 28-pin TQFN package provides a compact footprint suitable for portable, space-constrained designs. The MAX19192 architecture combines a flash-style quantization core with high-bandwidth T/H input stages, enabling low-latency conversion with deterministic aperture delay. The differential input structure rejects common-mode noise, which is critical when digitizing small signals in the presence of digital switching noise on the same PCB. Internal reference and clock buffering simplify external BOM. Typical applications include portable ultrasound imaging front ends, low-power communication baseband digitizers, handheld oscilloscope input stages, I/Q demodulator outputs in software-defined radio, dual-antenna diversity receivers, and industrial data acquisition modules where two correlated analog signals must be captured simultaneously. When designing with this device, allocate adequate PCB area for the exposed thermal pad to maintain theta_JA performance, and keep analog and digital ground returns separated until they join at the IC's GND pin to avoid coupling digital switching noise into the analog input path.

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MAX191BC/D - 12-Bit 100ksps SAR ADC w/ Internal Ref | Maxim
MAX191BC/D

MAX191BC/D - 12-Bit 100ksps SAR ADC w/ Internal Ref | Maxim

The Maxim Integrated MAX191BC/D is a monolithic CMOS 12-bit analog-to-digital converter (ADC) featuring differential inputs, on-chip track/hold, internal 4.096V voltage reference, internal or external clock, and parallel or serial microprocessor interface. It delivers a 7.5us conversion time and a 2us acquisition time, guaranteeing a 100ksps sample rate. The MAX191BC/D is supplied as bare die (/D suffix), targeting compact hybrid assemblies and multi-chip modules where the converter is bonded directly inside the package. An SAR (Successive Approximation Register) ADC is a type of data converter that resolves one bit per clock cycle by comparing the sampled input against a precision DAC driven by a binary-weighted register. SAR ADCs combine high accuracy (typically 12-18 bits), zero pipeline latency, and excellent DC input behavior, making them the architecture of choice for multiplexed data acquisition systems, precision instrumentation, and process-control front-ends. Within the broader taxonomy, the SAR sits between flash converters (faster, lower resolution) and delta-sigma converters (slower, higher resolution). Key features of the MAX191BC/D include 12-bit resolution with 1/2 LSB linearity at +/-5V operation, a built-in track/hold, an adjustable internal reference, low power consumption of 3mA in operating mode and 20uA in power-down, and a logic-level PWRDN input. It accepts single +5V or dual +/-5V supplies, allowing ground-referenced bipolar inputs of up to +/-5V. The part uses a SAR core with internal calibration logic for excellent linearity without external trimming. The MAX191 is most commonly used in high-accuracy data-acquisition boards, industrial process control, battery-powered portable instrumentation, and pen-digitizer/sensor signal chains. The wide bipolar input range simplifies signal conditioning when measuring ground-referenced signals. The low 20uA power-down current extends battery life in duty-cycled portable systems, and the die form factor minimizes PCB area. When designing with the MAX191BC/D, observe proper die-handling and ESD procedures because the bare die is exposed. Use a low-impedance analog ground plane and decouple AVDD/DVDD with separate 0.1uF/10uF capacitors placed within 5mm of the bond pads. The internal reference may be overdriven with an external 4.096V source if higher accuracy or lower drift is required. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers accelerate their selection and PCB-layout decisions for new designs and MAX191BC/D replacements.

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