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MAX19528EXE+

MAX19528EXE+ - 12-Bit 8-Channel 64MSPS ADC | Maxim Integrated

The Maxim Integrated MAX19528EXE+ is a 12-bit, 8-channel, 64MSPS analog-to-digital converter (ADC) housed in a 144-pin TFBGA (CTBGA) package with serial data interface. It integrates a high-speed sampling pipeline and 8 analog input channels on a single die, making it suitable for multi-channel data acquisition systems. An ADC (Analog-to-Digital Converter) is a semiconductor device that converts continuous analog voltage signals into discrete digital codes. As a member of the data-converter category, the ADC sits between the analog front-end (sensors, amplifiers, anti-alias filters) and the digital back-end (DSP, FPGA, microcontroller). Multi-channel, high-speed ADCs like the MAX19528 enable simultaneous sampling of multiple signal sources in applications such as medical imaging, communications, and test instrumentation. Key features include 12-bit resolution, 64MSPS sampling rate per channel, 8 single-ended input channels, and a serial LVDS-compatible data interface that minimizes pin count and EMI in dense layouts. The 144-TFBGA package supports compact PCB designs while providing excellent thermal dissipation for high-speed conversion. The device operates from a single low-voltage supply (typically 3.3V) and supports an external reference for design flexibility. The MAX19528 uses a pipelined architecture with internal sample-and-hold and error-correction logic, achieving low latency and high spurious-free dynamic range (SFDR). The serial interface supports both DDR and SDR modes, providing design flexibility for downstream FPGA/ASIC data capture. Typical applications include medical ultrasound imaging, multi-channel communications receivers, portable instrumentation, and radar systems. The 8-channel architecture makes it ideal for phased-array beamforming in ultrasound and MIMO wireless receivers where simultaneous sampling across channels is required. When designing with this device, ensure proper analog input filtering and impedance matching. The serial interface requires careful PCB layout with matched-length traces and a stable reference voltage for optimal SFDR performance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MAX19528EXE+T

MAX19528EXE+T - 12-Bit 8-Ch 64MSPS ADC | Maxim Integrated

The Analog Devices (formerly Maxim Integrated) MAX19528EXE+T is a 12-bit resolution, 8-channel, 64 MSPS (mega-samples per second) analog-to-digital converter (ADC) housed in a 144-pin thin-profile fine-pitch BGA (CTBGA) package and supplied on Tape and Reel. It features a serial digital data interface and is intended for high-speed multi-channel data acquisition systems where board density and channel count are both critical. An ADC (analog-to-digital converter) is an integrated circuit that converts continuous analog signals into discrete digital codes, enabling real-world analog phenomena to be processed by digital signal processors, FPGAs, and microcontrollers. Multi-channel, high-speed ADCs like the MAX19528 sit within the broader data acquisition and signal chain hierarchy: ADC -> data converter -> data acquisition IC -> mixed-signal semiconductor. They are commonly paired with operational amplifiers for input buffering, voltage references for absolute accuracy, and clock generators for sample timing. Key features include 12-bit native resolution, eight simultaneous-sampling input channels, 64 MSPS maximum sampling rate, a serial output interface that reduces pin count versus parallel ADCs, and a compact 144-pin CTBGA package measuring roughly 12 mm x 12 mm. The combination of channel density and sample rate makes the part particularly suited for imaging, ultrasound, communications baseband, and multi-phase motor control front-ends. The device integrates an internal reference and input track-and-hold amplifiers per channel, simplifying the external analog front end. Designers should observe the datasheet's recommended layout for the exposed paddle beneath the CTBGA, which serves as the primary thermal and ground return path and must be soldered to a continuous ground plane for ADC noise performance. Typical applications include medical imaging receivers, multi-channel baseband digitizers in software-defined radio, ultrasound beam-forming front-ends, industrial process control and instrumentation, and radar / phased-array intermediate-frequency sampling. When designing with this ADC, prioritize a low-noise ground plane and short, matched analog input traces. Decouple AVDD with 0.1 uF ceramic capacitors placed as close to the supply pins as possible, and keep digital output traces away from analog input traces to minimize digital coupling into the sampling network. This page consolidates distributor pricing, same-brand and cross-brand drop-in alternatives, and practical PCB design notes that are not found in the manufacturer datasheet alone, giving engineers a single reference for sourcing and qualifying the MAX19528EXE+T.

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MAX19538ETL+T

MAX19538ETL+T - 12-Bit 95Msps 3.3V ADC, TQFN-40 | Maxim Integrated

The Maxim Integrated MAX19538ETL+T is a 3.3V, 12-bit, 95Msps analog-to-digital converter (ADC) featuring a fully differential wideband track-and-hold (T/H) input amplifier driving a low-noise internal quantizer, packaged in a 40-pin TQFN-EP 5x5 mm (TQFN-40, MO-220-WJJD) case with an exposed thermal pad. A pipelined ADC is a high-speed successive-approximation architecture that converts each analog sample in a sequence of low-resolution flash stages, achieving sample rates well above what a successive-approximation register (SAR) topology can deliver. The MAX19538ETL+T belongs to the broader data-converter IC family, sitting alongside successive-approximation and sigma-delta ADCs, and is optimized for low power, small size, and high dynamic performance in communication and instrumentation systems. Key specifications include 95 Msps sample rate, 12-bit resolution, single 3.3V analog supply operation, 70.9 dB/68.4 dB SNR at fIN of 3 MHz and 175 MHz, and 89.0 dBc/76.2 dBc SFDR at fIN of 3 MHz and 175 MHz. The small-signal noise floor is -71.5 dBFS, and the input amplifier supports direct IF sampling up to 400 MHz, allowing undersampling of intermediate-frequency signals without an external down-conversion stage. The internal pipelined architecture combined with a fully differential T/H front end provides excellent common-mode rejection and spurious-free dynamic range at high input frequencies. The quantizer outputs are delivered through a parallel CMOS-compatible digital interface, simplifying FPGA or ASIC capture. The MAX19538ETL+T also provides a common-mode reference that simplifies external driver design for single-ended or differential analog input sources, and the part accepts either a single-ended or differential input clock drive. Typical applications include wireless infrastructure base-station IF digitizers, broadband communications receivers, ultrasound and medical imaging front ends, high-speed instrumentation, and radar/IF signal processing. The wide IF bandwidth and 95 Msps throughput allow a single ADC to handle multiple carrier bands in multicarrier radio designs. When designing with the MAX19538ETL+T, route analog input traces as 100 ohm differential pairs and keep them short and symmetric. Provide separate analog and clock ground returns tied to the exposed pad (EP), and use a low-noise LDO such as a MAX19538-recommended supply for AVDD to preserve the 70.9 dB SNR figure. Decouple AVDD and DRVDD independently to prevent digital switching noise from coupling back into the analog front end. This page synthesizes distributor pricing, drop-in alternatives, application references, and practical layout guidance that goes beyond the manufacturer datasheet to accelerate your design-in.

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MAX19542EGK+D

MAX19542EGK+D - 12-Bit 170Msps ADC, CMOS Outputs, 68-QFN

The Maxim Integrated (now Analog Devices) MAX19542EGK+D is a 12-bit, 170 Msps pipelined analog-to-digital converter (ADC) with CMOS parallel outputs, housed in a 68-pin QFN (10x10 mm) package with exposed pad. It targets wideband signal-chain applications requiring high spurious-free dynamic range (SFDR) and low noise density, including communications baseband, radar IF digitisation, and medical imaging front ends. What is a pipelined ADC? A pipelined analog-to-digital converter is a multi-stage architecture where each stage samples, holds, quantises coarsely, and drives a residue into the next stage. Pipelined ADCs dominate the 10-bit-to-16-bit, 50 Msps-to-500 Msps performance envelope because they balance conversion speed, power dissipation, and dynamic range. As a member of the data-converter IC family, the MAX19542 sits within the broader signal-chain hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor IC, where it serves as the boundary between the analog transducer world and the digital signal processor or FPGA. Key features include 64.3 dB SNR at full 170 Msps, 73 dBc SFDR, ±0.7 LSB integral nonlinearity (INL), ±0.25 LSB typical differential nonlinearity (DNL), 907 mW power dissipation at 170 Msps, and an on-chip selectable divide-by-2 clock divider. The wide 250 MHz analog input bandwidth enables undersampling architectures, while the CMOS-compatible parallel interface simplifies connection to ASICs and FPGAs. Industrial-grade -40C to +85C operating temperature range supports outdoor and harsh-environment deployment. Designers choose the MAX19542EGK+D when digitising IF signals above 100 MHz where 10-bit to 12-bit dynamic range is sufficient, when LVDS is unnecessary (CMOS outputs reduce FPGA pin count), or when migrating legacy designs that pin-out to the MAX19541 (125 Msps) or MAX19542 (170 Msps) pin-compatible family. Power sequencing, low-jitter clock distribution, and 50-ohm input termination are the primary design considerations.

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MAX19542EGK+TD

MAX19542EGK+TD - 12-Bit 170Msps ADC, 68-QFN | Maxim Integrated

The Maxim Integrated MAX19542EGK+TD is a 12-bit, 170 Msps analog-to-digital converter (ADC) with parallel CMOS outputs, housed in a 68-pin QFN (10x10 mm) package with exposed pad. It targets wideband analog signal acquisition applications including communications basestations, instrumentation, and IF/RF digitizers. According to the manufacturer datasheet, the device features an input range of 1.41 Vp-p, SNR of 64.3 dB at 170 Msps, and SFDR of 73 dBc, all measured with fIN near Nyquist. What is a high-speed ADC? A high-speed ADC (analog-to-digital converter) is a data-conversion IC that samples an analog input signal at very high sample rates - typically tens to hundreds of megasamples per second - and produces a multi-bit parallel or serial digital representation of that input. High-speed ADCs sit in the data-converter family, which belongs to the broader semiconductor category of mixed-signal integrated circuits. They are a critical building block in any system where analog signals must be digitized for DSP, FPGA, or processor analysis, bridging the analog front-end and the digital back-end of a receiver. The MAX19542EGK+TD integrates a calibrated 12-bit pipeline core with an internal bandgap reference and on-chip selectable divide-by-two clock input, removing the need for an external reference in many designs. A pin-compatible 125 Msps variant (MAX19541) is also available from Maxim, simplifying redesign across sample-rate requirements. Performance is dominated by 64.3 dB SNR and 73 dBc SFDR with ±0.7 LSB INL and ±0.25 LSB DNL (typical) at the full 170 Msps rate. Power dissipation is around 907 mW at 170 Msps, which must be considered in system thermal budgets. Architecture is optimized for IF/RF sampling in communications equipment where spurious-free dynamic range dominates overall receiver linearity. Typical applications include wideband communications receivers, radar and satellite IF digitizers, digital oscilloscopes, MRI/CT imaging front-ends, and cable TV head-end QAM demodulators. The 68-QFN layout provides a low-inductance ground and thermal path via the exposed pad (EP), critical for multi-GHz analog signal integrity. Design consideration: provide a clean low-jitter clock to the CLK input - the SNR degrades approximately 1 dB per 100 fs of added clock jitter for a 170 MHz input tone, so a high-performance clock source or jitter-cleaner upstream is essential for full datasheet SNR. Decouple AVDD and DVDD separately with 0.1 µF and 10 µF ceramic capacitors placed within 3 mm of each supply pin, and stitch the EP ground plane with multiple vias. This page synthesizes distributor pricing, drop-in alternatives, comparison table, and practical design guidance not aggregated in the manufacturer datasheet.

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MAX195BC/D

MAX195BC/D - 16-Bit 85ksps SAR ADC, Die | Maxim Integrated

The Maxim Integrated MAX195BC/D is a 16-bit, 85 ksps successive-approximation analog-to-digital converter (ADC) built on a low-power CMOS process, supplied here in bare-die (D) form. It provides 16 single-ended input channels, an external reference input, and a 10 uA shutdown mode, all on a single chip with internal calibration for linearity and offset correction. A successive-approximation ADC is a converter architecture that uses an internal binary-weighted DAC and a comparator to resolve one bit per conversion step, yielding a fixed number of clock cycles per conversion. SAR ADCs sit at the boundary between high-accuracy and high-speed conversion, fitting between fast flash converters and ultra-precise delta-sigma ADCs. The MAX195 family adds internal calibration and a low-power shutdown to the classic SAR topology, making it well suited for battery-powered instrumentation where both accuracy and standby current matter. Key features include 16-bit resolution with no missing codes, 85 ksps throughput, a 3-wire SPI-/QSPI-/MICROWIRE-compatible serial interface, ±5V bipolar or 0V-to-VDD unipolar analog input range, and an internal 4.096V reference option. The shutdown mode reduces supply current to 10 uA between conversions, and the device operates over the commercial 0C to +70C temperature range, with the wider -40C to +85C grade available in the BE suffix part family. The MAX195 architecture combines a charge-redistribution capacitor-DAC, an auto-calibrating comparator, and a successive-approximation register. Per data sheet, internal calibration runs automatically at power-up and on demand, trimming both linearity and offset errors against the external reference voltage applied to the REF pin. This self-calibration, combined with the 85 ksps throughput and 10 uA shutdown, enables high-accuracy battery-powered data acquisition systems without requiring periodic user recalibration. Typical applications include portable data loggers, pen-tablet digitizers, industrial process-control front ends, medical instrumentation front-end signal acquisition, and battery-powered measurement systems where low standby current is essential. When designing with the MAX195BC/D bare-die variant, plan the die layout carefully: provide a low-impedance analog ground, decouple VDD and VSS with 0.1 uF ceramic capacitors placed close to the bond pads, and route the serial-interface lines (DOUT, SCLK, CNVST) away from the analog inputs to avoid digital coupling into the conversion result. This page synthesizes distributor pricing, drop-in alternatives, and practical layout notes not found in the manufacturer datasheet, providing an engineering-ready view of a legacy high-accuracy ADC.

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MAX195BCWE

MAX195BCWE - 16-Bit 85ksps SAR ADC | Analog Devices | SOIC-16

The Analog Devices MAX195BCWE is a 16-bit, 85 ksps successive-approximation analog-to-digital converter (SAR ADC) with 10 µA shutdown mode, packaged in a 16-pin SO (SOIC-16, 0.3 inch wide) and capable of ±5V bipolar input ranges when used with an external reference. Per the Analog Devices product page, the MAX195 family is offered in 1ku list price tiers starting from $58.95, with the BCWE grade delivering B-grade linearity in a wide-body surface-mount footprint. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that quantizes a continuous analog input voltage into a discrete digital code. Successive-approximation (SAR) ADCs use an internal binary search against a reference to convert each sample in N clock cycles, trading off sample rate for resolution. The MAX195BCWE sits inside the broader hierarchy: SAR ADC -> ADC -> data converter -> mixed-signal IC -> semiconductor. SAR ADCs are favored over delta-sigma for multiplexed multi-channel data acquisition where low latency and deterministic throughput matter. Key features include 16-bit no-missing-code resolution, 85 ksps maximum sample rate, ±0.5 LSB (B-grade) integral nonlinearity, single +5V analog supply operation, and an SPI/QSPI/MICROWIRE-compatible serial interface. The MAX195 also provides unipolar (0V to VREF) or bipolar (-VREF to +VREF) input ranges selected by a single pin, and a hardware-shutdown mode that drops supply current to 10 µA for battery-powered portable instrumentation. Technically, the MAX195 uses an on-chip capacitive charge-redistribution DAC and an internal calibration cycle that corrects linearity and offset errors at power-up. Separate analog (AVDD) and digital (DVDD) supplies minimize digital-noise coupling into the analog input path, a critical detail for low-noise 16-bit signal chains. The part accepts an external reference up to +5V, allowing trade-offs between input range and thermal noise. Typical applications include industrial process control loops, portable data loggers, instrumentation front ends, weigh scales, and multi-channel data acquisition systems. The MAX195 is also widely used in legacy designs that require a 16-bit SAR ADC in a SOIC-16 footprint with SPI compatibility, where replacement parts must remain pin-compatible to avoid board rework. A practical design consideration: the external reference IC directly determines the converter's absolute accuracy and noise floor. Use a low-noise, low-drift reference such as the AD588 or MAX6350 for best 16-bit performance. Decouple AVDD and DVDD with separate 0.1 µF ceramic + 10 µF tantalum pairs to prevent digital switching noise from coupling into the analog front end. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the bare manufacturer datasheet, including a cross-reference to SOIC-16 same-package parts verified on DigiKey, Mouser, and Octopart.

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MAX195BCWE+G002

MAX195BCWE+G002 - 16-Bit 85ksps SAR ADC | Analog Devices

The Analog Devices (formerly Maxim Integrated) MAX195BCWE+G002 is a 16-bit, 85ksps successive-approximation analog-to-digital converter with 10µA shutdown current, supplied in a 16-pin WSOIC (wide SOIC) package. It integrates high speed (85ksps), high accuracy (±0.5 LSB INL B-grade), low power consumption (up to 36 mW active / 10 µA shutdown), and on-chip calibration logic, making it suited to industrial process control, data acquisition, and instrumentation. An SAR (successive-approximation register) ADC is a type of analog-to-digital converter that uses a binary-search algorithm through an internal DAC and comparator to convert an input voltage into a digital code in N clock cycles for N bits of resolution. SAR ADCs sit in the signal chain between analog signal conditioning (amplifiers, filters, muxes) and the digital controller or processor; they offer an attractive balance of speed, resolution, and latency for multiplexed or single-channel acquisition. Key features include: 85ksps throughput, ±0.5 LSB integral non-linearity (B-grade), single +5V analog supply, unipolar/bipolar input ranges (0V to VREF or ±VREF), and a synchronous serial (SPI/QSPI/MICROWIRE-compatible) digital interface. The on-chip calibration cycle corrects linearity and offset errors on power-up or on command, allowing the device to maintain full ±1 LSB TUE0150 total unadjusted error over temperature. Internally, the MAX195 combines a capacitive-charge redistribution DAC, a precision comparator, a SAR register, and a calibration controller with non-volatile trim registers. The architecture achieves true 16-bit performance with no missing codes and a 90 dB SINAD at 1 kHz input. The shutdown mode reduces supply current to a typical 10 µA, supporting portable battery-operated instruments. Typical applications include industrial process control loop digitization, precision weigh scales, portable data loggers, isolated 4-20 mA sensor front-ends, and medical instrumentation signal acquisition. The wide SOIC package also supports hand-soldered prototypes and high-reliability through-assembly manufacturing lines. When designing with the MAX195, decouple AVDD and DVDD with 10 µF + 0.1 µF local ceramics, place the reference bypass within 5 mm of REF, and observe the four-clock conversion sequence when sequencing multiple channels through an external mux. The shutdown pin enables duty-cycled acquisition with sub-millisecond wake-up. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, drawing on the manufacturer datasheet (MAX195 datasheet, Rev. 1) and Octopart distributor data.

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MAX195BCWE+TG035

MAX195BCWE+TG035 - 16-Bit 85ksps SAR ADC | Analog Devices

The Analog Devices MAX195BCWE+TG035 is a 16-bit, 85 ksps successive-approximation analog-to-digital converter (ADC) featuring internal calibration, low power consumption, and a 10 µA shutdown mode. Housed in a 16-pin wide-body SOIC (WSOIC) package, the device integrates successive-approximation architecture with a serial digital interface, an internal 4.096 V reference option, and a high-speed track/hold front end. The +TG035 suffix indicates a tape-and-reel packaging variant delivered on a 7-inch reel conforming to standard EIA-481 dimensions. An SAR (Successive Approximation Register) ADC is a type of analog-to-digital converter that uses a binary-search algorithm through an internal DAC to determine each code bit, achieving high accuracy and low latency without the pipeline delay of higher-speed flash or pipeline architectures. SAR ADCs occupy a middle ground between slow integrating converters (such as dual-slope) and very fast flash converters, making them the industry standard for 12- to 18-bit precision instrumentation, data acquisition, and process-control front ends. The MAX195BCWE+TG035 supports bipolar (±VREF) and unipolar (0 to VREF) input ranges selected per pin, accepts an external reference up to +5 V, and provides separate analog and digital supplies to minimize digital-noise coupling into the analog path. It achieves ±1 LSB integral non-linearity and ±1 LSB differential non-linearity, 90 dB SINAD and 87 dB THD, with a tri-state serial data output compatible with SPI/QSPI/MICROWIRE. Power-down current drops to 10 µA typical for battery-powered instrumentation. The internal calibration corrects linearity and offset errors on demand, eliminating the need for external trimming potentiometers and supporting tighter board layouts. The device accepts input bandwidths up to 4.5 MHz through its track/hold amplifier, enabling accurate sampling of audio-bandwidth signals well beyond the Nyquist limit. Typical applications include high-accuracy data-acquisition systems, instrumentation front ends, process control and industrial automation, weigh scales and panel meters, precision sensor signal conditioning, audio digitization, and medical instrumentation. Its 16-bit resolution makes it suitable for replacing older 14-bit and 12-bit SAR converters where headroom in dynamic range is required. When laying out the board, keep the AGND and DGND returns short and join them at a single point near the IC, route the analog input traces over a continuous ground plane, and place 10 µF + 0.1 µF decoupling on both AVDD and DVDD pins within 5 mm of the package body to preserve the converter's 90 dB SINAD performance. The conversion start (CONV) and serial clock (SCLK) lines should be guarded against adjacent switching traces to avoid deterministic digital coupling. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on any single distributor listing, giving procurement and design engineers a one-stop reference for the MAX195BCWE+TG035.

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MAX195BEWE

MAX195BEWE - 16-Bit 85ksps SAR ADC | Maxim Integrated

The Maxim Integrated MAX195BEWE is a 16-bit, 85 ksps successive-approximation register (SAR) analog-to-digital converter (ADC) housed in a 16-pin WSOIC (wide SOIC) surface-mount package. It combines high conversion speed, ±1 LSB linearity (B-grade), low power dissipation, and a 10 µA shutdown mode that suits battery-powered and portable instrumentation. The device accepts an external reference up to +5 V and offers pin-selectable unipolar (0 V to VREF) or bipolar (-VREF to VREF) input ranges, enabling flexible signal conditioning for both single-ended and true-differential sensor outputs. An SAR ADC is a precision data converter that performs a binary search against an internal capacitive DAC, one bit per clock cycle, to settle a sampled analog input to within half an LSB of the reference. The MAX195 architecture places this conversion loop behind a high-impedance input track/hold and an auto-calibration engine that nulls offset and linearity errors on power-up, eliminating the factory trim or external adjustment steps required by older successive-approximation parts. SAR ADCs such as the MAX195 are widely used in industrial process control, weigh scales, data-acquisition front ends, and precision instrumentation because they offer deterministic latency, intrinsic anti-alias behavior, and no pipeline delay compared with delta-sigma ADCs. Key features include a serial data interface (compatible with SPI/QSPI/MICROWIRE), separate AV DD and DV DD supplies that minimize digital-noise coupling into the analog path, and an integrated calibration engine that holds full 16-bit performance across the -40 °C to +85 °C industrial temperature range. According to the Maxim datasheet, the MAX195 achieves 85 ksps throughput while drawing only 36 mW (typical, ±5 V supplies), with shutdown reducing supply current to 10 µA. Internal calibration corrects linearity and offset on every power-up, so no external trim components are required. Typical applications include precision weigh scales, multi-channel data-acquisition systems, portable medical instruments, industrial process-control loops, and battery-powered sensor signal chains. The pin-selectable input range and small WSOIC-16 footprint simplify PCB layout in space-constrained designs. This page synthesizes distributor stock, drop-in alternatives, and design notes that complement the manufacturer datasheet without repeating it verbatim.

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MAX195BMDE

MAX195BMDE - 16-Bit 85ksps SAR ADC | Analog Devices (Maxim)

The Analog Devices (formerly Maxim Integrated) MAX195BMDE is a 16-bit, 85 ksps successive-approximation analog-to-digital converter (ADC) that combines high accuracy, low power consumption, and a 10 µA shutdown mode, housed in a 16-pin ceramic DIP (JEDEC MS-160C) package. The military temperature grade (-55 °C to +125 °C) suffix 'BMDE' designates the through-hole DIP variant qualified for harsh-environment systems. A successive-approximation ADC (SAR ADC) is a type of data converter that resolves a single analog sample per conversion cycle by performing a binary search against an internal precision DAC and comparator. SAR ADCs sit in the broader data-converter hierarchy alongside delta-sigma and pipeline ADCs, and are favored when designers need deterministic latency, no pipeline delay, and high DC accuracy at sample rates up to a few hundred ksps - making them the workhorse for industrial instrumentation, multichannel data-acquisition (DAQ) boards, and precision sensor front-ends. Key features of the MAX195BMDE include true 16-bit resolution with no missing codes, an integral nonlinearity (INL) of ±2 LSB max, 85 ksps throughput, three user-programmable input ranges (±5 V, 0 to 5 V, 0 to 10 V), a 10 µA shutdown mode for battery-powered applications, and an internal 4.096V reference. The device communicates through a high-speed parallel interface and supports both unipolar and bipolar true-differential analog inputs, eliminating the need for external signal-conditioning circuitry in many designs. The MAX195BMDE uses a charge-redistribution DAC array with a low-drift buried-zener reference, achieving 15-bit effective throughput at the full 85 ksps rate. The internal clock and control logic remove the requirement for an external state machine, and the parallel output bus allows direct connection to microprocessors, DSPs, or FPGAs. The combination of single +5 V analog supply operation and a software-controlled shutdown pin enables power budgets below 1 mW in duty-cycled remote-sensing applications. Typical applications include industrial process control and data acquisition, weigh-in digital medical, weigh-scale precision measurement, and portable battery-powered instrumentation. The wide ±5 V or 0-10 V true-differential inputs allow direct connection to bridge sensors, RTD signal chains, and 4-20 mA loop receivers. When designing with this device, ensure the input common-mode voltage stays within the supply rails and that bypass capacitors (one 10 µF tantalum plus one 0.1 µF ceramic) are placed within 5 mm of the supply pins. The ceramic-DIP package requires through-hole PCB assembly; verify a true-differential input signal path before omitting the input instrumentation amplifier. This page synthesizes distributor pricing, drop-in alternative cross-references, military-grade selection guidance, and practical design notes not collected in the manufacturer datasheet.

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MAX196ACAI

MAX196ACAI - 12-Bit 6Ch DAS, ±10V, 100kSPS, 28-SSOP | Maxim Integrated

The Maxim Integrated MAX196ACAI is a 12-bit, 6-channel, multi-range data-acquisition system (DAS) with 12-bit parallel bus interface, sampling at up to 100 kSPS and housed in a 28-pin SSOP (5.3 mm body width) package. It operates from a single +5 V analog supply and integrates a fault-protected analog input multiplexer, track/hold, successive-approximation ADC core, internal 4.096 V reference (or external reference option), and a microprocessor-compatible 12-bit parallel interface. A data acquisition system (DAS) is an integrated analog-front-end subsystem that combines input multiplexing, signal conditioning, sampling, and digital conversion into a single IC. It sits between the analog sensor world (transducers, ±10 V industrial signals, 4-20 mA loops) and a microprocessor or DSP, replacing the discrete chain of analog mux + op-amp driver + SHA + ADC + reference. The MAX196 belongs to the broader category of analog-to-digital converters (ADCs) and more specifically to multi-channel DAS ICs optimized for industrial-control front ends. Key features include 12-bit resolution with ±1/2 LSB linearity, software-programmable input ranges per channel (0 to +5 V, 0 to +10 V, ±5 V, ±10 V on MAX196), ±16.5 V fault-protected analog inputs that survive transients beyond the supply rails, an internal 4.096 V reference, and software-configurable acquisition/track mode for low-distortion sampling. The 100 kSPS throughput supports process-control loop rates, while the parallel bus interface eliminates the bit-banging overhead of serial ADCs in legacy 8/16-bit microcontroller designs. Architecturally, the part uses a charge-redistribution successive-approximation ADC with a laser-trimmed DAC array, delivering 73 dB SINAD and 83 dB spurious-free dynamic range at the Nyquist input. The on-chip reference and input-protection FETs are designed for industrial environments where common-mode voltages and ESD events routinely exceed standard ADC input tolerances. Typical applications include industrial process-control front ends (PLC analog input modules), multi-channel data loggers, instrumentation front panels, and multi-sensor embedded systems. Engineers reach for the MAX196 when they need true bipolar ±10 V industrial ranges without external resistor dividers, plus fault protection that lets the IC survive wiring faults on factory floors. When designing with this part, observe the analog supply decoupling rules (10 µF tantalum + 0.1 µF ceramic close to AV+ pin) and place a 0.1 µF bypass on the +5 V logic supply. The internal reference can be overdriven by an external ADR0x reference for higher absolute accuracy in calibrated instrumentation. This page synthesizes distributor pricing, SSOP drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including cross-comparison against MAX196AEAI+ (extended-temperature grade), MAX196ACWI+ (SOIC-28 wide), and pin-compatible multi-channel DAS parts from Analog Devices.

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MAX196AEAI

MAX196AEAI - 12-Bit 100kSPS 6-Ch ±10V DAS ADC, SSOP-28 | Maxim

The Maxim Integrated (Analog Devices) MAX196AEAI is a multi-range, 12-bit data-acquisition system (DAS) that integrates a 6-channel analog input multiplexer, track-and-hold amplifier, successive-approximation register (SAR) ADC, and on-chip reference. It operates from a single +5V supply while accepting analog inputs as large as ±10V, samples at up to 100 kSPS, and presents data through a parallel interface. It is offered in a 28-pin SSOP package (EAI suffix) for surface-mount industrial designs. A Data Acquisition System (DAS) such as the MAX196 is a category of mixed-signal IC that combines the front-end signal conditioning (input mux, protection, T/H), the analog-to-digital conversion stage, and a digital host interface into a single device. Within the broader hierarchy of ICs, the MAX196 sits as: ADC -> Data Acquisition System -> Data Converter -> Mixed-Signal IC -> Semiconductor. Its primary value is replacing multiple discrete components (input protection resistors, mux, op-amp T/H, separate SAR, reference) with one chip, reducing BOM cost, board area, and design complexity. Key features include software-selectable input ranges per channel (±10V, ±5V, 0 to 10V, 0 to 5V for MAX196; ±4V, 0 to 4V for MAX198), internal 4.096V reference (with option to overdrive), ±1/2 LSB linearity (A grade), ±16.5V input protection (continuous), 6 analog input channels, three-state bi-directional data port compatible with 8/16-bit buses, and TTL/CMOS-compatible I/O. Internal sequential channel scanning plus user-programmable channel sequencing support per-channel setup. Architecturally, the device uses a capacitive-charge-distribution SAR converter with auto-calibration logic that nulls gain and offset errors at power-up. The on-chip reference is a buried Zener type with 50 ppm/°C typical drift. Analog inputs are routed through a fault-protected CMOS mux that tolerates overvoltages well beyond the supply rails without latch-up. Typical applications include industrial process control and PLC analog front ends, multi-channel data loggers, portable instrumentation, medical patient monitoring equipment, and rack-mounted test and measurement systems where ±10V industrial signal ranges must be digitized directly from a +5V-only supply. A key design tip: route AGND and DGND as a star-ground topology and decouple the +5V AVCC pin with both a 0.1 µF ceramic and a 10 µF tantalum as close to the IC as possible. For ±10V input ranges, use the internal 4.096V reference mode and rely on the on-chip dividers; for high-accuracy systems, drive REFADJ with a low-noise external op-amp or use the external-reference mode. This page synthesizes distributor pricing, drop-in alternatives drawn from Maxim's same product family (A/B/C grades, plus the +5V-only companion MAX198), and practical PCB layout guidance not consolidated in the original datasheet.

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MAX196AENI

MAX196AENI - 12-Bit 6-Ch 100ksps Precision ADC | Maxim Integrated

The Maxim Integrated (now Analog Devices) MAX196AENI is a multi-range, single +5V, 12-bit data-acquisition system (DAS) with 12-bit bus interface, sampling at 100 ksps across 6 analog input channels and housed in a 28-pin PDIP (N) through-hole package. Its core headlines are a 6-channel single-ended or 6-channel pseudo-differential input mux, software-selectable input ranges (0 to +5V, 0 to +10V, ±5V, ±10V, 0 to +4.18V) and a successive-approximation ADC with 100 ksps throughput. A Data Acquisition System (DAS) is an integrated subsystem that combines analog input multiplexing, sample-and-hold, ADC conversion, and a digital interface in a single IC, eliminating the need for the designer to pair a discrete mux, S/H, and ADC. The MAX196 belongs to the precision SAR-ADC > multi-channel DAS > data-converter > signal-chain IC product hierarchy. The DAS sits between sensors/transducers and the host microcontroller or DSP, providing a clean digital representation of multiple analog signals with high noise immunity and bus-friendly I/O. Key differentiating features include 6 input channels in a single device (vs. typical 1 or 2 for standalone ADCs), software-programmable input ranges via internal PGA/scaling, a built-in track-and-hold and 4.096V reference, a 100 ksps conversion rate at ±1/2 LSB linearity, and a parallel 12-bit/8-bit bus interface that drops directly onto most 80xx-family microprocessors. The device operates from a single +5V supply and consumes 60 mW typical during conversion. TTL/CMOS-compatible I/O simplifies interface to modern MCUs without level shifters. Typical applications include process control, industrial data acquisition, instrumentation, automated test equipment (ATE), and embedded sensor monitoring. The parallel bus interface makes it particularly well suited to legacy 80xx designs and DSPs needing fast multi-channel capture, while the wide input-range flexibility lets a single board accept 4-20mA, 0-10V, and bipolar transducer outputs without external signal conditioning. A design consideration: the parallel interface consumes many MCU pins, so consider an SPI-based successor such as MAX197 or MAX1300-series parts for new designs with pin constraints. Decouple the supply with a 0.1uF ceramic plus a 10uF tantalum adjacent to the +5V and DGND pins.

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MAX197ACAI+T

MAX197ACAI+T - 12-Bit 100kSPS DAS, 28-SSOP | Analog Devices

The Analog Devices MAX197ACAI+T is a 12-bit, 100kSPS multi-range Data Acquisition System (DAS) requiring only a single +5V supply, packaged in a 28-pin SSOP (5.30mm width). It integrates a 12-bit successive-approximation ADC with an 8-channel analog input multiplexer, sample-and-hold, and a microprocessor-compatible parallel interface in one IC. A DAS (Data Acquisition System) is a mixed-signal integrated circuit that combines analog front-end multiplexing, sample-and-hold buffering, an analog-to-digital converter, and a digital interface into a single device. Within the broader product hierarchy, the MAX197 belongs to the SAR ADC (Successive Approximation Register Analog-to-Digital Converter) family, itself a sub-category of data converters (ADC) which sit inside the signal-chain / mixed-signal power management hierarchy. Its primary engineering value is replacing multi-chip discrete ADC designs with a single calibrated IC that handles analog signal conditioning, range scaling, and digital readout. Key features include software-selectable input ranges of ±10V, ±5V, 0 to +10V, and 0 to +5V, all derived from the internal 4.096V reference and on-chip range-switching network; 1/2 LSB linearity (A-grade); an 8-channel analog multiplexer with two software-selectable acquisition modes (8 single-ended or 4 differential); an 8+4 parallel bus interface with three-state I/O; and TTL/CMOS-compatible digital I/O. Operating from a single +5V supply, the part accepts bipolar input signals that exceed the supply rails, which removes the need for external negative supplies or input level shifters. The MAX197 uses a capacitive-DAC SAR architecture with an inherent track-and-hold input stage, achieving 100kSPS throughput at 12 bits and ±1/2 LSB integral nonlinearity (A grade). An internal 4.096V bandgap reference and flexible input-range scaling allow direct connection to industrial ±10V or 0-10V transducer outputs without external op-amp signal conditioning. The 8+4 parallel interface mode is compatible with 8-bit microprocessors, while the chip's internal mode register lets the host software configure channels and ranges on a per-conversion basis. Typical applications include industrial process control data acquisition, multichannel sensor interfacing, factory automation I/O modules, test and measurement front-ends, and any embedded system that requires 12-bit resolution across multiple bipolar input ranges without a negative supply rail. Its combination of bipolar-input capability, internal reference, and parallel interface makes it well suited to legacy 8-bit bus designs being upgraded to higher-performance mixed-signal front ends. When designing with this device, observe the recommended decoupling and analog-input layout practices. Place a 0.1µF ceramic bypass capacitor close to the +5V pin and a 10µF tantalum reservoir on the supply rail; use ground-plane construction and keep analog input traces short and away from digital switching lines. Verify that software-controlled channel/range selection bits are written before initiating a conversion to avoid invalid data. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MAX197AENI

MAX197AENI - 12-Bit 100ksps 8-Ch DAS ADC | Maxim Integrated

The Maxim Integrated MAX197AENI is a multi-range, 12-bit data-acquisition system (DAS) requiring only a single +5V supply, yet accepting analog input signals that may span both above the power-supply rail and below ground. Packaged in a 28-pin PDIP through-hole package, the device integrates an 8-channel analog input multiplexer, sample-and-hold, and a successive-approximation ADC achieving 100 ksps throughput with ±0.5 LSB integral nonlinearity in the A-grade variant. The device operates from a single +5V supply while supporting bipolar input ranges of ±10V, ±5V, 0-10V, and 0-5V through software-configurable internal scaling resistors. A 12-bit analog-to-digital converter is a successive-approximation ADC that converts continuous analog signals into discrete 12-bit digital codes, balancing resolution against sampling speed for industrial, instrumentation, and process-control applications. As a member of the data-acquisition IC family, the MAX197 sits in the hierarchy of ADC -> data converter -> signal chain IC -> mixed-signal semiconductor. Its integrated front-end eliminates external signal-conditioning components, simplifying PCB design for multi-channel systems. Key features of the MAX197AENI include eight analog input channels with software-selectable input ranges, 100 ksps sampling rate, internal 4.096V reference (with optional external reference override), three-state data I/O port configurable for 8-bit buses, and TTL/CMOS-compatible digital I/O. The device also provides hardware- or software-triggered conversions, an end-of-conversion interrupt, and built-in overvoltage protection of ±25V on analog inputs without damage. Architecturally, the MAX197 employs a successive-approximation register (SAR) ADC core with an input multiplexer feeding a unity-gain sample/hold amplifier. The internal scaling resistors and reference buffer allow direct connection to high-voltage bipolar signals when operating from a single +5V rail. The internal reference may be bypassed in favor of an external ADRXXX-series reference for higher absolute accuracy. Typical applications include industrial process control, data loggers, robotics, pen tablet digitizers, and medical instrumentation. The wide input range capability (especially ±10V bipolar from a single +5V rail) makes it ideal for industrial sensors and PLC analog input modules. When designing with the MAX197, ensure that the analog input source impedance stays below the datasheet maximum (typically 1 kΩ for full accuracy) and that adequate decoupling (10 µF + 0.1 µF) is placed at AVDD and DVDD. The +5V single-supply operation significantly simplifies power tree design compared to bipolar-input ADCs requiring ±15V rails. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes beyond the manufacturer datasheet.

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MAX198ACNI

MAX198ACNI - 12-Bit 6-Ch 100ksps ADC | Maxim | Multi-Range

The Maxim Integrated MAX198ACNI is a 6-channel, multi-range, 12-bit data-acquisition system (DAS) with successive-approximation register (SAR) architecture, providing up to 100 ksps sampling rate on a single +5 V supply. Housed in a 28-pin PDIP (N) through-hole package, the device accepts analog inputs ranging up to ±4 V (MAX198) or ±10 V (MAX198 variant) with software-configurable input ranges of 0 to 10 V, 0 to 5 V, ±10 V, ±5 V, 0 to 4 V, and ±4 V, allowing a single IC to interface with multiple sensor signal levels without external scaling. An ADC (analog-to-digital converter) is a mixed-signal data converter that translates real-world analog voltages into a digital code for processing by microcontrollers, DSPs, or FPGAs. As a multi-range SAR ADC, the MAX198ACNI uses a charge-redistribution DAC and comparator to perform a 12-bit conversion in under 10 µs, balancing speed, accuracy, and simplicity. Its place in the broader taxonomy: ADC -> data converter -> mixed-signal IC -> power management / signal chain. The internal reference and rugged bipolar input structure simplify signal conditioning for industrial control loops. Key features include six analog input channels multiplexed to a single 12-bit ADC core, eight software-programmable input ranges, an internal 4.096 V reference, a three-state parallel digital interface compatible with 16-bit data buses, and TTL/CMOS-compatible logic levels. The 100 ksps throughput makes it suitable for closed-loop control and instrumentation sampling. Power dissipation is approximately 60 mW during continuous conversion and drops to under 1 mW in software-controlled power-down mode, which is valuable for battery-portable instrumentation. Typical applications include multi-channel industrial process-control data acquisition, programmable-logic controller (PLC) analog input modules, medical instrumentation signal conditioning, automated test equipment (ATE) front-ends, and embedded sensor-interface boards. The multi-range input allows direct connection to 4-20 mA current-loop receivers (with a sense resistor), thermocouple amplifiers, and strain-gauge bridges. When designing with the MAX198ACNI, bypass VDD and VSS pins with 0.1 µF and 10 µF capacitors placed within 5 mm of the device, route analog and digital grounds separately back to a star-point ground, and ensure the input signal does not exceed ±16 V absolute maximum to avoid input-protection diode conduction. The 'A' grade provides ±0.5 LSB INL and the 'C' suffix denotes the commercial 0 °C to +70 °C operating range. This page synthesizes real distributor stock, parametric drop-in alternatives, and PCB design guidance not found in the bare Maxim datasheet.

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MAX198ACWI

MAX198ACWI - 6-Channel 12-Bit DAS, 5V, 100kSPS | Maxim/ADI

The Analog Devices (formerly Maxim Integrated) MAX198ACWI is a 6-channel, multi-range, 12-bit Data Acquisition System (DAS) with a 12-bit parallel bus interface, packaged in a 28-pin wide SOIC. It performs successive-approximation analog-to-digital conversion at up to 100 ksps on six software-selectable analog input channels, and operates from a single +5 V supply, drawing 7.5 mA (typ) operating and 1 mA (typ) in power-down mode. A Data Acquisition System (DAS) such as this combines a multi-channel input multiplexer, a sample-and-hold amplifier, a SAR (Successive Approximation Register) ADC core, voltage reference support, and a digital bus interface into a single IC. The MAX198ACWI sits in the ADC IC family, beneath the broader category of data-conversion / data-acquisition semiconductors, and is used as the analog front-end in distributed control, instrumentation, and embedded systems where multiple analog signals must be digitized and delivered to a host CPU or DSP over a fast parallel port. Key features include software-configurable unipolar input ranges of 0 V to +VREF (where VREF is the internal 4.096 V bandgap or an external reference) and 0 V to +5 V, 6.0 us conversion time, an internal 4.096 V reference, and AC + DC (±1/2 LSB) linearity over the operating range. Software-configurable bipolar ranges (±VREF, ±5 V on the MAX196, ±10 V on the MAX197) are the user's choice. The three-state bidirectional data port is compatible with 16-bit data buses, and bus-release timing is matched to the read cycles of most 8051-family, 68HC11, and similar microprocessors. All digital I/O are TTL/CMOS compatible, simplifying level translation in mixed-voltage designs. Architecturally, the device uses a charge-redistribution SAR ADC with an input fault-protected multiplexer that tolerates ±16.5 V overvoltage on any analog input without damage. The internal reference can be overdriven externally for high-accuracy applications. MAX198ACWI is the commercial-temperature (0 °C to +70 °C) grade; MAX198AEWI extends the range to -40 °C to +85 °C. Typical applications include multi-channel data-acquisition front ends for industrial process control, PLC analog input modules, weigh scale and bridge-sensor digitizers, temperature-monitoring multiplexers (thermocouple/RTD via external signal conditioning), portable instrumentation, and battery-cell monitoring in UPS and renewable-energy systems. Embedded-system designers favor the part for its 6 multiplexed channels on one ADC, eliminating external analog switches and reducing both BOM and PCB area. When designing with the MAX198ACWI, ensure the analog inputs remain within ±16.5 V to avoid stressing the input-protection network, and bypass VDD with a 10 uF tantalum plus 0.1 uF ceramic combination placed within 1 cm of the supply pin to keep digital switching noise out of the SAR comparator. This page synthesizes distributor pricing, drop-in alternative parts from the same MAX196/MAX198 family, and practical PCB-layout guidance not found in the bare manufacturer datasheet.

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MAX198AEAI

MAX198AEAI - 12-Bit 6-Ch DAS w/ Fault Protection | Maxim Integrated

The Maxim Integrated MAX198AEAI is a 12-bit, 6-channel, multirange data acquisition system (DAS) with parallel interface and built-in fault protection, supplied in a 28-pin SSOP surface-mount package. The device integrates a 12-bit successive-approximation ADC core with 8 software-selectable analog input ranges (0 to +5 V, 0 to +10 V, ±5 V, ±10 V, 0 to +VREF, 0 to 2 x VREF, ±VREF, ±2 x VREF) and an internal 4.096 V bandgap reference, all from a single +5 V supply. The MAX198AEAI provides 100 kSPS throughput across six analog input channels multiplexed into a single ADC, with software-configurable unipolar/bipolar range selection per acquisition. A Data Acquisition System (DAS) is a mixed-signal integrated circuit that combines an analog multiplexer, sample-and-hold, ADC, voltage reference, and digital interface into a single package. DAS parts occupy the data-acquisition tier of the signal chain hierarchy: sensor/analog front-end -> multiplexer -> DAS/ADC -> processor. By integrating the analog signal path on-chip, MAX198-class parts replace multi-chip solutions containing a discrete MUX, op-amp buffer, reference, and stand-alone ADC, simplifying PCB layout and reducing system BOM cost while preserving noise performance. Key differentiating features include the 12-bit ±1/2 LSB linearity specification, ±16.5 V overvoltage fault protection on each analog input that survives transients without latching, a hardware/software shutdown mode that drops supply current below 100 µA, and an internal 4.096 V reference that can also be overdriven by an external source. The parallel 12-bit bus interface with standard CS/RD/WR controls simplifies connection to 8051-, 68HC11-, and DSP-family processors without external glue logic. Typical applications include industrial process-control front ends, data loggers, multichannel instrumentation, isolated sensor signal acquisition, panel meters, and multiloop PLC analog input modules. The combination of multirange inputs and fault tolerance also fits HVAC controllers and energy-management systems where sensor wiring may carry large transients. When designing with the MAX198AEAI, place the +5 V decoupling capacitors (10 µF tantalum + 0.1 µF ceramic) within 5 mm of the AV+ and DV+ pins, and route the analog ground plane beneath the part to avoid coupling digital switching noise into the ADC reference. The internal reference output (REF) requires a 4.7 µF bypass capacitor; using a smaller value will degrade linearity at full-scale. This page synthesizes distributor pricing, parametric substitutes, and PCB-level design notes not found in the standalone datasheet.

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MAX198AENI

MAX198AENI - 12-Bit 8-Ch 100ksps ±4.18V DAS | Maxim Integrated

The Maxim Integrated MAX198AENI is a 12-bit, 8-channel data acquisition system (DAS) with a 100 ksps successive-approximation ADC and a 12-bit parallel bus interface, housed in a 28-pin PDIP (300 mil, through-hole DIP) package. It integrates an analog input multiplexer, precision 4.18 V internal reference, track/hold amplifier, and clock generator on a single IC, accepting bipolar input ranges of ±4.18 V with overvoltage protection up to ±16.5 V. The internal reference is factory-trimmed to 4.18 V ±1% with a typical temperature drift of 35 ppm/°C. A Data Acquisition System (DAS) is a mixed-signal integrated circuit that combines an analog-to-digital converter (ADC), input multiplexer, sample-and-hold, reference, and bus interface in one package. The DAS hierarchy goes: DAS -> ADC IC -> data converter -> mixed-signal IC -> integrated circuit. By integrating eight analog channels and a high-accuracy reference onto one die, the MAX198 reduces board area, BOM cost, and design complexity compared to discrete ADC-plus-frontend designs. It belongs to Maxim's MAX196/MAX198 family, a long-running 12-bit DAS series widely deployed in industrial, instrumentation, and process-control equipment. Key features include 8 single-ended analog input channels, 12-bit resolution with ±0.5 LSB (max) relative accuracy, ±4.18 V bipolar input range, and 100 ksps sampling rate. The MAX198AENI supports 2.5 V operation from a single +5 V analog supply and a +5 V digital supply, with low analog supply current of 6 mA at 100 ksps. Its hardware-mode operation simplifies firmware: conversions start on RD-bar falling edge, and the device bus-releases the data bus when RD-bar returns high, enabling straightforward interface to 80C31, 68HC11, and similar 8-bit microcontrollers. The architecture uses a charge-redistribution successive-approximation ADC with a laser-trimmed 12-bit DAC. The internal reference settles within 5 ms after power-up, and the analog inputs survive ±16.5 V overvoltage without damage. The MAX198 differs from the MAX196 by offering a 12-bit (rather than 14-bit) data bus and ±4.18 V input range rather than the 0 to 5 V / ±5 V ranges of related parts. Typical applications include industrial process control, multi-channel data loggers, battery monitoring systems, and PC-based instrumentation front-ends. With 8 channels and bipolar inputs, the device addresses low-level signal-conditioning needs in factory automation and instrumentation where on-board signal sources are ±4 V class. This page synthesizes distributor stock, drop-in alternatives (MAX198BCNI+, MAX198BENI+) and practical design notes not found in the Maxim datasheet.

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MAX198BCAI

MAX198BCAI - 12-Bit 6-Ch 100ksps DAS ADC | Maxim Integrated

The Maxim Integrated MAX198BCAI (now supplied by Analog Devices / Maxim Integrated) is a 6-channel, multi-range, single +5V, 12-bit Data Acquisition System (DAS) ADC with 12-bit parallel bus interface and fault-protected analog inputs, housed in a 28-pin SSOP package. It samples at up to 100 ksps per channel with 1/2-LSB linearity (B-grade), supports software-selectable unipolar input ranges (0V to +VREF, 0V to +5V), and accepts either the internal 4.096V reference or an external reference. A multi-range, multi-channel DAS (Data Acquisition System) is an integrated analog front-end plus ADC subsystem that combines an input multiplexer, channel-level signal conditioning, a sample-and-hold, a reference, and a successive-approximation ADC into a single IC. In the broader taxonomy it sits under ADC -> ADC/DAC -> data converter -> signal-chain IC -> semiconductor. The MAX198 sits inside this hierarchy as a complete micro-controller-attached data acquisition block rather than a bare SAR ADC, eliminating the external MUX, reference, and T/H the engineer would otherwise need to glue together. Key features of the MAX198BCAI include 12-bit resolution with 1/2 LSB integral non-linearity, single +5V supply operation, fault-tolerant inputs that survive up to +/- 16.5V without damage, an internal 4.096V reference, six software-configurable analog input channels, and a high-speed 12-bit parallel microprocessor interface. The fault-protected input multiplexer allows the analog inputs to be hot-plugged or driven beyond the rails without latching or damaging the converter, which is critical in industrial and process-control front-ends. Architecturally the part is a successive-approximation register (SAR) ADC fronted by a fault-protected CMOS MUX and a differential sample-and-hold, with the reference shared between the MUX scale network and the SAR DAC. This topology lets the user switch per-channel gain/range under software control while still achieving 100 ksps throughput on any channel. The parallel interface and fast track/hold make the part suitable for direct connection to 8-bit and 16-bit microprocessors and DSPs without wait-state logic. Typical applications include industrial process control and instrumentation, multi-channel data loggers, PLC analog input modules, factory automation and SCADA remote terminal units (RTUs), and battery-powered portable measurement instruments. Designers also use the MAX198 in medical patient-monitoring front ends and as a single-chip replacement for discrete MUX + ADC + reference solutions where board area is constrained. When designing with the MAX198BCAI, place a 10 uF (minimum) and a 0.1 uF ceramic bypass capacitor directly at the AVDD and DVDD pins to keep digital switching noise out of the conversion result. The unused analog channels should be tied to AGND (or any input within the allowed range) rather than left floating, as floating inputs couple charge-injection noise from the MUX into adjacent active channels and degrade INL.

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MAX198BENI

MAX198BENI - 12-Bit 100kSPS 6-Ch DAS 28-PDIP | Maxim Integrated

The Maxim Integrated (Analog Devices) MAX198BENI is a 12-bit, 6-channel, multi-range data acquisition system (DAS) with fault-protected inputs and a parallel microprocessor interface, housed in a 28-pin PDIP through-hole package. Operating from a single +5V supply, it delivers 100 ksps throughput, 1/2-LSB linearity, and software-selectable input ranges of 0V to +VREF or 0V to +5V with an internal 4.096V or external reference. The part combines an input multiplexer, track/hold, 12-bit ADC, and channel-selection logic on-chip. A data acquisition system (DAS) is an integrated mixed-signal IC that aggregates analog multiplexing, sample-and-hold, and ADC conversion into a single chip, sitting between analog sensors and a digital processor within the broader hierarchy of data converters -> ADC/DAC -> signal chain -> mixed-signal ICs -> semiconductors. The MAX198 family was designed for industrial process-control and instrumentation systems requiring robust analog front ends. Key features of the MAX198BENI include fault-protected input multiplexers that withstand ±16V overvoltages without damage, software-configurable unipolar input ranges (0V to +VREF or 0V to +5V), an on-chip 4.096V reference (5 ppm/°C typical), and a 12-bit parallel interface for fast data throughput. The -B grade provides ±1/2-LSB INL and DNL linearity, while the 100 ksps sampling rate supports most industrial control loops. The device uses a successive-approximation register (SAR) architecture with an input track-and-hold, allowing accurate acquisition of fast transient signals up to the Nyquist limit of the 100 ksps sample rate. The fault-protected input multiplexer is rated to ±16V, eliminating external protection circuitry in many industrial applications. Typical applications include industrial process control, multi-channel data logging, PLC analog input modules, and instrumentation front-ends. The wide input range and fault protection make it well-suited for factory-floor environments where sensor signals vary widely and wiring transients are common. When designing with this part, ensure the analog input signal source impedance stays below the datasheet-specified limit (typically 1 kΩ at 100 ksps) to avoid conversion errors, and place the +5V decoupling capacitor within 10mm of the VDD pin to suppress digital switching noise from coupling into the analog path. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers a single consolidated source for sourcing decisions.

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MAX198BEWI

MAX198BEWI - 12-Bit 100kSPS Multirange DAS | Maxim Integrated

The Maxim Integrated MAX198BEWI is a multirange, single +5V, 12-bit data-acquisition system (DAS) with 6 analog input channels and an 8-channel successive-approximation ADC architecture. The part is specified for industrial temperature grades and is housed in a 28-pin wide SOIC (SO) package, supporting bipolar input ranges up to ±4V without external negative supplies. According to the manufacturer datasheet, the MAX198BEWI converts up to 100k samples per second, with input ranges of 0 to 5V, 0 to 10V, ±5V, and ±4V (additional ±10V and ±20V ranges are supported via external resistor dividers), and includes fault-protected analog inputs that survive ±25V without damage. A Data Acquisition System (DAS) is an integrated mixed-signal IC that combines a multi-channel analog input multiplexer, sample-and-hold amplifier, analog-to-digital converter, voltage reference, digital control logic, and parallel bus interface in a single package. DAS devices occupy a hierarchy of mixed-signal IC -> data acquisition system -> ADC with MUX and reference -> 12-bit successive-approximation DAS. They differ from standalone ADCs by including analog signal conditioning and a parallel CPU-compatible digital interface, eliminating the need for external precision references, input protection circuits, and channel-switching glue logic. The MAX198BEWI's key differentiating features include: software-configurable analog input ranges (four bipolar/unipolar ranges plus programmable gain amplifier), ±25V fault-tolerant analog inputs, integrated 4.096V bandgap reference, 100kHz throughput at 12-bit resolution, hardware/software conversion start modes, and TTL/CMOS-compatible parallel interface supporting 8-bit and 16-bit bus configurations. These features enable robust multi-channel measurement from a single +5V supply, eliminating the negative supply rail required by many bipolar-input ADCs. Architecturally, the MAX198 uses a successive-approximation register (SAR) ADC core with an input-divided charge-redistribution DAC and an internal input sample-and-hold. The 6-channel analog input MUX supports both single-ended and differential modes. The integrated PGA provides software-selectable input ranges, and the input protection network clamps transients up to ±25V. An internal 4.096V reference may be bypassed for an external reference when system accuracy demands it. Typical applications include industrial process control and instrumentation, data loggers, panel meters, multi-channel data acquisition boards, medical patient monitoring, and factory automation PLC analog input modules. The +5V-only supply requirement and built-in fault protection simplify the analog front-end in these systems. When designing with the MAX198BEWI, ensure the analog input protection diodes are accounted for; do not apply voltages exceeding ±25V even though the device tolerates them, because sustained fault conditions dissipate power in the protection network. Use an external op-amp buffer when source impedance exceeds the specified input bandwidth, and decouple the +5V supply with both 10uF and 0.1uF capacitors placed close to the AVDD pin. This page synthesizes distributor pricing, drop-in alternative coverage across Maxim/Analog Devices family members, and practical design notes not found in the manufacturer datasheet.

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MAX199ACAI

MAX199ACAI - 12-Bit 8-CH Multi-Range DAS, 28-SSOP | Maxim

The Analog Devices / Maxim Integrated MAX199ACAI is a 12-bit, 8-channel, multi-range data-acquisition system (DAS) with 8+4 parallel bus interface, fault-protected inputs, and a 100 ksps sampling rate, housed in a 28-pin SSOP package. The MAX199ACAI accepts bipolar input ranges of +/-4V and +/-2V as well as unipolar ranges of 0V to +4V and 0V to +2V, requiring only a single +5V supply. The 0 to +5V analog input range and 0 to +10V range are not supported on this variant; those ranges are provided by the higher-input MAX197. A data-acquisition system (DAS) is an integrated circuit that combines an analog multiplexer, sample-and-hold amplifier, and analog-to-digital converter into a single chip, allowing one ADC to sequentially digitize multiple analog channels. DAS devices sit within the broader signal-chain hierarchy: sensor -> multiplexer -> sample-and-hold -> ADC -> digital interface -> microcontroller. By integrating these functions on a single die, DAS ICs save cost, board area, and design time compared with discrete implementations, while ensuring that channel-to-channel gain and offset errors track each other across temperature. Key features of the MAX199ACAI include +/-4V, +/-2V, +4V, and +2V software-selectable input ranges, an internal 4.096V reference, ±16.5V fault-protected analog inputs, a track/hold with 100 ksps throughput, an 8+4 parallel microprocessor interface, and single +5V operation. Internal channel-scan circuitry supports sequential or single-channel conversions. Architecturally, the device uses a successive-approximation ADC core with an input fault-protection network, an input track/hold amplifier, and a low-drift buried-zener reference (or external REF option). The input protection clamps transients up to ±16.5V without damaging the mux, which is critical for industrial control inputs where transients are common. Typical applications include multi-channel data-acquisition front ends, industrial process controls, robotics, and pen-tablet digitizers. The bipolar/unipolar range flexibility allows one PCB to serve 4V, 12V, and industrial-sensor signal levels. When designing with this part, place a 0.1µF ceramic bypass close to VDD and a 4.7µF tantalum bulk cap on the analog supply. The internal reference requires a 4.7µF bypass; using a smaller value increases noise and worsens INL. The MAX199ACAI is the SSOP/industrial-temperature version; the MAX160B/WI variants are available in 28-SOIC, and the MAX199BCAI offers 12-bit ±1 LSB linearity.

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