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MAX11329ATJ+T - 3Msps 10-Bit 16-CH SAR ADC | Analog Devices
MAX11329ATJ+T

MAX11329ATJ+T - 3Msps 10-Bit 16-CH SAR ADC | Analog Devices

The Analog Devices (formerly Maxim Integrated) MAX11329ATJ+T is a 10-bit, 3Msps, low-power, serial-output successive approximation register (SAR) analog-to-digital converter with 8/15/16 input channels and post-multiplexer external signal conditioning access, housed in a 32-pin TQFN (5mm x 5mm) package. An SAR ADC is a successive approximation register analog-to-digital converter, a type of ADC that uses a binary search algorithm through an internal capacitive DAC to digitize an analog input one bit at a time per conversion clock. SAR ADCs sit within the broader hierarchy of analog-to-digital converters -> data converters -> mixed-signal ICs -> power management and signal-chain semiconductors. They are valued for deterministic latency, low power, and excellent DC accuracy at moderate speeds compared to pipeline or delta-sigma architectures. Key features include a 3Msps sampling rate, 10-bit resolution, an integrated 16-channel analog input multiplexer, and a unique post-mux access node that exposes the MUX output before the ADC input so designers can insert a custom op-amp driver or anti-alias filter between mux and ADC. Additional capabilities include an external reference input, SPI/QSPI/MICROWIRE-compatible serial interface, low power consumption, and 500kHz full-linear-bandwidth. The wide analog input range and integrated channel scan mode simplify multi-sensor designs. Typical applications include multichannel data acquisition systems, industrial process control, patient monitoring and medical instrumentation, portable battery-powered measurement equipment, and optical module monitoring. The 32-pin TQFN package combines compact footprint with adequate thermal performance for handheld and industrial designs operating from -40C to +85C. Designers should note that the MAX11329-ATJ+T operates from a single 2.35V to 3.0V analog supply and a 1.7V to 3.6V digital supply; a clean low-noise LDO such as the ADP150 is recommended for the analog rail. The post-mux access pins (MUXOUT, ADCIN) are exposed to allow an external op-amp buffer; if unused, they must be tied together with a short PCB trace. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical layout/design notes not found in the manufacturer datasheet alone.

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MAX11332ATJ+T - 3Msps 12-Bit 16-Ch SAR ADC | Analog Devices
MAX11332ATJ+T

MAX11332ATJ+T - 3Msps 12-Bit 16-Ch SAR ADC | Analog Devices

The Analog Devices MAX11332ATJ+T is a 3 Msps, 12-bit, 16-channel successive approximation register (SAR) analog-to-digital converter (ADC) with external reference and 500 kHz full-linear-bandwidth, housed in a 32-pin TQFN-EP (5x5 mm) package. It accepts 8 or 16 single-ended analog inputs through an integrated analog multiplexer and provides a serial SPI/QSPI/MICROWIRE-compatible digital interface for compact data acquisition designs. A SAR ADC is a type of analog-to-digital converter that performs conversion by binary-searching against a precision DAC and a comparator in a single clock cycle per bit. Within the broader data converter hierarchy, SAR ADCs sit between flash converters (fastest, lowest resolution) and delta-sigma ADCs (slowest, highest resolution). The MAX11332's 12-bit resolution with 3 Msps throughput makes it ideal for multiplexed multi-channel systems where fast acquisition and deterministic latency matter more than absolute noise floor. The post-mux signal conditioning access allows external amplifiers, filters, or sensor biasing between the analog input pins and the internal sample-and-hold. Key features include 3 Msps maximum sampling rate, 12-bit no-missing-codes resolution, 16 analog input channels (selectable 8 or 16 via configuration), an external reference voltage input for measurement flexibility, low power consumption (approximately 5.5 mW at 3 Msps), 500 kHz full-linear bandwidth, and a high-speed SPI-compatible serial interface operating up to 50 MHz. The TQFN-EP package provides a thermal pad that reduces junction-to-ambient thermal resistance to approximately 32 C/W. Architecture-wise, the device integrates an input multiplexer, sample-and-hold amplifier, SAR conversion core, reference buffer, and serial output logic on a single die. The external reference allows the user to optimize the ADC's input range to match sensor signals (e.g., 2.5V, 4.096V), which improves quantization noise utilization compared to a fixed 5V input range. Typical applications include multi-channel data acquisition systems, industrial process control and sensor monitoring, patient monitoring and medical instrumentation, programmable logic controllers (PLCs), and battery-powered portable instrumentation. The combination of 16 channels in a compact TQFN footprint replaces up to four dual-channel ADCs, saving board space. When designing with the MAX11332ATJ+T, ensure the external reference source is low-noise and adequately bypassed; a noisy reference directly multiplies into ADC output. Place a 0.1 uF ceramic decoupling capacitor close to each supply pin, and follow the PCB layout guidelines in the datasheet to preserve full 500 kHz input bandwidth. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing engineering decision support beyond what Analog Devices' product page offers.

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MAX11336ATJ+T - 12-Bit 8-Ch SAR ADC 500ksps | Maxim Integrated
MAX11336ATJ+T

MAX11336ATJ+T - 12-Bit 8-Ch SAR ADC 500ksps | Maxim Integrated

The Analog Devices (formerly Maxim Integrated) MAX11336ATJ+T is a 12-bit, 500 ksps, low-power, successive-approximation-register (SAR) analog-to-digital converter with 4-/8-/16-channel input capability and post-mux analog signal-conditioning access, housed in a 32-pin TQFN (5x5 mm) package. According to the manufacturer datasheet, the device offers a single analog supply range of 3.0 V to 3.6 V, an external reference, an SPI/QSPI/MICROWIRE-compatible serial interface, and integrated track-and-hold with ±1 LSB INL (typ) and ±1 LSB DNL (typ). The +T suffix indicates Tape & Reel packaging, and the device operates over the -40 °C to +125 °C automotive temperature range. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm and an internal capacitive network to convert an analog input into a digital code, one bit per clock cycle. SAR ADCs occupy the middle of the converter hierarchy between flash ADCs (fastest, highest power) and delta-sigma ADCs (slowest, highest resolution). The MAX11336 belongs to the Maxim Integrated SAR ADC product family and is part of a broader category: data converter -> ADC -> SAR ADC -> multi-channel low-power SAR ADC. Compared with delta-sigma converters, SAR parts deliver deterministic latency, which makes them well suited to multiplexed multi-channel data-acquisition loops. Key features include 500 ksps throughput on a single +3.3 V supply, low power consumption of approximately 5.4 mW at full speed, hardware- or software-configurable analog input ranges, and 16 analog input channels that can be configured for 4-, 8-, or 16-channel single-ended or pseudo-differential operation. The integrated post-mux signal-conditioning access lets designers insert external filters or buffers between the multiplexer output and the ADC input - a feature rarely found in integrated multi-channel SARs. The MAX11336's CMOS SAR architecture combines an input track-and-hold with an internal reference capacitor DAC and a precision comparator. Its 500 ksps full-linear-bandwidth and external-reference architecture allow the noise floor and absolute accuracy to be tuned by the reference choice. The serial-interface controller supports SPI Mode 0 and Mode 3 with QSPI- and MICROWIRE-compatible timing modes. Power dissipation scales linearly with sample rate because there is no continuous internal conversion loop, simplifying thermal budgeting at lower throughputs. Typical applications include industrial process control and PLC analog input modules, automotive sensor interfaces (battery management, current shunt monitoring, and HVAC controls), portable and battery-powered instrumentation, optical-module monitoring, and multi-loop data-acquisition systems. The 32-TQFN (5x5) package makes the part attractive for compact PCB layouts with strict height restrictions, such as handheld test equipment and modular IO cards. When designing with this device, place the reference decoupling capacitor and the input RC network as close as possible to the analog pins, and route the analog and digital grounds as separate nets joined at a single point under the exposed pad. Because the part is specified for the automotive -40 to +125 °C range, derating of input bandwidth and reference settling time at high temperature should be validated against the datasheet AC Electrical Characteristics table. This page synthesizes distributor pricing, drop-in alternatives drawn from the same Maxim SAR ADC family and competitor parametric cross-reference data, and practical PCB layout and thermal notes that are not collected in the manufacturer datasheet.

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MAX11339ATJ+T - 10-Bit 500ksps 8-Ch SAR ADC | Maxim Integrated
MAX11339ATJ+T

MAX11339ATJ+T - 10-Bit 500ksps 8-Ch SAR ADC | Maxim Integrated

The Maxim Integrated MAX11339ATJ+T is a 10-bit, 500 ksps, 8-channel successive approximation register (SAR) analog-to-digital converter with post-mux external signal conditioning access, housed in a 32-pin TQFN (5x5 mm) package. The device features flexible input configurability with 4 or 8 single-ended / pseudo-differential / differential analog input channels, an external reference, and a high-speed SPI / DSP-compatible serial interface. Operating from a 2.35V analog supply (typical) and a 1.5V to 3.6V digital supply, the ADC delivers up to 500k conversions per second with low power consumption suitable for both industrial and automotive temperature grades. What is a SAR ADC? A successive approximation register ADC is a type of analog-to-digital converter that uses an iterative binary-search algorithm against an internal or external DAC to convert an analog input into a digital code. SAR ADCs deliver deterministic latency, no pipeline delay, and excellent DC accuracy, placing them in the hierarchy: SAR ADC -> ADC -> data converter -> mixed-signal IC. The MAX11339 family integrates an analog input multiplexer and track-and-hold, allowing one ADC core to sequentially sample many channels while preserving full sample-rate performance per channel. Key features include an integrated 4 or 8 input multiplexer, dedicated track-and-hold amplifier with 1:1 MUX:S&H:ADC ratio, SPI / DSP-compatible digital interface, and access to the post-mux analog front end for external signal conditioning such as programmable gain or filtering. The wide input range spans the analog supply rails, and the reference voltage is supplied externally to allow full-scale input scaling to match sensor or signal levels. Typical applications include industrial process control loops, multichannel data acquisition systems, automotive sensor monitoring, and embedded instrumentation front ends. The deterministic conversion latency also makes the part well suited to closed-loop control systems where predictable timing is required. When designing the input chain, place an RC anti-aliasing filter on each channel as close to the input pin as possible, and bypass the analog and digital supplies with 100 nF plus 10 uF ceramic capacitors. Drive the inputs through a low-impedance buffer if the source impedance exceeds 1 kohm to avoid conversion errors caused by incomplete settling of the internal S&H.

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MAX1133BEAP+G077 - 16-Bit 200ksps SAR ADC, 5V | Analog Devices
MAX1133BEAP+G077

MAX1133BEAP+G077 - 16-Bit 200ksps SAR ADC, 5V | Analog Devices

The Analog Devices (formerly Maxim Integrated) MAX1133BEAP+G077 is a 16-bit, 200 ksps successive-approximation analog-to-digital converter (SAR ADC) with an internal +4.096 V reference, operating from a single +5 V analog supply in a 20-pin SSOP package. The +G077 suffix denotes a specific custom reel/packaging variant supplied by Maxim/Analog Devices, while the underlying die and pinout are identical to the catalog MAX1133BEAP+. The device integrates an input scaling network, internal track-and-hold, and a serial interface that connects directly to SPI, QSPI, and MICROWIRE peripherals without glue logic. A successive-approximation ADC (SAR ADC) is a sampled-data converter that performs a binary search across an internal capacitive DAC to resolve each conversion in one cycle of the bit-clock. SAR ADCs are valued for their deterministic latency, lack of pipeline delay, and excellent DC accuracy, making them the preferred architecture for multiplexed data-acquisition systems, industrial-control front ends, and instrumentation where latency-free conversions matter. The MAX1133 family sits in the precision-industrial tier, offering 16-bit resolution at 200 ksps with an integrated reference to simplify board layout. Key features of the MAX1133BEAP include a maximum integral nonlinearity (INL) of ±1 LSB and differential non-linearity (DNL) of ±1 LSB (no missing codes), SINAD of 85 dB, signal-to-noise ratio (SNR) of 86 dB, and total harmonic distortion (THD) of -90 dB. The analog input accepts a true bipolar ±12 V or 0 to +12 V range thanks to an internal input scaling/level-shift network, while a unipolar 0 to +4.096 V input can also be applied directly. The device draws 7.5 mA during conversion and drops to a few microamps in shutdown, supporting low-duty-cycle multiplexing strategies. The MAX1133 is built on a CMOS SAR core with an integrated bandgap reference, calibration logic, and a high-impedance CMOS serial-output port. The 20-pin SSOP package offers a small footprint while keeping analog and digital grounds separated to reduce coupling noise from the serial interface into the analog input. The wide input range, internal reference, and serial interface make the part easy to integrate with modern microcontrollers and DSPs without external signal-conditioning circuitry. Typical applications include industrial process control, multi-channel data-acquisition cards, medical instrumentation, weigh scales, and loop-powered 4-20 mA sensor transmitters. When designing with the MAX1133BEAP, decouple AVDD and DVDD separately with 0.1 µF ceramic capacitors placed close to the pins, and provide a 10 µF bulk capacitor on AVDD. Route the analog input traces as guard-traced microstrip away from the serial clock and digital outputs, and place a small RC filter (typically 100 Ω and 10 nF) at AIN-ADC to limit out-of-band noise. Because the MAX1133 uses an internal reference, allow a 10 ms settling window after power-up before initiating conversions.

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MAX1134BCAP+ - 16-Bit 150ksps ADC, 3.3V, SSOP-20 | Maxim
MAX1134BCAP+

MAX1134BCAP+ - 16-Bit 150ksps ADC, 3.3V, SSOP-20 | Maxim

The Maxim Integrated (Analog Devices) MAX1134BCAP+ is a 16-bit, 150 ksps successive-approximation analog-to-digital converter (SAR ADC) with a single 3.3V supply input, housed in a 20-pin SSOP package. According to distributor listings, the part provides a 1-channel single-ended input, SPI/QSPI/MICROWIRE-compatible serial interface, integrated input scaling network, internal track/hold, and on-chip clock. The BiCMOS architecture achieves 150 ksps throughput at low power consumption suitable for portable and industrial data-acquisition systems. A SAR ADC is a successive-approximation-register analog-to-digital converter: it converts an analog input voltage into a digital code by performing one bit at a time using a comparator and a digital-to-analog converter (DAC) in a binary-search loop. In the broader component taxonomy, a SAR ADC sits under analog-to-digital converter -> data converter -> mixed-signal IC -> semiconductor. SAR ADCs are valued for deterministic latency, no-pipeline-delay behavior, and high DC accuracy, which makes them preferred over delta-sigma or pipeline ADCs in multiplexed channel-sampling and motor-control applications. The MAX1134BCAP+ integrates a track/hold amplifier, input scaling network, and clock generator, which eliminates the need for external components and reduces board area. The 150 ksps sampling rate combined with 16-bit resolution provides 91.3 dB theoretical dynamic range. The single 3.3V supply operation simplifies power-tree design in 3.3V-only systems, while the wide digital-interface compatibility (SPI, QSPI, MICROWIRE) allows direct connection to most microcontrollers and DSPs without glue logic. The MAX1134BCAP+ shares pinout and package with the MAX1135 family members, allowing designers to scale resolution (12/14/16-bit) and sample rate (150/200 ksps) using the same PCB footprint. The 20-pin SSOP (CAP suffix) is a 5.30 mm JEDEC standard body, while the 20-pin SSOP (EAP suffix) is a 7.20 mm JEDEC standard body - these are NOT drop-in compatible. Typical applications include portable instrumentation, data loggers, process-control front ends, pen-digitizer digitizers, and battery-powered measurement equipment. The wide operating temperature range suits industrial environments. When designing with this device, place the 0.1 uF decoupling capacitor within 3 mm of the AVDD pin and keep analog/digital ground returns separated until they join at the ADC. Source impedance should remain below the datasheet limit to maintain acquisition time.

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MAX1138KEEE+ - 12-Channel 10-Bit SAR ADC, I2C, QSOP-16
MAX1138KEEE+

MAX1138KEEE+ - 12-Channel 10-Bit SAR ADC, I2C, QSOP-16

The Analog Devices (formerly Maxim Integrated) MAX1138KEEE+ is a low-power, 10-bit, 12-channel successive-approximation analog-to-digital converter (SAR ADC) in a 16-pin QSOP package, operating from a single 2.7V to 3.6V or 4.5V to 5.5V supply. It integrates an internal track/hold, voltage reference, clock, and an I2C-compatible 2-wire serial interface supporting 400 kHz Fast Mode and 1.7 MHz High-Speed Mode operation. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary search algorithm with an internal DAC and comparator to convert analog input voltages into digital codes within a single conversion cycle per bit. Within the broader hierarchy, the MAX1138KEEE+ is a multi-channel data converter -> ADC analog-to-digital converter -> data-acquisition IC -> mixed-signal semiconductor. Key differentiating features include 12 single-ended analog input channels (vs. 4 channels on the MAX1136), an internal 2.5V reference, software-configurable unipolar/bipolar inputs, and an automatic channel-scanning state machine that cycles through selected channels sequentially. The part also integrates an internal oscillator and programmable acquisition time, eliminating the need for an external clock source. Typical applications include portable data logging, patient monitoring, system supervision in embedded control, thermocouple/thermistor front-end digitisation, and battery-powered instrumentation where the small QSOP-16 footprint and low supply current (typically 200 µA at the lowest throughput) are decisive. The internal reference and track/hold simplify BOM cost and layout complexity. When designing with this device, ensure the SCL/SDA pull-ups follow I2C bus specifications (typically 4.7 kΩ at 3.3V for Fast Mode) and that the AIN inputs respect the absolute-maximum input range to avoid latch-up. For best noise performance, place 0.1 µF bypass capacitors directly at VDD and use the internal reference rather than an external source. This page synthesises distributor pricing, drop-in alternatives (including same-family Maxim parts and cross-brand ADI replacements), and practical design notes not found in the manufacturer datasheet alone.

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MAX1138KEEE+T - 12-Ch 10-Bit I2C ADC, 5V | Maxim Integrated
MAX1138KEEE+T

MAX1138KEEE+T - 12-Ch 10-Bit I2C ADC, 5V | Maxim Integrated

The Maxim Integrated (now Analog Devices) MAX1138KEEE+T is a low-power, 10-bit, 12-channel analog-to-digital converter (ADC) with internal track-and-hold, voltage reference, clock, and an I2C-compatible 2-wire serial interface, housed in a 16-pin SSOP package. It operates from a single 4.5V to 5.5V supply, draws only 670 microA at the maximum sampling rate of 94.4 ksps, and supports both 400 kHz Fast Mode and 1.7 MHz High-Speed Mode I2C communication. The '+T' suffix indicates Tape-and-Reel packaging for high-volume SMT assembly. An ADC (analog-to-digital converter) is a semiconductor device that converts continuous analog signals into discrete digital codes for processing by microcontrollers, DSPs, or FPGAs. Successive-approximation-register (SAR) ADCs such as the MAX1138 deliver deterministic latency, low power, and excellent DC accuracy, making them the workhorse for industrial sensor reading, battery monitoring, and instrumentation front-ends. The MAX1138 belongs to the broader SAR ADC > multi-channel data converter > signal chain IC > semiconductor hierarchy. Key features include 12 analog input channels (11 single-ended plus differential), an internal 2.5V reference, software-configurable unipolar/bipolar input ranges, an external reference option for ratiometric measurements, and a hardware/software shutdown mode that drops supply current to 1 microA. The 16-pin SSOP (K package) measures approximately 4.9 mm x 3.9 mm with a 0.635 mm pitch, suiting compact designs where board area is at a premium. The MAX1138 integrates track-and-hold, clock, and reference on-chip, eliminating external components and reducing BOM cost. Its I2C interface supports up to eight devices on a single bus via two address pins, simplifying multi-ADC systems. The wide 4.5V-5.5V supply range makes it directly compatible with 5V microcontrollers and legacy industrial rails. Typical applications include industrial sensor monitoring (temperature, pressure, strain gauge bridges), portable instrumentation, patient monitoring devices, data-acquisition systems, and battery-powered measurement equipment. The 12-channel count is well suited to multi-zone HVAC controllers, PLC analog modules, and embedded control boards where many sensors share one ADC. When designing with the MAX1138KEEE+T, ensure the I2C pull-up resistors match the bus speed - 4.7k for 400 kHz, 1k for 1.7 MHz High-Speed Mode. Add 0.1uF decoupling close to VDD and bypass the reference pin per the manufacturer datasheet. For highest absolute accuracy, use an external low-noise reference instead of the internal 2.5V bandgap. This page synthesizes distributor pricing, drop-in alternatives sourced from manufacturer parametric data, and practical design notes that go beyond a single-datasheet reading.

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MAX1139KEEE+ - 10-Bit 12-Ch SAR ADC, I2C, 16-QSOP | Maxim Integrated
MAX1139KEEE+

MAX1139KEEE+ - 10-Bit 12-Ch SAR ADC, I2C, 16-QSOP | Maxim Integrated

The Maxim Integrated (Analog Devices) MAX1139KEEE+ is a low-power, 10-bit, 12-channel (6 differential), successive-approximation analog-to-digital converter (SAR ADC) with an I2C-compatible 2-wire serial interface, housed in a 16-pin QSOP package. It operates from a single 2.7V to 3.6V or 4.5V to 5.5V supply, includes an internal track/hold, internal 4.096V reference (K-grade), internal clock, and accepts analog inputs from 0 to VAVDD. The K-suffix variant indicates the higher 4.5V-5.5V supply option with 12 input channels. An SAR (Successive Approximation Register) ADC is a type of analog-to-digital converter that uses a binary search algorithm through an internal capacitive DAC to convert an analog input to a digital code in N conversion cycles for N bits of resolution. SAR ADCs are prized for low power consumption, deterministic latency, and excellent DC accuracy, making them a cornerstone architecture for multi-channel data-acquisition systems, sensor monitoring, and industrial control loops where a single ADC must sequentially scan many analog signals. Key features of the MAX1139KEEE+ include 117ksps maximum sampling rate (K-grade), I2C-compatible 2-wire serial interface (Fast Mode 400kHz), six analog input channels configurable as 6 single-ended or 3 differential inputs (12 total input pins), internal 4.096V voltage reference (K/M variants), low 670µA supply current at maximum sampling rate, and 1µA power-down current. The wide supply range lets the same part serve both 3.3V and 5V digital systems without level shifters. The architecture combines an input track/hold, a 10-bit charge-redistribution DAC, a comparator, and an internal 4.096V bandgap reference. The I2C address is factory-set (with 16 possible addresses) and the device supports both Standard Mode (100kHz) and Fast Mode (400kHz). The QSOP-16 package has a thermal resistance of approximately 150°C/W and is specified for the -40°C to +85°C extended industrial temperature range. Typical applications include portable data logging, patient monitoring, battery-powered instrumentation, HVAC sensor arrays, and process control. The 12 single-ended / 6 differential input channels make the part especially attractive for scanning multi-sensor arrays (temperature, pressure, flow) with a single ADC. The internal reference eliminates external reference components, reducing BOM and PCB area. When designing with this ADC, place 0.1µF bypass capacitors close to VDD and VAVDD pins, and ensure the I2C pull-ups (typically 2.2kΩ-10kΩ) are sized for the bus capacitance. The analog input impedance is high (multiplexer-based) so source-impedance effects are minimal, but a low-impedance input driver is still recommended for best AC performance. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the bare manufacturer datasheet. Pin-compatible 12-bit and 8-bit alternatives (MAX1239 and MAX1039 respectively) are documented in the alternatives section.

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MAX1139MEEE+ - 10-Bit 12-Ch I2C SAR ADC | Analog Devices
MAX1139MEEE+

MAX1139MEEE+ - 10-Bit 12-Ch I2C SAR ADC | Analog Devices

The Analog Devices (formerly Maxim Integrated) MAX1139MEEE+ is a low-power, 10-bit, 12-channel (6 single-ended/6 differential) successive-approximation analog-to-digital converter with an internal track/hold, internal voltage reference, internal clock, and an I2C-compatible 2-wire serial interface, housed in a 16-pin QSOP package. An SAR (successive-approximation register) ADC is a precision data-converter architecture that performs a binary search across an internal capacitive DAC to produce a digital output in N conversion cycles for N bits of resolution. SAR ADCs occupy the middle ground between flash converters (fastest, lowest resolution) and sigma-delta converters (highest resolution, slower), combining moderate speed (tens to hundreds of ksps), deterministic latency, and low power consumption, making them the workhorse for multi-channel data acquisition, sensor interfacing, and industrial control. The MAX1139MEEE+ operates from a single 2.7V to 3.6V supply, draws only 670 µA at the maximum 94.4 ksps sampling rate, and supports an I2C-compatible 2-wire serial interface. Key features include 10-bit resolution, software-configurable unipolar/bipolar and single-ended/differential inputs, an internal 2.048V reference, and a hardware/software shutdown mode that reduces supply current to under 1 µA for battery-powered applications. The 16-QSOP package is pin-similar to the rest of the MAX1136-MAX1139 family, allowing PCB reuse across 3V/5V and 4/12-channel variants. The internal 2.048V reference and track/hold eliminate external analog components, simplifying BOM and saving board area. The 94.4 ksps throughput and I2C bus up to 400 kHz (Fast-Mode) suit the device for monitoring slow-to-medium-speed signals such as temperature, pressure, and battery cell voltages in portable, industrial, and medical instruments. Typical applications include portable data loggers, battery-pack monitoring, industrial process control loops, HVAC sensor interfaces, and patient-monitoring front ends where multiple low-bandwidth analog channels must be digitized with deterministic latency and minimal firmware overhead. When designing with this part, add 0.1 µF bypass capacitors close to AVDD and DVDD and respect the 400 kHz I2C bus-capacitance budget. Because the inputs are software-configurable, a single MAX1139MEEE+ can replace several discrete ADCs and an analog mux, reducing both footprint and firmware complexity. This page synthesizes distributor pricing, drop-in same-package alternatives, and design notes not found in the manufacturer datasheet to accelerate the engineer's selection and layout decisions.

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MAX1139MEEE+T - 12-Ch 10-Bit SAR ADC I2C | Maxim Integrated
MAX1139MEEE+T

MAX1139MEEE+T - 12-Ch 10-Bit SAR ADC I2C | Maxim Integrated

The Analog Devices (formerly Maxim Integrated) MAX1139MEEE+T is a 10-bit, low-power, multi-channel successive-approximation analog-to-digital converter (SAR ADC) with 6/12 analog input channels and an I2C-compatible 2-wire serial interface, housed in a 16-pin QSOP package. It operates from a single 2.7V to 3.6V or 4.5V to 5.5V supply, integrates an internal track/hold, an internal 2.048V voltage reference (MAX1137/MAX1139 family), an internal oscillator, and an I2C serial interface in a single IC, drawing a low supply current suitable for battery-powered and portable systems. A SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of data converter that uses a binary search algorithm against an internal precision DAC to convert an analog input voltage into a digital code, one bit per clock cycle. SAR ADCs occupy the middle ground between slow but precise integrating/delta-sigma ADCs and fast but power-hungry flash ADCs: they offer 8-18 bit resolution, moderate sampling rates (up to several MSPS), zero-latency single-shot conversion, and low power consumption. Within the broader data-converter hierarchy, the MAX1139 belongs to: SAR ADC -> ADC -> Data Converter -> Mixed-Signal IC -> Semiconductor. Key specifications include 10-bit resolution, 6 or 12 single-ended input channels (software-configurable via the setup byte), an internal 2.048V reference, an I2C-compatible 2-wire serial interface with up to 400 kHz fast-mode support, an integrated track/hold amplifier, and an internal clock. The device operates over the -40C to +85C extended industrial temperature range. The MAX1136-MAX1139 family offers pin-compatible 4-channel MAX1136/MAX1137 (8-pin uMAX) and 12-channel MAX1138/MAX1139 (16-pin QSOP) variants sharing the same register set and serial protocol, enabling drop-in migration between channel counts and reference voltages (2.048V vs 4.096V) on the same I2C bus. Typical applications include portable and battery-powered instrumentation, system monitoring in networking and server hardware, multi-cell battery monitoring, power-supply supervision, sensor signal conditioning, and consumer-electronics front panels. The internal reference and small QSOP footprint minimize external component count, and the I2C interface allows up to four devices on a single 2-wire bus by selecting different slave addresses via external address pins. When designing with this part, observe I2C bus pull-up sizing: with four MAX1139 devices on the bus, total sink current is 4 x 3 mA = 12 mA, which limits pull-up resistor values to keep rise time within the 400 kHz fast-mode budget. The internal reference eliminates an external component but limits absolute accuracy to the trimmed internal value - verify against system calibration requirements before committing to the internal reference option. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing a consolidated engineering reference for the MAX1139MEEE+T.

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MAX113CAG+ 8-Bit 4-Channel ADC | Analog Devices
MAX113CAG+

MAX113CAG+ 8-Bit 4-Channel ADC | Analog Devices

Analog Devices MAX113CAG+ is an 8-bit, 4-channel analog-to-digital converter operating from a single +3 V supply and achieving a 400 ksps conversion rate in a 24-pin SSOP package. The converter uses a half-flash architecture to deliver a 1.8 µs conversion time, while its microprocessor-compatible parallel interface supports efficient connection to embedded control systems. The device also includes a power-down mode with 1 µA current consumption, making it suitable for portable and power-conscious industrial measurement systems. An ADC is a semiconductor device that converts an analog input voltage into a digital code for processing, storage, or control. The MAX113CAG+ belongs to the ADC and DAC hierarchy within integrated circuits and combines a four-channel multiplexer, sample-and-hold circuitry, an 8-bit flash converter, and a parallel digital interface in one package. Its four single-ended inputs allow one controller to monitor multiple analog sources without requiring a separate converter for every channel. Key features include 8-bit resolution, four analog input channels, a +3 V single-supply operating requirement, a 400 ksps conversion rate, and a 1.8 µs conversion time. The half-flash conversion architecture supports throughput-oriented acquisition while preserving the simple parallel interface commonly used by microprocessors and programmable logic controllers. A dedicated power-down function reduces supply current to 1 µA when intermittent measurements are sufficient. The MAX113/MAX117 family is designed for microprocessor-compatible data acquisition. The MAX113CAG+ provides four channels in the 24-pin SSOP package, distinguishing it from eight-channel family members. Its architecture is appropriate when several slowly changing or periodically sampled analog signals must be digitized into an 8-bit value. Because the converter uses a parallel data interface, the host processor must connect its data bus and control signals according to the manufacturer pin-description table. Typical applications include industrial process monitoring, factory automation, battery-powered instrumentation, data loggers, embedded environmental measurement, and general-purpose control systems. The 400 ksps rate is useful when the controller needs to scan all four inputs quickly, while the 8-bit resolution is appropriate for position, level, threshold, and status monitoring rather than laboratory-grade instrumentation requiring higher resolution. Designers should account for input-range selection, signal conditioning, acquisition timing, and reference accuracy when assigning the four analog channels. The +3 V supply and single-ended inputs simplify portable measurement systems, while the 24-pin SSOP footprint requires careful routing of parallel bus signals. Use the manufacturer pin-description table when assigning tracks and confirm the power-down polarity before integrating the control logic. This product page organizes the MAX113CAG+ specifications, practical application guidance, lifecycle information, and verified same-package alternatives. It also highlights design constraints that are easy to overlook when selecting a multi-channel ADC, including interface timing, supply architecture, channel multiplexing, and power management.

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MAX113CAG+TG068 - 8-Bit 400ksps 4-Ch ADC | Maxim
MAX113CAG+TG068

MAX113CAG+TG068 - 8-Bit 400ksps 4-Ch ADC | Maxim

The Maxim MAX113CAG+TG068 is a +3V, 4-channel, 8-bit analog-to-digital converter (ADC) with 1 microampere power-down mode, delivered in a 24-pin SSOP (CAG) package and shipped on tape-and-reel with the +TG068 suffix. The device uses a half-flash conversion architecture to achieve a 1.8 microsecond conversion time, equivalent to a 400 ksps throughput, with an external reference. It is part of the MAX113/MAX117 family - the MAX113 offers 4 analog input channels while the MAX117 doubles that to 8 channels - and is designed for direct connection to microprocessors with mode-selectable read/write timing. An 8-bit ADC (analog-to-digital converter) is a data-acquisition IC that converts continuous analog input voltages into discrete 8-bit digital codes with 256 quantization levels, providing 48 dB of theoretical dynamic range. In the system hierarchy, the MAX113 sits under Data Acquisition -> Converter -> ADC -> Mixed-Signal IC. Half-flash (also called sub-ranging flash) architectures use two 4-bit flash sections and one DAC per conversion step to halve the comparator count versus a full flash design - this reduces die area and power consumption while still reaching 400 ksps, the practical speed boundary for parallel-output ADCs of this generation. Key features include single +3V supply operation, four single-ended analog inputs with channel selection, a hardware power-down pin that drops quiescent current to 1 microampere between conversions, and microprocessor-compatible interface logic. The half-flash engine delivers 8 bits of resolution at 400 ksps, suitable for system-monitoring loops, transducer digitizers, and portable instrumentation front-ends where low power and small PCB area matter more than 12-16 bit precision. The half-flash core samples an input through two 4-bit flash stages back-to-back. The first stage determines the four most-significant bits and computes a 4-bit residue using an internal DAC; the second stage resolves the four least-significant bits from that residue. This two-step technique halves the comparator count from 255 to about 32, lowering both silicon cost and switching noise - the trade-off is one extra clock cycle of latency per conversion, which is invisible to most microcontrollers polling the parallel data bus. Typical applications include handheld multimeter digitizers, portable industrial sensor front-ends, battery-powered data loggers, panel-meter readouts, and microprocessor-based control boards where multiple analog transducer signals must be read sequentially. The 1 microampere power-down current is specifically valuable for battery-management and IoT-sensor designs that wake the ADC only on demand. When designing with this IC, place the 0.1 microfarad VDD bypass capacitor within 5 mm of the VDD pin and keep the analog input traces short and guarded to ground. The MODE pin selects the read/write bus protocol - tie it high for memory-mapped interface or low for I/O-mapped interface - so make this decision before laying out the microcontroller bus. Do not leave the reference input floating; use a low-impedance reference such as a MAX6129 or a buffered +2.5V source for specified accuracy. This page synthesizes distributor pricing, drop-in same-package alternatives, pin-by-pin comparison, and practical design notes not collected in the manufacturer datasheet, helping engineers pick a replacement or verify second-source options without rereading twenty years of Maxim product change notices.

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MAX113CNG+ - 8-Bit 4-Channel 400ksps ADC | Maxim Integrated
MAX113CNG+

MAX113CNG+ - 8-Bit 4-Channel 400ksps ADC | Maxim Integrated

The Maxim Integrated MAX113CNG+ is an 8-bit, 4-channel flash analog-to-digital converter capable of 400 ksps conversion throughput, with a stated 1.8 microsecond conversion time, and is housed in a 24-pin PDIP package. It operates from a single +3 V supply and includes a power-down mode with a stated 1 microsecond shutdown current. The MAX113CNG+ combines four analog input channels, parallel microprocessor-compatible output, and an 8-bit resolution in one through-hole package. The half-flash conversion architecture provides a practical choice when a system needs moderate sampling speed and compact 8-bit measurement rather than higher-resolution SAR conversion. Its single 3 V supply also simplifies connection to contemporary 3.3 V digital systems. According to the available manufacturer-datasheet descriptions, the MAX113 and MAX117 family is designed for microprocessor-compatible data acquisition and includes power-down capability. The MAX113CNG+ specifically provides four input channels, while the related MAX117 provides eight channels. Engineers can use the MAX113CNG+ for industrial control, instrumentation, panel interfaces, and other systems where four analog quantities must be sampled with a parallel interface. Its 24-pin PDIP package is easy to prototype and inspect, although the through-hole format is larger than a modern surface-mount ADC package. The device's 8-bit resolution represents 256 quantization levels, making it appropriate for coarse measurement, thresholding, position indication, and supervisory control rather than precision laboratory conversion. Application timing should be based on the specified 400 ksps throughput and the manufacturer's bus-access requirements. Power sequencing and signal-source drive capability must be checked against the full datasheet before production use, because those detailed limits are not present in the supplied source excerpts.

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MAX113EAG+ - 8-Bit 4-Channel 400ksps ADC | Analog Devices
MAX113EAG+

MAX113EAG+ - 8-Bit 4-Channel 400ksps ADC | Analog Devices

Maxim Integrated MAX113EAG+ is an 8-bit, 4-channel, 400ksps flash analog-to-digital converter operating from a single +3V supply in a 24-pin SSOP package. It combines a 1.8µs conversion time, microprocessor-compatible interfacing, and a 1µA power-down mode for compact low-power measurement systems. An ADC is a data-conversion IC that converts an analog voltage into a digital code for processing, measurement, or control. The MAX113EAG+ belongs to the flash-converter ADC hierarchy, combining a 4-bit flash stage with a 4-bit successive-approximation stage to achieve 8-bit resolution. This architecture supports sampling-based acquisition in industrial control, sensor conditioning, panel interfaces, and embedded instrumentation. The principal operating characteristics are 8-bit resolution, 4 analog input channels, a 400ksps conversion rate, and operation from a single +3V supply. The 24-SSOP package is intended for surface-mount assembly. A 1.8µs conversion time supports rapid acquisition, while the 1µA power-down current reduces standby consumption in intermittently operating equipment. The converter is designed for microprocessor-compatible systems, allowing acquisition results to be transferred through a digital bus and then processed by a microcontroller or logic controller. Its flash conversion method avoids the longer conversion sequence associated with successive-approximation-only ADC architectures. Supply-noise sensitivity, input-source impedance, acquisition timing, and output-code accuracy must still be evaluated against the circuit requirements. Typical uses include four-channel sensor acquisition, industrial process monitoring, digital panel meters, battery-operated instruments, and embedded control systems. The four-channel architecture reduces the number of separate converters required when several slow or moderate-speed analog signals must be digitized, while the 400ksps rate allows successive readings to be captured rapidly. The principal design consideration is preserving signal integrity from each sensor to the analog inputs. Use short traces, suitable input filtering, and an analog ground strategy consistent with the manufacturer datasheet. Because the device operates from +3V, confirm that every input remains within its specified analog input range before applying externally generated voltages. This product page combines the device specifications, application guidance, pin-compatible alternatives, and design notes needed to qualify the MAX113EAG+ for a new PCB. It also provides a structured path for comparing the converter with other same-package ADC options before final schematic approval.

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MAX113EAG+TG068 - 8-Bit 400ksps 4-Ch ADC | Maxim
MAX113EAG+TG068

MAX113EAG+TG068 - 8-Bit 400ksps 4-Ch ADC | Maxim

The Maxim Integrated MAX113EAG+TG068 (now part of Analog Devices) is a +3V, 400 ksps, 4-channel, 8-bit analog-to-digital converter (ADC) in a 24-pin SSOP package. It features a 1.8 microsecond conversion time using a half-flash architecture and a 1 microampere power-down mode for battery-sensitive applications. Operating from a single +3V supply, the device provides four single-ended analog input channels with microprocessor-compatible parallel interface. An ADC (Analog-to-Digital Converter) is a data-acquisition integrated circuit that converts continuous analog voltage signals into discrete digital codes. ADCs are a subset of data converters, which also include DACs (digital-to-analog). The half-flash (or sub-ranging flash) architecture used by the MAX113 family combines two flash converters and a DAC to achieve 8-bit resolution with fewer comparators than a pure flash design, reducing power consumption and die area. The MAX113EAG+TG068 belongs to the MAX113 product family alongside the MAX117 8-channel variant. Key features include 400 ksps throughput, 1.8 microsecond conversion time, 1 microampere power-down current, single +3V operation, and four single-ended analog inputs. The MAX113EAG+TG068 ships in tape-and-reel packaging with the +TG068 suffix indicating specific reel and packaging orientation. The 24-pin SSOP provides a compact surface-mount footprint suitable for high-density data-acquisition designs. Typical applications include portable and battery-powered instrumentation, digital signal processing front ends, multiplexing data-acquisition systems, and embedded industrial control. The 1 microampere power-down current makes the device particularly suitable for handheld meters and remote sensor nodes where quiescent draw directly affects battery life. The half-flash architecture delivers 8-bit resolution at sample rates suitable for audio-bandwidth signals and many sensor measurement applications. When designing with this ADC, ensure the analog input signal bandwidth is below the Nyquist limit for the selected sample rate, and add a low-pass anti-aliasing filter ahead of each input. Decouple AVDD with 0.1 microfarad ceramic and 10 microfarad tantalum capacitors placed close to the supply pin to minimize digital switching noise coupling into the analog front end. The power-down pin should be tied to logic-high only during active conversion windows to maximize battery life in portable designs. According to the Maxim datasheet, the +TG068 suffix is a packaging code that does not affect electrical specifications. This page synthesizes distributor pricing, drop-in tape-and-reel and tube equivalents, and practical design notes not found in the manufacturer datasheet, providing a consolidated decision guide for engineers evaluating 8-bit SAR-style half-flash ADCs in the SSOP-24 footprint.

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MAX113ENG - 8-Bit 4-Ch 400ksps ADC 1µA Power-Down | Maxim Integrated
MAX113ENG

MAX113ENG - 8-Bit 4-Ch 400ksps ADC 1µA Power-Down | Maxim Integrated

The Maxim Integrated MAX113ENG (now ADI) is a microprocessor-compatible 8-bit analog-to-digital converter with 4 single-ended input channels, offered in a 24-pin PDIP through-hole package. It operates from a single +3V supply and uses a half-flash conversion technique to achieve 1.8 µs conversion time (400 ksps throughput), with an active-low PWRDN pin that drops quiescent current to a typical 1 µA for battery-powered designs. What is an 8-bit half-flash ADC? A half-flash ADC is a type of analog-to-digital converter that uses two parallel 4-bit flash stages plus a digital-to-analog converter (DAC) and subtractor to perform an 8-bit conversion in roughly two comparator bank cycles, achieving tens to hundreds of ns per stage. Positioned in the taxonomy: ADC > data converter > signal chain IC > semiconductor, the half-flash architecture is the same family used by the MAX113's companion MAX117 (8-channel variant) and is well suited for embedded microcontrollers, data loggers, and instrumentation front-ends where medium-speed, low-power conversion is required and 12-16 bit precision is not necessary. Key features include a parallel microprocessor interface, single-ended analog inputs with external reference, software-configurable unipolar/bipolar input range, and an analog input bandwidth suitable for audio-bandwidth signals. A hardware power-down pin reduces standby current to 1 µA typical, allowing the ADC to be duty-cycled in battery-powered applications. The 24-pin PDIP package provides easy insertion into through-hole prototypes and educational platforms. The MAX113ENG uses two stacked 4-bit flash ADC sub-blocks plus an internal 4-bit DAC, achieving a total throughput of 400 ksps at 1.8 µs per conversion. The internal track/hold keeps input bandwidth compatible with audio-range multiplexed sources, and the external reference voltage scales the full-scale input range independently of the supply, simplifying ratiometric measurements. Typical applications include portable data loggers, battery-powered instrumentation, digital panel meters, simple DSP front-ends, and embedded 8-bit MCU analog input modules where a true 12-bit ADC is overkill but a discrete CMOS comparator ladder is too slow. Because of its 24-pin DIP form factor and 3V supply, it is a popular choice for hobbyist and educational hardware. Designers should add 100 nF decoupling capacitors directly across the VDD and AGND pins and use the PWRDN pin to manage average supply current in duty-cycled systems. The external reference determines absolute accuracy, so a low-drift, low-noise reference such as the MAX6125 or MAX6190 is recommended for instrumentation-grade measurements. This page synthesizes distributor pricing, drop-in alternatives (MAX113CNG, MAX113CAG, MAX113EAG, MAX113PNG, MAX117), and practical design notes not found in the manufacturer datasheet alone.

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MAX1142BCAP+ - 14-Bit 200ksps ADC, +5V, 20-SSOP | Maxim Integrated
MAX1142BCAP+

MAX1142BCAP+ - 14-Bit 200ksps ADC, +5V, 20-SSOP | Maxim Integrated

The Maxim Integrated MAX1142BCAP+ is a 14-bit, 200 ksps successive-approximation analog-to-digital converter (ADC) with a +5V single supply and an internal +4.096V reference, housed in a 20-pin SSOP package. The device features one single-ended analog input channel and a serial interface compatible with SPI/QSPI/MICROWIRE, eliminating the need for external logic. Its combination of an input scaling network, internal track/hold, on-chip clock, and integrated reference reduces total BOM cost and board area for compact data-acquisition designs. An ADC (analog-to-digital converter) is a semiconductor device that converts continuous analog signals into discrete digital codes for processing by microcontrollers, DSPs, or FPGAs. Successive-approximation-register (SAR) ADCs use a binary-search algorithm with an internal DAC to resolve N bits in N clock cycles, achieving an excellent balance of speed, resolution, and power consumption. Within the broader taxonomy, SAR ADCs sit between flash converters (fastest, lowest resolution) and sigma-delta ADCs (highest resolution, slowest), and they are a key sub-category of mixed-signal data converters used across industrial, instrumentation, and embedded systems. Key specifications of the MAX1142BCAP+ include 200 ksps sampling rate, 14-bit resolution (no missing codes), ±1 LSB INL (B-grade), an internal +4.096V reference, and 1 input channel. Power-supply requirements are +5V single-ended analog supply and +5V digital supply. The integrated +4.096V reference is convenient because 4.096V is exactly 1 mV per LSB, simplifying engineering-unit scaling. The wide input scaling network (via external resistor network) supports input ranges up to ±4A in current-sensing applications. The MAX1142BCAP+ uses a charge-redistribution DAC with a precision bandgap reference, achieving low noise and high DC accuracy. The serial interface uses SPI/QSPI/MICROWIRE protocols, allowing direct connection to most microcontrollers and DSPs. An external reference can override the internal +4.096V reference when higher accuracy or a different full-scale range is required. Typical applications include industrial process control and instrumentation, temperature and pressure monitoring with bridge sensors, current sensing in motor control, battery-powered data loggers, and patient monitoring. The wide input range makes it particularly attractive for ±4A current shunt monitoring and ±10V industrial signal conditioning. When designing with the MAX1142BCAP+, ensure adequate input scaling to match full-scale range, and provide proper decoupling at AVDD and DVDD pins. The internal reference requires a stable supply; for noisy environments, add a 0.1uF ceramic bypass capacitor adjacent to the REF pin to minimize reference-induced conversion noise. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet, providing a single reference for engineers evaluating or sourcing the MAX1142BCAP+.

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MAX1145BEAP+ - 14-Bit 150ksps 3.3V SAR ADC | Analog Devices
MAX1145BEAP+

MAX1145BEAP+ - 14-Bit 150ksps 3.3V SAR ADC | Analog Devices

The Analog Devices (formerly Maxim Integrated) MAX1145BEAP+ is a 14-bit, single-input, successive-approximation-register (SAR) analog-to-digital converter with a maximum sampling rate of 150 ksps, operating from a single 3.135 V to 3.465 V supply. Housed in a 20-pin SSOP package with an external reference input, this converter targets low-power precision data-acquisition front ends where a small footprint, simple serial interface, and deterministic latency of a SAR architecture are required. A Successive Approximation Register (SAR) ADC is a class of Nyquist-rate converter that performs a binary search across the analog input range using an internal DAC and comparator, producing one conversion result per N clock cycles. SAR ADCs offer deterministic conversion latency, no pipeline delay, inherently zero-latency single-shot sampling, and excellent DC accuracy. They sit between flash converters (fastest, lowest resolution) and sigma-delta converters (highest resolution, lowest bandwidth) in the data-converter hierarchy. Key specifications of the MAX1145BEAP+ include 14-bit resolution, single-ended analog input, SPI-compatible serial interface, and an external reference. The part is specified over the industrial temperature range and is offered in a 20-pin SSOP. The integrated track/hold and internal oscillator simplify external component count, while the shutdown mode reduces supply current for power-constrained or battery-operated applications. The architecture is built on a charge-redistribution DAC array combined with a precision comparator and SAR control logic. The 3.3 V single-supply operation simplifies power-tree design in 3.3 V digital systems, eliminating the need for level shifters. The wide input bandwidth of the front-end sample-and-hold supports accurate sampling of input signals well beyond the Nyquist frequency when an external antialiasing filter is applied. Typical applications include industrial process-control loops, portable instrumentation, data loggers, and sensor-signal conditioning where a single-ended input feeds a microcontroller or DSP via SPI. The external reference input allows the system designer to choose reference voltage for optimum dynamic range and ratio-metric measurements. When designing with this part, add a 0.1 uF ceramic bypass capacitor as close as possible to the supply pin and ensure the analog and digital ground returns share a single star-ground point. The shutdown pin can be asserted between conversions to reduce power consumption in low-duty-cycle applications. Refer to the manufacturer datasheet for full timing diagrams and reference-circuit recommendations. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single decision-ready reference for selecting and sourcing the MAX1145BEAP+.

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MAX1147BEUP+T - 14-Bit 4Ch 116ksps 3.3V Precision ADC | Maxim
MAX1147BEUP+T

MAX1147BEUP+T - 14-Bit 4Ch 116ksps 3.3V Precision ADC | Maxim

The Maxim Integrated MAX1147BEUP+T is a low-power, 14-bit, multichannel, successive-approximation analog-to-digital converter (ADC) with an internal track/hold (T/H), internal voltage reference, and internal clock. It provides 4 single-ended or 2 true-differential analog input channels, a 3-wire serial interface, and a maximum sampling rate of 116 ksps. The device operates from a single +2.7V to +3.6V supply, drawing 0.6 mA at 116 ksps. An SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of data converter that uses a binary-search algorithm and an internal DAC to resolve analog inputs. SAR ADCs sit within the broader hierarchy of data converters (ADC -> data converter -> mixed-signal IC -> semiconductor) and are valued for their deterministic latency, low power consumption, and inherent simplicity compared to delta-sigma or pipeline architectures. The MAX1147 family (MAX1146/MAX1147/MAX1148/MAX1149) shares a common 20-pin TSSOP pinout, with supply-voltage and channel-count differences distinguishing the variants. Key features of the MAX1147BEUP+T include ±1 LSB INL and DNL, an internal +2.5V reference (or optional external reference), a hardware-/software-/external-clock shutdown mode that reduces supply current to sub-microampere levels, and an SPI/QSPI/MICROWIRE-compatible serial interface. Its 20-pin TSSOP package, surface-mount gull-wing terminals, and industrial temperature grade (-40C to +85C) suit it for compact, cost-sensitive precision-instrumentation boards. Typical applications include portable data logging, patient monitoring, factory-automation sensor interfaces, pen-digitizer digitizers, and 4–20 mA loop-powered instruments. Designers should consider shutdown-mode current when budgeting battery life, and ensure the analog inputs remain within the supply rails to avoid linearity degradation.

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MAX114CAG+ 8-Bit 1MSPS 4-Channel ADC | Analog Devices
MAX114CAG+

MAX114CAG+ 8-Bit 1MSPS 4-Channel ADC | Analog Devices

The Analog Devices MAX114CAG+ is an 8-bit, 4-channel, 1MSPS flash analog-to-digital converter designed for microprocessor-compatible data acquisition systems. It operates from a single +5V supply, uses a half-flash conversion technique, and is available in a 24-pin SSOP package. The MAX114 family belongs to the flash ADC category within the broader analog-to-digital converter hierarchy. Flash ADCs use an internal parallel array of comparators and decoding logic to convert an analog input into a digital code. Compared with successive-approximation ADCs, the MAX114 architecture provides a stated 660ns conversion time, equivalent to approximately 1MSPS, while retaining an 8-bit resolution suitable for control, monitoring, and legacy parallel-interface systems. Key features of the MAX114CAG+ include four analog input channels, 8-bit resolution, a 1MSPS conversion rate, a microprocessor-compatible parallel output, and an active-low power-down function. The verified manufacturer data states that power-down current consumption is typically 1uA, and that the device returns to normal operating mode in less than 200ns. These characteristics make the converter useful in systems that need rapid sampling but do not require high-resolution or serial-interface conversion. The half-flash architecture is central to the MAX114CAG+ performance. The converter uses parallel internal comparison stages to acquire the input voltage and then resolves the final 8-bit code. This approach is appropriate for applications requiring deterministic acquisition timing and direct connection to a microprocessor data bus. The device is intended for single +5V operation, which simplifies the interface to older 8-bit control systems that already operate from a 5V rail. Typical applications include industrial control and instrumentation, process monitoring, sampled sensor interfaces, embedded measurement systems, and legacy data-acquisition equipment. The four-channel arrangement supports multiple analog inputs without requiring four separate converter packages, while the 1MSPS rate is suitable for control loops and waveform sampling where 8-bit resolution is adequate. Designers should account for the parallel interface and its timing when laying out the PCB. Input, ground, supply, and data-bus traces should be arranged to minimize digital switching noise at the analog inputs. The power-down pin should not be left floating, and the supply bypass strategy should follow the manufacturer datasheet recommendations for reliable operation of this older parallel-interface ADC. This page consolidates the verified MAX114CAG+ specifications, sourcing links, and design considerations with the manufacturer product information. It also distinguishes confirmed parameters from values that require review in the manufacturer datasheet, helping engineers evaluate this 8-bit ADC without confusing it with higher-resolution or serial-interface converters.

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MAX114CNG+ - 8-Bit, 4-Channel, 1MSPS ADC | Maxim Integrated
MAX114CNG+

MAX114CNG+ - 8-Bit, 4-Channel, 1MSPS ADC | Maxim Integrated

The Maxim Integrated MAX114CNG+ is an 8-bit, 4-channel, 1 MSPS precision analog-to-digital converter with a +5 V supply, single-ended inputs, parallel data interface, and 1 µA power-down current, housed in a 24-pin through-hole DIP package. It combines a multiplexer, sample-and-hold circuit, and flash-type ADC in a single device, allowing four analog inputs to be digitized with one 8-bit converter. An ADC is an analog-to-digital converter, a data-acquisition IC that transforms continuously varying voltage signals into binary values for processing by a microcontroller, computer, or control system. The MAX114 belongs to the data-converter hierarchy, where a multiplexed ADC shares one conversion core among several input channels. Its 1 MSPS conversion rate supports signal monitoring, process measurement, industrial control, instrumentation, and embedded data acquisition. Key features include 8-bit resolution, four single-ended input channels, a 1 MSPS sampling rate, parallel output configuration, flash ADC architecture, a 1:1 multiplexer-to-sample-and-hold ratio, and a +5 V analog supply. Power-down reduces the shutdown current to 1 µA, making the device useful in portable or intermittently operated systems where standby consumption matters. The commercial temperature grade supports general-purpose equipment rather than harsh automotive environments. Internally, the four analog inputs are routed by a multiplexer to a sampling circuit and flash conversion core. Because only one conversion core is used, the input multiplexing structure favors compact cost-sensitive designs over simultaneous-sampling systems. The 8-bit resolution provides 256 digital codes per conversion, so input scaling, grounding, and reference stability directly influence measurement resolution and repeatability. Typical uses include panel-meter and sensor-interface systems, industrial process monitoring, laboratory measurement equipment, battery-powered instruments, and four-channel control systems. The 24-pin DIP package supports prototyping and through-hole assembly but occupies more board area than modern surface-mount packages. Board layouts should route analog inputs away from digital switching nodes and provide a low-impedance return path to the converter ground. When designing around the MAX114CNG+, verify the complete pinout and analog input range in the manufacturer datasheet before layout because the supplied distributor data does not include the full pin mapping. Input conditioning, bypass capacitors, and external reference design remain essential for obtaining useful accuracy from the 8-bit conversion system. Commercial operation should also be checked against the system’s ambient-temperature envelope. This page consolidates verified distributor specifications, lifecycle information, package details, drop-in candidate data, and practical selection guidance. The comparison tables and design notes add engineering context beyond a distributor catalog entry while clearly separating verified facts from parameters that still require datasheet confirmation.

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MAX114EAG+ - 4-Channel 8-Bit 1Msps ADC | Analog Devices
MAX114EAG+

MAX114EAG+ - 4-Channel 8-Bit 1Msps ADC | Analog Devices

The Analog Devices MAX114EAG+ is a 4-channel, 8-bit, 1Msps flash analog-to-digital converter in a 24-pin SSOP package. It operates from a single +5V supply, uses a half-flash conversion architecture, and reaches a stated conversion time of 660 ns. The device also includes an active-low power-down input and microprocessor-compatible parallel control. An ADC is an interface IC that converts an analog voltage into a digital code for processing, measurement, or control. This flash ADC belongs to the ADC/DAC hierarchy, combining an 8-bit quantization stage with parallel digital outputs and chip-select logic. Its four input channels make it suitable for acquiring several related analog signals without requiring four separate converter packages. The MAX114EAG+ provides a 1Msps conversion rate, 8-bit resolution, four analog inputs, and one flash-conversion channel designation in the product description. Its single +5V supply simplifies system power architecture. An active-low PWRDN function reduces current consumption to typically 1 uA, while the manufacturer states that transition from power-down to normal operation takes less than 200 ns. Internally, the converter uses Maxim's half-flash technique to achieve a 660 ns conversion time. The microprocessor interface is designed to simplify connection to parallel bus systems, allowing read data to be captured directly after a conversion cycle. This architecture favors straightforward control over conversion timing, making the ADC suitable for deterministic acquisition rather than high-resolution waveform analysis. Typical applications include industrial control and measurement, industrial automation, embedded instrumentation, digital panel meters, sensor interfaces, and battery-powered portable measurement systems. The 8-bit resolution suits supervisory, control, and status measurements where 256 digital codes across the selected input range are sufficient. Multiple channels allow related transducer or potentiometer signals to be monitored sequentially. Designers should verify input-range, reference-voltage, timing, and logic-level details in the manufacturer datasheet before setting the PCB. Treat the active-low PWRDN polarity correctly, allow adequate settling time between acquisitions, and account for analog trace routing and supply bypassing. The SSOP package requires attention to lead geometry and thermal conditions during assembly. This product page consolidates the manufacturer specifications, family relationship, acquisition-oriented use cases, and replacement guidance for the MAX114EAG+. It is intended to help engineers identify whether its 4-channel, 8-bit, 1Msps architecture fits a new design or whether a different converter family is required for higher resolution, greater sampling speed, or more channels.

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MAX114ENG+ - 8-Bit, 4-Channel, 1Msps ADC | Analog Devices
MAX114ENG+

MAX114ENG+ - 8-Bit, 4-Channel, 1Msps ADC | Analog Devices

Analog Devices MAX114ENG+ is an 8-bit, 4-channel analog-to-digital converter with a 1Msps conversion rate, operating from a single +5V supply and using a parallel interface. The device is housed in a 24-pin PDIP package designed for through-hole PCB assembly and supports a 1µA power-down mode for low-power measurement systems. An ADC is a data-acquisition IC that converts an analog voltage into a digital code. Within the broader semiconductor and data-converter hierarchy, the MAX114 belongs to the parallel-interface ADC family. It combines four analog input channels with microprocessor-compatible digital outputs, allowing a host processor or microcontroller to read sampled values directly. The half-flash conversion architecture supports a 660ns conversion time according to the manufacturer datasheet. Key features include 8-bit resolution, four analog input channels, a maximum conversion rate of 1Msps, parallel data access, and a low-power shutdown current of 1µA. The MAX114ENG+ is identified as an industrial-temperature variant and is offered in a 24-pin PDIP package. These characteristics make it suitable for compact control, monitoring, and instrumentation systems where multiple slowly changing analog signals must be digitized without a high-speed serial data link. The half-flash ADC architecture uses internal sampling and conversion stages to achieve the stated 1Msps throughput. Parallel output reduces protocol overhead compared with a serial ADC, although it requires more PCB traces and host input resources. Each conversion produces one 8-bit code, giving 256 representable levels for a single analog channel. System accuracy therefore depends on analog front-end design, reference stability, source impedance, sampling timing, and the quantization resolution of the converter. Typical applications include industrial process monitoring, temperature and pressure acquisition, laboratory measurement equipment, embedded control panels, and general-purpose sensor interfaces. The four-channel arrangement is useful when several sensors must be sampled through a common multiplexer and parallel host interface. The 1µA shutdown mode also helps designers reduce standby consumption when the measurement function is not continuously required. For reliable implementation, maintain the supply voltage and logic levels required by the manufacturer datasheet, connect the analog reference exactly as specified, and account for source-impedance and acquisition-time requirements. Route analog and digital return currents carefully, provide suitable bypass capacitance near the supply pins, and use the parallel bus only where the host can support the associated pin count and timing. This page combines manufacturer device information with package, purchasing, replacement, and engineering guidance. It also distinguishes genuine same-footprint drop-in options from converters that require a different package or interface, helping designers avoid unnecessary PCB redesigns.

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