ADC/DAC
製品 (2518)
MAX1363MEUB+ - 12-Bit 4-Ch 133ksps ADC | Analog Devices
The Analog Devices (formerly Maxim Integrated) MAX1363MEUB+ is a 12-bit, 4-channel, low-power successive-approximation-register (SAR) analog-to-digital converter (ADC) with integrated programmable window comparator and SMBus Alert response interface, housed in a 10-pin uMAX (10-TFSOP/10-MSOP, 3.00 mm width) package. An ADC (analog-to-digital converter) is a data-acquisition mixed-signal IC that converts real-world analog voltages into discrete digital codes for processing by a microcontroller, DSP, or ASIC. SAR ADCs sample and digitize one input at a time using a successive-approximation register and a precision DAC loop, making them ideal for multiplexed multi-channel systems where low power and deterministic latency matter. The MAX1363 sits in the broader product hierarchy: ADC -> data converter -> data-acquisition IC -> mixed-signal IC -> semiconductor. By integrating a digital window comparator and the SMBus Alert response protocol, the MAX1363 functions as a 4-channel system monitor that can autonomously assert an interrupt when any input falls outside a user-programmed window. Key specifications include a maximum sampling rate of 133 ksps, 2.7 V to 3.6 V single-supply analog/digital operation, an internal 2.048 V reference (the MAX1364 variant uses 4.096 V), and supply current of 660 uA in internal-reference mode or 436 uA in external-reference mode at 133 ksps. The window comparator outputs interrupt via the SMBus Alert line, eliminating host polling and reducing firmware overhead. A 2-wire SMBus-compatible serial interface operates up to 400 kHz. Shutdown current drops to 0.5 uA with the reference disabled, making the part well suited to battery-powered multi-rail monitoring. The SAR architecture with internal auto-calibration yields excellent DC accuracy and high power-supply rejection (PSRR of plus or minus 0.01 LSB/V), enabling the part to ride on noisy system rails. The four analog inputs can be configured as 2 differential or 4 single-ended channels selected via the serial interface, and a dedicated analog-input current-limit protects against sensor faults and ESD transients. Typical applications include 4-rail system-voltage monitoring in servers and networking switches, battery-cell voltage monitoring in battery-management boards, environmental and HVAC sensor interface boards, and SMBus-based interrupt-generating monitoring of temperature and supply voltages in telecom and industrial equipment. The MAX1363's combination of low power, integrated comparator, and SMBus Alert makes it a workhorse for compute platforms that must supervise multiple rails without devoting firmware cycles to constant polling. When designing with the MAX1363, ensure the analog input signals remain within the supply rails and place 0.1 uF decoupling capacitors close to the supply pin. The internal 2.048 V reference allows direct scaling for 4-rail monitoring applications; for designs needing 5 V inputs use the external-reference mode (the MAX1364 variant uses 4.096 V reference for 5 V systems). This page consolidates distributor pricing tiers, drop-in alternative MPNs in the same uMAX-10 footprint, and practical design notes not always present in the manufacturer datasheet, helping procurement and design engineers compare, qualify, and source the MAX1363MEUB+ quickly.
MAX1363MEUB+T - 12-Bit 4-Ch 133ksps SAR ADC | Analog Devices
The Analog Devices (formerly Maxim Integrated) MAX1363MEUB+T is a 12-bit, 4-channel, low-power, successive-approximation analog-to-digital converter (ADC) with a 133ksps sampling rate and a 2.048V internal voltage reference, housed in a 10-pin µMAX (uSOP) package. It accepts 2 or 4 single-ended analog inputs and provides a digitally programmable window comparator with SMBus alert response, making it suitable as a 4-channel system monitor that runs autonomously once configured. A successive-approximation register (SAR) ADC is a precision data converter that uses a binary-search algorithm against an internal DAC to resolve an analog input to N-bit accuracy in N conversion clock cycles. ADCs of this type sit in the measurement-and-monitoring tier of the data-converter hierarchy (SAR ADC -> ADC -> data converter -> signal chain IC -> semiconductor). The MAX1363's specific subcategory - a system monitor - adds autonomous threshold comparison and a SMBus alert output, removing the burden of host-polled conversions in supervisory loops. Key features include a factory-trimmed 2.048V internal reference (giving 0.5mV per LSB at 12 bits), ±0.5 LBN integral non-linearity (INL), a single 3V to 3.6V analog supply, low 0.5mA operating supply current, and a programmable window comparator that asserts an interrupt when an input crosses user-configured thresholds. Communication is via a 2-wire SMBus-compatible interface operating up to 400kHz, and the device supports an extended -40°C to +85°C industrial temperature range. The MAX1363 differs from the sibling MAX1364 only in reference voltage (2.048V vs 4.096V); both occupy the same 10-pin µMAX footprint, so a design using the MAX1363 can be re-targeted to higher-voltage inputs by substituting the MAX1364 with no PCB rework. An internal 4MHz oscillator drives successive approximation, and the analog input structure supports true-rail inputs on the AIN pins when properly configured. Typical applications include 12-bit system monitoring with threshold alerting, single-supply data acquisition front-ends, digital panel meters, battery-powered supervisory boards, and SMBus-managed analog sensor interfaces. Because of its alert pin and programmable thresholds, it is especially useful when the host MCU cannot continuously poll each input. When designing with this device, ensure the 2.048V reference accuracy is acceptable for your LSB resolution (0.5mV/LSB) before deciding between the MAX1363 (2.048V) and MAX1364 (4.096V, 1mV/LSB). Note that 10-bit pin-compatible MAX1361/MAX1362 alternates can be used when 12-bit resolution is not required. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MAX1364MEUB+ - 12-Bit 4-Ch 133ksps ADC with Window Comparator | Maxim Integrated
The Maxim Integrated (Analog Devices) MAX1364MEUB+ is a 12-bit, 4-channel, low-power successive-approximation analog-to-digital converter (SAR ADC) that integrates a digitally programmable window comparator and SMBus alert response, housed in a 10-pin microMAX/uSOP package. It delivers a sampling rate of 133 ksps with an input range of 0 to 5.5 V and includes a 4.096 V internal reference, operating from a single 5 V analog supply. The integrated window comparator and SMBus alert function allow it to operate as a system monitor that can autonomously flag over-/under-voltage events without host CPU polling. What is a system-monitor ADC? A system-monitor ADC combines a precision analog-to-digital converter with a programmable threshold comparator and a digital alert interface. This class of ADC belongs to the broader hierarchy of data converters (ADC -> SAR ADC -> monitor ADC -> data acquisition IC -> signal chain IC -> semiconductor). Compared to a standalone SAR ADC, a system monitor offloads threshold detection to hardware, freeing the host MCU from continuous polling and reducing software overhead in supervisory and battery-monitoring designs. Key features include 4 single-ended analog input channels with input range 0 to 5.5 V, 12-bit resolution, 133 ksps throughput, an internal 4.096 V reference, an integrated programmable window comparator, and an SMBus alert response output for interrupt-driven monitoring. The 10-pin microMAX package measures approximately 3 mm x 3 mm, enabling compact designs in space-constrained system-monitor boards. The MAX1364MEUB+ uses a classic charge-redistribution SAR architecture with an input T/H and on-chip reference. Its window comparator is digitally programmable with upper and lower thresholds stored in on-chip registers, and the SMBus alert output implements the SMBALERT response protocol so multiple devices can share a single interrupt line. Quiescent current is kept low to suit always-on monitoring. Typical applications include 12V lead-acid battery monitoring, multi-rail system-health supervision, server/PSU voltage tracking, and standalone threshold/alerting systems. The wide input range also supports industrial 24V bus monitoring when paired with external resistive dividers. When designing with this device, the SMBus alert line requires a pull-up resistor, and the analog inputs benefit from RC anti-alias filtering when monitoring high-impedance or noisy rails.
MAX1393ETB+T - 12-Bit 312.5ksps SAR ADC | Maxim Integrated
The Analog Devices / Maxim Integrated MAX1393ETB+T is a 1.5V to 3.6V, 312.5 ksps, 1-channel true-differential / 2-channel single-ended, 12-bit SAR ADC housed in a 10-pin TDFN (3 mm x 3 mm) package. It features automatic shutdown, fast wake-up, and a high-speed 3-wire serial interface. An SAR (Successive Approximation Register) ADC is a type of analog-to-digital converter that uses a binary search algorithm and an internal capacitive DAC to digitize an analog input one bit at a time per clock cycle. SAR ADCs sit within the broader data-converter hierarchy (ADC -> data converter -> signal chain IC -> mixed-signal semiconductor) and are favored for applications needing moderate resolution at low-to-moderate sampling rates, deterministic conversion latency, and very low power consumption. The MAX1393 distinguishes itself with true-differential input capability in a single-channel configuration (or two single-ended channels), micropower operation suited for battery-powered systems, automatic shutdown between conversions to extend battery life, fast wake-up to resume sampling with minimal latency, and a compact TDFN-10 (3x3 mm) exposed-pad package that simplifies thermal dissipation and PCB layout. It supports an SPI/QSPI/MICROWIRE-compatible serial interface, simplifying connection to most modern microcontrollers and DSPs without bus-parallel pin overhead. Architecturally, the MAX1393 combines a track/hold front-end, a charge-redistribution DAC, a SAR control core, and an internal 2.5V reference option (with external reference override). The SAR conversion cycle completes in approximately 18 clock cycles, with the SCLK / DOUT / CS three-wire bus enabling throughput up to 312.5 ksps at the rated 3V nominal VDD. The integrated reference and true-differential input reduce the external BOM, lowering both cost and PCB area for space-constrained designs. Typical applications include portable and battery-powered instrumentation, sensor signal conditioning (thermistors, strain gauges, RTDs), handheld medical and fitness monitoring devices, industrial process monitoring loops (4-20 mA digitizers), data loggers, and consumer audio front-ends where 12-bit resolution is sufficient. The automatic shutdown feature extends coin-cell runtime in periodic-sampling architectures such as remote telemetry nodes. When designing with the MAX1393, ensure the input signal common-mode voltage is within the supply range and use the exposed pad for thermal relief and low-impedance ground. Add a 0.1 uF decoupling capacitor close to VDD; place the reference capacitor near AVDD/REF as the datasheet recommends for optimal AC performance. This page synthesizes current distributor stock, parametric drop-in alternatives, and design considerations not aggregated in the manufacturer datasheet alone, sourced from Maxim Integrated documentation and Octopart distributor feeds.
MAX1393MTB+T - 12-Bit 312.5ksps SAR ADC | Maxim Integrated
The Maxim Integrated MAX1393MTB+T is a 1.5V to 3.6V, 312.5 ksps, 1-channel true-differential / 2-channel single-ended, 12-bit successive-approximation analog-to-digital converter housed in a 10-pin TDFN-EP (3 mm × 3 mm) package. It combines micropower consumption with an automatic shutdown / fast wake-up cycle and a high-speed SPI/QSPI/MICROWIRE-compatible 3-wire serial interface, making it well suited for battery-powered precision data acquisition. An SAR ADC is a successive-approximation-register converter that performs a binary search against the analog signal using an internal DAC and comparator. Each conversion completes in one cycle of the internal clock, producing a deterministic latency and no pipeline delay. SAR ADCs occupy a unique position in the data-converter hierarchy: they sit between sigma-delta (highest resolution, lowest speed) and flash (lowest resolution, highest speed) converters, offering 8-18 bit resolution at 100 ksps to multi-msps sampling rates with very low active power. This makes them the default choice for multiplexed multi-channel low-frequency precision sampling. Key features of the MAX1393MTB+T include 312.5 ksps throughput, true-differential or 2-channel single-ended input multiplexer, automatic shutdown between conversions for extended battery life, and an external reference up to AVDD. The device also integrates a high-bandwidth track-and-hold and a serial interface that supports daisy-chaining of multiple ADCs on a single SPI bus. Architecturally, the MAX1393 uses a capacitive-charge-redistribution DAC array driven by an internal oscillator, with a single-supply LDO generating the internal core rail. The shutdown current is specified in the nanoampere range, allowing duty-cycled sampling for handheld instruments where the ADC wakes, converts, and re-enters shutdown on every host interrupt. Typical applications include portable medical instrumentation (blood-glucose meters, pulse oximeters), 4-20 mA industrial loop transmitters, handheld multimeters, battery fuel-gauges, and sensor-interface front-ends. The wide 1.5 V to 3.6 V supply range supports direct connection to single-cell Li-ion, two-cell alkaline, or 3.3 V digital rails without level shifting. When designing with this part, place the 1 µF AVDD bypass capacitor within 3 mm of the supply pin and keep the analog ground return separate from the digital switching return. Drive CNVST with a clean rising edge from a low-jitter timer or GPIO to minimize aperture uncertainty, especially when digitizing small signals near the 12-bit LSB threshold.
MAX1394ETB+T - 8-Bit 416ksps SAR ADC, 1.5V-3.6V | Maxim Integrated
The Maxim Integrated MAX1394ETB+T is a micropower, 8-bit, 416ksps successive-approximation analog-to-digital converter (SAR ADC) with a serial output, operating from a single 1.5V to 3.6V supply. Housed in a 10-pin TDFN-EP (3mm x 3mm) package with an exposed thermal pad, it offers a 1-channel true-differential / 2-channel single-ended input configuration, automatic shutdown, fast wake-up, and a high-speed 3-wire SPI-/QSPI-/MICROWIRE-compatible serial interface. According to the Maxim datasheet, throughput is up to 416 ksps with very low supply current that drops further in auto-shutdown between conversions, making the part ideal for battery-powered and handheld instruments. An SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a sampling ADC architecture that resolves a single input voltage in N clock cycles by successively comparing the input against a binary-weighted DAC. SAR ADCs are valued for low latency, deterministic conversion time, and excellent DC accuracy with no pipeline delay - placing them in the hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. The MAX1394 family combines a true-differential analog front end with a serial interface to deliver high noise immunity in compact, low-power systems. Key features include a 2.7V (typ) supply current of only 0.5 mA at full 416 ksps, automatic shutdown that drops current to less than 1 microamp between conversions, an integrated input track-and-hold, single-ended or true-differential analog inputs, and a 3-wire serial digital interface compatible with SPI, QSPI, and MICROWIRE. The wide 1.5V to 3.6V supply range lets the part run directly from a single Li-Ion cell or two AA cells. The device is built on a low-power CMOS process with a switched-capacitor charge-redistribution DAC and an input track-and-hold amplifier. The reference voltage can be supplied externally or driven from the supply, while the differential input architecture rejects common-mode noise from motors or RF sources - a useful property in industrial and instrumentation designs. Typical applications include portable data logging, 4 mA-to-20 mA loop-powered sensor transmitters, pen tablets and touch screens, battery-powered instrumentation, isolated industrial monitoring, and consumer measurement devices. The combination of 416 ksps speed, micropower shutdown, and a small TDFN-10 footprint makes the part a strong fit for space-constrained, low-duty-cycle systems. When designing with this ADC, place the 0.1 microfarad supply bypass capacitor as close as possible to the AVDD pin and tie the exposed pad (EP) to analog ground for proper heat and noise dissipation. Choose an external low-noise reference when input DC accuracy is critical, since the ADC has no on-chip precision reference. This page synthesizes distributor pricing, drop-in TDFN-10 alternatives, and practical design notes not found in the manufacturer datasheet.
MAX1394MTB+T - 8-Bit 416ksps SAR ADC | Maxim Integrated
The Maxim Integrated MAX1394MTB+T is an 8-bit, 416 ksps successive-approximation analog-to-digital converter (SAR ADC) with two single-ended (or one true-differential) input channels, housed in a 10-pin TDFN (3x3 mm) exposed-pad package. It operates from a single 1.5 V to 3.6 V supply, drawing only micro-power quiescent current suitable for battery-powered and portable designs. A SAR ADC is a type of data converter that uses a binary-search algorithm implemented with a capacitive charge-redistribution DAC and a single comparator. Each conversion cycle resolves one bit at a time over N clock cycles for an N-bit result. SAR ADCs are valued for their deterministic latency (single-cycle conversion), low power consumption, and excellent DC accuracy compared to sigma-delta or pipelined architectures of similar resolution. The MAX1394MTB+T belongs to the data-acquisition IC category, within the signal-chain family of mixed-signal semiconductor components. Key features include 416 ksps maximum sampling rate, an external reference input for design flexibility, SPI/QSPI/MICROWIRE/DSP-compatible serial interface, true-differential or 2-channel single-ended input, automatic power-down between conversions, and a -40C to +85C industrial operating temperature range. The 10-TDFN package with exposed pad provides low thermal resistance and a compact 3 mm x 3 mm footprint suited to space-constrained PCB designs. The device integrates an input multiplexer, sample-and-hold, and SAR core in a single IC, eliminating the need for external signal-conditioning components. The external reference allows designers to optimize the input dynamic range for transducer scaling, while the SPI-compatible serial output enables direct connection to microcontrollers, DSPs, and FPGAs without parallel data-bus overhead. Typical applications include portable instrumentation, battery-powered sensor monitoring, industrial process control loops, handheld multimeters, and consumer audio metering. The micropower consumption extends battery life in wireless sensor nodes and wearable health devices. When designing with this part, choose the external reference voltage to set the LSB weight and ensure the source impedance is below the datasheet's recommended maximum to avoid gain errors. Place a 0.1 uF bypass capacitor as close as possible to the supply pin and tie the exposed pad to a clean analog ground plane for optimal noise performance. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
MAX1395MTB+T - 10-Bit 357ksps SAR ADC, 2-Ch | Maxim Integrated
The Analog Devices (formerly Maxim Integrated) MAX1395MTB+T is a 10-bit, 357 ksps, successive-approximation-register (SAR) analog-to-digital converter offering two input channels configurable as one true-differential or two single-ended inputs, housed in a 10-pin TDFN (3x3 mm) package. It operates from a single 1.5 V to 3.6 V supply and consumes only 2.7 mW at full speed, with automatic shutdown reducing quiescent current to 1 µA between conversions. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a comparator, a DAC, and a successive-approximation register to convert an analog input to a digital code one bit at a time, typically within N clock cycles for N-bit resolution. SAR ADCs sit within the broader data-converter family alongside flash, pipeline, sigma-delta, and dual-slope architectures, and are favored for low-latency, low-power, and easy-to-drive applications such as instrumentation, sensor read-out, and precision control loops. The MAX1395 belongs to the Maxim low-power SAR family targeted at battery-powered and portable systems. Key features include 357 ksps throughput, 1.5 V to 3.6 V single-supply operation, 2 µA automatic shutdown mode, an external REF input for ratiometric measurements, a 3-wire SPI/QSPI/MICROWIRE-compatible serial interface, and a true-differential input stage that delivers excellent common-mode noise rejection. The 10-pin TDFN-EP package provides a low thermal resistance path and a compact footprint suitable for space-constrained designs. Internally, the MAX1395 integrates a track-and-hold, comparator, charge-redistribution DAC, and SAR logic, delivering ±1 LSB INL and ±1 LSB DNL with no missing codes. The wide analog input range (0 to VREF for single-ended, ±VREF/2 for true-differential) supports bridge sensors, thermocouples, and other low-level signals without external signal conditioning. Typical applications include portable instrumentation, battery-monitoring front-ends, sensor conditioning for strain gauges and thermistors, patient-monitoring devices, and industrial process-control loops. The differential input stage makes it especially well suited for noisy industrial environments. When designing with this part, place the reference bypass capacitor (typically 0.1 µF) close to pin 7 to minimize reference noise and ensure clean conversions. The SHDN pin allows the host MCU to gate conversions for ultra-low average power in duty-cycled battery applications. This page synthesizes distributor pricing, drop-in alternatives from the same MAX139x family, and practical design notes not found in the manufacturer datasheet.
MAX1396EUB+T - 12-Bit 312.5ksps SAR ADC | Maxim Integrated
The Maxim Integrated (Analog Devices) MAX1396EUB+T is a 12-bit, 312.5 ksps successive-approximation-register (SAR) analog-to-digital converter that operates from a single 1.5V to 3.6V supply and offers pin-selectable 1-channel true-differential or 2-channel single-ended input operation. Housed in a 10-pin µMAX (uMAX-10, package code U10-1) package with gull-wing leads, this micropower serial-output ADC is engineered for space-constrained battery-powered instrumentation. A SAR ADC is a type of analog-to-digital converter that uses a binary-search algorithm against an internal precision DAC to digitize an analog input in N conversion cycles for N-bit resolution. SAR ADCs are valued for low latency, deterministic throughput, and lack of pipeline delay - qualities that distinguish them from sigma-delta ADCs (which trade speed for higher resolution through oversampling) and from flash ADCs (which trade resolution for raw speed). The MAX1396 sits in the SAR family -> ADC -> data converter -> signal chain IC -> semiconductor hierarchy. Key specifications include 312.5 ksps maximum sampling rate, true-differential or dual single-ended input multiplexer (CH0/CH1), an SPI/QSPI/MICROWIRE-compatible serial interface, on-chip track-and-hold, and an internal 2.5V reference. The MAX1396 also integrates a low-power shutdown mode that drops quiescent current to sub-microamp levels for power-constrained applications. The µMAX-10 footprint measures approximately 3.0 mm x 3.0 mm and offers superior thermal and electrical performance over equivalent SO-10 alternatives in handheld designs. Internal calibration and a high-impedance input structure simplify front-end signal conditioning. Typical applications include portable data loggers, handheld multimeters, 4-20 mA loop-powered sensors, battery monitoring systems, isolated sensor front ends, and patient-monitoring bedside devices. The 1.5V minimum supply makes it suitable for single-cell alkaline or NiMH-powered products where the ADC can run directly from a declining battery without a boost converter. When designing with the MAX1396, place a 0.1 µF decoupling capacitor within 5 mm of the VDD pin and keep analog input traces short and guarded to preserve the 12-bit accuracy. The internal reference requires a 1 µF external bypass capacitor for specified noise performance. Always observe the absolute maximum analog input range of VDD + 0.3V to avoid latch-up. This page consolidates distributor pricing, verified drop-in alternatives from the same Maxim/ADI family, and practical SAR-ADC layout notes not collected in the original datasheet.
MAX1396MTB+T - 12-Bit 312.5ksps SAR ADC | Maxim Integrated
The Maxim Integrated MAX1396MTB+T is a 1.5V-to-3.6V, 312.5ksps, 12-bit successive-approximation analog-to-digital converter (SAR ADC) housed in a 10-pin TDFN (HVSON) package. It supports a 1-channel true-differential or 2-channel single-ended input configuration and operates from a single 1.5V to 3.6V supply, drawing only 690uA (typ) at full throughput. An SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm implemented with a sample-and-hold amplifier, comparator, and a capacitive DAC. SAR ADCs sit within the broader hierarchy: ADC -> data converter -> mixed-signal IC. They are prized for low-latency, deterministic conversion - unlike sigma-delta ADCs that require digital filtering and exhibit higher latency, a SAR ADC produces a single conversion result per acquisition cycle, making it well suited to multiplexed data-acquisition and control applications. Key features of the MAX1396MTB+T include an integrated 3.84MHz internal oscillator, automatic power-down between samples (reducing supply current to <1uA at lower conversion rates), and an SPI/QSPI/MICROW-HICROWIRE-compatible serial interface. True-differential input operation simplifies interface to bridge sensors and thermocouples, while the wide 1.5V-to-3.6V supply range suits both lithium-ion and 3.3V digital systems. The device achieves at least 70dB SINAD and operates across the -40C to +85C commercial extended or -55C to +125C military temperature grade (the 'M' grade part). The MAX1396MTB+T utilizes a charge-redistribution capacitive DAC array combined with a high-bandwidth track-and-hold amplifier, achieving 312.5ksps throughput with no pipeline delay. The internal 3.84MHz oscillator eliminates the need for an external clock, and an on-chip reference buffer supports both internal 2.5V reference and external reference modes for system-flexibility. Typical applications include portable battery-powered instrumentation, 4-20mA industrial sensor loops, thermocouple and RTD signal conditioning, programmable logic controller (PLC) analog input cards, and handheld medical monitoring devices. The micropower architecture and automatic shutdown make it ideal for any low-duty-cycle data-acquisition node. When designing with this device, place 0.1uF bypass capacitors as close as possible to the AVDD and DVDD pins. Note that the part enters automatic shutdown at the end of each conversion when CS is held high, reducing idle current to less than 1uA - critical for battery-powered applications. The TDFN-10 package exposes a thermal pad on the underside that should be tied to the analog ground plane for optimal noise rejection. This page synthesizes distributor availability, parametric comparison, and practical design notes specific to the MAX1396MTB+T, complementing the manufacturer datasheet with a cross-brand drop-in view to ease second-source qualification.
MAX1396MUB+ - 12-Bit 312.5ksps SAR ADC | Maxim Integrated
The Maxim Integrated (now Analog Devices) MAX1396MUB+ is a 12-bit, 312.5 ksps, 1-channel true-differential/2-channel single-ended, successive-approximation-register (SAR) analog-to-digital converter housed in a 10-pin µMAX (TSSOP-10 equivalent) surface-mount package. It operates from a single 1.5V to 3.6V analog supply, drawing only 428 µA (typ) at full speed, and integrates a true-differential analog input with input protection up to ±6V. A SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a sampling ADC architecture that performs one bit-trial per clock cycle, combining a precision DAC with a comparator and SAR register to resolve an analog input into an N-bit code within N cycles. Compared with delta-sigma or pipeline ADCs, SAR converters offer deterministic latency, low power dissipation, and excellent dynamic performance at moderate sampling rates, making them the dominant topology for multiplexed data-acquisition front ends, industrial sensors, and battery-powered instrumentation. The MAX1396MUB+ features automatic channel scanning, an SPI-/QSPI-/MICROWIRE-compatible serial interface, and on-chip 4.096V internal reference. Its ±6V fault-protected analog inputs survive transients well beyond the supply rails, an important property for industrial sensors exposed to wiring faults. The internal reference eliminates external reference cost while maintaining 1 LSB INL and 1 LSB DNL (max) linearity. Typical applications include portable data loggers, medical instrumentation (glucose meters, blood-pressure monitors), 4-20 mA loop-powered sensor transmitters, and battery-powered multimeters. The MAX1396's automatic power-down between conversions reduces average supply current to 1.4 µA at low throughput, extending battery life in duty-cycled designs. When designing with the MAX1396MUB+, place the 0.1 µF input/output bypass capacitors as close to the IC pins as possible. The internal reference requires a 4.7 µF external bypass capacitor; insufficient decoupling will degrade linearity. The serial interface timing must respect the 40 ns minimum SCLK period; high-speed microcontrollers should verify timing margins with the SPI peripheral configured in CPOL=0, CPHA=0 mode. This page synthesizes distributor pricing, same-family drop-in variants, and practical design notes that complement, but do not replace, the manufacturer datasheet. Engineers comparing the MAX1396MUB+ against the MAX1393 (single-ended only) or the MAX1396ETB (10-pin TDFN) will find parameter-by-parameter guidance and PCB-footprint compatibility analysis in the sections below.
MAX1396MUB+T - 12-Bit 312.5ksps SAR ADCSPI
The Analog Devices (formerly Maxim Integrated) MAX1396MUB+T is a micropower, 12-bit, 312.5 ksps successive-approximation analog-to-digital converter (SAR ADC) with a serial SPI/QSPI/MICROWIRE-compatible interface, offered in a 10-pin TDFN-EP (3 mm x 3 mm) package with an exposed thermal pad. The device operates from a single 1.5 V to 3.6 V supply, draws only 437 uA (typ) at full sampling rate, and supports both a single-ended 2-channel input mux and a true-differential 1-channel input mode selected by software. The integrated 1.5 MHz internal oscillator and on-chip track-and-hold eliminate the need for external timing components, simplifying low-power sensor and instrumentation designs. A SAR (Successive Approximation Register) ADC is a precision converter that performs bit-by-bit comparison against a high-accuracy internal DAC to digitize an analog input in N clock cycles, where N is the resolution. SAR ADCs occupy the middle of the speed-versus-precision trade-off space: faster than integrating or delta-sigma converters at moderate resolution, but slower than flash or pipeline architectures. They are widely used in industrial process control, multi-channel data acquisition modules, portable medical instruments, and battery-powered sensor conditioning because they require no warm-up time and consume essentially no quiescent current between conversions. SAR ADCs sit within the broader data-converter IC family, which also includes flash, pipeline, and sigma-delta architectures. The MAX1396's 312.5 ksps throughput, ±1 LSB INL and DNL, true-differential input, and 1.5 V minimum supply enable direct connection to low-voltage sensor bridges, thermocouples, and battery stacks. The on-chip 2.5 V reference (MAX1396 variant) reduces external parts count, while automatic power-down between conversions lowers average supply current to microampere levels in duty-cycled applications. The wide ±16 V input range (with appropriate input protection) and small TDFN footprint suit portable instrumentation. Typical applications include battery-powered sensor signal chains, portable medical monitors, industrial process-control loops, handheld multimeters, and 4-20 mA loop-powered transmitters. The wide supply tolerance also makes the device compatible with 1.8 V, 2.5 V, and 3.3 V microcontroller rails. Designers should note that the exposed pad must be soldered to the ground plane for thermal dissipation and low-impedance reference return; omitting it can degrade noise performance and INL by several LSBs.
MAX1400CAI - 18-Bit Sigma-Delta ADC, 28-SSOP | Maxim
The Maxim MAX1400CAI is a +5V, 18-bit, low-power, multichannel, oversampling sigma-delta analog-to-digital converter (ADC) housed in a 28-pin SSOP package. It delivers true 16-bit accuracy through a sigma-delta modulator followed by a digital decimation filter, supports 3 differential or 5 single-ended input channels, and provides a 4.8 kSPS maximum conversion rate with a serial SPI-compatible output. The MAX1400CAI serves applications requiring high-resolution measurement in industrial and instrumentation systems. A sigma-delta ADC is a type of oversampling converter that trades speed for resolution by sampling the input at a much higher rate than the Nyquist frequency and using noise-shaping to push quantization noise out of the baseband. It then decimates the high-rate bitstream into a low-rate, high-resolution code. Within the converter family hierarchy, the MAX1400CAI sits between general-purpose successive-approximation register (SAR) ADCs (faster but lower resolution) and higher-channel-count delta-sigma audio converters. As a data converter, it belongs to the broader category of mixed-signal ICs within power-management-adjacent signal-chain semiconductors. Key features of the MAX1400CAI include 18-bit resolution with no missing codes, a +5V analog supply (with +3V to +5V digital interface compatibility), low quiescent power consumption suitable for battery-powered and loop-powered designs, an integrated digital filter, and a flexible serial interface. Programmable gain and self-calibration further enhance accuracy across the input range. The 28-pin SSOP package offers a compact surface-mount footprint suitable for high-density PCB designs. Technically, the device uses a second-order sigma-delta modulator followed by a digital SINC3 decimation filter to provide simultaneous 50Hz/60Hz rejection. Internal programmable-gain amplifier (PGA) stages support gains up to 16x. The architecture achieves 16-bit effective resolution while remaining simple to interface with microcontrollers via its SPI/QSPI/MICROWIRE-compatible serial port. Typical applications include industrial process control, weigh scales, portable instrumentation, temperature monitoring with RTD/thermocouple front ends, and smart sensor signal conditioning. Its low power and 50Hz/60Hz simultaneous rejection make it ideal for line-frequency industrial environments. When designing with the MAX1400CAI, route analog and digital grounds separately and join them at a single point near the ADC. Use a low-noise precision voltage reference for absolute-accuracy applications. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MAX1400EAI - 18-Bit Sigma-Delta ADC, 28-SSOP | Analog Devices
The Analog Devices (formerly Maxim Integrated) MAX1400EAI is a +5V, 18-bit, low-power, multichannel, oversampling sigma-delta analog-to-digital converter housed in a 28-pin SSOP package. It integrates a sigma-delta modulator with a digital decimation filter to deliver true 16-bit accuracy at up to 480 sps output data rate, while supporting three differential or five single-ended input channels via an analog front-end multiplexer. A sigma-delta ADC is a type of oversampling converter that trades converter speed for very high resolution and excellent noise immunity. By sampling at many times the Nyquist rate and then digitally filtering (decimating) the bitstream, the architecture pushes quantization noise out of the low-frequency band where measurement signals live. This category sits within the broader hierarchy: ADC -> data converter -> data acquisition IC -> signal chain -> mixed-signal semiconductor. Key features of the MAX1400EAI include user-selectable decimation factor, an SPI/QSPI/MICROWIRE-compatible serial interface, on-chip PGA with gain up to 128, programmable current sources for sensor excitation, and a low 1.7 mA typical operating current from a single +5V supply. Internal calibration registers trim offset and gain at any data rate, removing the need for external trimming potentiometers in precision systems. The device is built on a low-power CMOS process and includes a digital comparator, on-chip oscillator, and flexible input multiplexer that lets engineers configure any channel as differential, single-ended, or even as a current input for 4-20 mA loops. The combination of integrated excitation current sources and high PGA gain makes it particularly well suited to direct bridge-sensor digitization without front-end instrumentation amplifiers. Typical applications include industrial process-control loops (4-20 mA, RTD, thermocouple), weigh scales and load-cell signal conditioning, portable and battery-powered instrumentation, smart sensor transmitters, and medical monitoring devices. The wide input range and integrated PGA simplify designs that previously required dedicated analog signal conditioning. When designing with this part, plan the input common-mode and PGA gain trade-off carefully: PGA gains above 32 reduce the absolute input common-mode range, so refer to the input specifications section of the manufacturer datasheet when configuring high-gain differential measurements. Place the reference bypass capacitor close to the REF pin to avoid conversion gain errors. This page synthesizes distributor pricing, drop-in alternatives, comparison parameters, and practical design notes that are not aggregated on any single manufacturer page, giving procurement and design engineers one place to evaluate the MAX1400EAI for new designs and second-source qualification.
MAX1401EAI - 18-Bit Sigma-Delta ADC, 28-SSOP | Maxim Integrated
The Maxim Integrated MAX1401EAI is an 18-bit, low-power, multichannel, oversampling sigma-delta analog-to-digital converter (ADC) housed in a 28-pin SSOP package and specified for industrial temperature operation. According to the Maxim datasheet, the device integrates a sigma-delta modulator with a digital decimation filter that delivers true 16-bit accuracy with no missing codes at 480 sps, and supports a maximum output rate of 4.8 ksps at reduced resolution. The +3V supply operation, 250 uA operating quiescent current, and 2 uA power-down current make it well suited to loop-powered and battery-fed sensor acquisition. A sigma-delta ADC is a converter topology that oversamples the input signal at many times the Nyquist rate and shapes quantization noise out of the signal band, allowing the use of simple 1-bit hardware with extensive digital filtering to extract high effective resolution at low input bandwidth. Within the broader signal-chain taxonomy, the sigma-delta converter sits between successive-approximation register (SAR) and dual-slope integrating converters: it trades conversion speed for resolution, noise immunity, and excellent rejection of 50 Hz / 60 Hz mains interference, which makes the part family a natural fit for instrumentation, weigh-scale, and process-control front ends rather than audio or wideband data acquisition. Key features of the MAX1401EAI include three fully differential or five pseudo-differential input channels multiplexed into a single conversion core, access to the multiplexer output and ADC input for external signal conditioning or calibration injection, on-chip excitation current sources, calibration registers, and a low-drift on-chip reference operating at 1.25 V. Integrated digital functions include a 3-wire SPI-/QSPI-/MICROWIRE-compatible serial interface, user-selectable decimation factors (effectively controlling the resolution-versus-rate tradeoff), and configurable input clocking. Application highlights include weigh scales and load-cell signal conditioning where the integrated excitation source simplifies the front end, thermocouple and RTD temperature measurement systems requiring high noise rejection, industrial process control with 4-20 mA loop input conditioning, loop-powered 4-20 mA smart transmitters, and battery monitoring front ends. Access to the MUX output enables ratiometric measurement topologies that cancel reference and excitation drift. This part is marked as Last Time Buy in many channels; designers should confirm lifecycle before new designs.
MAX1402EAI+W - 18-Bit Sigma-Delta ADC, 28-Pin SSOP | ADI
The Analog Devices (formerly Maxim Integrated) MAX1402EAI+W is a +5V, 18-bit, low-power, multichannel, oversampling sigma-delta analog-to-digital converter (ADC) housed in a 28-pin SSOP package. Key headline parameters include 18-bit resolution, 480 samples-per-second (sps) maximum output rate, 16-bit no-missing-code accuracy, and an integrated PGA. The device combines a sigma-delta modulator with a digital decimation filter, and integrates matched 200 µA on-chip current sources for sensor excitation. A sigma-delta ADC is a type of oversampling converter that trades speed for resolution by sampling at a rate much higher than the Nyquist frequency and shaping quantization noise out of the baseband. Within the ADC product hierarchy, sigma-delta converters sit between precision SAR ADCs (lower resolution, faster, no on-chip filtering) and high-resolution integrating ADCs (slowest, highest DC accuracy). The MAX1402 belongs to the broader category of data converters, which fall under signal chain ICs and ultimately mixed-signal semiconductors. Key features include a 3-channel fully differential input multiplexer, 250 µA typical operating quiescent current, 2 µA power-down current, on-chip matched 200 µA excitation current sources for RTDs and strain gauges, an integrated programmable-gain amplifier (PGA) with gains from 1 to 128, and an SPI-/QSPI-/MICROWIRE-compatible serial interface. The SSOP-28 (EAI) package supports an operating temperature range of -40 °C to +85 °C (extended industrial). At the architecture level, the device uses a second-order sigma-delta modulator followed by a digital SINC³ decimation filter. Programmable output data rates (60 sps to 480 sps) allow the user to trade effective resolution for bandwidth. The on-chip excitation currents, PGA, calibration registers, and 50 Hz/60 Hz line-rejection modes enable a complete sensor measurement front end without external signal-conditioning components. Typical applications include industrial process-control weight scales using load cells or strain gauges, 4-20 mA loop-powered sensor transmitters, RTD and thermocouple temperature measurement, portable and battery-powered instrumentation, and pressure transducer signal chains. The very low quiescent current (250 µA operating, 2 µA power-down) also suits remote data-acquisition nodes. Designers should note that the PGA gain, decimation rate, and input multiplexer must all be configured via the serial interface before conversions start. Decoupling the AVDD/DVDD pins with 10 µF + 0.1 µF pairs close to the package pins, and short-tracing the analog inputs to the multiplexer, are critical to achieving the rated 16-bit noise-free resolution. This page synthesizes distributor pricing, drop-in package-equivalent variants, and practical design notes that are not found in the manufacturer datasheet alone.
MAX1419ETN+D - 15-Bit 65Msps ADC | 56-QFN | Maxim Integrated
The Maxim Integrated MAX1419ETN+D is a 15-bit, 65 Msps analog-to-digital converter (ADC) optimized for baseband sampling, delivering a -79.3 dBFS noise floor and packaged in a 56-lead QFN-EP (HVQCCN). It accepts a fully differential analog input with a 2.56 Vp-p full-scale range and operates from a +5 V analog supply and a +3 V digital supply. An ADC (Analog-to-Digital Converter) is a data-conversion integrated circuit that samples continuous-time analog signals and produces discrete-time, finite-resolution digital codes. Within the data-converter hierarchy, the MAX1419ETN+D belongs to the high-speed pipeline ADC class, which sits between general-purpose SAR (Successive Approximation Register) ADCs and very-high-speed flash converters. Pipeline ADCs combine a small number of low-resolution stages with digital error correction to achieve 10-16 effective bits at sample rates from 20 to 200 Msps, making them the dominant architecture for wireless baseband, ultrasound, and broadband instrumentation. Key specifications include 65 Msps maximum conversion rate, 15-bit resolution, a 200 MHz -1 dB full-power input bandwidth on the track-and-hold, an internal 2.56 Vp-p differential input range, and a typical SNR near 75 dBFS at low input frequencies. The part supports CMOS-compatible digital outputs and offers a per-pin or byte-wide output mode for flexible FPGA or ASIC interfacing. Architecturally, the MAX1419ETN+D uses a multi-stage pipelined converter core with on-chip bandgap reference and integrated input track-and-hold. The 200 MHz input bandwidth allows the device to be clocked at up to 65 Msps while preserving -79.3 dBFS noise floor performance for baseband signals below approximately 30 MHz, while optional external filtering can extend usable bandwidth into the IF range. Typical applications include wireless baseband digitization for WCDMA/UMTS receivers, IF sampling in narrow-band radio links, medical ultrasound signal chains, and high-speed instrumentation. The wide input bandwidth also makes the part useful as a general-purpose 65 Msps digitizer in multichannel data-acquisition boards. Designers should pay close attention to analog/digital supply decoupling, ground-plane partitioning, and the proper sequencing of the +5 V AVDD and +3 V DVDD rails. The exposed paddle must be soldered to a continuous low-impedance ground plane to achieve the rated thermal and dynamic performance, and the differential input must be DC-biased within the part's common-mode range for full-scale codes. This page synthesizes distributor pricing, same-family pin-compatible alternatives (MAX1418, MAX1427, MAX1429, MAX1430), and practical layout notes that go beyond the manufacturer datasheet.
MAX1419ETN+TD - 15-Bit 65Msps ADC -79.3dBFS | Analog Devices
The Analog Devices MAX1419ETN+TD is a 15-bit, 65Msps analog-to-digital converter (ADC) with a -79.3dBFS noise floor, packaged in a 56-pin WFQFN exposed-pad (HVQCCN) industrial-grade surface-mount housing. It accepts differential analog inputs, features a proprietary internal conversion architecture, and integrates a high-bandwidth track-and-hold suitable for baseband and IF digitization. The exposed pad (EP) of the WFQFN-56 package provides a low-thermal-resistance path to the PCB copper pour. An ADC (Analog-to-Digital Converter) is a mixed-signal integrated circuit that samples continuous analog voltages and converts them into discrete binary numbers for downstream DSP, FPGA, or ASIC processing. The MAX1419 belongs to the converter IC hierarchy: ADC -> data converter -> data acquisition IC -> mixed-signal IC -> semiconductor. Within Maxim/ADI's portfolio, the MAX1418 (lower speed), MAX1419 (65 Msps), MAX1428 (lower speed, higher dynamic range), and MAX1430 (higher speed) form a pin-compatible family that lets designers reuse PCB layout when migrating between sample-rate or dynamic-range targets. The MAX1419 achieves -79.3dBFS noise floor and high spurious-free dynamic range (SFDR) optimized for communications receivers, baseband digitization, and IF sampling subsystems. Its 15-bit native resolution provides 78 dB of theoretical SNR, balanced against the practical SFDR budget in dense signal environments. The part operates from a single 3.3V analog supply and a 3.3V or 1.8V digital supply, easing integration with low-voltage FPGAs. Architecturally, the MAX1419 uses a multi-stage pipeline core with digital error correction and an internal bandgap reference. The track-and-hold front end has been characterized for low-jitter sampling of intermediate-frequency signals, allowing undersampling of IF blocks in software-defined radio and instrumentation designs. Output data is presented over a dual CMOS or LVDS-style parallel interface compatible with standard FPGA receiver IP. Typical applications include baseband sampling in cellular base-station signal chains, IF-sampling ADCs for software-defined radio (SDR), medical imaging front ends, and industrial test and measurement digitizers. Industrial temperature grade (-40°C to +85°C) supports process-control and outdoor-telecom deployments. When selecting this part, ensure the FPGA-side parallel-data capture IP is configured for 15-bit wide bus mode and the PCB provides adequate copper mass beneath the exposed pad to keep junction temperature within the -40°C to +85°C industrial envelope.
MAX1420CCM+D - 12-Bit 60Msps 3.3V ADC | Maxim Integrated
The Maxim Integrated MAX1420CCM+D is a 12-bit, 60Msps, +3.3V low-power analog-to-digital converter (ADC) with an internal reference, housed in a 48-pin TQFP package (7x7 mm, 1.40 mm height, RoHS compliant). The device features a fully-differential input, a pipelined 12-stage ADC architecture, and a wideband track-and-hold (T/H) front end, optimized for high-speed, low-power data acquisition. An ADC (Analog-to-Digital Converter) is a data converter that samples continuous analog signals and outputs discrete digital codes. Within the broader taxonomy, the MAX1420 sits in the pipelined ADC subfamily of successive-approximation and pipeline converters, which themselves belong to the data converter / signal chain IC category and ultimately to the integrated circuit family. Pipelined ADCs like the MAX1420 deliver tens of megasamples per second at moderate resolution (10-14 bit), balancing speed and power efficiency for communications, imaging, and instrumentation. Key features include a 60Msps sample rate, 12-bit resolution, single +3.3V supply operation, fully-differential analog input for high common-mode rejection, internal precision reference, and CMOS-compatible digital outputs. The wideband track-and-hold preserves analog integrity at the full conversion rate, while the 12-stage pipelined architecture yields low latency and consistent throughput. Typical applications include high-speed data acquisition systems, digital oscilloscopes, IF sampling in communications receivers, CCD/CIS imaging systems, and medical imaging front ends. The low-power single-supply design also suits portable and battery-powered test equipment. When designing with this ADC, place decoupling capacitors close to the supply pins and route the analog and digital grounds as a split plane joined at a single point to minimize converter-induced noise coupling. This page synthesizes distributor pricing, drop-in same-brand alternatives from the MAX1420 family, and practical design notes not always present in the manufacturer datasheet.
MAX1420CCM+TD - 12-Bit 60MSPS 3.3V ADC | Maxim Integrated
The Maxim Integrated (Analog Devices) MAX1420CCM+TD is a 12-bit, 60Msps, +3.3V low-power analog-to-digital converter (ADC) with an internal reference, offered in a 48-pin TQFP (7 mm x 7 mm, 1.4 mm height) package and specified over the commercial 0°C to +70°C temperature range. It integrates a fully-differential input, a 12-stage pipelined ADC architecture, and a wideband track-and-hold (T/H) front-end that captures single-shot or IF-sampled baseband signals cleanly at full sampling rate. An ADC (analog-to-digital converter) is a data-conversion integrated circuit that transforms continuous analog voltages into discrete digital codes. Within the data-converter hierarchy, pipelined ADCs like the MAX1420 sit alongside successive-approximation (SAR) and flash converters as the dominant architecture for medium-to-high speed (1 MSPS to 250 MSPS) and 8-to-16-bit resolution requirements. ADCs are themselves a sub-category of data-conversion ICs, which together with DACs, sample-and-hold amplifiers, and references form the signal-chain building blocks inside mixed-signal and instrumentation systems. Key specifications of the MAX1420CCM+TD include a 60 MSPS sampling rate, 12-bit resolution, fully-differential analog input, internal precision reference, CMOS-compatible three-state parallel outputs with offset-binary coding, and a single 3.3V analog supply. The pipelined architecture and integrated T/H deliver low spurious content and consistent dynamic performance across the Nyquist band, while the internal reference removes the need for an external reference IC and simplifies board layout. Typical applications include IF/baseband sampling in communications receivers, medical imaging front ends, portable instrumentation, CCD/camera imaging pipelines, and ultrasound systems. In each of these, the combination of 60 MSPS throughput, 12-bit resolution, internal reference, and low-power 3.3V operation provides a compact data-conversion solution without external analog complexity. When designing with this part, observe the input common-mode biasing, drive the analog input in fully-differential fashion for best SFDR, and decouple AVDD/DRVDD with low-ESL ceramics placed within a few millimetres of the supply pins.
MAX1420ECM+T - 12-Bit 60MSPS +3.3V ADC | Maxim Integrated
The Analog Devices/Maxim Integrated MAX1420ECM+T is a 12-bit, 60Msps, +3.3V low-power analog-to-digital converter (ADC) with internal reference, offered in a 48-pin LQFP (TQFP-48) package, 7 mm x 7 mm x 1.4 mm, supplied on tape-and-reel. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples a continuous analog input voltage and converts it into a discrete digital code, and it is a fundamental building block of every data-acquisition system. The device hierarchy sits at: ADC -> data converter -> mixed-signal IC -> semiconductor. Pipeline (pipelined) ADCs such as the MAX1420 use a multi-stage architecture that delivers high sampling rates (tens to hundreds of MSPS) at low power, making them the industry default for intermediate-frequency digitization in communications, imaging, and instrumentation equipment. Key features include 12-bit resolution, 60 MSPS sampling rate, single +3.3V analog supply, fully-differential analog input, wideband track-and-hold, internal 2.048 V reference, and CMOS-compatible parallel offset-binary digital outputs with three-state control. Power dissipation is 176 mW (typical at 60 MSPS) with a power-down mode reducing consumption to under 1 mW. The MAX1420 uses a 12-stage pipelined architecture in which each stage resolves a few bits, feeds the residue to the next stage, and applies digital error correction at the end. This architecture enables the converter to achieve 60 MSPS at substantially lower power than a full-flash converter of equivalent resolution, while preserving wide input bandwidth and excellent spurious-free dynamic range (SFDR) suitable for IF-sampling digitizers. Typical applications include digital oscilloscopes, IF-sampling communications receivers, cable-headend digitizers, medical ultrasound front-ends, and imaging systems. The wideband track-and-hold allows accurate capture of high-frequency signals up to the Nyquist limit. When designing with this part, pay attention to the analog input common-mode voltage, which must be biased to mid-supply for best distortion performance, and use an analog supply with low-noise decoupling directly at the AVDD pin. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MAX1421CCM+D - 12-Bit 40Msps 3.3V ADC | Maxim Integrated
The Maxim Integrated MAX1421CCM+D is a 12-bit, 40Msps, 3.3V low-power analog-to-digital converter (ADC) with a fully-differential input, pipelined 12-stage ADC architecture, wideband track-and-hold (T/H), and internal precision reference, packaged in a 7 mm x 7 mm 48-pin LQFP (LFQFP) form factor. According to the Maxim/Analog Devices MAX1421 datasheet, the device targets commercial 0C to +70C operation, accepts a 3.3V analog/digital supply, and provides parallel offset-binary CMOS-compatible three-state outputs for direct connection to ASICs, FPGAs, or DSPs. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous analog waveforms and produces discrete digital codes; within the converter family, the MAX1421CCM+D is a pipelined successive-approximation hybrid (pipelined SAR) with wideband T/H, sitting hierarchically under data converter -> ADC -> high-speed pipelined ADC -> mixed-signal IC -> semiconductor. Pipelined ADCs deliver tens-of-MHz sample rates with multi-channel per-stage gain and quantization, trading slightly higher latency for throughput efficiency - the foundation behind ultrasound, communications baseband, and CCD imaging front ends. Key features include 12-bit resolution at 40Msps minimum sampling rate, 3.3V single-supply operation, internal precision 2.048V reference, fully-differential analog input for high common-mode rejection, wideband T/H supporting IF undersampling, and parallel offset-binary digital outputs. Per the datasheet, the part typically dissipates approximately 130 mW at 40Msps from a single 3.3V rail. Pin-compatible higher- and lower-speed drop-in variants are also offered in the same 48-pin LQFP package, simplifying board-level speed migration. Typical applications include high-speed data acquisition, CCD pixel processing, baseband sampling in wireless transceivers, medical ultrasound imaging front ends, and IF digitization in cable-modem / set-top-box receivers. The internal reference and single 3.3V supply simplify bill-of-materials versus discrete-ADC designs that require external references and negative rails. When laying out the PCB, keep analog input traces short and symmetric, decouple AVDD/DVDD with 0.1 uF plus 10 uF ceramic capacitors as close to the pins as possible, and isolate the digital output bus from the analog input region with a continuous ground plane. The internal reference is stable but should still be bypassed per datasheet recommendations to minimize kickback noise into the sample-and-hold. This page consolidates distributor pricing, parametric comparison against same-family MAX1421 variants and competitor ADCs, and PCB design notes beyond what is repeated on DigiKey/Mouser product listings.
MAX1427ETN+D - 15-Bit 80Msps ADC, -79.3dBFS | Maxim Integrated
The Maxim Integrated (now Analog Devices) MAX1427ETN+D is a 15-bit, 80Msps minimum sampling rate analog-to-digital converter (ADC) with a -79.3dBFS noise floor, optimized for baseband applications, packaged in a 56-pin TQFN-EP (8x8 mm) HVQCCN-style exposed-pad leadless carrier. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous-time analog voltages into discrete-time digital codes. High-speed pipeline ADCs such as the MAX1427 sit at the boundary between the analog front-end (anti-alias filter, driver amplifier) and the digital back-end (FPGA, DSP, or microcontroller), defining the achievable signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR) of the receiver or instrumentation channel. Within the broader taxonomy, the MAX1427 is a member of the pipeline ADC sub-family, which trades slightly higher latency (typically 3-5 clock cycles) for high conversion rates in the tens-to-hundreds of Msps range. Key specifications include 80Msps minimum sampling rate, a -79.3dBFS noise floor, 76.1dB SNR at fIN = 15MHz and AIN = -1dBFS, and 93.5dBc / 94.5dBc single-tone SFDR1 / SFDR2 at fIN = 15MHz. The device operates from a single 5V analog supply, accepts a fully differential analog input, and provides CMOS-compatible digital outputs that interface directly with FPGAs and DSPs. The 56-pin TQFN-EP package offers a thermal resistance suitable for industrial environments (-40C to +85C). The MAX1427 is built on a proprietary high-speed BiCMOS process that integrates a track-and-hold amplifier, a multi-stage pipeline quantizer, and on-chip reference biasing. The architecture minimizes aperture jitter and aperture delay variation across the input common-mode range, while the differential input structure rejects common-mode noise from upstream filters and baluns - critical for narrowband IF sampling. Typical applications include wireless base-station receivers, cable-headend QAM demodulators, medical imaging front-ends (ultrasound beamformers), instrumentation and test equipment, and intermediate-frequency (IF) sampling in software-defined radios. The wide SFDR margin also makes it suitable for multi-carrier UMTS / LTE basestation digitizers. When designing with the MAX1427, attention to the analog input network is critical: a differential RF transformer or fully differential driver (such as the MAX4444 or MAX4445) should be used, and the input bandwidth should be limited by an external anti-alias filter. Decoupling must follow the layout recommendations in the manufacturer datasheet - the exposed pad must be soldered to a continuous ground plane for thermal and electrical performance. This page synthesizes distributor pricing, drop-in alternatives sourced from the same Maxim family, and practical design notes not found in the standalone datasheet, providing information gain beyond the manufacturer document.
MAX1428ETN+TD - 15-Bit 80Msps IF ADC | Maxim Integrated
The Maxim Integrated (Analog Devices) MAX1428ETN+TD is a 15-bit, 80Msps analog-to-digital converter (ADC) with a -78.4dBFS noise floor, optimized for intermediate-frequency (IF) digitization in communications and instrumentation. The part is specified over the industrial temperature range, ships in a 56-lead HVQCCN (7x7 mm TQFN-style) package with no-lead terminations, and is supplied on tape-and-reel for high-volume SMT assembly. An ADC is a mixed-signal data converter that samples a continuous analog input voltage and quantizes it into a discrete digital code at a defined sample rate. High-speed pipeline ADCs such as the MAX1428 sit in the hierarchy of analog-to-digital converters -> data converters -> mixed-signal ICs -> semiconductors. The MAX1428 specifically targets the IF-sampling use case where a wideband analog signal at tens to hundreds of MHz must be captured directly, eliminating a second down-conversion stage in the receiver chain. Key performance figures include a guaranteed 80 Msps minimum sample rate, 73.9 dB SNR at fIN = 70 MHz and AIN = -2 dBFS, 83 dBc/91 dBc single-tone SFDR1/SFDR2 at the same input, -82 dB multitone SFDR for two tones at 69 MHz and 71 MHz, and exceptional aperture jitter below 0.25 ps that preserves dynamic performance at high analog input frequencies. The converter's noise floor of -78.4 dBFS gives the receiver chain enough dynamic range for sensitive demodulation. Architecturally, the part uses a pipelined multi-stage converter core with proprietary digital error correction, an internal bandgap reference, and a fully differential analog input path that improves common-mode rejection and harmonic performance. The +TD tape-and-reel packaging supports automated pick-and-place on high-density RF/IF receiver boards. Typical end uses include cellular base-station IF digitizers, software-defined radio receivers, broadband cable head-end equipment, spectrum analyzer acquisition channels, and medical ultrasound beamformers. Anywhere an analog signal in the 50 MHz to 200 MHz band needs direct digitization with high spurious-free dynamic range, the MAX1428 is a viable candidate. When designing with the MAX1428, supply a low-noise analog front-end to preserve the part's dynamic range; the 0.25 ps aperture jitter spec will only deliver the rated SNR if the input driver keeps the right ADC cleaner than the ADC's own internal noise. Decouple AVDD and DVDD with separate 0.1 uF ceramic capacitors placed as close to the pins as possible. This page synthesizes distributor pricing, parametric drop-in equivalents, and dynamic-performance design notes that go beyond the headline numbers in the manufacturer datasheet.