ADC/DAC
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AD7091R-5BRUZ-RL7 - 4-Ch 12-Bit I2C ADC | Analog Devices
The AD7091R-5BRUZ-RL7 is a 12-bit, multichannel, ultralow power, successive approximation analog-to-digital converter (ADC) from Analog Devices. It operates from a single 2.7 V to 5.25 V power supply and typically consumes only 24 µA at a 3 V supply in fast mode. The device provides a 2-wire serial interface compatible with I2C interfaces, making it ideal for space-constrained, battery-powered applications. An ADC (analog-to-digital converter) is a device that converts continuous analog signals into discrete digital numbers. The AD7091R-5 is a SAR (successive approximation register) ADC, which uses a binary search algorithm to determine the digital output. SAR ADCs are known for their high speed, low power, and small size, making them suitable for a wide range of applications from industrial process control to portable medical devices. As a data converter, it sits within the broader category of mixed-signal ICs, bridging the analog and digital domains. Key features include four single-ended analog input channels, an on-chip accurate 2.5 V reference, a channel sequencer for preprogrammed channel selection, and a programmable out-of-bounds user alert function. The device also features an on-chip conversion clock, eliminating the need for an external clock source. The I2C interface supports standard, fast, and high-speed modes, with a maximum throughput of 1 MSPS. The AD7091R-5 uses a low-power architecture that minimizes current consumption, with a typical supply current of 24 µA at 3 V in fast mode. The device includes a power-down mode that reduces current to less than 1 µA, extending battery life in portable applications. The internal reference provides a stable 2.5 V output, and the device can also operate with an external reference if required. Typical applications include battery monitoring, portable instrumentation, medical devices, and industrial process control. The I2C interface simplifies connection to microcontrollers and digital signal processors, while the small 20-lead TSSOP package saves board space. The device is specified over the industrial temperature range of -40°C to +125°C. When designing with this ADC, ensure that the analog input voltage does not exceed the supply voltage to avoid damage. Use a decoupling capacitor on the reference pin to maintain accuracy. The I2C address is set by the ADDR pin, allowing multiple devices on the same bus.
AD7124-4BBCPZ-RL7 - 24-Bit Sigma-Delta ADC | Analog Devices
The AD7124-4BBCPZ-RL7 is a low power, low noise, completely integrated analog front end for high precision measurement applications from Analog Devices. It contains a low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC) and can be configured to have four differential inputs or seven single-ended or pseudo differential inputs. The device operates from a 2.7 V to 3.6 V analog supply and a 1.8 V to 3.6 V digital supply, with a maximum output data rate of 19.2 kSPS. It is available in a 32-lead LFCSP (5x5 mm) package, making it suitable for space-constrained industrial and instrumentation designs. A sigma-delta ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution, typically 16 to 24 bits. It is widely used in precision measurement applications where low noise and high accuracy are critical, such as temperature sensing, pressure measurement, and process control. The AD7124-4 belongs to the ADC family, specifically the precision sigma-delta ADC category, which is part of the broader data converter and analog front-end hierarchy. Key features of the AD7124-4BBCPZ-RL7 include a programmable gain amplifier (PGA) with gains from 1 to 128, a precision low drift internal band gap reference, and an external differential reference that can be internally buffered. The device offers three power modes (low, mid, and full) to optimize power consumption versus noise performance, with a typical current consumption of 350 µA in low power mode. It also includes a 50 Hz/60 Hz rejection filter, a 24-bit resolution, and an SPI-compatible serial interface. The AD7124-4 integrates a complete signal chain, including a multiplexer, PGA, sigma-delta modulator, digital filter, and reference, reducing external component count and simplifying design. The device supports both internal and external references, and its digital filter provides programmable output data rates and settling times. The ADC is designed for high precision measurement applications, offering excellent noise performance with a typical RMS noise of 1.5 µV at a gain of 128 and an output data rate of 25 SPS. Typical applications include smart transmitters, process control input modules, temperature and pressure measurement, and low power or battery-operated instrumentation. The AD7124-4 is also suitable for weigh scales, strain gauge sensors, and thermocouple or RTD measurements. Its low power consumption and high resolution make it ideal for portable and remote sensing applications. When designing with the AD7124-4, it is important to provide adequate decoupling on the AVDD and DVDD supplies and to place the reference decoupling capacitor close to the REFIN pins. The device's power mode should be selected based on the required noise performance and power budget, as higher power modes offer lower noise but increased current consumption.
AD7124-4BRUZ - 24-Bit Sigma-Delta ADC with PGA | Analog Devices
The Analog Devices AD7124-4BRUZ is a low power, low noise, completely integrated 24-bit sigma-delta analog front end (AFE) ADC that can be configured for 4 differential inputs or 7 single-ended or pseudo-differential inputs, housed in a 24-lead TSSOP package. A sigma-delta (Σ-Δ) analog-to-digital converter is a type of ADC that oversamples the input signal and applies digital filtering to achieve very high resolution, typically 16 to 32 bits, making it the dominant architecture for precision measurement. Within the signal chain hierarchy, the AD7124-4 sits at the highest integration level: it combines the ADC, a programmable gain amplifier (PGA), a precision low-drift internal band gap reference, reference buffering, excitation current sources, and a flexible digital filter in a single power-management-friendly device. Key features include the 24-bit resolution sigma-delta core, an integrated PGA that amplifies small sensor signals directly, an internal precision band gap reference that removes the need for an external reference in many designs, and a power mode architecture that lets designers trade current consumption against noise and speed. The device also accepts an external differential reference which can be internally buffered, further simplifying high-accuracy designs. Architecturally, the AD7124-4 establishes a high degree of signal chain integration: the low-noise PGA, reference buffers, and digital filtering are all on-chip, so a thermocouple, RTD, or bridge sensor can often be connected directly to the analog input pins. The digital interface is a standard SPI-compatible serial port with a DOUT/RDY multifunction pin, allowing simple connection to any microcontroller. Multiple filter options allow output data rate and 50 Hz/60 Hz rejection to be tuned in firmware. Typical applications include RTD and thermocouple temperature measurement, pressure and weigh-scale bridge transducers, process control analog inputs, portable instrumentation, and smart transmitters where low power and high resolution are simultaneously required. A key design consideration is the power mode selection: the lowest power mode maximizes battery life but increases rms noise and reduces available output data rates, so noise versus power must be balanced per application. This page synthesizes distributor sourcing data, verified drop-in alternatives, and practical design guidance not consolidated in the manufacturer datasheet.
AD7124-4BRUZ - 24-Bit Sigma-Delta ADC | Analog Devices
The AD7124-4BRUZ is a low power, low noise, completely integrated analog front end for high precision measurement applications from Analog Devices. It contains a 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC) with a programmable gain amplifier (PGA) and an internal reference. The device can be configured to have four differential inputs or seven single-ended or pseudo differential inputs, making it highly flexible for various sensor and measurement applications. It is available in a 24-lead TSSOP package, operating over a temperature range of -40°C to +125°C. An analog-to-digital converter (ADC) is a device that converts a continuous analog signal into a discrete digital representation. The AD7124-4 is a sigma-delta ADC, which uses oversampling and noise shaping to achieve high resolution and excellent noise performance. It is part of the precision ADC family, which is essential in applications requiring accurate measurement of physical quantities such as temperature, pressure, and strain. The AD7124-4 integrates key signal chain components, including a PGA, reference, and excitation current sources, reducing external component count and simplifying design. Key features of the AD7124-4BRUZ include a 24-bit resolution, low noise performance, and low power consumption. It offers a maximum output data rate of 19.2 kSPS, with programmable gain from 1 to 128. The device includes an internal band gap reference with low drift, and also accepts an external differential reference. It supports SPI communication, and includes diagnostic functions such as open-circuit detection and overvoltage monitoring. The AD7124-4 is recommended for new designs, with a 1ku list price starting from $6.55. The AD7124-4 uses a sigma-delta architecture with a digital filter, providing high resolution and rejection of out-of-band noise. The PGA allows direct connection of low-level sensors, such as thermocouples and strain gauges, without additional amplification. The device operates from a 2.7V to 3.6V analog supply and a 1.8V to 3.6V digital supply, with a typical current consumption of 1.2 mA in full power mode. The internal reference has a typical drift of 10 ppm/°C, ensuring stable measurements over temperature. Typical applications include temperature measurement with RTDs and thermocouples, pressure measurement with bridge sensors, and industrial process control. The AD7124-4 is also suitable for battery-powered portable instruments due to its low power consumption. Its integrated excitation current sources simplify RTD and thermocouple biasing, while the PGA and reference reduce external component count. When designing with the AD7124-4, ensure proper decoupling of the AVDD and DVDD supplies, and place the reference decoupling capacitor close to the REF pin. The SPI interface should be isolated if the ADC is used in noisy industrial environments. The device supports both internal and external references, and the choice depends on the required accuracy and temperature drift.
AD7124-4BRUZ-RL - 24-Bit Sigma-Delta ADC | Analog Devices
The AD7124-4BRUZ-RL is a low power, low noise, completely integrated analog front end for high precision measurement applications from Analog Devices. It contains a low noise, 24-bit sigma-delta analog-to-digital converter (ADC) and can be configured to have four differential inputs or seven single-ended or pseudo differential inputs. The device operates from a 2.7V to 3.6V analog supply and a 1.8V to 3.6V digital supply, with a typical current consumption of 1.2 mA in full power mode. It is available in a 24-lead TSSOP package, making it suitable for space-constrained industrial and instrumentation designs. An analog-to-digital converter (ADC) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal. The AD7124-4 is a sigma-delta ADC, which uses oversampling and noise shaping to achieve high resolution and excellent noise performance. It is part of the broader category of data acquisition systems, which are essential in bridging the analog world to digital processing. The AD7124-4 integrates a programmable gain amplifier (PGA), a precision voltage reference, and a temperature sensor, reducing the need for external components and simplifying the signal chain. Key features of the AD7124-4 include a 24-bit resolution, a maximum output data rate of 19.2 kSPS, and a root mean square (RMS) noise of 1.8 uV at a gain of 128 and an output data rate of 25 SPS. The device offers three power modes (full, mid, and low power) to optimize power consumption versus performance, with a current consumption of 1.2 mA, 0.6 mA, and 0.3 mA respectively. It also features a 50 Hz/60 Hz rejection mode, which is critical for industrial applications where power line interference is common. The integrated PGA provides gains from 1 to 128, allowing direct connection to low-level sensors such as thermocouples and strain gauges. The AD7124-4 uses a sigma-delta modulator with a digital filter, providing high resolution and excellent linearity. The device includes a 24-bit register map for configuration and data readback, and it communicates via a serial peripheral interface (SPI) that is compatible with 3-wire or 4-wire operation. The internal reference has a typical drift of 5 ppm/°C, ensuring stable measurements over temperature. The device also includes a burnout current source and a diagnostic function that can detect open or shorted sensor inputs, enhancing system reliability. Typical applications include smart transmitters, process control input modules, low power or battery operated instrumentation, and temperature measurement systems. The AD7124-4 is also suitable for pressure and strain gauge measurements, where its low noise and high gain are essential. The device is recommended for new designs and is available in a tape and reel package (RL suffix) for automated assembly. When designing with the AD7124-4, it is important to provide a clean analog supply and a stable reference. The device requires a 100 nF decoupling capacitor on the AVDD and DVDD pins, and a 1 uF capacitor on the REFOUT pin. The SPI interface should be isolated from noisy digital circuits to maintain the ADC's noise performance. The device also supports a power-down mode, which can be used to conserve power in battery-operated systems.
AD7124-4BRUZ-RL7 - 24-Bit Sigma-Delta ADC | Analog Devices
The AD7124-4BRUZ-RL7 is a low power, low noise, completely integrated analog front end for high precision measurement applications from Analog Devices. It contains a low noise, 24-bit sigma-delta analog-to-digital converter (ADC) and can be configured to have 4 differential inputs or 7 single-ended or pseudo differential inputs. The device operates from a 2.7V to 3.6V analog supply and a 1.8V to 3.6V digital supply, with a maximum output data rate of 19.2 kSPS. It includes an integrated programmable gain amplifier (PGA) with gains from 1 to 128, an internal band gap reference, and an external differential reference option. The AD7124-4 is available in a 24-lead TSSOP package, making it suitable for space-constrained designs. An analog-to-digital converter (ADC) is a device that converts continuous analog signals into discrete digital numbers. The sigma-delta ADC architecture uses oversampling and noise shaping to achieve high resolution, making it ideal for precision measurement applications. The AD7124-4 is part of the ADC family, specifically a high-resolution, low-power sigma-delta converter, which is a key component in data acquisition systems, sensor interfaces, and industrial process control. Key features of the AD7124-4BRUZ-RL7 include a 24-bit resolution, low noise performance (RMS noise as low as 1.8 uV at a gain of 128), and low power consumption (typically 1.1 mA in full power mode). The device also offers a 50 Hz/60 Hz rejection mode, a 24-bit sigma-delta modulator, and a flexible SPI interface. The integrated PGA allows direct connection to low-level sensors such as thermocouples, RTDs, and strain gauges, eliminating the need for external amplification. The AD7124-4 uses a sigma-delta modulator with a digital filter, providing excellent noise performance and linearity. The device includes a precision, low noise, low drift internal band gap reference, and also accepts an external differential reference, which can be internally buffered. The ADC supports multiple power modes (full, mid, and low power) to optimize power consumption versus performance. The device is specified over the -40°C to +125°C temperature range, making it suitable for industrial and automotive applications. Typical applications include temperature measurement (thermocouples, RTDs, thermistors), pressure measurement, flow measurement, and industrial process control. The AD7124-4 is also used in battery-powered instrumentation, portable medical devices, and smart transmitters. Its low power consumption and high resolution make it ideal for loop-powered applications. When designing with the AD7124-4, ensure proper decoupling of the AVDD and DVDD supplies with 0.1 uF and 10 uF capacitors. The reference input should be bypassed with a 1 uF capacitor. For best noise performance, use a low-noise external reference if the internal reference is not sufficient. The SPI interface should be isolated if the ADC is used in noisy industrial environments.
AD7124-8BCPZ - 24-Bit Sigma-Delta AFE, 8-Ch, PGA | Analog Devices
The Analog Devices AD7124-8BCPZ is a low-power, low-noise, completely integrated analog front end for high-precision measurement applications. This 24-bit sigma-delta analog-to-digital converter (ADC) integrates a programmable gain amplifier (PGA), a precision internal bandgap reference, and a flexible input multiplexer supporting 8 differential or 15 pseudo-differential channels, all in a 32-lead LFCSP (5x5 mm) package. It operates from a 2.7V to 3.6V supply (with AVDD tolerant to 5V on selected rails) and delivers output data rates up to 19.2 kSPS through a 4-wire SPI interface. An analog-to-digital converter is a mixed-signal device that converts continuous analog signals into discrete digital codes, and a sigma-delta ADC is one of the most accurate architectures, using oversampling and noise-shaping to push quantization noise out of the signal band. Within the data converter hierarchy, the AD7124-8 is not just an ADC - it is a complete analog front end (AFE) that combines the modulator, digital filter, PGA, and reference into a single die, placing it above simple SAR or stand-alone sigma-delta converters in system integration. By eliminating the external precision reference and most of the input signal conditioning, the AD7124-8 collapses the typical sensor-measurement signal chain into a single device. Key features include 24-bit resolution, RMS noise as low as 1.8 uV at the 25 SPS output data rate, typical full-power-mode current of 1.2 mA, a programmable output data rate from 1.17 SPS to 19.2 kSPS, and an integrated PGA with gains from 1 to 128 for direct connection to low-level sensors such as thermocouples and strain gauges. Three user-programmable power modes (full, mid, low) allow designers to trade off noise against supply current at the system level. Architecturally, the second-order sigma-delta modulator feeds a configurable digital filter, and the device offers simultaneous-50Hz/60Hz-rejection modes for industrial instrumentation. The 24-bit register map and SPI-compatible serial interface simplify integration with microcontrollers and DSPs. Typical applications include direct thermocouple and RTD temperature measurement, weigh scales, pressure and flow transmitters, industrial process-control analog input modules, and battery-cell monitoring. A design tip: bypass AVDD and DVDD with separate 10 uF and 0.1 uF capacitors, use a clean analog ground plane, and populate REFIN+/FOUT inputs with a 10 uF capacitor to keep reference noise below the ADC noise floor. Prices are referenced as of 2026-10-06 from distributor stock.
AD7124-8BCPZ-RL7 - 24-Bit 8/15-Ch Sigma-Delta ADC | ADI
The Analog Devices AD7124-8BCPZ-RL7 is a low-power, low-noise, completely integrated analog front end for high-precision measurement applications, delivering 24-bit sigma-delta conversion with up to 8 differential or 15 single-ended/pseudo-differential input channels. Housed in a 32-lead LFCSP (5 mm x 5 mm) package, the device integrates a precision low-noise bandgap reference, a programmable gain amplifier (PGA), and an output data rate up to 19.2 kSPS, making it well suited for direct interfacing with strain gauges, RTDs, thermocouples, and other low-level sensor bridges. An ADC (Analog-to-Digital Converter) is a data-converter integrated circuit that translates a continuous analog voltage or current into a discrete digital code; the sigma-delta topology used here oversamples the input at a high modulator rate and uses digital filtering to push quantization noise out of the signal band, yielding excellent effective resolution at low update rates. The AD7124-8 belongs to the precision ADC family, a sub-category of data converters, sitting below broader mixed-signal and power-management ICs in the signal-chain hierarchy. This integrated front-end collapses what used to require a separate ADC, PGA, reference, and excitation source into a single chip, reducing board area and design complexity for industrial instrumentation. Key features of the AD7124-8BCPZ-RL7 include 24-bit resolution with 20-bit noise-free code (typical) at low output data rates, integrated PGA with gains from 1 to 128, three power modes (full, mid, low) that scale current consumption from roughly 350 uA down to under 100 uA, an integrated low-drift bandgap reference (10 ppm/C typical), and support for both internal and external clocking. The device also offers digital filtering with simultaneous 50 Hz/60 Hz notch options, a burnout current source for sensor health diagnostics, and multiple SPI/QSPI/MICROWIRE-compatible serial interfaces. Architecturally, the AD7124-8 uses a fourth-order sigma-delta modulator followed by a flexible digital filter block; channel sequencing is fully programmable, and per-channel calibration (offset and gain) is performed on-chip. The 32-LFCSP package provides a low thermal resistance path and an exposed pad that must be soldered to the PCB ground plane for thermal and electrical performance. Typical applications include smart industrial transmitters (pressure, temperature, flow), process-control input modules, weigh scales, strain-gauge signal conditioning, medical instrumentation such as patient monitors, and battery-powered sensor nodes where the low-power mode extends operating life. The wide supply range (2.7 V to 3.6 V analog, 1.65 V to 3.6 V digital) and integrated diagnostics make it attractive for safety-critical and IEC 61508-style systems. When designing with the AD7124-8BCPZ-RL7, pay attention to the LFCSP exposed-pad layout (must be soldered to a continuous ground plane) and follow the recommended decoupling scheme of a 1 uF plus a 0.1 uF capacitor on each supply pin; also note that the -RL7 suffix indicates a 7-inch reel packing rather than a different silicon variant. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer datasheet page.
AD7172-2BRUZ - 24-Bit Sigma-Delta ADC | Analog Devices
The AD7172-2BRUZ is a low power, 24-bit, 31.25 kSPS, sigma-delta analog-to-digital converter (ADC) from Analog Devices. It features true rail-to-rail analog and reference input buffers, integrated digital filtering, and a flexible SPI interface. The device operates from a 2.5 V to 5.5 V supply and is available in a 24-lead TSSOP package. A sigma-delta ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution. It is ideal for precision measurement applications where low noise and high accuracy are required. The AD7172-2 belongs to the family of sigma-delta ADCs, which are widely used in industrial process control, medical instrumentation, and weigh scales. Key features include 24-bit resolution, 31.25 kSPS output data rate, 2 fully differential or 4 single-ended input channels, true rail-to-rail buffers, and a programmable digital filter. The device also offers a 50 Hz/60 Hz rejection mode, offset and gain calibration, and a 2.5 V internal reference. The integrated buffers simplify the interface to high-impedance sensors. The AD7172-2 uses a sigma-delta modulator with a digital filter that can be configured for various output data rates and settling times. The device includes a multiplexer that allows each analog input to be configured independently. The SPI interface supports read/write access to the configuration registers and conversion results. Typical applications include temperature measurement, pressure sensing, weigh scales, and industrial process control. The low power consumption and high resolution make it suitable for battery-powered and portable instruments. When designing with the AD7172-2, ensure that the reference input is properly decoupled and that the analog input signals are within the common-mode range. The device requires an external reference for best performance, such as the ADR445 or ADR444.
AD7172-2BRUZ-RL7 - 24-Bit Sigma-Delta ADC, 31.25kSPS | Analog Devices
The AD7172-2BRUZ-RL7 is a 24-bit, low-noise, low-power multiplexed sigma-delta analog-to-digital converter (ADC) from Analog Devices, designed for high-precision measurement applications. It features two fully differential or four single-ended input channels, integrated true rail-to-rail input buffers, and a maximum output data rate of 31.25 kSPS. The device operates from a 3V to 5.5V supply and communicates via a serial peripheral interface (SPI). Housed in a 24-lead TSSOP package with tape-and-reel (RL7) delivery, it is suitable for volume automated assembly in industrial and instrumentation designs. An ADC converts continuous analog signals into discrete digital values for processing by digital systems. The AD7172-2 is a sigma-delta ADC, which uses oversampling and noise shaping to achieve high resolution and excellent noise performance. It belongs to the family of precision data converters, which are essential for accurately measuring physical quantities such as temperature, pressure, and strain. The AD7172-2 integrates key analog and digital signal conditioning blocks, allowing users to configure each analog input channel individually via the SPI interface. Key features include 24-bit resolution, 31.25 kSPS maximum output data rate, and integrated true rail-to-rail buffers on both analog and reference inputs. The device offers a programmable gain amplifier (PGA) with gains of 1, 2, 4, 8, 16, 32, 64, and 128, allowing direct connection to low-level sensor outputs. It also includes a 2 ppm/°C internal reference, an internal oscillator, and a built-in temperature sensor. The ADC supports both differential and single-ended input configurations, providing flexibility for various sensor interfaces. The sigma-delta modulator and digital filter achieve high accuracy and linearity while maintaining low power consumption. The SPI interface supports 4-wire and 3-wire modes, and the device can be configured for continuous or single conversion. Integrated buffers simplify driving high-impedance inputs, reducing external component requirements. The reel packaging supports high-volume manufacturing. Typical applications include industrial process control, temperature and pressure measurement, weigh scales, medical monitoring, battery-powered instrumentation, and general-purpose data acquisition. Its low power consumption and high resolution make it ideal for portable devices. For best accuracy, the datasheet recommends low-noise references such as ADR445, ADR444, or ADR441. Proper PCB layout with separate analog and digital ground planes is essential to achieve specified performance.
AD7175-2BRUZ - 24-Bit 250kSPS Sigma-Delta ADC | Analog Devices
The AD7175-2BRUZ is a low noise, fast settling, multiplexed, 2-/4-channel (fully/pseudo differential) sigma-delta analog-to-digital converter (ADC) from Analog Devices. It delivers 24-bit resolution at a maximum output data rate of 250 kSPS, with a channel scan rate of 50 kSPS (20 µs settling) for fully settled data. The device integrates true rail-to-rail buffers on both analog inputs and external reference inputs, simplifying interface to high-impedance sources. It operates from a 2.5 V to 5.25 V AVDD supply and a 2 V to 5.5 V IOVDD supply, with a specified temperature range of -40°C to +105°C. The AD7175-2 is available in a 24-lead TSSOP package (BRUZ suffix). A sigma-delta ADC is an analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution, typically 16 to 32 bits, by trading speed for accuracy. It is ideal for low-bandwidth, high-precision measurement applications such as process control, weigh scales, and temperature monitoring. The sigma-delta architecture is part of the broader ADC family, which also includes successive approximation (SAR) and pipeline converters, each suited to different speed and resolution trade-offs. Key features of the AD7175-2 include a maximum output data rate of 250 kSPS, 20 µs settling time, and true rail-to-rail input buffers. It offers a programmable digital filter with multiple options (sinc3, sinc4, sinc5, and FIR), allowing users to optimize for noise or speed. The device also includes an internal 2.5 V reference with low drift, or can accept an external reference. It provides a 2-wire or 4-wire serial interface (SPI) and supports daisy-chaining for multiple devices. Technically, the AD7175-2 integrates key analog and digital signal conditioning blocks, allowing per-channel configuration of gain, filter, and reference. It features a 24-bit sigma-delta modulator with a 5th-order modulator, achieving excellent noise performance. The device includes a 50 Hz/60 Hz rejection mode for power line noise suppression, and a burnout current source for sensor diagnostics. It also offers a CRC error check on the SPI interface for robust data integrity. Typical applications include process control, industrial automation, weigh scales, temperature and pressure measurement, and medical instrumentation. The AD7175-2 is also suitable for high-resolution data acquisition systems where fast settling and low noise are critical. Its fast settling time makes it ideal for multiplexed systems that require rapid channel scanning without sacrificing accuracy. When designing with the AD7175-2, ensure proper decoupling of the AVDD and IOVDD supplies with 10 µF and 0.1 µF capacitors. The reference input should be bypassed with a 10 µF capacitor to ground. For best noise performance, use a low-noise external reference if the internal reference is not sufficient. The SPI interface should be kept short and shielded to avoid digital noise coupling into the analog inputs.
AD7175-2BRUZ-RL7 - 24-Bit 250kSPS Sigma-Delta ADC | Analog Devices
The AD7175-2BRUZ-RL7 is a 24-bit, 250 kSPS sigma-delta analog-to-digital converter (ADC) from Analog Devices, featuring 20 µs settling time and true rail-to-rail buffers. It is housed in a 24-lead TSSOP package and operates from a 2 V to 5.5 V analog supply and a 2 V to 5.5 V I/O supply, with a specified temperature range of -40°C to +105°C. The device supports 2 fully differential or 4 single-ended input channels, configurable per channel, and integrates key analog and digital signal conditioning blocks for flexible system design. A sigma-delta ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution (up to 24 bits) with excellent linearity and low noise. It is widely used in precision measurement, process control, and medical instrumentation where accurate conversion of slow-varying signals is critical. The AD7175-2 belongs to the ADC family within the data converter category, which is part of the broader analog signal chain in electronic systems. Key features include a maximum output data rate of 250 kSPS, 20 µs settling time for fast channel switching, and true rail-to-rail input buffers that simplify driving high-impedance sources. The device offers a configurable digital filter with 50/60 Hz rejection, ideal for industrial power-line noise suppression. It also provides a fully differential reference input, supporting low-noise references like the ADR445, ADR444, and ADR441. The AD7175-2 integrates a precision sigma-delta modulator and digital filter, achieving excellent noise performance and linearity. The per-channel configuration allows users to optimize gain, filter, and output rate for each input, enhancing flexibility in multi-channel systems. The device includes a SPI interface for communication and supports both internal and external clock options. Typical applications include process control (PLC/DCS modules) for temperature and pressure measurement, medical and scientific multichannel instrumentation, and chromatography. The fast settling time makes it suitable for multiplexed systems requiring rapid channel-to-channel updates. When designing with this ADC, ensure proper decoupling of the analog and digital supplies and use a low-noise reference to achieve specified performance. The SPI interface should be isolated if used in noisy industrial environments.
AD7175-8BCPZ - 24-Bit 250kSPS Sigma-Delta ADC | Analog Devices
The AD7175-8BCPZ is a low noise, fast settling, multiplexed, 8-/16-channel (fully/pseudo differential) sigma-delta analog-to-digital converter (ADC) from Analog Devices. It operates from a 2.5V to 5.5V analog supply and a 2V to 5.5V digital supply, with a maximum channel scan rate of 50 kSPS (20 µs) for fully settled data. The device integrates true rail-to-rail input buffers and a precision 2.5V internal reference, enabling direct connection to high-impedance sensors without external conditioning. A sigma-delta ADC is an analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution (up to 24 bits) with excellent linearity and low noise. It is ideal for low-bandwidth, high-precision measurement applications such as process control, weigh scales, and temperature monitoring. The AD7175-8 belongs to the family of precision sigma-delta ADCs, which are essential building blocks in data acquisition systems, bridging the analog sensor world to digital processing. Key features include 24-bit resolution, 250 kSPS output data rate, 8 differential or 16 single-ended inputs, and a maximum scan rate of 50 kSPS for fully settled data. The device offers 85 dB SNR at 250 kSPS and 24-bit no missing codes, with an integrated precision 2.5V reference and true rail-to-rail buffers. It also features a flexible digital filter (sinc5 + sinc1) and a 4-wire SPI interface, making it easy to interface with microcontrollers and DSPs. Technically, the AD7175-8 uses a high-performance sigma-delta modulator with a digital filter that can be configured for various output data rates and settling times. The device includes a multiplexer that allows each channel to be independently configured with its own gain, filter, and reference settings. This per-channel configurability is a key advantage for multi-sensor systems where different sensors require different signal conditioning. Typical applications include process control (PLC/DCS analog input modules), weigh scales, temperature and pressure measurement, and medical instrumentation. The device's fast settling time and high accuracy make it suitable for industrial automation and test and measurement equipment. When designing with the AD7175-8, ensure proper decoupling of the AVDD and DVDD supplies with 10 µF and 0.1 µF capacitors, and use a clean analog ground plane. The REF+ and REF- pins should be bypassed with 10 µF capacitors to minimize reference noise. For best performance, keep the analog input traces short and shielded from digital noise.
AD7175-8BCPZ-RL7 - 24-Bit Sigma-Delta ADC | Analog Devices
The AD7175-8BCPZ-RL7 is a low noise, fast settling, multiplexed, 8-/16-channel (fully/pseudo differential) sigma-delta analog-to-digital converter (ADC) from Analog Devices. It is designed for low bandwidth inputs and offers a maximum output data rate of 250 kSPS. The device integrates key analog and digital signal conditioning blocks, allowing users to configure an individual setup for each analog input channel in use. Each feature can be user selected on a per-channel basis. Integrated true rail-to-rail buffers on the analog inputs and external reference inputs provide easy-to-drive high impedance inputs. A sigma-delta ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution. It is part of the ADC family, which falls under data converters, a subset of analog-to-digital conversion in the broader category of mixed-signal ICs. Sigma-delta ADCs are known for their excellent linearity and low noise, making them ideal for precision measurement applications. Key features of the AD7175-8 include 24-bit resolution, 8 differential or 16 single-ended inputs, and a maximum output data rate of 250 kSPS. It operates from a 2.5 V to 5.5 V analog supply and a 2.3 V to 5.5 V digital supply. The device offers a programmable digital filter, allowing trade-offs between output data rate and noise. It also includes a 24-bit sigma-delta modulator, a digital filter, and a serial interface that supports SPI. The AD7175-8 is available in a 40-lead LFCSP-WQ (6x6 mm) package, which is RoHS3 compliant and has an MSL rating of 3 (168 hours). The AD7175-8 uses a high-performance sigma-delta architecture with a digital filter that can be configured for various output data rates and settling times. The device includes a multiplexer that allows up to 16 single-ended or 8 differential inputs. It also features an internal oscillator, eliminating the need for an external clock. The ADC provides a 24-bit output with a noise-free resolution of up to 24 bits at low data rates. The device is specified for operation over the industrial temperature range of -40°C to +105°C. Typical applications for the AD7175-8 include process control, industrial automation, temperature and pressure measurement, and precision data acquisition systems. Its high resolution and low noise make it suitable for applications requiring accurate measurement of slow-changing signals. The device is also used in weigh scales, medical instrumentation, and energy monitoring. When designing with the AD7175-8, it is important to provide adequate decoupling on the power supply pins and to use a clean analog ground plane. The reference inputs should be driven by a low-impedance source to maintain accuracy. The SPI interface should be isolated from noisy digital circuitry to prevent noise coupling into the analog section.
AD7176-2BRUZ - 24-Bit 250kSPS Sigma-Delta ADC | Analog Devices
The AD7176-2BRUZ is a 24-bit, 250 kSPS sigma-delta analog-to-digital converter (ADC) from Analog Devices, featuring a crosspoint multiplexer for 2 fully differential or 4 pseudo-differential inputs. It integrates a 2.5 V low-drift (2 ppm/°C) internal reference and offers a 20 µs settling time, making it ideal for high-resolution, high-speed data acquisition systems. The device operates from a 2.5 V to 5.5 V analog supply and a 2.3 V to 5.5 V digital interface supply, with a specified temperature range of -40°C to +105°C. It is available in a 24-lead TSSOP package (BRUZ suffix). A sigma-delta ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution (typically 16 to 24 bits) with relatively low cost and power. It is widely used in precision measurement, industrial process control, and medical instrumentation where high accuracy and low noise are critical. The AD7176-2 belongs to the Analog Devices precision ADC family, which includes other high-performance converters like the AD7175-2 and AD7177-2, and is positioned as a fast-settling, multiplexed solution for multi-channel systems. Key features of the AD7176-2BRUZ include a maximum output data rate of 250 kSPS, a 20 µs settling time for full accuracy, and a programmable digital filter with multiple filter options (sinc5 + sinc1, etc.). It offers excellent DC accuracy with an integral nonlinearity (INL) of ±2 ppm of FSR typical, and a noise-free resolution of up to 24 bits at lower data rates. The device also includes a 2.5 V internal reference with 2 ppm/°C drift, a reference buffer, and a temperature sensor. It supports both SPI and QSPI serial interfaces, and includes a GPIO and a crystal oscillator driver. Technically, the AD7176-2 uses a high-performance sigma-delta modulator with a digital filter that can be configured for various settling times and noise performance. The crosspoint multiplexer allows flexible input routing, enabling the measurement of multiple sensors without external muxing. The device also features a 50 Hz/60 Hz rejection mode for power-line noise suppression, and a burnout current source for sensor fault detection. The internal reference can be bypassed for external reference use, and the device supports both unipolar and bipolar input ranges. Typical applications include process control, industrial automation, weigh scales, temperature and pressure measurement, and medical instrumentation. The fast settling time makes it suitable for multiplexed systems where multiple channels need to be scanned quickly. The low noise and high accuracy also make it ideal for precision data acquisition in laboratory and test equipment. When designing with the AD7176-2BRUZ, ensure proper decoupling of the AVDD and DVDD supplies with 10 µF and 0.1 µF capacitors, and use a clean analog ground plane. The reference input should be bypassed with a 10 µF capacitor if using the internal reference. For best performance, keep the analog input traces short and shielded, and avoid routing digital signals near the analog inputs.
AD7177-2 - 32-bit 10 kSPS Sigma-Delta ADC | Analog Devices
The Analog Devices AD7177-2 is a 32-bit, low-noise, fast-settling, multiplexed 2-/4-channel (fully/pseudo differential) sigma-delta analog-to-digital converter with integrated true rail-to-rail analog input buffers. It achieves 10 kSPS/channel with 100 µs settling time and delivers up to 19.1 noise-free bits at 10 kSPS, housed in a 24-pin TSSOP package. The part operates from a single 2.5 V to 5.5 V AVDD supply with a separate IOVDD for digital interfacing. A sigma-delta ADC is a high-resolution oversampling converter that uses a modulator and digital filter to exchange conversion speed for noise performance. The AD7177-2 belongs to the precision ADC family, which sits within the data converter hierarchy (ADC -> data converter -> mixed-signal IC -> semiconductor). It is engineered for low-frequency, high-precision DC measurements rather than high-speed waveform digitization. Key features include integrated true rail-to-rail input buffers that eliminate external signal conditioning, a flexible channel sequencer, per-channel offset and gain correction registers, and a buffered reference input capable of handling up to AVDD - 1.5 V reference voltages. The digital interface is a simple SPI-/QSPI-/MICROWIRE-/DSP-compatible serial port, simplifying FPGA or microcontroller integration. The architecture combines a third-order sigma-delta modulator with a programmable digital filter (sinc5+sinc1 or sinc3) for the optimal trade-off between noise, settling, and 50 Hz/60 Hz rejection. The integrated buffers preserve true rail-to-rail input range and allow the device to handle large common-mode or unipolar input swings directly from sensors or front-end signal chains. Typical applications include precision weighing scales, strain-gauge bridges, industrial process control (4-20 mA loop or thermocouple digitization), medical instrumentation such as ECG and patient monitoring, chromatography and gas analysis front ends, and high-accuracy temperature measurement with PT100/RTD sensors. The 24-pin TSSOP package and integrated reference input buffer reduce external BOM, enabling compact multi-channel precision front ends. Designers should select the AVDD supply decoupling network (typically 10 µF + 0.1 µF) and ensure the reference input bypass capacitor is placed within 5 mm of the REF+ pin to achieve datasheet noise performance. Avoid routing digital lines directly beneath analog traces to prevent digital switching noise coupling into the modulator. This page combines official Analog Devices datasheet specifications with drop-in alternative guidance, distributor pricing tiers, and design notes not collated in a single manufacturer PDF, providing a synthesized reference for engineer evaluation and BOM selection.
AD7177-2BRUZ - 32-Bit Sigma-Delta ADC 10kSPS | Analog Devices
The AD7177-2BRUZ is a high-performance, 32-bit sigma-delta analog-to-digital converter (ADC) from Analog Devices, delivering a maximum output data rate of 10 kSPS in a 24-lead TSSOP package. It integrates true rail-to-rail input buffers and a low-noise, low-drift internal reference source for precision measurement systems. An ADC (analog-to-digital converter) is a device that converts continuous analog signals into discrete digital numbers for digital processing. The AD7177-2 is a sigma-delta ADC, which uses oversampling and digital noise shaping to achieve very high resolution. Within the data-converter hierarchy it occupies the high-resolution, low-speed end, complementing faster SAR ADCs, and belongs to Analog Devices' AD717x precision ADC family optimized for low-speed, high-accuracy acquisition of physical quantities such as temperature, pressure, and strain. Key features include 32-bit resolution, a 10 kSPS output data rate, 100 us settling time for fast channel switching, and true rail-to-rail buffers on both analog and reference inputs, providing easy-to-drive high-impedance inputs. It operates from a 2.5 V to 5.5 V supply and offers a flexible SPI-compatible serial interface for microcontrollers and DSPs. Two fully differential or four pseudo-differential input channels are supported, each with independently configurable setup. Technically, the AD7177-2 employs a sigma-delta modulator with programmable digital filters, achieving extremely low noise. An integrated low-drift reference and internal oscillator reduce external component count. Per-channel configuration allows different gains, filter types, and reference selections per input, while built-in diagnostics continuously monitor supply and reference integrity for reliable operation in safety-conscious systems. Typical applications include process control, industrial automation, weigh scales, temperature and pressure measurement, and medical instrumentation, where the 32-bit noise-free resolution and fast 100 us settling enable efficient multiplexed data acquisition. When designing with the AD7177-2BRUZ, properly decouple AVDD and DVDD, use a clean analog ground plane, and drive the reference inputs from a low-impedance source; isolate the SPI bus in noisy environments to prevent digital noise coupling.
AD7177-2BRUZ-RL7 - 32-Bit Sigma-Delta ADC | Analog Devices
The AD7177-2BRUZ-RL7 is a 32-bit, low noise, fast settling, multiplexed, 2-/4-channel (fully/pseudo differential) sigma-delta analog-to-digital converter (ADC) from Analog Devices. It is designed for low bandwidth inputs and offers a maximum channel scan rate of 10 kSPS (100 µs) for fully settled data. The output data rates range from 5 SPS to 10 kSPS, and it integrates key analog and digital signal conditioning blocks to allow users to configure an individual setup for each analog input channel in use. The device is available in a 24-lead TSSOP package and operates over the industrial temperature range. A sigma-delta ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution. It is part of the data converter family, which includes successive approximation register (SAR) ADCs and pipeline ADCs. Sigma-delta ADCs are known for their excellent linearity and low noise, making them ideal for precision measurement applications. The AD7177-2 is a high-performance member of this family, offering 32-bit resolution and fast settling, which is particularly useful in multiplexed systems where multiple channels need to be scanned quickly. Key features of the AD7177-2 include integrated true rail-to-rail buffers on the analog inputs and external reference inputs, providing easy-to-drive high impedance inputs. It also offers 85 dB filter rejection of 50 Hz and 60 Hz with 50 ms settling, making it suitable for industrial power line noise environments. The device supports a fully differential reference input applied through the REF+ and REF− pins, and standard low noise, low drift voltage references such as the ADR445, ADR444, and ADR441 are recommended. The AD7177-2 uses a sigma-delta modulator with a digital filter, achieving high resolution and low noise. The device includes a multiplexer, buffer, and programmable gain amplifier (PGA) on-chip, simplifying the signal chain. The digital filter can be configured for various output data rates and settling times, allowing trade-offs between speed and noise performance. The device also features a serial peripheral interface (SPI) for communication with microcontrollers or DSPs. Typical applications include process control, industrial automation, medical instrumentation, and precision measurement systems. The AD7177-2 is particularly well-suited for applications requiring high resolution and fast channel scanning, such as data acquisition systems and weigh scales. Its low noise performance and fast settling make it ideal for multiplexed sensor arrays. When designing with the AD7177-2, it is important to provide a clean, low-noise power supply and a stable reference voltage. The analog and digital supplies should be decoupled with appropriate capacitors, and the reference inputs should be driven by a low-impedance source. The SPI interface should be properly terminated to avoid signal integrity issues.
AD7177-2SDZ - 32-Bit 10kSPS Sigma-Delta ADC Eval Board | ADI
The Analog Devices AD7177-2SDZ is an evaluation kit built around the AD7177-2, a 32-bit, 10 kSPS sigma-delta analog-to-digital converter with integrated true rail-to-rail analog input buffers and a fast 100 microsecond settling time, mounted on a fully assembled PCB that ships with a 7 V to 9 V AC-to-DC adapter regulated to 5 V and 3.3 V supplies. An evaluation board (EVAL-AD7177-2SDZ) is a development tool used to characterize a data-converter IC under real-world conditions; it exposes the converter's analog inputs, reference inputs, power rails, and digital serial interface on test points and screw terminals so engineers can run the part through its full input range without designing a custom PCB. Evaluation kits therefore sit one level below reference designs in the typical ADC design hierarchy: bare silicon -> evaluation board -> customer reference design -> production PCB. The onboard AD7177-2 sigma-delta modulator delivers 32-bit resolution at up to 10 kSPS, supports both fully differential and pseudo-differential input configurations, and integrates true rail-to-rail buffers that absorb switching kickback from the modulator's input sampling capacitors. The 100 microsecond settling specification allows full-scale step response settling to within 24-bit accuracy in fewer than three conversion cycles at the highest output data rate, which is critical for multiplexed channel scanning. Typical applications include precision weigh scales, temperature measurement bridges (RTD, thermocouple with cold-junction compensation), industrial process control loops, and laboratory instrumentation. The wide input common-mode range combined with the integrated buffers removes the need for external driver amplifiers in most low-impedance sensor front-ends. When designing with this evaluation board, populate the external amplifier section footprint only when the source impedance exceeds the buffer's linear input range; for low-Z sensors leave it unpopulated. The included ADR441-class reference footprint should be used to characterize real-world noise performance against the datasheet's typical 24-bit noisefloor curves. This page synthesizes distributor pricing, drop-in alternative converters in the same LFCSP/QFN footprint, and practical bench-test design notes that are not duplicated in the manufacturer datasheet.
AD7190BRUZ - 24-Bit Sigma-Delta ADC with PGA | Analog Devices
The AD7190BRUZ is a low noise, complete analog front end for high precision measurement applications. It contains a low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC) with an on-chip low noise gain stage, enabling direct interfacing of small amplitude signals. The device operates from a 4.7 V to 5.25 V analog supply and a 2.7 V to 5.25 V digital supply, with a maximum output data rate of 4.8 kHz. It is available in a 24-lead TSSOP package, suitable for space-constrained designs. A sigma-delta ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution. It is part of the broader category of data converters, which are essential in mixed-signal systems for bridging the analog and digital domains. The AD7190's architecture provides excellent noise performance, making it ideal for precision measurement applications such as weigh scales, pressure sensors, and temperature measurement. Key features include a programmable gain amplifier (PGA) with gains of 1, 8, 64, and 128, allowing direct connection to low-level sensors. The device offers two differential or four pseudo-differential input channels, a 24-bit resolution, and a maximum output data rate of 4.8 kHz. It also includes an internal clock, a 4-wire SPI interface, and a power-down mode for low-power applications. The AD7190 uses a sigma-delta modulator with a digital filter, providing high-resolution conversion with inherent noise shaping. The on-chip PGA amplifies small signals before conversion, reducing the need for external amplification. The device also features a burnout current source for sensor fault detection and a reference detect function. Typical applications include weigh scales, strain gauge transducers, pressure measurement, temperature measurement, and industrial process control. The AD7190's low noise and high resolution make it suitable for precision instrumentation and data acquisition systems. When designing with the AD7190, ensure proper decoupling of the analog and digital supplies and use a clean reference voltage to achieve optimal performance. The SPI interface allows easy configuration of the device's registers for gain, filter, and channel selection.
AD7190BRUZ-REEL - 24-Bit Sigma-Delta ADC with PGA | Analog Devices
The AD7190BRUZ-REEL is a low noise, complete analog front end for high precision measurement applications. It contains a low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC) with an on-chip programmable gain amplifier (PGA). The device operates from a 4.75 V to 5.25 V analog supply and a 2.7 V to 5.25 V digital supply, and it is available in a 24-lead TSSOP package. The AD7190BRUZ-REEL is the tape and reel version of the AD7190BRUZ, designed for automated assembly. A sigma-delta ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution. The AD7190 is a 24-bit sigma-delta ADC, which means it can resolve very small voltage changes, making it ideal for precision measurement applications such as weigh scales, pressure sensors, and temperature measurement. The on-chip PGA allows small amplitude signals to be amplified before conversion, improving the effective resolution for low-level signals. Key features of the AD7190BRUZ-REEL include RMS noise of 4.7 Hz at gain 128, 16 noise-free bits at 2.4 kHz (gain to 22.5 noise-free bits at gain = 1), offset drift of 5 nV/°C, and gain drift of 1 ppm/°C. The device supports 2 differential or 4 pseudo-differential input channels, and it includes an automatic channel sequencer. The output data rate can be varied from 4.7 Hz to 4.8 kHz, and the on-chip 4.92 MHz clock can be used as the clock source or an external clock or crystal can be used. The AD7190BRUZ-REEL features a 3-wire serial SPI interface that is compatible with QSPI, MICROWIRE, and DSP. It includes a Schmitt trigger on SCLK for improved noise immunity. The device is qualified for automotive applications, making it suitable for harsh environments. The low noise and high resolution make it ideal for precision measurement systems. Typical applications include weigh scales, strain gauge transducers, pressure sensors, temperature measurement, and industrial process control. The AD7190BRUZ-REEL is also suitable for medical instrumentation and scientific instruments where high accuracy is required. When designing with the AD7190BRUZ-REEL, it is important to provide a clean analog supply and proper decoupling. The reference input should be bypassed with a capacitor to reduce noise. The SPI interface should be isolated from noisy digital circuits to maintain the high resolution of the ADC.
AD7190WBRUZ - 24-Bit Sigma-Delta ADC | Analog Devices
The AD7190WBRUZ is a 24-bit sigma-delta analog-to-digital converter (ADC) from Analog Devices, featuring a complete analog front end for high precision measurement applications. The device provides two differential or four pseudo-differential input channels, a programmable gain amplifier (PGA), and a maximum output data rate of 4.8 kSPS. Housed in a 24-lead TSSOP package, this ADC is designed for low noise, high resolution data acquisition in industrial and instrumentation systems. A sigma-delta ADC is a converter that uses oversampling and noise shaping to achieve very high resolution. Unlike successive-approximation ADCs, sigma-delta converters sample the input many times and apply digital filtering, which moves quantization noise out of the signal band. This makes the AD7190WBRUZ well suited for low-frequency, high-accuracy measurements such as load cells, pressure sensors, temperature transducers, and precision process control loops. As an ADC, the device sits between the analog sensor and the digital processing core in a measurement system, converting tiny analog signals into serial digital words. Key features include 24-bit no-missing-codes performance, a PGA with gain levels suitable for millivolt-level sensor outputs, and a low-noise sigma-delta architecture that minimizes error in precision bridges. The device also offers an internal clock option, simple SPI interface, and a serial read rate that supports real-time weight and pressure monitoring. The 24-lead TSSOP package is compact and facilitates dense PCB layouts. Technically, the AD7190WBRUZ integrates a chopper-stabilized amplifier and a digital filter that can be configured for different output rates and settling times. It operates from an analog supply and supports external references, enabling ratiometric measurements. The ADC continuously converts at rates up to 4.8 kSPS, making it a practical choice for weigh scale controllers and industrial transmitters. Its digital interface is compatible with microcontrollers and DSPs through standard SPI commands. Typical applications include industrial process control, high-precision weigh scales, medical monitoring equipment, and RTD/thermocouple temperature measurement. The device is also used in portable instrumentation where low power and high accuracy are required. For multi-channel systems, the input multiplexer allows configuration of two differential channels or four single-ended/pseudo-differential inputs. Designers should pay attention to the analog reference and power supplies: use low-noise references and decouple AVDD with high-quality capacitors. The PGAs sensitivity to input offsets must be calibrated during system initialization. The AD7190WBRUZ supports a wide operating temperature range, making it suitable for harsh industrial environments. When pairing with a microcontroller, connect the SPI lines (SCLK, DIN, DOUT/RDY, CS) to a fast host port to take full advantage of the 4.8 kSPS throughput.
AD7192BRUZ - 24-Bit Low-Noise Sigma-Delta ADC | Analog Devices
The Analog Devices AD7192BRUZ is a low-noise, complete analog front end with a 24-bit sigma-delta analog-to-digital converter, programmable gain from 1 to 128, and output data rates from 4.7 Hz to 4.8 kHz, housed in a 24-lead TSSOP package. It provides two differential or four pseudo-differential input channels, making it suitable for precision bridge, sensor, and low-level analog measurements. A sigma-delta ADC is a data-converter category that uses a modulator and digital filtering to provide high resolution and excellent low-frequency noise performance. The AD7192 belongs to the broader ADC family and integrates a low-noise gain stage, reference input, analog input channels, and digital interface into one measurement front end. This integration reduces external analog circuitry while preserving flexibility for precision instrumentation. The AD7192 datasheet specifies 11 nV RMS input noise at a 4.7 Hz output rate with gain 128, 15.5 noise-free bits at 2.4 kHz with gain 128, and up to 22 noise-free bits at gain 1. Offset drift is specified as 5 nV/°C, while gain drift is 1 ppm/°C. The device also supports internal or external clocking and simultaneous 50 Hz/60 Hz rejection. The AD7192BRUZ is intended for applications requiring high-resolution measurement rather than high-speed waveform capture. Its selectable gains and input arrangement support strain gauges, pressure sensors, temperature sensors, weigh systems, laboratory instruments, and industrial process monitoring. The digital interface supports programmed conversion sequencing and acquisition control, while the sigma-delta architecture emphasizes noise reduction at low output rates. Designs should provide stable reference and excitation circuitry, suitable input filtering, and decoupling close to the device pins. The low-noise input stage makes PCB layout, grounding, shielding, and protection-network design important: excessive leakage, ground currents, or poorly filtered references can degrade the measurement more than the nominal converter resolution suggests. The manufacturer datasheet is the authoritative source for electrical limits, pin functions, calibration procedures, and application recommendations. This page combines the verified manufacturer and distributor references with practical ADC selection context, comparison information, and design guidance. It also distinguishes verified data from parameters that require confirmation from the complete manufacturer datasheet.
AD7247ABRZ-REEL - Dual 12-Bit DAC | Analog Devices
The Analog Devices AD7247ABRZ-REEL is a dual 12-bit CMOS digital-to-analog converter with a 24-lead SOIC package. It provides two 12-bit DAC channels, supports operation from 12 V to 15 V supplies, and uses an on-chip 5 V reference or an external reference through the REF OUT/REF IN function. The device also includes output amplifiers and reference-buffer amplifiers, making it suitable for precision signal-generation and control applications. A DAC, or digital-to-analog converter, is an integrated circuit that converts a digital code into a proportional analog voltage or current. The AD7247A is part of the DACPORT family and uses a dual R-2R architecture with precision CMOS circuitry. In a system hierarchy, a DAC sits between digital control logic and analog output circuitry, while the AD7247ABRZ-REEL provides a compact dual-channel conversion function for instrumentation, industrial control, and test equipment. Key features include two independent 12-bit DAC channels, a 125 kS/s sampling rate, an 8 microsecond settling time, and support for single- and dual-supply operation. According to the manufacturer product information, single-supply output ranges include 0 V to 5 V and 0 V to 10 V; dual supplies add an additional plus or minus 5 V range. The SOIC-24 package supports surface-mount assembly and is supplied in tape-and-reel packaging for automated manufacturing. The AD7247A family is fabricated using Analog Devices Linear Compatible CMOS, or LC2MOS, technology. LC2MOS combines precision bipolar circuit techniques with low-power CMOS logic, helping support accurate digital-to-analog conversion in a single integrated device. The AD7247ABRZ-REEL is identified in distributor listings as a 24-pin, 12-bit, dual DAC and is categorized as a SOIC industrial-grade component with an operating temperature range of -40 °C to +85 °C. Typical uses include programmable voltage sources, industrial process-control outputs, laboratory instrumentation, data-acquisition systems, and precision analog signal generation. Because the converter has two channels, it can drive paired analog outputs from a shared digital control system. The external-reference option allows designers to improve stability or scale the output range when the application requires independent reference control. Designers should verify the supply rails, reference configuration, output range, settling requirements, and digital-interface timing against the AD7247A datasheet. Decoupling capacitors should be placed close to the supply pins, and the analog output routing should be kept separate from fast digital switching paths. The manufacturer documentation also confirms that the family is available in 24-pin plastic and hermetic DIP packages and 24-lead SOIC packages. This page combines verified manufacturer and distributor information with package-specific comparison, selection guidance, and practical design notes. It is intended to help engineers identify whether the AD7247ABRZ-REEL matches the required resolution, channel count, supply arrangement, package, and precision application.