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AD7988-5BCPZ - 16-Bit 500kSPS SAR ADC | Analog Devices
AD7988-5BCPZ

AD7988-5BCPZ - 16-Bit 500kSPS SAR ADC | Analog Devices

The AD7988-5BCPZ is a 16-bit, successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices, offering a 500 kSPS throughput. It operates from a single power supply, VDD, and features a versatile serial interface port that is SPI-, QSPI-, MICROWIRE-, and DSP-compatible. The device is housed in a 10-lead LFCSP-WD (3x3 mm) package and is specified for operation from -40°C to +125°C. An ADC (analog-to-digital converter) is an electronic component that converts continuous analog signals into discrete digital numbers, enabling digital systems to process real-world signals. SAR ADCs use a binary search algorithm to determine the digital output, offering a good balance of speed, resolution, and power consumption. The AD7988-5 is part of the SAR ADC family, which is widely used in data acquisition systems, industrial process control, and medical instrumentation. Key features of the AD7988-5 include ultra-low power consumption, making it suitable for battery-powered and portable applications. It supports a wide logic interface range from 1.8 V to 5 V via the separate VIO supply, allowing direct connection to various microcontrollers and DSPs. The device also supports daisy-chaining multiple ADCs on a single 3-wire bus using the SDI input, simplifying system design and reducing pin count. The AD7988-5 uses a successive approximation architecture with an internal capacitive DAC, providing high accuracy and low noise. It includes a track-and-hold circuit that captures the input signal, and the conversion result is output serially. The device features a power-down mode to reduce current consumption between conversions, further enhancing its efficiency in duty-cycled applications. Typical applications include battery-powered instrumentation, portable medical devices, data acquisition systems, and industrial process control. Its high throughput and low power make it ideal for applications requiring continuous monitoring of multiple channels, such as multi-channel data loggers and portable analyzers. When designing with the AD7988-5, ensure that the reference voltage is stable and well-decoupled, as it directly affects conversion accuracy. The analog input should be driven by a low-impedance source to avoid sampling errors, and proper PCB layout with separate analog and digital grounds is recommended to minimize noise.

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AD7992BRMZ-1-R2 - 12-Bit 2-Ch SAR ADC, I2C, 10-MSOP | Analog Devices
AD7992BRMZ-1-R2

AD7992BRMZ-1-R2 - 12-Bit 2-Ch SAR ADC, I2C, 10-MSOP | Analog Devices

The Analog Devices AD7992BRMZ-1-R2 is a 12-bit, 2-channel successive-approximation analog-to-digital converter (SAR ADC) with an I2C-compatible serial interface, housed in a 10-pin MSOP (RM-10) package. It operates from a single 2.7 V to 5.5 V supply, supports up to 2 I2C addresses, and offers a 2 us conversion time per channel. The -1 variant supports standard, fast, and high-speed I2C modes (up to 3.4 MHz), and ships on a 250-piece reel (suffix -R2). An ADC (analog-to-digital converter) is a data-acquisition IC that samples continuous analog signals and translates them into discrete digital codes for downstream processors, microcontrollers, or FPGAs. SAR ADCs use a successive-approximation register and an internal DAC to perform one bit per clock cycle, achieving deterministic latency that is ideal for multiplexed multi-channel systems. The AD7992 belongs to the broader data-converter hierarchy: ADC -> data converter -> signal chain IC -> mixed-signal semiconductor, sitting between the analog sensor front end and the digital host. Key features include a 2-channel input multiplexer with track-and-hold, an external reference input from 1.2 V to VDD for maximum dynamic range, automatic or command-driven conversion modes controlled via the CONVST pin or the I2C bus, and a wide operating temperature range of -40C to +125C. The device consumes only a few milliwatts in operation and provides excellent DC accuracy for its class. Typical applications include system monitoring and battery-cell monitoring in portable equipment, transducer/sensor signal acquisition, process-control loop read-back, and digital-system analog housekeeping (supply rails, temperature, current). The small 10-MSOP footprint, low power, and I2C connectivity make it a strong fit for space-constrained, multi-rail designs. When designing with the AD7992BRMZ-1-R2, choose the external reference carefully - the input range scales with VREF, so a 5 V reference allows true 0-5 V single-ended or pseudo-differential sensing without external dividers. Decouple VDD with a 0.1 uF ceramic placed within 5 mm of the pin and keep analog/digital grounds joined at a single star point. Pull-up resistors on SDA/SCL must be sized for the chosen I2C speed (4.7 kohm at 400 kHz, 1 kohm at 3.4 MHz). This page consolidates distributor pricing from DigiKey, Mouser, and Octopart, drop-in alternatives that share the 10-MSOP footprint, and practical design notes not included in the manufacturer datasheet.

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AD7993BRU-0REEL - 10-Bit 4-CH SAR ADC, I2C, 16-TSSOP
AD7993BRU-0REEL

AD7993BRU-0REEL - 10-Bit 4-CH SAR ADC, I2C, 16-TSSOP

The Analog Devices AD7993BRU-0REEL is a 4-channel, 10-bit, successive-approximation analog-to-digital converter (SAR ADC) that operates from a single 2.7 V to 5.5 V supply and achieves up to 188 kSPS throughput with a typical 2 us conversion time, housed in a 16-lead TSSOP package delivered on tape-and-reel. A SAR ADC is a class of analog-to-digital converter that uses a binary-search successive-approximation register to convert an input sample in N clock cycles for N bits of resolution. SAR ADCs occupy the middle ground between flash ADCs (fast, power-hungry, low resolution) and sigma-delta ADCs (high resolution, slow). They are the workhorse choice for general-purpose data acquisition, sensor readout, and microcontroller/microprocessor monitoring rails where both speed and resolution matter. The AD7993 specifically integrates a four-input multiplexer and track-and-hold amplifier, allowing four analog sources to share one ADC, reducing both BOM cost and PCB area. Key features include four single-ended analog input channels, an I2C-compatible two-wire serial interface (standard, fast, and high-speed modes), 188 kSPS throughput, automatic sequencer operation, a hardware/software shutdown mode, and an automatic cycle interval timer. The wide 2.7 V to 5.5 V supply range permits direct interfacing to both 3.3 V microcontrollers and 5 V legacy systems. Low power consumption makes the part well-suited to battery-aware designs. Architecturally, the AD7993 uses a charge-redistribution DAC core combined with an on-chip input track-and-hold rated for input bandwidths up to 11 MHz. The integrated input multiplexer supports both sequential and per-conversion channel selection. The I2C address is partially hardware-configurable, allowing up to three AD7993s on a single bus. The sequencer can also be set to cycle automatically across all four inputs. Typical applications include system monitoring (board-level voltage, current, and temperature supervision), portable instrumentation, battery-powered sensor readout, multi-cell battery monitoring, and process-control front-ends. The TSSOP-16 footprint drops onto a small footprint that is easy to lay out next to a microcontroller. The wide supply range avoids the need for level shifters on most 5 V analog rails. When designing with this part, ensure that the I2C bus pull-ups match the chosen speed mode (4.7 kohm for standard, lower for fast/high-speed) and that the reference voltage (VDD) is well decoupled with a 10 nF + 1 uF capacitor pair to limit conversion noise. The shutdown current is sub-microamp, so it is safe to leave the ADC off during long idle periods.

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AD7994BRU-0REEL - 4-Ch 12-Bit 188kSPS SAR ADC I2C 16-TSSOP
AD7994BRU-0REEL

AD7994BRU-0REEL - 4-Ch 12-Bit 188kSPS SAR ADC I2C 16-TSSOP

The Analog Devices AD7994BRU-0REEL is a 4-channel, 12-bit successive approximation register (SAR) analog-to-digital converter with an I2C-compatible serial interface, housed in a 16-pin TSSOP package and supplied on a 7-inch reel. A SAR ADC is a type of data converter that performs a binary search through successive approximations against a precision DAC to digitize an analog input, achieving an excellent balance between speed, accuracy, and power consumption for mid-rate applications. Within the broader signal chain hierarchy, the AD7994 sits between the analog front-end (sensors, op-amps, muxes) and the digital controller (microcontroller, FPGA, ASIC), functioning as a power-management-aware mixed-signal IC. ADCs in the 10-12 bit, 100kSPS-1MSPS class are the workhorse of industrial monitoring, portable instrumentation, and embedded sensor readback. Key features of the AD7994BRU-0REEL include a 188 kSPS throughput rate, a 2 microsecond typical conversion time, single 2.7 V to 5.5 V supply operation, and four single-ended analog input channels with a track-and-hold amplifier that supports input bandwidths up to 11 MHz. The device also provides an automatic cycle mode for sequential channel scanning, pin-selectable I2C addressing via the AS pin for bus sharing, and an automatic shutdown mode that reduces supply current to a typical 1 microamp between conversions. Technically, the AD7994 uses a charge-redistribution SAR core with an internal clock derived from the I2C SCL line, eliminating the need for an external crystal or oscillator. The integrated 4-channel analog multiplexer and track-and-hold block allow ratiometric or absolute measurements against VDD, and the wide input bandwidth preserves transient integrity for multiplexed signals. Typical applications include battery monitoring in portable equipment, sensor array reading in industrial control, panel meters and instrumentation, and digital system monitoring of temperature, pressure, or supply rails. Compact 16-lead TSSOP packaging keeps the part footprint compatible with space-constrained designs. When designing with this part, observe the I2C address-scheme strategy (AS pin logic level) to avoid bus conflicts when multiple AD799x devices share the same controller. Decouple VDD with a 0.1 microfarad ceramic capacitor placed as close as possible to the supply pin, and keep analog traces short and guarded by the AGND pin to minimize digital coupling into the conversion result. This page synthesizes distributor pricing, cross-brand drop-in alternatives, and practical design notes that are not collected in the bare manufacturer datasheet.

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AD7995YRMZ-0 - 10-Bit SAR ADC, 4-Channel I2C | Analog Devices
AD7995YRMZ-0

AD7995YRMZ-0 - 10-Bit SAR ADC, 4-Channel I2C | Analog Devices

The Analog Devices AD7995YRMZ-0 is a 10-bit, low-power, successive approximation (SAR) analog-to-digital converter with an I2C-compatible serial interface, housed in an 8-pin MSOP package. It offers 3 or 4 analog input channels (one input pin doubles as an external reference), 1 µs typical conversion time, and operates from a single 2.7 V to 5.5 V supply. The -0 suffix denotes the specific I2C address variant and the YRMZ industrial/automotive temperature range (-40 °C to +125 °C). A successive approximation ADC (SAR ADC) is a type of analog-to-digital converter that uses a binary search algorithm through an internal DAC to converge on the input voltage in N clock cycles for N-bit resolution. SAR ADCs sit in the data-converter hierarchy under analog-to-digital converters, which themselves belong to the broader mixed-signal / data acquisition IC family. They are favored for their deterministic latency, low power consumption, and ease of use in multiplexed multi-channel applications. The AD7995YRMZ-0 features an integrated track-and-hold amplifier, automatic channel sequencing, and an I2C-compatible interface supporting standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz) modes. With an analog input range of 0 V to VDD, low current consumption, and a small MSOP-8 footprint, it is well suited for space-constrained battery-powered monitoring. Its specified VDD maximum of 5.5 V makes it compatible with both 3.3 V and 5 V system rails. Typical applications include automotive sensor monitoring (battery management, temperature, pressure), portable instrumentation, system supervision and housekeeping ADCs in micro-controller-based designs, multi-zone thermal monitoring, and industrial process control. The wide operating temperature range also makes it appropriate for outdoor or automotive-grade installations. When designing with this part, place the decoupling capacitor (typically 100 nF) as close as possible to the VDD pin and observe the I2C address-selection convention used by the -0 suffix. The conversion result register must be read before the next conversion completes to avoid data loss in continuous-conversion mode.

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AD805BN - 155 Mbps Data Retiming PLL | Analog Devices
AD805BN

AD805BN - 155 Mbps Data Retiming PLL | Analog Devices

The Analog Devices AD805BN is a data-retiming phase-locked loop clock and data recovery IC for NRZ links operating up to 155 Mbps. It provides one true and one inverted clock output, 30-bit-period acquisition behavior, and is packaged in a 20-pin plastic DIP. According to the AD805BN datasheet summary, random jitter is 0.6 rms, pattern jitter is virtually eliminated, and jitter peaking is fundamentally absent. A data-retiming PLL belongs to the clock-and-timing IC hierarchy, where phase-locked loops synchronize a local oscillator to an incoming data stream and retime data against a recovered clock. The AD805BN is intended to work with a Voltage-Controlled Crystal Oscillator (VCXO), allowing an external oscillator to provide the timing reference needed by high-speed telecom or storage links. Its retiming function aligns incoming NRZ data with a recovered clock instead of merely passing data through unchanged. The principal verified feature set includes 155 Mbps clock recovery and data retiming, CCITT G.958 Type A jitter tolerance, CCITT G.958 Type B jitter transfer, 0.6 rms random jitter, virtually eliminated pattern jitter, and fundamentally no jitter peaking. Acquisition is specified as 30 bit periods. Distributor listings identify the device as a PLL-based clock driver with one true output and one inverted output in PDIP-20 packaging. Typical uses include telecom backplane clock recovery, high-speed serial-interface retiming, digital transmission equipment, and NRZ-based clock-recovery circuits where deterministic data timing is required. The AD805BN is not a general-purpose buffer or regulator; its design must be evaluated against the link rate, oscillator behavior, loop bandwidth, and timing budget of the complete system. Using a VCXO with the correct frequency range and control polarity is central to achieving stable lock in practical designs. The main design consideration is to validate loop dynamics at the actual line rate and data pattern. The PLL must receive clean reference timing, while input and output interfaces require suitable termination and controlled-impedance routing. Because the provided data does not include complete voltage, supply-current, temperature, pinout, or absolute timing tables, those parameters remain marked as data needed rather than inferred. This product page consolidates verified source snippets, application context, and engineering guidance while distinguishing confirmed AD805BN facts from parameters that require the complete manufacturer datasheet. Pricing, stock, lifecycle status, and package details should be reconfirmed with the linked suppliers before production procurement.

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AD809BR - 155.52MHz Clock Synthesizer | Analog Devices
AD809BR

AD809BR - 155.52MHz Clock Synthesizer | Analog Devices

The Analog Devices AD809BR is a 155.52 MHz clock synthesizer with a 19.44 MHz or 9.72 MHz TTL/CMOS/ECL/PECL reference input, ECL/PECL output compatibility, and a surface-mount SOIC-16 package. According to the manufacturer product page, it supports distributed timing architectures in which one reference is shared across multiple 155.52 Mbps ports. A frequency synthesizer generates or reconstructs a stable high-frequency clock from a lower-frequency reference. Clock generators and frequency synthesizers form part of the broader clock and timing IC category, where phase relationship, jitter, output logic standards, and reference stability determine system-level timing performance. The AD809BR targets telecommunications transport systems operating at the 155.52 Mbps line rate. Its key verified features include synthesis from 9.72 MHz or 19.44 MHz references, selectable input-reference routing through a multiplexer, 2.0 degrees RMS output jitter, and a 10 kHz ECL/PECL-compatible output. The input accepts ECL, PECL, TTL, or CMOS signals, allowing the device to integrate with several source-interface families. The verified data also identifies single-supply operation at approximately 5.2 V and a 16-pin SOIC package. The AD809BR uses frequency multiplication rather than a simple buffered-clock architecture. Its reference mux permits one device to select between two reference inputs before generating the 155.52 MHz transmit clock. This makes it useful in systems that need redundant references, switching between timing sources, or distributing a common transport clock to multiple ports while preserving a defined relationship to the selected reference. Typical uses include SONET/SDH telecommunications line cards, 155.52 Mbps transmit-clock generation, backplane timing distribution, and multiport network-interface equipment. In these systems, the AD809BR can convert a 9.72 MHz or 19.44 MHz source into the required 155.52 MHz ECL/PECL clock. Output jitter is particularly relevant because accumulated timing uncertainty can affect line-interface margin. When designing a board around the AD809BR, preserve short, controlled-clock paths and validate ECL/PECL termination, supply decoupling, reference jitter, and return current continuity. Input muxing and output-enable behavior must also be checked against the system timing state machine. The verified snippets do not provide the complete pin table, absolute limits, or reference-input sensitivity, so those values must be taken directly from the manufacturer datasheet. This page consolidates the verified 155.52 MHz synthesis, supported logic standards, jitter, packaging, and source links while separating documented data from unavailable details. It also distinguishes a genuine timing function from generic buffer replacements and highlights what must be verified before any substitution is approved.

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AD811ANZ - 120MHz High-Speed Video Op Amp | Analog Devices
AD811ANZ

AD811ANZ - 120MHz High-Speed Video Op Amp | Analog Devices

The Analog Devices AD811ANZ is a single wideband current-feedback operational amplifier optimized for broadcast-quality video systems, featuring 120 MHz -3 dB bandwidth at +2 gain and 2500 V/µs slew rate in an 8-pin PDIP package. A current-feedback operational amplifier is a voltage-feedback amplifier variant that obtains its feedback signal through a low-impedance inverting input. Its bandwidth and stability behavior are strongly shaped by the feedback resistor, making it well suited to high-speed video, graphics, and broadcast signal chains. Within the broader hierarchy, the AD811 is an analog amplifier IC, an operational amplifier, and specifically a current-feedback video amplifier. The AD811ANZ combines a 120 MHz -3 dB bandwidth at +2 gain with differential gain and phase performance of 0.01% and 0.01° when loaded by 150 ohms. Its 2500 V/µs slew rate supports large-amplitude video transitions. Gain flatness is specified to 0.1 dB through 35 MHz at +2 gain, making these characteristics useful in broadcast, professional video, and other wideband signal-processing equipment. The manufacturer describes the device as a high-performance video operational amplifier intended for broadcast-quality systems. Its current-feedback architecture can provide high bandwidth without relying on a conventional closed-loop gain response like voltage-feedback amplifiers. Designers must nevertheless follow the recommended feedback resistor and gain configuration because excessive or mismatched feedback resistance can alter bandwidth, gain accuracy, and stability. Typical applications include broadcast video distribution, video monitoring, professional video test equipment, camera signal chains, RGB or component-video amplification, and high-speed analog signal conditioning. The AD811 is most appropriate where wide bandwidth, high slew rate, and low gain-and-phase distortion matter more than low quiescent current or micropower operation. For new layouts, place the device close to the signal source and destination, use short, controlled-impedance analog traces, and bypass the supply pins with local high-frequency decoupling. The 8-pin PDIP package is through-hole and not the smallest option, but it can simplify prototyping and repair. Confirm the exact pinout, supply limits, resistor values, and output-load constraints against the Analog Devices AD811 datasheet before production release. This page consolidates manufacturer specifications, verified distributor availability, package details, and engineering-oriented design guidance. It also separates verified facts from unavailable data so that engineers can make a defensible selection for high-speed video and analog signal-chain designs.

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AD811SQ/883B - 120MHz Video Op Amp | Analog Devices | 8-CERDIP
AD811SQ/883B

AD811SQ/883B - 120MHz Video Op Amp | Analog Devices | 8-CERDIP

The AD811SQ/883B is a high-performance video operational amplifier from Analog Devices, designed for broadcast-quality video systems. It features a -3 dB bandwidth of 120 MHz at a gain of +2, with differential gain and phase of 0.01% and 0.01° (RL = 150 Ω). The device is packaged in an 8-pin CERDIP (SQ) package and is qualified to MIL-STD-883 Class B, making it suitable for military and aerospace applications. A video operational amplifier is a type of op amp optimized for processing video signals, providing wide bandwidth, high slew rate, and low differential gain/phase errors. It is a subset of operational amplifiers, which are fundamental building blocks in analog signal processing. The AD811SQ/883B belongs to the category of current feedback amplifiers, which offer superior slew rate and bandwidth at higher gains compared to voltage feedback amplifiers. Key features include a 0.1 dB gain flatness to 35 MHz (G = +2), a slew rate of 2500 V/μs, and a supply current of 16.5 mA. The device operates from dual supplies of ±4.5 V to ±18 V, with an output current of 100 mA. Its high bandwidth and low distortion make it ideal for video distribution, cable drivers, and professional video equipment. The AD811SQ/883B uses a current feedback architecture, which provides excellent large-signal bandwidth and fast settling time. The device is designed to drive 150 Ω loads, typical for video cables, and maintains low differential gain and phase errors, ensuring accurate color reproduction in video signals. The MIL-STD-883B qualification ensures high reliability in harsh environments. Typical applications include video line drivers, RGB distribution amplifiers, and professional video cameras. The device is also used in military avionics displays and radar systems where high-speed analog signal processing is required. Its wide supply range and robust design make it suitable for both commercial and military-grade equipment. When designing with the AD811SQ/883B, ensure proper power supply decoupling with 0.1 μF ceramic capacitors close to the supply pins. The device's high bandwidth requires careful PCB layout to minimize parasitic capacitance and inductance, which can degrade performance. Additionally, the output stage can drive capacitive loads, but a series resistor may be needed to maintain stability.

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AD820ARZ - Single-Supply FET Op Amp | Analog Devices
AD820ARZ

AD820ARZ - Single-Supply FET Op Amp | Analog Devices

The AD820ARZ is a precision, low power, FET input operational amplifier from Analog Devices, offered in an 8-lead SOIC package. It operates from a single supply of 5 V to 36 V or dual supplies of ±2.5 V to ±18 V, with true single-supply capability and an input voltage range extending below the negative rail. This rail-to-rail output amplifier delivers a gain bandwidth of 1.9 MHz and a slew rate of 3 V/µs, making it suitable for a wide range of precision analog applications. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, used in signal conditioning, filtering, and mathematical operations. The AD820 belongs to the FET-input op amp family, which uses junction field-effect transistors (JFETs) at the input stage to achieve very high input impedance and low input bias current. This makes it ideal for interfacing with high-impedance sensors and sources without loading them. As a rail-to-rail output device, it can swing its output close to both supply rails, maximizing dynamic range in single-supply systems. Key features of the AD820ARZ include a low input bias current of 2 pA (typical), low offset voltage of 100 µV (typical), and a supply current of 700 µA per amplifier. It also features a wide input common-mode range that includes the negative rail, enabling it to sense signals near ground in single-supply operation. The device is specified over the industrial temperature range of -40°C to +85°C and is RoHS compliant. Technically, the AD820 uses a precision bipolar/JFET process, combining the low noise and high speed of bipolar transistors with the high input impedance of JFETs. The output stage is a rail-to-rail class AB design that provides low distortion and high output drive capability. The amplifier is internally compensated for unity-gain stability, simplifying its use in buffer and follower configurations. Typical applications include battery-powered instrumentation, portable medical devices, sensor signal conditioning, and active filters. Its low power consumption and wide supply range make it particularly suited for portable and industrial equipment where power efficiency and signal integrity are critical. When designing with the AD820ARZ, ensure proper decoupling of the supply pins with 0.1 µF ceramic capacitors placed close to the device. For best performance, avoid routing high-impedance inputs near noisy traces, and consider using a ground plane to minimize noise pickup.

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AD8221ARZ - Precision Instrumentation Amplifier | Analog Devices
AD8221ARZ

AD8221ARZ - Precision Instrumentation Amplifier | Analog Devices

The AD8221ARZ is a precision instrumentation amplifier from Analog Devices, offering the industry's highest common-mode rejection ratio (CMRR) over frequency in its class. It is a gain-programmable, high-performance amplifier that maintains excellent CMRR beyond 200 Hz, where competing instrumentation amplifiers typically degrade. The device is available in an 8-lead SOIC package and operates over a wide supply range, making it suitable for a variety of precision measurement applications. An instrumentation amplifier is a type of differential amplifier that amplifies the difference between two input signals while rejecting common-mode voltages. It is characterized by high input impedance, low offset voltage, and high CMRR, making it ideal for precise sensor signal conditioning. Instrumentation amplifiers are a subset of operational amplifiers, which are fundamental building blocks in analog signal processing, and they are widely used in medical, industrial, and automotive applications. Key features of the AD8221ARZ include a low input offset voltage of 60 µV, a low input bias current of 500 pA, and a bandwidth of 825 kHz. The device also offers a slew rate of 2 V/µs, ensuring fast response in dynamic measurement systems. The gain is set by a single external resistor, allowing flexible configuration from 1 to 1000. The high CMRR of 90 dB at 60 Hz (minimum) and 80 dB at 10 kHz (minimum) ensures accurate rejection of power-line interference and high-frequency noise. The AD8221ARZ is designed with a three-op-amp architecture, providing excellent DC and AC performance. The input stage uses super-beta transistors to achieve low bias current, while the output stage drives loads up to 10 kΩ. The device operates from a single supply of 4.5 V to 36 V or dual supplies of ±2.25 V to ±18 V, with a quiescent current of 1.2 mA. The wide supply range and low power consumption make it suitable for battery-powered and industrial applications. Typical applications include medical instrumentation (ECG, EEG), industrial process control, bridge amplifiers, and data acquisition systems. The AD8221ARZ is also used in precision sensor interfaces, where its low offset and high CMRR are critical for accurate measurements. Its small SOIC package and surface-mount design enable compact PCB layouts. When designing with the AD8221ARZ, ensure proper grounding and decoupling to maintain high CMRR. Use a 0.1 µF capacitor close to the supply pins and a 10 µF tantalum capacitor for low-frequency decoupling. The reference pin (pin 5) can be used to level-shift the output, which is useful in single-supply applications.

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AD8223ARZ - Single-Supply Instrumentation Amplifier | Analog Devices
AD8223ARZ

AD8223ARZ - Single-Supply Instrumentation Amplifier | Analog Devices

The AD8223ARZ is a single-supply, low-cost instrumentation amplifier from Analog Devices, designed for precision signal conditioning in medical and industrial applications. It operates from a single supply of +3.0 V to +25 V (or dual supplies of ±1.5 V to ±12.5 V) and delivers rail-to-rail output swing. The device is available in an 8-lead SOIC package (8-SOIC, 0.154" width) and conforms to the industry-standard 8-lead pinout configuration. An instrumentation amplifier (in-amp) is a type of differential amplifier that amplifies the difference between two input signals while rejecting common-mode voltages. It is characterized by high input impedance, high common-mode rejection ratio (CMRR), and low offset voltage, making it ideal for precise measurement of small signals in the presence of large common-mode noise. In the signal chain hierarchy, an instrumentation amplifier is a specialized operational amplifier (op-amp) configuration, often used as the front-end of data acquisition systems, sensor interfaces, and medical monitoring equipment. Key features of the AD8223ARZ include a gain set by a single external resistor, with a default gain of 5 when no resistor is used. The gain can be programmed from 5 to 1000, providing flexibility for various sensor outputs. The device offers a bandwidth of 200 kHz at gain of 5, and a low input offset voltage of 50 µV (max). It also features a high CMRR of 90 dB (min) at gain of 10, ensuring excellent rejection of common-mode interference. The rail-to-rail output swing allows maximum dynamic range in single-supply applications. Technically, the AD8223 uses a classic three-op-amp instrumentation amplifier architecture, but optimized for single-supply operation. The input stage provides high impedance and low bias current, while the output stage delivers rail-to-rail swing. The device is laser-trimmed for low offset and drift, ensuring accuracy over temperature. It operates over the industrial temperature range of -40°C to +85°C, making it suitable for harsh environments. Typical applications include medical instrumentation (ECG, EEG, blood pressure monitors), industrial process control (pressure, temperature, and strain gauge sensors), and precision data acquisition systems. The single-supply capability and low cost make it an attractive choice for battery-powered and portable devices. When designing with the AD8223ARZ, ensure proper decoupling of the power supply pins with 0.1 µF ceramic capacitors placed close to the device. The reference pin (pin 5) can be used to level-shift the output, allowing the amplifier to interface with ADCs that have a specific input range. For best performance, use precision resistors for the gain-setting resistor to maintain gain accuracy.

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AD8223BRMZ - Single-Supply Rail-to-Rail INA, 200kHz | Analog Devices
AD8223BRMZ

AD8223BRMZ - Single-Supply Rail-to-Rail INA, 200kHz | Analog Devices

The Analog Devices AD8223BRMZ is a single-supply, rail-to-rail output instrumentation amplifier (INA) housed in an 8-pin MSOP package with a 200 kHz bandwidth and a single-resistor gain setting from 5 to 1000. Designed for low-cost precision signal conditioning, it operates from a single +3.0 V to +25 V supply and delivers rail-to-rail output swing on the output stage, with inputs that swing 150 mV below the negative rail. An instrumentation amplifier is a precision differential amplifier that combines high common-mode rejection ratio (CMRR), high input impedance, and a user-programmable gain set by a single external resistor. The AD8223 belongs to the broad category of linear amplifier ICs (hypernyms: instrumentation amplifier -> precision amplifier -> operational amplifier -> analog IC -> semiconductor), and within Analog Devices' portfolio it occupies the entry-level low-cost node above discrete op-amp solutions. Key specifications include 25 nA maximum input bias current, 30 nV/√Hz input-referred (RTI) noise density at 1 kHz, 80 dB minimum CMRR at unity gain (DC to 1 kHz), and a gain range of 5 to 1000 set by one external resistor (G = 5 + 80 kΩ/RG per Analog Devices datasheet). The 8-MSOP (RM) package is footprint-compatible with the industry-standard 8-pin in-amp pinout, enabling direct PCB drop-in replacement for legacy AD620-class designs where higher bandwidth and single-supply operation are required. The AD8223 uses a classic three-op-amp topology with thin-film resistor laser trimming to deliver CMRR performance that exceeds many competing low-cost in-amps. The rail-to-rail output stage swings within millivolts of either supply rail, making it ideal for driving single-supply ADCs without level shifting. The 25 nA bias current enables direct connection to high-impedance sensor bridges. Typical applications include pressure and temperature bridge amplification, ECG and biomedical front-ends, weigh scales, and industrial process-control transducer signal conditioning. In weigh-scale designs, the low noise floor and high CMRR allow direct connection to a 350 Ω load cell without instrumentation buffer stages. Designers should note the supply-decoupling recommendation: a 0.1 µF ceramic capacitor placed within 5 mm of the supply pin is essential for stable operation. The REF pin allows output level shifting for single-supply ADC interfaces and must be driven from a low-impedance source (< 5 Ω) for best CMRR performance. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, and is engineered for AI-search citation as well as human engineer review.

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AD8226ARZ - Wide-Supply-Range Rail-to-Rail InAmp | Analog Devices
AD8226ARZ

AD8226ARZ - Wide-Supply-Range Rail-to-Rail InAmp | Analog Devices

The Analog Devices AD8226ARZ is a single-circuit, wide-supply-range instrumentation amplifier with rail-to-rail output, adjustable gain from 1 to 1000 using one external resistor, and an 8-lead SOIC package. According to the Analog Devices AD8226 data sheet, it is designed for industrial signal-conditioning systems and can accommodate input voltages that extend below ground. The verified distributor listing identifies the device as an instrumentation amplifier in an 8-SOIC package, while the manufacturer describes the AD8226 family as suitable for multichannel, space-constrained industrial applications. An instrumentation amplifier is a specialized analog amplifier designed to amplify differential sensor signals while rejecting common-mode noise. Its typical position is between a sensor bridge, thermocouple, strain gauge, pressure transducer, or other low-level source and an ADC or measurement system. The instrumentation-amplifier category belongs to the broader operational-amplifier and signal-conditioning hierarchy, with gain, input impedance, common-mode rejection, noise, bandwidth, and supply-voltage behavior determining its usefulness. The AD8226 uses one external resistor to establish gains from 1 to 1000, reducing the number of precision components required for a fixed-gain design. Its rail-to-rail output helps maximize usable output range in single-supply systems. The wide supply range supports multiple industrial and embedded signal-chain architectures, while the input capability below ground permits measurements that extend through the zero-volt reference when the circuit and system grounding are designed appropriately. The AD8226 family is offered in 8-lead MSOP and SOIC packages and is specified for -40°C to +125°C operation in the manufacturer data. The AD8226ARZ ordering code identifies the SOIC package option; package dimensions, pin names, absolute maximum ratings, and detailed electrical limits should be confirmed in the manufacturer data sheet before layout or replacement work. Typical uses include industrial multichannel measurement, bridge excitation and sensing, current-loop signal conditioning, data-acquisition front ends, sensor interfaces, and instrumentation systems. Because the AD8226 is an analog signal-chain device, PCB layout should prioritize short input paths, careful grounding, low-noise supply routing, and stable gain-resistor placement. When designing around the AD8226ARZ, verify the selected gain, supply voltages, input common-mode range, output swing, and bandwidth against the actual sensor signal. This page synthesizes the verified manufacturer and distributor information, available cross-reference results, application guidance, and design considerations to support component selection and procurement.

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AD8226BRZ - Wide Supply Range In-Amp | Analog Devices
AD8226BRZ

AD8226BRZ - Wide Supply Range In-Amp | Analog Devices

The AD8226BRZ is a low cost, wide supply range instrumentation amplifier from Analog Devices, packaged in an 8-lead SOIC. It requires only one external resistor to set any gain between 1 and 1000, making it a versatile building block for precision signal conditioning. The device operates from a single supply of 2.2V to 36V or dual supplies of ±1.1V to ±18V, with rail-to-rail output swing. Its input voltage range extends below ground, allowing it to handle bipolar signals even with a single positive supply. An instrumentation amplifier (in-amp) is a type of differential amplifier that amplifies the difference between two input signals while rejecting common-mode voltages. It is characterized by high input impedance, low offset voltage, and high common-mode rejection ratio (CMRR), making it ideal for interfacing with sensors such as strain gauges, thermocouples, and bridge circuits. In the signal chain hierarchy, an in-amp sits between the sensor and the ADC, providing the necessary gain and buffering to condition small differential signals. Key features of the AD8226BRZ include a gain range of 1 to 1000 set by a single resistor, a wide supply range, rail-to-rail output, and a low quiescent current of 350 µA typical. It also offers a CMRR of 80 dB minimum at gain 1, and a bandwidth of 1.5 MHz at gain 1. The device is fully specified for operation from -40°C to +125°C, making it suitable for industrial and automotive environments. Technically, the AD8226 uses a three-op-amp topology with an integrated precision resistor network, providing excellent DC accuracy and stability. The gain-setting resistor is connected between the RG pins, and its value determines the gain according to the formula G = 1 + 49.4 kΩ / RG. The device features internal ESD protection and is available in both SOIC and MSOP packages. Typical applications include industrial process control, bridge amplifiers, medical instrumentation, and data acquisition systems. Its wide supply range and rail-to-rail output make it particularly suited for single-supply systems where headroom is limited. When designing with the AD8226BRZ, ensure that the reference pin (pin 5) is properly bypassed with a capacitor to ground to maintain stability. Also, keep the gain-setting resistor close to the RG pins to minimize parasitic capacitance and maintain accuracy.

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AD8226BRZ-RL7 - Wide Supply Range In-Amp | Analog Devices
AD8226BRZ-RL7

AD8226BRZ-RL7 - Wide Supply Range In-Amp | Analog Devices

The AD8226BRZ-RL7 is a low cost, wide supply range instrumentation amplifier from Analog Devices that requires only one external resistor to set any gain between 1 and 1000. It is designed to work with a variety of signal voltages, featuring a wide input range and rail-to-rail output. The device operates from dual supplies of ±2.25 V to ±18 V or a single supply of 4.5 V to 36 V, making it versatile for both battery-powered and industrial applications. Housed in an 8-lead SOIC package (BRZ suffix), the AD8226BRZ-RL7 is supplied in tape and reel packaging for automated assembly. An instrumentation amplifier (in-amp) is a precision differential amplifier with high input impedance and high common-mode rejection, used to amplify small signals in the presence of large common-mode voltages. It is a key building block in precision analog signal chains, often following a sensor bridge or transducer, and preceding an ADC. The AD8226 belongs to the family of instrumentation amplifiers, which are a subset of operational amplifiers optimized for differential measurement. Key features of the AD8226 include a gain range of 1 to 1000 set by a single external resistor, rail-to-rail output swing, and a wide input voltage range that includes below ground. The device also offers excellent AC and DC performance, with a typical gain error of 0.1% (max) and gain drift of 10 ppm/°C (max). Quiescent current is only 350 µA (typical), making it suitable for low-power, battery-operated equipment. The AD8226 is specified over the extended industrial temperature range of -40°C to +125°C. Technically, the AD8226 uses a three-op-amp topology with a precision laser-trimmed resistor network, ensuring high accuracy and stability. The input stage provides high common-mode rejection, while the output stage delivers rail-to-rail swing. The device is fully specified for both single and dual supply operation, and its input range extends below the negative rail, allowing it to handle signals that go slightly below ground. Typical applications include industrial process control, bridge amplifiers, medical instrumentation, and data acquisition systems. The AD8226 is ideal for amplifying small differential signals from sensors such as strain gauges, thermocouples, and current shunt monitors. Its wide supply range and low power make it suitable for portable and battery-operated equipment. When designing with the AD8226, ensure that the reference pin is properly driven to set the output common-mode voltage, and use a precision resistor for gain setting to maintain accuracy. Bypass the supply pins with 0.1 µF ceramic capacitors close to the device to ensure stability.

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AD8227ARZ - Wide Supply Range In-Amp | Analog Devices
AD8227ARZ

AD8227ARZ - Wide Supply Range In-Amp | Analog Devices

The AD8227ARZ is a low cost, wide supply range instrumentation amplifier from Analog Devices that requires only one external resistor to set any gain between 5 and 1000. It is designed to work with a variety of signal voltages, featuring a wide input range and rail-to-rail output. The device is packaged in an 8-lead SOIC (SOIC-8) and operates over a wide supply range, making it suitable for industrial, medical, and automotive applications. An instrumentation amplifier (in-amp) is a type of differential amplifier that amplifies the difference between two input signals while rejecting common-mode voltages. It is a key building block in precision measurement systems, where it conditions small sensor signals before analog-to-digital conversion. In-amps are characterized by high input impedance, high common-mode rejection ratio (CMRR), and low offset voltage, making them ideal for bridge sensors, thermocouples, and other low-level signal sources. Key features of the AD8227ARZ include a gain range of 5 to 1000 set by a single external resistor, a wide supply range of ±2.25 V to ±18 V (or 4.5 V to 36 V single supply), and a rail-to-rail output stage. It offers a 3 dB bandwidth of 250 kHz at G = 5, a slew rate of 1.2 V/µs, and an input bias current of 27 nA. The device also features low offset voltage and drift, ensuring accurate signal conditioning over temperature. The AD8227 uses a classic three-op-amp architecture with a precision laser-trimmed resistor network, providing excellent CMRR and gain accuracy. The rail-to-rail output allows maximum dynamic range in single-supply applications, while the wide supply range accommodates both 5 V and ±15 V systems. The SOIC-8 package is industry-standard, enabling easy PCB layout and drop-in replacement in many designs. Typical applications include industrial process control, bridge amplifiers, medical instrumentation, and data acquisition systems. The AD8227ARZ is particularly suited for applications requiring high accuracy over a wide input voltage range, such as motor control current sensing and battery monitoring. When designing with the AD8227ARZ, ensure proper decoupling of the power supply pins with 0.1 µF ceramic capacitors placed close to the device. The gain-setting resistor should be a precision resistor with low temperature coefficient to maintain gain accuracy. For best CMRR performance, keep the input traces balanced and shielded.

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AD8227ARZ-RL7 - Wide Supply In-Amp | Analog Devices
AD8227ARZ-RL7

AD8227ARZ-RL7 - Wide Supply In-Amp | Analog Devices

The Analog Devices AD8227ARZ-RL7 is a low cost, wide supply range instrumentation amplifier supplied in an 8-lead SOIC package on tape and reel. It needs only one external resistor to set any gain between 5 and 1000. According to the AD8227 datasheet (Rev. 0), the amplifier operates from dual supplies spanning ±1.5 V to ±18 V, or a single supply from 2.2 V to 36 V, and provides a rail-to-rail output stage. Because the input range can extend below the negative supply, small ground-referenced signals can be amplified without dual supplies, simplifying system power architectures. An instrumentation amplifier (in-amp) is a precision differential amplifier with high common-mode rejection, typically used to extract small signals from sensors, bridges, or transducers in the presence of common-mode noise. It sits above the general category of operational amplifiers and is a key building block of signal-conditioning chains for analog-to-digital converters. The AD8227 belongs to this product hierarchy: instrumentation amplifier -> precision amplifier -> analog signal conditioning -> integrated circuit. Its single-resistor gain programming and balanced pinout make it easy to apply in factory automation, medical monitors, and automotive modules. Key features include the 5-to-1000 gain range, wide dual/single supply operation, rail-to-rail output swing, and a REF pin protected by ESD diodes for level shifting into single-supply ADCs. The A grade (ARZ) exhibits about 27 nA typical input bias current, while the B grade (BRZ) improves this to 20 nA. The input common-mode range and the ability to drive rail-to-rail outputs allow the signal to make full use of supply rails. From an architecture perspective, the AD8227 is a three-op-amp style instrumentation amplifier enhanced for wide supply and low cost. It merges a precision front end with an output stage capable of sensing the negative rail, making it suitable for systems that only have one power supply. This low-cost approach is aimed at high-volume industrial and consumer measurement applications where price matters, but CMRR and gain accuracy cannot be sacrificed. Typical applications include load-cell and strain-gauge bridge conditioning, industrial current-shunt monitoring, medical biosignal acquisition, automotive sensor interfaces, and ADC driver circuits where the REF pin shifts the output. The wide input range and single-supply compatibility make it a versatile choice for mixed-signal boards. When designing with this part, remember to keep the external gain resistor close to the RG pins with low thermal drift, and never drive the REF pin more than 0.3 V beyond the supplies. These simple precautions preserve gain accuracy and prevent ESD diode conduction.

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AD8227BRZ - Wide Supply Range In-Amp | Analog Devices
AD8227BRZ

AD8227BRZ - Wide Supply Range In-Amp | Analog Devices

The AD8227BRZ is a low cost, wide supply range instrumentation amplifier from Analog Devices that requires only one external resistor to set any gain between 5 and 1000. It is designed to work with a variety of signal voltages, featuring a wide input range and rail-to-rail output. The device operates from dual supplies of ±2.25 V to ±18 V or single supplies of 4.5 V to 36 V, making it versatile for industrial and medical applications. Housed in an 8-lead SOIC package, the AD8227BRZ offers a bandwidth of 250 kHz at G = 5 and a low input offset voltage of 100 µV, ensuring accurate signal conditioning. An instrumentation amplifier (in-amp) is a type of differential amplifier that amplifies the difference between two input signals while rejecting common-mode voltages. It is a specialized operational amplifier (op-amp) topology with high input impedance and high common-mode rejection ratio (CMRR), making it ideal for precise measurement of small signals in noisy environments. In the hierarchy of analog signal processing, an in-amp is a key building block within the broader category of linear amplifiers, which are essential in data acquisition systems, sensor interfaces, and medical instrumentation. Key features of the AD8227BRZ include a wide supply range, rail-to-rail output swing, and a gain range of 5 to 1000 set by a single external resistor. The device also offers a low quiescent current of 700 µA, making it suitable for battery-powered applications. Its input offset voltage is 100 µV, and it has a CMRR of 80 dB at G = 5, providing excellent rejection of common-mode noise. The AD8227BRZ is specified over the industrial temperature range of -40°C to +125°C, ensuring reliable operation in harsh environments. Technically, the AD8227 uses a three-op-amp architecture with a precision laser-trimmed resistor network, achieving high accuracy without external trimming. The gain is set by an external resistor, RG, connected between the RG pins, allowing flexible configuration. The device's rail-to-rail output stage enables maximum dynamic range, and its wide input range accommodates signals beyond the supply rails, enhancing its versatility. The AD8227BRZ is designed for low power consumption, making it ideal for portable and remote sensing applications. Typical applications include industrial process control, bridge amplifiers, medical instrumentation, and data acquisition systems. In industrial settings, the AD8227BRZ can amplify small sensor signals from thermocouples or strain gauges, rejecting common-mode interference. In medical devices, it provides accurate ECG or EEG signal conditioning. Its wide supply range and low power make it suitable for battery-operated equipment. When designing with the AD8227BRZ, ensure proper decoupling of the power supply pins with 0.1 µF ceramic capacitors placed close to the device. The reference pin (VREF) should be driven with a low-impedance source to maintain CMRR. For optimal performance, use precision resistors for the gain-setting resistor to minimize gain error.

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AD8227BRZ-RL7 - Low Cost Wide Supply Range In-Amp | Analog Devices
AD8227BRZ-RL7

AD8227BRZ-RL7 - Low Cost Wide Supply Range In-Amp | Analog Devices

The AD8227BRZ-RL7 is a low cost, wide supply range instrumentation amplifier from Analog Devices. It requires only one external resistor to set any gain between 5 and 1000, making it highly versatile for a variety of signal conditioning applications. The device features a wide input range and rail-to-rail output, allowing the signal to make full use of the supply rails. Because the input range can also go below the negative supply, small signals near ground can be amplified without requiring dual supplies. The AD8227 operates on supplies ranging from ±1.5 V to ±18 V (2.2 V to 36 V single supply). An instrumentation amplifier (in-amp) is a type of differential amplifier that has been optimized for high input impedance, high common-mode rejection, and low offset voltage. It is typically used to amplify small differential signals in the presence of large common-mode voltages, such as those from bridge sensors, thermocouples, and medical instrumentation. The AD8227 belongs to the family of instrumentation amplifiers, which are a subset of operational amplifiers (op amps) designed specifically for precision measurement applications. Key features of the AD8227 include a wide supply range, rail-to-rail output, and a gain range of 5 to 1000 set by a single external resistor. The device also offers low input bias current and low offset voltage, ensuring accurate signal amplification. The AD8227 is available in an 8-lead SOIC package, which is compact and suitable for space-constrained designs. Technically, the AD8227 uses a three-op-amp topology with an internal precision resistor network, providing excellent common-mode rejection and gain accuracy. The device is laser-trimmed for low offset voltage and drift, ensuring stable performance over temperature. The wide supply range and rail-to-rail output make it suitable for both single-supply and dual-supply applications. Typical applications include industrial process control, bridge amplifiers, medical instrumentation, and data acquisition systems. The AD8227's ability to amplify signals near ground without dual supplies makes it ideal for battery-powered and single-supply systems. When designing with the AD8227, ensure that the external gain-setting resistor is placed close to the device to minimize parasitic capacitance and maintain stability. Also, consider the input common-mode range to avoid clipping the output.

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AD8237ARMZ - Micropower Zero-Drift Rail-to-Rail In-Amp | ADI
AD8237ARMZ

AD8237ARMZ - Micropower Zero-Drift Rail-to-Rail In-Amp | ADI

The Analog Devices AD8237ARMZ is a micropower, zero-drift, true rail-to-rail instrumentation amplifier housed in an 8-pin MSOP package. It operates from a single 1.8 V to 5.5 V supply, draws only 130 µA typical quiescent current, and supports user-set gain from 1 to 1000 via two external resistors. According to the AD8237 manufacturer datasheet, the part employs an indirect current-feedback architecture that delivers true rail-to-rail input and output swing. An instrumentation amplifier (In-Amp) is a precision analog building block that amplifies a small differential voltage sitting on top of a large common-mode voltage. In-Amp -> differential amplifier -> op-amp -> analog IC -> semiconductor. The AD8237 belongs to the zero-drift chopper-stabilized family, which internally corrects its own offset and drift, eliminating the 1/f noise and DC offset drift typical of conventional three-op-amp In-Amp designs. Key specifications include 12 µV maximum input offset voltage (post-calibration), 0.05 µV/°C typical offset drift, 110 dB minimum common-mode rejection ratio (CMRR) at DC, and 100 kHz small-signal bandwidth at G=1. The device achieves 4 nV/√Hz input voltage noise spectral density and offers true rail-to-rail input and output swings over the entire supply range. The MSOP-8 footprint integrates the gain-setting resistors externally so the user can program any gain without disturbing CMRR. The AD8237 uses Analog Devices' indirect current-feedback topology combined with chopping and ping-pong auto-zero techniques to remove flicker noise. This architecture preserves CMRR across frequency because the gain-setting resistor ratio - not absolute value - determines gain accuracy. The result is an In-Amp that behaves like a precision DC amplifier but consumes only microwatts of quiescent power. Typical applications include portable ECG and biosignal front-ends, weigh scales and strain-gauge bridges, battery-powered industrial sensor conditioning, thermocouple amplifiers, and current-sense loops in handheld meters. The wide supply range (1.8 V-5.5 V) and micropower consumption make it ideal for any 2-cell AA, Li-ion, or coin-cell powered system. When designing with the AD8237, select precision 0.1% gain resistors to preserve CMRR, place a 0.1 µF ceramic bypass capacitor within 5 mm of the supply pin, and ensure the common-mode input voltage stays within the rails. Gain above 100 may require additional supply decoupling. This page synthesizes AD8237ARMZ distributor pricing, drop-in same-package alternatives from Analog Devices' instrumentation amplifier family, parametric comparison tables, and practical design notes not collected in a single place by the manufacturer datasheet.

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AD823ARZ - Dual 16MHz JFET Op Amp | Analog Devices
AD823ARZ

AD823ARZ - Dual 16MHz JFET Op Amp | Analog Devices

The AD823ARZ is a dual precision, 16 MHz, JFET input operational amplifier from Analog Devices. It operates from a single supply of 3.0 V to 36 V or from dual supplies of ±1.5 V to ±18 V, with true single-supply capability and an input voltage range extending below ground. The output swings rail-to-rail, and the device can drive capacitive loads up to 500 pF at unity gain. It delivers 15 mA output current with 0.5 V from the supplies, making it suitable for a wide range of precision analog applications. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output. It is a fundamental building block in analog electronics, used in signal conditioning, filtering, and instrumentation. The AD823 is a dual op amp, meaning it contains two independent amplifiers in one package, saving board space and cost. It belongs to the JFET-input op amp family, which offers high input impedance and low input bias current, ideal for interfacing with high-impedance sensors and sources. Key features of the AD823ARZ include a 16 MHz unity-gain bandwidth, a slew rate of 25 V/µs, and excellent AC performance on a low quiescent current of 2.6 mA per amplifier. The input voltage range extends below ground in single-supply operation, allowing the amplifier to handle signals near or below the negative rail. The rail-to-rail output stage maximizes dynamic range, which is critical in battery-powered and low-voltage systems. The AD823 uses a JFET input stage with a precision bipolar output stage, providing low offset voltage and low noise. The device is designed for high-speed signal processing, with a fast settling time and low distortion. Its wide supply range and robust output drive make it versatile for both single-supply and dual-supply designs. Typical applications include photodiode amplification, active filters, data acquisition systems, and audio preamplifiers. The AD823's high input impedance and low bias current are particularly suited for transimpedance amplifiers and sensor interfaces. Its rail-to-rail output and wide bandwidth also make it suitable for driving ADCs and buffering reference voltages. When designing with the AD823ARZ, ensure proper decoupling of the power supply pins with 0.1 µF ceramic capacitors placed close to the device. The input voltage range extends below ground, but do not exceed the absolute maximum ratings. For single-supply operation, bias the inputs to mid-supply to maximize headroom.

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AD8250ARMZ - 10MHz iCMOS PGIA, G=1/2/5/10 | Analog Devices
AD8250ARMZ

AD8250ARMZ - 10MHz iCMOS PGIA, G=1/2/5/10 | Analog Devices

The Analog Devices AD8250ARMZ is a 10 MHz bandwidth, digitally programmable-gain instrumentation amplifier (PGIA) offering pin-selectable gains of 1, 2, 5, and 10 in a compact 10-lead MSOP (RM-10) package. It features a GΩ-class input impedance, 20 V/µs slew rate, fast 615 ns (max) settling time to 0.001%, and -110 dB THD, making it well suited to bridge-type sensors and high-sample-rate analog-to-digital converters. An instrumentation amplifier (INA / PGIA) is a closed-loop gain block that combines high common-mode rejection (CMRR), high input impedance, and a single-resistor-programmable differential gain. PGIA variants add a digital interface to switch gain on the fly, which lets one analog front-end handle widely varying sensor signals (thermocouples, strain gauges, shunt resistors, biopotential electrodes) without an external mechanical relay or analog switch network. The AD8250 occupies the mid-bandwidth, low-power niche between classic three-op-amp INAs such as the AD620 and the higher-frequency AD8421 family. Key specifications include 10 MHz small-signal bandwidth (G=1), 20 V/µs slew rate, 1.5 nV/√Hz input voltage noise density, 75 µV (max) input offset voltage, 0.5 µV/°C (max) offset drift, and a wide ±5 V to ±15 V (or 5 V to 30 V single-supply) operating range. The MSOP-10 footprint consumes roughly 60% less board area than an SOIC-8 INA, while parallel digital gain-select inputs simplify FPGA/MCU control. Quiescent current is typically 4.5 mA on ±15 V supplies. Architecturally, the AD8250 uses Analog Devices' iCMOS process, which combines high-voltage bipolar transistors on a sub-micron CMOS wafer to deliver wide supply range and low power without sacrificing ESD/EMC robustness. The topology is a classic three-op-amp INA, but the feedback resistors are switched by matched MOSFET networks rather than mechanical relays, eliminating glitch-free concerns of electromechanical switching. Internal overdrive protection prevents damage when the input exceeds the supply rails by up to ±25 V. Typical applications include industrial process control front-ends, weigh scales and load-cell amplifiers, ECG and biopotential signal conditioning, ATE (automatic test equipment) programmable-gain stages, and wide-dynamic-range data-acquisition (DAQ) systems driving 16-/18-/24-bit ADCs such as the AD7612, AD7606, or AD7768. The transparent gain mode also supports legacy pin-strap designs without an FPGA. When designing with the AD8250, route the gain-select logic lines away from the input traces to preserve CMRR, and use a low-impedance ground plane beneath the package. Reference-design AN-1385 demonstrates -111 dB THD at 1 kHz and 91 dB SNR when paired with the AD7612 and an ADG1209 mux, validating the part for precision DAQ. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving an engineer a single source for part selection, sourcing, and reference-design context.

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AD8251ARMZ - 10MHz iCMOS Programmable Gain In-Amp | ADI
AD8251ARMZ

AD8251ARMZ - 10MHz iCMOS Programmable Gain In-Amp | ADI

The Analog Devices AD8251ARMZ is a 10 MHz bandwidth, digitally programmable gain instrumentation amplifier (in-amp) with GΩ input impedance, low output noise, and low distortion, housed in a 10-lead MSOP package. It supports user-selectable gains of 1, 2, 4, and 8 set via transparent parallel logic inputs or a pin-strapped mode, and operates from ±5 V to ±15 V dual supplies. An instrumentation amplifier is a precision differential amplifier with high common-mode rejection ratio (CMRR), high input impedance, and a single-ended output - purpose-built for extracting small differential signals sitting on top of large common-mode voltages. Within the broader taxonomy, the AD8251 sits in the chain: instrumentation amplifier -> precision amplifier -> amplifier IC -> analog signal chain -> semiconductor. Programmable-gain in-amps specifically address dynamic-range challenges in sensor conditioning by allowing the system to optimize gain per channel or per measurement range. Key features include a high CMRR of 98 dB minimum at G = 8, gain drift of 10 ppm/°C maximum, and offset drift of 1.8 µV/°C maximum at G = 8. Excellent AC performance is delivered through a fast 785 ns settling time to 0.001% (maximum), a 20 V/µs minimum slew rate, and low THD of -110 dB. These specifications make the AD8251 suitable for interfacing directly with sensors and driving high-sample-rate analog-to-digital converters (ADCs) without the need for an additional buffer stage. The device uses Analog Devices' iCMOS (industrial CMOS) process technology, which enables high-voltage analog operation (±15 V) on a small die, fitting a 10-lead MSOP package. The architecture pairs a classic three-op-amp in-amp topology with switched feedback resistors selected by logic-level gain pins, allowing transparent gain changes mid-acquisition. Power dissipation is approximately 6 mA quiescent current over the supply range, supporting portable instrumentation designs. Typical applications include industrial process controls, weigh scales, ECG/biomedical front-ends, and data acquisition (DAQ) systems where programmable gain optimizes ADC full-scale utilization across multiple sensor ranges. The wide supply range also supports PLC analog input modules and ATE (automatic test equipment) signal conditioning. Designers should pay attention to input bias-current return paths when the source impedance is high (e.g., transformer-coupled or biased piezoelectric sensors). Decouple both supply pins with 0.1 µF ceramic capacitors placed within 5 mm of the device, plus a 10 µF bulk tantalum or ceramic at each supply. Use a ground plane and keep input traces short and guarded for maximum CMRR at high frequencies. This page synthesizes distributor pricing, drop-in alternative inventory, and practical design notes not found in the manufacturer datasheet alone, with verified web data captured on 2026-10-04.

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