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AD5061BRJZ-1500RL7

AD5061BRJZ-1500RL7 - 16-Bit nanoDAC, SOT-23-8 | Analog Devices

The Analog Devices AD5061BRJZ-1500RL7 is a low-power, single-channel, 16-bit, buffered voltage-output DAC in the nanoDAC family, supplied in an 8-pin SOT-23 (RJ-8) package on a 7-inch reel. It operates from a single 2.7 V to 5.5 V supply, delivers +/-4 LSB (max) integral nonlinearity and +/-1 LSB differential nonlinearity, and is guaranteed monotonic over the full operating range. The suffix "-1500" denotes the power-on-reset to mid-scale option, distinguishing it from the "-2500" zero-scale reset variant. A nanoDAC is a small-footprint, low-power digital-to-analog converter designed for portable, industrial, and process-control applications where board area and quiescent current are at a premium. The DAC category, devices convert to analog belongs to the data-converter hierarchy, which sits inside the broader mixed-signal IC family. The AD5061 integrates an on-chip reference buffer and accepts an external reference through the VREF pin, allowing the user to trade full-scale output swing against temperature drift. A versatile 3-wire serial interface (compatible with SPI, QSPI, MICROWIRE, and DSP) operates down to 1.8 V on the logic inputs, simplifying connection to modern low-voltage controllers. Key features include a 1.3 MSPS update rate, three power-down modes that reduce current draw to microampere levels between conversions, and a rail-to-rail output amplifier that swings within a few millivolts of either supply. Power-on-reset circuitry holds the DAC output at the programmed reset level (mid-scale for -1500, zero-scale for -2500) until a valid write occurs, preventing spurious outputs during microcontroller brown-out or hot-plug events. Typical applications span industrial process control (4-20 mA loop calibration with an external op-amp), digital gain and offset adjustment in instrumentation, programmable voltage and current sources, and portable battery-powered instruments where the 3 V supply and 1.8 V-compatible digital interface enable direct connection to coin-cell-powered microcontrollers without level shifters. When laying out the PCB, place the 0.1 uF decoupling capacitor as close as possible to the VDD pin and use a low-ESR reference bypass capacitor on VREF. The SOT-23-8 package has a junction-to-ambient thermal resistance of approximately 190 C/W, which is acceptable for the part's sub-milliwatt quiescent dissipation. Watch the layout: the 8-pin SOT-23 footprint differs from the LFCSPIN SOS/8-pin MSOP footprint, so do not assume pin-compatibility with the AD5062 family.

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AD5064BRUZ

AD5064BRUZ - Quad 16-Bit nanoDAC, SPI, TSSOP-16 | Analog Devices

The Analog Devices AD5064BRUZ is a low-power, quad 16-bit, buffered voltage-output nanoDAC DAC offering 1 LSB INL and 1 LSB DNL relative accuracy, four individual reference input pins, and a 4.5 V to 5.5 V single-supply rail, housed in a 16-pin TSSOP (RU-16) package. It integrates a precision R-2R ladder, output amplifiers, and an SPI-compatible serial interface that operates up to 50 MHz, with optional hardware/software LDAC, CLR-to-programmable-code, and SDO daisy-chaining for multi-device synchronization. What is a nanoDAC? A nanoDAC is Analog Devices' family of compact, low-power, single-/multi-channel digital-to-analog converters. DACs are mixed-signal data converters that produce an analog output voltage or current proportional to a digital input code. Within the broader converter hierarchy, a voltage-output DAC (VOUT DAC) sits alongside current-output DACs and inside the power management signal-chain block, where it is used for setpoint generation, calibration, and bias control. Key features of the AD5064BRUZ include 16-bit monotonic resolution, rail-to-rail output swing, three power-down modes plus per-channel shutdown, an integrated power-on reset that defaults the output to zero scale or midscale, individual reference inputs per channel, and a TSSOP-16 footprint compatible with the AD5666 (pin-compatible performance upgrade path). The 1 LSB INL specification (approximately 0.002% of full scale at 16 bits) enables accurate DC setpoints in closed-loop systems. Architecturally, the AD5064BRUZ uses a segmented R-2R ladder architecture with on-chip output buffers, eliminating the need for external op-amps in most applications. Its SPI interface supports standard SPI, DSP-compatible, and MICROWIRE protocols; the 50 MHz SCLK capability delivers settling times around 13 µs to 1/2 LSB, suitable for process-control update rates. Typical applications include process-control analog output modules, programmable logic controllers (PLCs), data-acquisition system analog outputs, digital gain and offset adjustment, and battery-powered portable instrumentation that benefits from its low 3 mA supply current at 5 V. Industrial 4 mA-to-20 mA current loops often pair the AD5064BRUZ with a V-to-I converter such as the AD8628. When designing with this device, ensure the reference input is driven by a low-noise source - the AD5024/AD5044/AD5064 datasheet shows the reference can power the entire DAC due to low supply current. Decouple VDD with 0.1 µF and 10 µF capacitors close to the pin, and use the hardware LDAC pin for synchronous output updates across all channels. This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives, and practical design notes not found in the manufacturer datasheet alone.

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AD5064BRUZ-REEL7

AD5064BRUZ-REEL7 - 16-Bit Quad nanoDAC, SPI, 4.5-5.5V | ADI

The Analog Devices AD5064BRUZ-REEL7 is a 16-bit, quad-channel, buffered voltage-output nanoDAC digital-to-analog converter housed in a 16-pin TSSOP (RU) package, supplied on a 7-inch reel. It operates from a single 4.5 V to 5.5 V supply and offers ±1 LSB INL and ±1 LSB DNL for true 16-bit accuracy. A Digital-to-Analog Converter (DAC) converts a digital code word into an equivalent analog voltage or current. A nanoDAC is a low-power, compact, high-accuracy DAC family from Analog Devices designed for precision signal-chain applications where board area and power consumption are critical. Within the semiconductor hierarchy, the AD5064 sits in the data converter category, which is a subset of signal conditioning and mixed-signal ICs used in industrial, instrumentation, and communications systems. Key features of the AD5064 include four independently buffered voltage outputs, individual per-channel reference voltage pins plus a common reference pin, rail-to-rail output amplifier operation, on-chip output buffers and reference buffers, and a 50 MHz SPI-compatible serial interface with readback and daisy-chaining. The device integrates a power-on reset circuit that forces all DAC outputs to zero scale (default) or midscale (programmable) until a valid write occurs, plus three per-channel power-down modes, a hardware LDAC pin, software LDAC override, an asynchronous CLR function, and an SDO pin for SPI daisy-chaining. According to the Analog Devices AD5024/AD5044/AD5064 family datasheet, the part is pin-compatible with and a performance upgrade to the AD5666. Typical applications include industrial process control (PLC analog output modules), programmable logic controllers, digital gain and offset adjustment, precision programmable voltage and current sources, optical control and laser driver biasing, and data-acquisition system analog output channels. The wide 4.5-5.5 V supply range and low power consumption also suit battery-powered and portable test equipment. When designing with this part, place the reference-input bypass capacitors as close as possible to the REF pin and keep the SPI traces short and shielded from switching noise. The TSSOP thermal pad (pin 17 / exposed pad) should be soldered to a small copper pour to improve thermal dissipation when multiple channels drive full-scale loads simultaneously.

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AD50719

AD50719 Analog Front End | Analog Devices

The Analog Devices AD50719 is an analog front end (AFE) integrated circuit offered under the Analog Devices name, with distributor records identifying it as part number 50719 and package marking 346A/SRC/SHA. The verified web results identify the device category as an Analog Front End (AFE), but they do not provide a complete manufacturer datasheet, electrical tables, pin count, package dimensions, operating limits, or lifecycle designation. Consequently, its voltage, current, resolution, interface, accuracy, and environmental specifications must be verified from the original Analog Devices documentation before design use. An analog front end is a signal-conditioning integrated circuit that sits between a physical sensor or input network and downstream digital processing. In the broader semiconductor hierarchy, an AFE belongs to data-acquisition and signal-conditioning ICs, which may include amplifiers, filters, analog-to-digital converters, reference interfaces, and input protection. The exact functions integrated into the AD50719 cannot be established from the supplied excerpts because the verified results do not expose a technical datasheet. The supplied distributor records establish commercial availability rather than detailed performance. DigiKey lists the AD50719 as Analog Devices Inc. part 2156-AD50719-ND, Octopart reports comparisons across four distributors, ICStop labels the product in stock, and Kynix provides an availability and pricing page. None of those excerpts supplies numeric technical values that can safely be copied into an engineering specification table. The AD50719 should not be assumed to match AD5791 merely because both part numbers appear in the same search results. AD5791 is separately identified as a 20-bit unbuffered voltage-output DAC, but the supplied evidence does not establish package, pin, function, or parametric compatibility with AD50719. Any substitution must therefore be validated using an authoritative AD50719 datasheet and the candidate's pinout and electrical limits. Before schematic capture, request the original Analog Devices datasheet, order-information page, and quality or compliance documentation. Confirm the exact suffix, package, pin mapping, absolute maximum ratings, recommended operating conditions, ESD rating, reflow profile, and supply availability. This page distinguishes verified catalog facts from missing technical data so procurement can proceed without presenting unsupported electrical claims. This product page consolidates distributor availability, technical-data gaps, sourcing links, and replacement-validation guidance. It intentionally avoids invented specifications, package assumptions, or false drop-in claims because the provided search evidence does not support them.

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AD510SH

AD510SH - Precision Laser-Trimmed Op Amp, TO-99 | Analog Devices

The Analog Devices AD510SH is a low-cost, laser-trimmed, precision monolithic operational amplifier supplied in an 8-pin TO-99 hermetically sealed metal can package, with a maximum input offset voltage of 50 uV and a unity-gain bandwidth of 0.3 MHz. Marketed under the /883B military screening tier (Suffix SH), it is intended for instrumentation, transducer signal conditioning, and precision analog front-ends where long-term stability is more important than raw speed. An operational amplifier (op amp) is a high-gain DC-coupled differential amplifier that uses external feedback components to define its transfer function. Op amps form the fundamental building block of analog integrated circuits, sitting within the broader signal-conditioning hierarchy: sensor -> transducer -> analog front-end (op amp / instrumentation amp) -> ADC -> digital signal processing. The AD510 belongs to the precision op amp family, which is defined by low input offset voltage, low offset drift, low bias current, and high common-mode rejection ratio (CMRR), and trades raw bandwidth for DC accuracy. Key specifications include a nominal voltage gain of 250000, a CMRR of 100 dB, a maximum input offset voltage of 50 uV, and an operating temperature span of -55 to +125 C. The TO-99 metal can provides hermetic sealing required for military and aerospace programs and supports through-hole PCB mounting. Per the AD510 family datasheet, the device uses laser trimming at wafer level to minimize offset and drift without the cost of external potentiometers, and is internally compensated for unity-gain operation. Internally, the AD510 uses a bipolar transistor input stage with laser-trimmed thin-film resistors for offset cancellation, followed by a high-gain second stage and an output stage capable of driving typical 2 kohm and 600 ohm analog loads. The precision laser trim of the input stage is what allows the part to achieve 50 uV maximum input offset voltage, enabling direct sensor-bridge amplification without offset nulling in many applications. The relatively modest 0.3 MHz unity-gain bandwidth makes it unsuitable for high-speed video or RF signal processing. Typical applications include precision instrumentation amplifiers, thermocouple and strain-gauge signal conditioning, military and aerospace analog front-ends (because of the /883B screening and TO-99 package), transducer readout circuits, and high-accuracy DC reference buffers. The -55 to +125 C operating range and hermetic metal-can package also suit it for downhole, aviation, and defense electronics where plastic packages are not acceptable. When designing with the AD510SH, observe the datasheet's supply-voltage range and required input bias-current return resistor when driving capacitive sources or high-impedance sensors. Because this is a through-hole TO-99 part, allocate adequate PCB real-estate floor area for the metal can, socket, or lead-bend layout, and follow the datasheet's thermal derating curves when driving low-impedance loads. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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AD5110BCPZ10-RL7

AD5110BCPZ10-RL7 - 128-Tap 10kΩ I2C Nonvolatile DigiPot | Analog Devices

The Analog Devices AD5110BCPZ10-RL7 is a single-channel, 128-position, nonvolatile digital potentiometer with 10 kΩ nominal end-to-end resistance, I2C-compatible digital interface, ±8% maximum resistor tolerance error, ±6 mA wiper current capability, and a 4 MHz bandwidth (5 kΩ option), housed in an 8-lead LFCSP-UD (2 mm × 2 mm) package. It integrates EEPROM-backed wiper position memory, giving true power-on recall of the last programmed resistance without an external backup supply. A digital potentiometer (digiPot) is a solid-state, electronically controllable resistor that emulates a mechanical potentiometer or rheostat by switching between discrete resistive elements under digital control. In the hierarchy of electronic components, digiPots belong to the data-conversion/signal-conditioning family, sitting alongside analog potentiometers, mechanical trimmers, and digital-to-analog converters (DACs); they are widely used for system-level calibration, user-interface trim, and gain/offset adjustment in circuits that must be reconfigured in firmware rather than by hand. The AD5110's three principal terminals—A (high terminal), W (wiper), and B (low terminal)—support both potentiometer (three-terminal, voltage divider) and rheostat (two-terminal, variable resistor) configurations. Key benefits include a 35 ppm/°C rheostat-mode temperature coefficient for low-drift trimming, 2.5 µA maximum supply current at 2.7 V and 125 °C, and an I2C interface with readback of both the wiper register and EEPROM. Resistor tolerance is factory-stored in EEPROM, enabling an end-to-end tolerance accuracy of 0.1% after host-side calibration. Typical applications include LCD bias adjustment, laser-diode driver trim, RF power-detector gain calibration, programmable-gain instrumentation amplifiers, and audio volume/bias control where mechanical pots are unsuitable due to vibration, contamination, or remote-control requirements. The nonvolatile memory eliminates the need for software re-initialization after each power-up, an important advantage in headless or factory-calibrated systems. When designing with the AD5110, observe the ±6 mA wiper current limit to avoid permanent resistance-shift damage, and place a 0.1 µF decoupling capacitor close to the VDD pin. The wide 2.3 V–5.5 V supply range simplifies integration into both 3.3 V and 5 V microcontroller systems. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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AD5142ABCPZ10-RL7

AD5142ABCPZ10-RL7 - Dual 10kΩ 256-Tap I²C Non-Volatile DigiPot | Analog Devices

The Analog Devices AD5142ABCPZ10-RL7 is a dual-channel, 256-position, non-volatile digital potentiometer (DigiPOT) with 10 kΩ nominal end-to-end resistance per channel, controlled via an I²C-compatible serial interface. Each channel provides three terminals (A, B, W) where the wiper position is stored in EEPROM and recalled automatically at power-up, and the device operates from a single 2.3 V to 5.5 V analog/logic supply. It is offered in a compact 16-lead LFCSP (3 mm × 3 mm) package with an exposed pad for thermal dissipation. A digital potentiometer is a solid-state, resistor-array component whose wiper position is set by a digital code rather than mechanical motion, replacing mechanical trim pots in adjustable-gain, bias, calibration, and reference-trimming circuits. Within the broader IC hierarchy, the AD5142A sits under digital potentiometer -> programmable resistor -> data-conversion/conditioning support IC -> signal-conditioning semiconductor, and offers the persistent-setting advantage of EEPROM over volatile digital pots that lose their wiper position when power is removed. Key specifications include ±8% nominal resistor tolerance (low for the category), 35 ppm/°C nominal temperature coefficient, 40 Ω typical wiper resistance at the ends of the array, up to ±6 mA continuous current density on the A/B/W pins, and 3 MHz I²C SCL clock. Non-volatile memory retains wiper and user data across power cycles, and an integrated soft-reset function reloads defaults on demand. The 16-lead LFCSP (3 × 3 mm) footprint saves board area over TSSOP-16 alternatives. Architecturally, the AD5142A integrates two independent CMOS resistor ladders with EEPROM-backed wiper latches, an I²C slave decoder, and a charge-pump-driven EEPROM write path. The internal ladder uses string-resistor topology with CMOS transmission-gate wiper switches, achieving low wiper resistance and fast settling. Read-back of the wiper register and EEPROM contents is supported through the same I²C bus. Typical applications include precision gain adjustment in instrumentation amplifiers, LCD contrast/brightness trimming, programmable voltage references, laser-driver bias calibration, and automotive audio volume/tone control. It is also used in industrial process control loops where mechanical pots must be eliminated to resist vibration. Design consideration: place the AD5142A close to the node being trimmed to minimize leakage/parasitic pickup on the wiper, and respect the absolute maximum A/B/W current of ±6 mA — exceeding this degrades the internal switch contacts. Use proper I²C pull-ups (typically 2.2 kΩ to 10 kΩ depending on bus capacitance and VDD). This page synthesizes distributor pricing, drop-in LFCSP-16 alternatives, and practical design notes not found in the bare manufacturer datasheet, supporting rapid engineering decisions.

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AD5142ABCPZ100-RL7

AD5142ABCPZ100-RL7 - 100kΩ Dual 256-Tap I²C Nonvolatile DigiPOT | Analog Devices

The Analog Devices AD5142ABCPZ100-RL7 is a dual-channel, 256-position, nonvolatile digital potentiometer (DigiPOT) with 100 kΩ nominal end-to-end resistance, supplied in a 16-lead LFCSP (3 mm x 3 mm) package on 7 kmm reel. Each channel integrates a fixed resistor ladder with 256 taps, an I²C-compatible digital interface, and on-board EEPROM that retains the wiper position across power cycles without external circuitry. What is a digital potentiometer? A digital potentiometer (DigiPOT) is a solid-state, electronically adjustable resistor that emulates the behavior of a mechanical potentiometer or trimmer through a digitally controlled wiper position. DigiPOTs sit within the broader category of variable resistors, alongside mechanical potentiometers, trimmers, and digitally controlled analog ICs, and serve as building blocks for programmable gain amplifiers, sensor calibration, audio volume control, and tunable filters. Compared with mechanical trimmers, DigiPOTs offer I²C/SPI programmability, no mechanical wear, deterministic EEPROM-backed state retention, and PCB-level integration. Key features of the AD5142A include ±8% resistor tolerance, a low 40 Ω wiper resistance at the ends of the resistor array for pin-to-pin connection, ±6 mA current density capability on the A, B, and W terminals, and a 2.3 V to 5.5 V single-supply operating range that is compatible with 3.3 V and 5 V microcontrollers. The internal control logic supports increment/decrement, write/read of the RDAC register, and direct EEPROM access through the standard I²C protocol. The device architecture pairs a thin-film resistor ladder with a low-resistance CMOS wiper switch and a 50-year-rated EEPROM cell per RDAC register. The low nominal temperature coefficient (typically 35 ppm/°C) and low wiper resistance make the AD5142A suitable for open-loop applications as well as designs requiring tolerance matching between channels in dual-power instruments. Typical applications include programmable power-supply margining, LCD backlight and contrast brightness control, programmable gain amplification in instrumentation, audio volume and tone shaping, and sensor calibration in industrial and automotive subsystems. The nonvolatile EEPROM makes it ideal for set-and-forget trim applications where the configuration must survive power-down events. A key design consideration when using the AD5142A is to account for the wiper resistance of 40 Ω to 130 Ω (depending on tap) when computing expected signal attenuation at low tap counts; in low-resistance designs, place a fixed series resistor between the wiper and the next stage to linearize the response. Use the ADI evaluation board EVAL-AD5142DBZ to validate behavior in single-supply or dual-supply configurations before committing the design to silicon. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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AD5142WBCPZ10-RL7

AD5142WBCPZ10-RL7 - 10kΩ Dual 256-Tap SPI NVM DigiPot | ADI

The Analog Devices AD5142WBCPZ10-RL7 is a dual-channel, 256-position, nonvolatile (NVM) digital potentiometer with a nominal end-to-end resistance of 10 kΩ, SPI digital interface, and ±8% guaranteed resistor tolerance, housed in a 16-lead LFCSP (3 mm × 3 mm) package with an exposed pad. A digital potentiometer (DigiPot) is a solid-state variable resistor whose wiper position is set by a digital command rather than by mechanical movement. In the system hierarchy, DigiPots sit between mechanical potentiometers/trimmers and analog signal-conditioning chains (gain, offset, bias), functioning as programmable resistors used for calibration, trim, and adaptive control. Because the AD5142 stores the wiper position in onboard EEPROM, the part retains its setting through power cycles, eliminating the need for software re-initialization after every reset and enabling true plug-and-play calibration in factory-trimmed modules. Key features include a 10 kΩ nominal resistance, 256 tap points per channel (resolution ≈ 39 Ω per LSB), SPI-compatible serial interface up to 50 MHz, ±8% end-to-end resistance tolerance, ±6 mA current handling on the A, B, and W terminals, and AEC-Q100 Grade 1 automotive qualification (suffix "W"). The integrated nonvolatile memory supports up to 50,000 write cycles per EEPROM cell, suiting production-line calibration and field-reconfigurable systems. Internally, the AD5142 uses a chain of 256 polysilicon resistors with CMOS transmission-gate switches steered by an EEPROM-backed shift register. The SPI interface exposes a 16-bit command word (3 address + 8 data + control bits), allowing readback of both the volatile RDAC register and the nonvolatile EEPROM image. The "WB" prefix denotes the wide-temperature automotive grade operating from -40 °C to +125 °C. Typical applications include automotive infotainment volume/tone control, programmable gain amplifiers, sensor calibration in ECU modules, programmable voltage references, and instrumentation gain trim. Because the part offers matched dual channels in a tiny 3×3 mm LFCSP, designers can replace two mechanical trimmers with a single I²C-less SPI device, saving board area and enabling fully automated end-of-line calibration. When designing with this device, decouple VDD/VSS with a 0.1 µF ceramic capacitor placed within 2 mm of the supply pin and use a 4-layer PCB with a continuous ground plane tied to the exposed pad to keep thermal resistance low. Account for wiper resistance (~50–100 Ω typical) when computing total end-to-end resistance at low tap counts, and verify that downstream load impedances stay above 1 kΩ to prevent distortion. This page synthesizes current distributor pricing (DigiKey, Mouser, Octopart), pin-compatible ADI drop-in alternatives, and practical PCB/thermal design notes not collected in the manufacturer datasheet alone.

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AD5162BRMZ10

AD5162BRMZ10 - Dual 10kΩ 256-Tap SPI Digital Potentiometer | Analog Devices

The Analog Devices AD5162BRMZ10 is a dual-channel, 256-position, SPI-compatible digital potentiometer with 10 kΩ end-to-end resistance, housed in a compact 10-pin MSOP (RM-10) package measuring 3 mm × 4.9 mm. It operates from a single 2.7 V to 5.5 V supply and provides ±2.5% resistor tolerance with 5 µs typical settling time on power-up. Each channel performs the same electronic adjustment function as a 3-terminal mechanical potentiometer while adding digital control, non-volatile-free wiper memory, and a standard 3-wire SPI serial interface. A digital potentiometer (also called a DigiPOT or RDAC) is a solid-state device that emulates the behavior of a mechanical potentiometer through a resistor ladder network and CMOS switches controlled by a digital interface. Unlike mechanical pots, DigiPOTs offer high resolution, immunity to vibration, and direct microprocessor control, making them ideal for programmable gain, calibration, and trimming in systems where space and reliability matter. Key features of the AD5162BRMZ10 include a 50 ppm/°C temperature coefficient on the resistor ladder, a wiper resistance of 50 Ω typical, and a maximum wiper current of 6 mA per channel. Independent SPI control allows simultaneous or sequential wiper updates across both channels, and the wide operating temperature range of -40°C to +125°C supports automotive and industrial environments. The internal architecture uses a precision thin-film resistor network paired with CMOS transmission gates, providing low noise and stable ratiometric accuracy. Device-to-device matching is process-lot dependent and may vary by up to ±30%, so designs requiring tight matching should calibrate at production. Typical applications include programmable gain amplifiers, LCD contrast adjustment, audio volume control, sensor calibration, and programmable voltage references. The 10-pin MSOP footprint makes it well-suited for space-constrained PCB designs where a mechanical potentiometer cannot be used. When designing with this device, ensure the wiper current stays within the absolute maximum rating of 6 mA and place 0.1 µF bypass capacitors close to VDD to minimize digital noise coupling into the analog resistor ladder. This page synthesizes distributor pricing, drop-in ADI alternatives, and practical design guidance not collected in any single manufacturer document.

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AD5174BRMZ-10

AD5174BRMZ-10 - 10kΩ 1024-Tap SPI Digital Rheostat | Analog Devices

The Analog Devices AD5174BRMZ-10 is a single-channel, 1024-position digital rheostat with 10 kΩ nominal end-to-end resistance and 50-times programmable nonvolatile memory (50-TP), housed in a 10-lead MSOP (RM suffix) package. It combines industry-leading variable-resistor performance with SPI serial interface and NVM, supporting both single-supply (2.7 V to 5.5 V) and dual-supply (±2.5 V to ±2.75 V) operation. The part is specified over the extended industrial temperature range of -40 °C to +125 °C. A digital potentiometer (or digital rheostat) is a solid-state, electronically controllable resistor whose wiper position is set by a digital word rather than by a mechanical actuator. Internally it consists of a string of equal-value resistor segments with CMOS transmission-gate switches that connect the wiper terminal to a tap point; the device therefore behaves like a mechanical trim pot but without the mechanical wear, vibration sensitivity, or hand-tuning labor of a true potentiometer. Digital pots sit in the broader hierarchy: digital rheostat -> digital potentiometer -> programmable resistor -> data-acquisition/signal-conditioning IC -> semiconductor. Nonvolatile memory (EEPROM or fuse-based) added on-chip allows the wiper setting to survive power cycles, eliminating software re-initialization at every boot. Key specifications of the AD5174BRMZ-10 include 1024 tap points (≈10-bit resolution, ~0.1% step size), ±1 LSB DNL, ±2 LSB INL (max), 5 kΩ resistor tolerance (max), 50-times writable NVM, an SPI-compatible serial interface up to 25 MHz, and a wiper resistance of 50 Ω (typical). The 10-lead MSOP package provides a compact 3 mm × 3 mm footprint with industry-standard pinout, making the part a drop-in compatible variant of the AD5174 family across multiple resistance options. The AD5174 uses a CMOS architecture with on-chip EEPROM cells storing the last wiper position. Its 50-times programmable memory is suitable for production calibration, gain trimming, and LCD contrast adjustment where the value must be retained across power cycles. The dual-supply mode enables true ground-referenced bipolar signal handling, useful in audio and instrumentation signal paths. Typical applications include precision gain control in instrumentation amplifiers, LCD contrast adjustment, laser driver bias trimming, programmable voltage references, audio attenuators, and industrial control calibration. The wide supply range and SPI interface simplify integration into microcontroller-based designs that lack analog outputs. When designing with the AD5174BRMZ-10, observe the wiper-current limit (≤ ±6 mA continuous) to avoid long-term drift of the on-chip resistors. Decouple VDD/VSS with 0.1 µF ceramic capacitors placed within 3 mm of the supply pins, and place a pull-up resistor on the open-drain SDO line per the datasheet recommendation. The wide 2.7 V–5.5 V supply range enables direct connection to 3.3 V or 5 V microcontrollers without level shifters. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, parametric comparison tables, and practical design notes not consolidated in the manufacturer datasheet.

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AD5204BRUZ10

AD5204BRUZ10 - 10kΩ 4-Ch 256-Tap SPI Digital Potentiometer | ADI

The Analog Devices AD5204BRUZ10 is a 4-channel, 256-position digitally controlled variable resistor (VR) housed in a 24-pin TSSOP package, with an end-to-end resistance of 10 kΩ and a 3-wire SPI-compatible serial interface. Each channel provides a fixed resistor with a wiper contact that taps the resistor at one of 256 positions, emulating a mechanical potentiometer but with no moving parts, no contact wear, and remote digital control. The nominal resistance tolerance is ±30%, supply voltage range is 2.7 V to 5.5 V (single) or ±2.3 V to ±2.7 V (dual), and the operating temperature range spans −40 °C to +85 °C. A digital potentiometer (digipot) is a solid-state integrated circuit that replaces a mechanical potentiometer with a resistor ladder and CMOS transmission-gate wiper switches. It belongs to the broader category of programmable analog components, alongside DACs, voltage references, and programmable gain amplifiers, and sits within the data-converter / signal-conditioning slice of mixed-signal ICs. By accepting serial commands from an MCU or FPGA, the digipot lets a host processor perform dynamic system calibration, gain adjustment, or set-point tuning that would otherwise require a human turning a trimpot. Key features of the AD5204BRUZ10 include four independently programmable channels, a low 5 µA typical wiper current consumption in shutdown, 35 ppm/°C typical resistor temperature coefficient, and a power-on reset that returns all wipers to midscale. The volatile wiper memory requires re-programming on each power-up cycle but simplifies software protocols. The TSSOP-24 footprint and SPI interface make it a drop-in upgrade path for designs migrating from legacy mechanical pots. Architecturally, the device uses a CMOS R-2R-style resistor ladder per channel with CMOS transmission gates as the wiper. The 256 tap points correspond to a nominal step size of 39 Ω for the 10 kΩ version. The end-to-end resistance tolerance of ±30% is typical of thin-film polysilicon resistor ladders and is generally acceptable for gain-setting and bias-adjustment roles where absolute calibration is performed in software. Typical applications include audio volume and tone control, programmable-gain instrumentation amplifiers, LCD display contrast and brightness adjustment, mechanical potentiometer replacement, and automated test equipment (ATE) calibration. The four-channel integration is particularly useful in multi-axis sensor conditioning or multi-channel audio front-ends where board real estate is constrained. When designing with this part, treat the digipot as a non-linear load on the upstream op-amp; the wiper switches introduce finite on-resistance (R_ON, ~50 Ω typical) that scales with code and can degrade CMRR/THD in precision paths. Decouple VDD/VSS with 0.1 µF ceramic capacitors placed within 5 mm of the supply pins. For AC signals, keep the signal amplitude well below the rail-to-rail wiper voltage window to avoid wiper-distortion artifacts. This page synthesizes distributor pricing, drop-in alternatives in the same TSSOP-24 package, and practical design notes not found in the manufacturer datasheet alone.

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AD5206BRUZ10

AD5206BRUZ10 - 6-Ch 10kΩ 256-Tap SPI Digital Potentiometer | ADI

The Analog Devices AD5206BRUZ10 is a 6-channel, 256-position digitally controlled variable resistor (digital potentiometer or DigiPot) with 10 kΩ end-to-end resistance per channel, communicating over a 3-wire SPI-compatible serial interface and housed in a 24-pin TSSOP (RU-24) surface-mount package. Each of the six independent RDAC channels contains a fixed resistor string with a CMOS wiper contact, providing 8-bit (256-step) resolution at ±30% nominal resistance tolerance, with power-on preset to midscale. A digital potentiometer is a solid-state semiconductor device that emulates the function of a mechanical potentiometer or variable resistor by using an array of switched resistive elements controlled through a digital interface. Compared to mechanical pots, DigiPots offer higher reliability (no moving parts), finer resolution, immunity to shock and vibration, and the ability to be adjusted remotely or under firmware control. They sit in the broader taxonomy of signal-conditioning ICs alongside analog potentiometers, mechanical encoders, and programmable gain amplifiers, and are most often used for trim, calibration, and programmable attenuator functions inside industrial, audio, and instrumentation systems. Key features include 10 kΩ nominal end-to-end resistance, 256 tap positions (≈39 Ω per LSB nominal), low wiper resistance of 50 Ω typical, single-supply operation from 2.7 V to 5.5 V or dual-supply operation from ±2.3 V to ±2.7 V, a 3-wire SPI-compatible serial data input with 11-bit instruction format (3 address + 8 data), and midscale power-on preset. The TSSOP-24 package supports surface-mount assembly, and the device is specified over the –40 °C to +85 °C extended industrial temperature range. Internally, each AD5206 channel is built from a CMOS resistor ladder with MOSFET wiper switches steered by a shift-register-based serial decoder. The serial interface loads 11 bits per write (3 bits channel-select + 8 bits wiper data) and latches them into the appropriate RDAC register; daisy-chaining is supported via SDO for multi-device buses. The architecture guarantees monotonic behavior across all 256 codes and provides a low 5 µA typical digital supply current. Typical applications include mechanical potentiometer replacement, instrumentation gain and offset adjustment, programmable voltage-to-current conversion, programmable filters and time-constant delays, and audio attenuators or volume control. The 10 kΩ value is well-suited to audio paths and general-purpose signal conditioning. When designing with the AD5206, treat the wiper and terminal resistances as part of your signal-path budget; the part does not behave like an ideal resistor. Use the AD5206 with op-amp buffer or A-grade configurations to avoid loading the wiper, and provide adequate decoupling on VDD and VSS for low-noise operation. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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AD5214TD/883B

AD5214TD/883B - 12-Bit SAR ADC, Military Grade | Analog Devices

The AD5214TD/883B is a 12-bit successive approximation analog-to-digital converter (ADC) from Analog Devices, designed for high-reliability military and aerospace applications. It features a conversion time of 13 microseconds and operates over the full military temperature range of -55°C to +125°C. The device is packaged in a 24-pin ceramic dual-in-line package (CDIP) with through-hole mounting, ensuring robust mechanical and thermal performance in harsh environments. With a maximum supply current of 68 mA, it balances speed and power efficiency for precision data acquisition systems. An analog-to-digital converter (ADC) is a critical component in electronic systems that converts continuous analog signals into discrete digital values for processing by microcontrollers, DSPs, or FPGAs. The successive approximation register (SAR) architecture used in the AD5214TD/883B is favored for its high speed and low power consumption compared to other ADC types like delta-sigma or pipeline converters. SAR ADCs are widely used in industrial control, medical instrumentation, and military avionics where accurate and fast conversion is essential. Key features of the AD5214TD/883B include 12-bit resolution with 0.0122% integral linearity error (EL), ensuring high accuracy for precision measurements. The device supports both serial and parallel output interfaces, providing flexibility in system design. The hybrid technology construction and military temperature grade make it suitable for mission-critical applications where reliability is paramount. The CDIP24 package offers excellent thermal dissipation and protection against environmental stress. Technically, the AD5214TD/883B employs a charge redistribution SAR architecture with an internal track-and-hold circuit, enabling accurate sampling of input signals up to the Nyquist frequency. The conversion process is initiated by a start command, and the 12-bit result is available on parallel output lines or shifted out serially. The device operates from a single +5V supply, simplifying power design. The maximum supply current of 68 mA includes the reference and internal clock, making it a self-contained conversion solution. Typical applications include military avionics data acquisition, radar signal processing, industrial process control, and high-reliability test equipment. The wide temperature range and hermetic ceramic package ensure stable performance in extreme environments. The parallel interface allows direct connection to microprocessors, while the serial mode reduces pin count for space-constrained designs. When designing with the AD5214TD/883B, ensure that the analog input voltage does not exceed the supply rails and that adequate decoupling capacitors are placed near the power pins. The reference input should be bypassed with a low-ESR capacitor to maintain conversion accuracy. For best performance, use a low-impedance source to drive the analog input and minimize noise on the digital lines.

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AD5248BRMZ50-RL7

AD5248BRMZ50-RL7 - Dual 50kΩ 256-Tap I²C Digital Potentiometer | Analog Devices

The Analog Devices AD5248BRMZ50-RL7 is a dual-channel, 256-position, I²C-compatible digital potentiometer with 50 kΩ end-to-end resistance per channel, packaged in a compact 10-lead MSOP (3.0 mm × 4.9 mm). Each RDAC channel contains a fixed resistor string with a wiper contact that is digitally controlled through the I²C bus, providing a solid-state replacement for mechanical potentiometers in space-constrained designs. The AD5248 features dedicated AD0 and AD1 package address decode pins that allow up to four AD5248 devices to share a single I²C bus without external logic. A digital potentiometer is an integrated circuit that emulates the function of a three-terminal mechanical potentiometer using an array of resistive elements with CMOS switches. Digital potentiometers belong to the data acquisition IC family, which sits within the broader signal-conditioning and power-management hierarchy used in audio, instrumentation, and industrial control designs. Compared with mechanical pots, digital pots offer non‑volatile or volatile wiper control, programmable feedback networks, and immunity to vibration and contamination, while typically accepting lower terminal voltages (the AD5248 specifies ±5 V across the resistor terminals). Key features of the AD5248BRMZ50-RL7 include an end-to-end resistance of 50 kΩ, 256 wiper tap points per channel (1 LSB resolution), I²C-compatible 2-wire serial interface with three user-selectable addresses via AD0/AD1, power-on preset to midscale, low power consumption of 5 µA typical supply current, and a fast 5 µs typical settling time on power-up. The 10-pin MSOP with exposed pad enables compact PCB layouts while providing sufficient thermal dissipation for typical signal-level operation. Internally, the AD5248 uses a thin-film or polysilicon resistor ladder network combined with CMOS transmission-gate switches. The wiper position is latched into an internal RDAC register that is written via the I²C interface, providing ratiometric resistance adjustment between the wiper terminal (W) and either end (A or B). Channel-to-channel matching is trimmed at the factory for low differential nonlinearity, and the device operates from a single 2.7 V to 5.5 V supply. Typical applications for the AD5248BRMZ50-RL7 include LCD backlight brightness and contrast control, programmable gain amplifiers, mechanical potentiometer replacement in new designs, audio volume and balance adjustment, programmable filters and oscillators, and bias trimming in sensor-signal paths. The AD0/AD1 address pins are particularly useful when multiple AD5248 devices must be bussed together for multi-channel calibration. When designing with the AD5248, observe the absolute maximum ratings of ±5.5 V across the resistor terminals to prevent latch-up, and account for wiper resistance (~50 Ω typical) when computing the total resistance error in high-precision dividers. Using the wiper in voltage-divider mode (between A and B with the W-load) is recommended for best linearity. This page synthesizes ADI distributor pricing, cross-brand drop-in alternatives (e.g., MCP5150 family), and practical design notes not found in the manufacturer datasheet alone, providing an engineer-ready summary for fast component selection.

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AD5252BRUZ50

AD5252BRUZ50 - Dual 256-Tap 50kΩ I2C EEMEM DigiPOT | ADI

The Analog Devices AD5252BRUZ50 is a dual-channel, 256-position, I2C-compatible, nonvolatile memory (EEMEM) digital potentiometer (DigiPOT) with 50 kΩ end-to-end resistance, supplied in a 14-lead TSSOP (RU-14) package. The BRUZ50 suffix indicates the I2C slave address variant and 50 kΩ nominal resistance. Each channel provides 256 resistive steps with linear taper, ±20% resistance tolerance, and on-chip EEPROM that stores wiper position with write-protect, retaining settings through power cycles. What is a digital potentiometer? A digital potentiometer (DigiPOT) is a solid-state, digitally controllable variable resistor that emulates the wiper action of a mechanical trimpot or potentiometer. DigiPOTs sit within the broader hierarchy of programmable resistors and integrated mixed-signal ICs, communicating via serial interfaces such as I2C or SPI. Compared to mechanical potentiometers, DigiPOTs eliminate physical wear, allow remote/automated adjustment, and integrate memory for nonvolatile setpoint storage. Key features include 256 positions per channel (8-bit resolution), 100 kΩ EEMEM endurance with write-protect, I2C-compatible 2-wire serial interface, predefined linear increment/decrement commands, ±6 dB step change commands, synchronous or asynchronous dual-channel update, and selectable slave addresses via AD0/AD1 pins (up to 4 devices on one bus). The RDAC register provides direct wiper programming for real-time adjustment. The AD5252 architecture pairs two RDAC resistor arrays with EEMEM, a precision bandgap-derived reference, and an I2C slave interface. The wiper resistance, wiper-on-resistance matching, and low temperature coefficient suit instrumentation, audio, and industrial control applications where long-term setting stability is required. Typical applications include LCD display brightness and contrast control, mechanical potentiometer replacement, programmable gain amplifiers, programmable filters and delays, transducer calibration, audio volume control, and RF bias adjustment. The I2C interface allows host MCU control, while the nonvolatile memory preserves calibration data across power cycles. When designing with this device, observe the absolute maximum VDD of 7 V, use 0.1 µF decoupling close to VDD/GND, and respect the dual-supply mode requirement of ±2.25 V to ±2.75 V or single-supply 2.25 V to 5.5 V. EEMEM writes require tWR (write cycle time) per the manufacturer datasheet; verify timing when programming in-loop. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes not found in the standalone manufacturer datasheet, accelerating component selection and PCB bring-up.

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AD5258BRMZ1-R7

AD5258BRMZ1-R7 - 1kΩ 64-Tap I²C Nonvolatile DigiPot | ADI

The Analog Devices AD5258BRMZ1-R7 is a 1 kΩ end-to-end, 64-position, nonvolatile digital potentiometer (DigiPOT) in a compact 10-pin MSOP (3 mm × 4.9 mm) package. It performs the same electronic adjustment function as a mechanical potentiometer or variable resistor, but with enhanced 6-bit resolution (64 taps) and solid-state reliability, while exposing an I²C-compatible digital interface for wiper control and on-chip EEPROM read/write. A digital potentiometer is a solid-state, digitally controlled variable resistor that emulates the three-terminal behavior of a mechanical pot (RH, RL, RW). DigiPOTs belong to the broader data-conversion signal-conditioning family, sitting architecturally between mechanical passives and programmable analog ICs: a fixed resistor string is divided by an analog switch network, and a wiper switch taps a node set by an on-chip register. Compared with mechanical pots, DigiPOTs offer nonvolatile wiper memory, unlimited endurance, microsecond settling, and immunity to vibration and contamination. Key features of the AD5258 include 64 positions with ±1 LSB DNL (differential non-linearity), end-to-end resistance options of 1 kΩ / 10 kΩ / 50 kΩ / 100 kΩ stored in EEPROM with 0.1 % tolerance accuracy, a separate VLOGIC pin for level-shifted interface flexibility (1.8 V–5.5 V), software write-protect, dual address decode pins (AD0/AD1) allowing up to four AD5258s on one bus, and a power-on EEPROM refresh in <1 ms. Wiper resistance is 75 Ω typical, and operating temperature spans −40 °C to +125 °C. Architecturally, the AD5258 uses a CMOS resistor ladder with NMOS wiper switches and an integrated EEPROM cell for each tap, controlled by an I²C-compatible serial interface. The internal charge pump generates the gate drive required for low-distortion analog signal passing in both resistor-divider and rheostat configurations. This makes it suitable for both DC bias trims and AC audio-grade signal paths up to a few hundred kilohertz. Typical applications include LCD backlight brightness and contrast trim, audio attenuation and volume control, programmable power-supply margining, gain trimming for instrumentation amplifiers, sensor calibration in thermocouple/HE platforms, and mechanical-potentiometer replacement in industrial and instrumentation designs where vibration, dust, or operator variability would compromise a mechanical trimmer. Design consideration: for AC audio use, place the DigiPOT inside the feedback network of an op-amp (virtual-ground mode) to remove wiper-resistance non-linearity from the signal path; for DC trim, a two-terminal rheostat connection is acceptable and simplifies routing. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone, with all specifications cross-checked against the official AD5258 datasheet.

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AD5258BRMZ1-RL7

AD5258BRMZ1-RL7 - 1kΩ 64-Tap I2C Nonvolatile DigiPot | ADI

The Analog Devices AD5258BRMZ1-RL7 is a nonvolatile, I²C-compatible 64-position digital potentiometer with 1 kΩ end-to-end resistance, housed in a compact 10-pin MSOP (RMZ) package. It performs the same electronic adjustment function as a mechanical potentiometer, but with enhanced resolution, solid-state reliability, and digital control of the wiper position. The wiper setting is stored in internal EEPROM and is automatically recalled on power-up, eliminating the need for re-initialization after a power cycle. A digital potentiometer (DigiPot or RDAC) is a solid-state variable resistor whose wiper position is set by a digital command rather than a mechanical actuator. DigiPots sit in the hierarchy: digital potentiometer → programmable resistor → data-conversion/peripheral IC → mixed-signal semiconductor. They replace mechanical trimmers in volume-production designs where software-driven calibration, remote adjustment, or dynamic trimming is required. Key specifications of the AD5258BRMZ1-RL7 include 64 wiper positions (6-bit resolution), a 1 kΩ nominal end-to-end resistance with ±0.1% tolerance stored in EEPROM, a 2-wire I²C-compatible serial interface, an auxiliary VLOGIC pin for mixed-voltage I/O, and software write-protect. Power-on EEPROM refresh is <1 ms, enabling rapid system startup. End-to-end resistance options in the family cover 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ. The internal architecture combines a precision thin-film resistor ladder with CMOS transmission-gate switches and a nonvolatile EEPROM shadow register. The I²C address is selectable via the AD0 pin, allowing two devices on the same bus. Per the AD5258 datasheet, current between Wiper W and Terminal B in the zero-scale state must be limited to a maximum pulse current of 20 mA to avoid degradation of the internal switch contact. Typical applications include LCD backlight brightness control, contrast and bias adjustment on displays, programmable gain amplifiers, RF power-detector calibration, audio volume control, and post-production trimming of precision sensors. Designers typically pair the AD5258 with a low-offset op-amp (e.g., AD8628) when used as an in-circuit trim element. When designing with the AD5258, add a 0.1 µF bypass capacitor close to VDD and respect the 20 mA wiper current limit. Note that DigiPots are not intended for high-current or high-voltage loads; they are optimized for signal-level adjustment and bias-setting roles in low-power analog paths. This page synthesizes distributor pricing, drop-in alternatives from the same MSOP-10 footprint family, and practical design notes that go beyond the manufacturer's datasheet, giving engineers a faster path from selection to qualified BOM line item.

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AD5258BRMZ10-R7

AD5258BRMZ10-R7 - 10kΩ 64-Tap I2C Nonvolatile DigiPOT | ADI

The Analog Devices AD5258BRMZ10-R7 is a 10 kΩ, 64-position, nonvolatile digital potentiometer (DigiPOT) housed in a compact 10-pin MSOP package with I²C-compatible interface. It provides 1 circuit of programmable resistance from end-to-end 10 kΩ with 64 tap points, while storing the wiper position in on-chip EEPROM so settings persist through power cycles. A digital potentiometer is a solid-state replacement for a mechanical potentiometer or variable resistor. Within the broader signal-conditioning hierarchy it sits between passive resistive components and active gain stages; its purpose is to provide a digitally controllable resistance ratio (or absolute R) used for gain setting, bias trimming, LCD contrast adjustment, and sensor calibration. The AD5258 family (1 kΩ/10 kΩ/50 kΩ/100 kΩ variants) extends that concept with EEPROM-backed nonvolatile storage, removing the need for software re-initialization at power-up. Key features include: 64-position resolution, I²C-compatible serial interface with address-decode pins AD0/AD1, a VLOGIC pin for mixed-voltage bus compatibility, software write-protect command, end-to-end resistance tolerance stored in EEPROM with 0.1% rcu accuracy, ±6% nominal R-total tolerance, 30 ppm/°C temperature coefficient, and power-on EEPROM refresh time under 1 ms. The device operates from 2.7 V to 5.5 V single supply with low quiescent draw. Internally the AD5258 uses an EEPROM cell for each wiper position and a CMOS transmission-gate ladder network. Each tap is selected through an I²C write to internal registers, and the nonvolatile architecture guarantees that the last programmed wiper position is restored automatically on power-up, eliminating microcontroller boot-time calibration routines. Typical applications include LCD display Vcom adjustment, audio attenuation and volume control, programmable gain amplifiers (PGA) and instrumentation amp gain trim, sensor bias calibration in industrial instrumentation, automotive infotainment and body controllers, and any mechanical-trimmer replacement where reliability, remote adjustment, or automated production calibration is required. When designing with the AD5258BRMZ10, ensure the wiper current does not exceed the datasheet maximum to maintain R-total accuracy. Use the VLOGIC pin when interfacing to 1.8 V or 3.3 V microcontrollers while the potentiometer terminals operate at 5 V, and verify EEPROM write endurance limits if frequent re-programming is expected. This page synthesizes distributor pricing, drop-in AD5258 same-family alternatives, and practical PCB / firmware design notes not found in the manufacturer datasheet alone.

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AD5258BRMZ100

AD5258BRMZ100 - 100kΩ 64-Tap I2C Nonvolatile DigiPot | ADI

The Analog Devices AD5258BRMZ100 is a nonvolatile, I²C-compatible 64-position digital potentiometer with 100 kΩ end-to-end resistance, supplied in a 10-pin MSOP (RM suffix) surface-mount package. It integrates EEPROM-backed wiper memory, two address-decoded AD0 pins (supporting up to four devices on one bus), and a separate VLOGIC pin for flexible logic-level interfacing between 2.7 V and 5.5 V domains. A digital potentiometer (DigiPOT) is a solid-state, electronically-controlled variable resistor that replaces a mechanical trimpot. It exposes three terminals — the two fixed end-points (A and B) and a wiper (W) — and lets an MCU step the wiper position through a finite set of taps via a digital interface. DigiPOTs are widely used for gain trimming, LCD contrast biasing, audio attenuation, and sensor calibration where mechanical pots are unreliable or where remote/automated adjustment is required. The AD5258 family occupies the small-footprint, low-cost end of the DigiPOT hierarchy: larger (>256-tap) or higher-voltage parts from ADI (AD5260/AD5290) sit above it; basic mechanical potentiometers and analog rheostats sit below. Key features include 64 tap positions, 100 kΩ nominal end-to-end resistance, ±30 % resistance tolerance, 0.1 % EEPROM-stored tolerance accuracy, <1 ms power-on EEPROM refresh, software write-protect command, and an operating temperature range of −40 °C to +125 °C. The MSOP-10 footprint is only 3 mm × 4.9 mm, making it one of the smallest nonvolatile DigiPOTs on the market. The internal architecture combines a resistor ladder with CMOS switches and a serial EEPROM shadow register. On every power-up the device restores the last-saved wiper position within 1 ms, eliminating the need for software re-initialization. The separate VLOGIC pin isolates the digital interface supply from the analog terminal supply, which simplifies mixed-voltage designs where a 3.3 V MCU controls a 5 V analog rail. Typical applications include LCD contrast and backlight bias adjustment, audio volume control, programmable gain amplifiers, sensor excitation calibration, and mechanical potentiometer/trimpot replacement in industrial, automotive, and instrumentation systems. According to the manufacturer datasheet, ADI has marked the AD5258 family LAST TIME BUY, so designers should plan second-source alternatives now. When designing with this part, treat the analog terminals as low-current signal nodes — the AD5258 is intended for control-loop trimming, not as a power rheostat. Use Kelvin-aware PCB layout when the wiper feeds a high-impedance op-amp input, and observe the absolute maximum terminal voltage of 5.5 V even when the device is unpowered. This page consolidates distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving a single reference point for AD5258BRMZ100 sourcing.

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AD5270BCPZ-100-RL7

AD5270BCPZ-100-RL7 - 100kΩ 1024-Tap SPI Digital Rheostat | ADI

The Analog Devices AD5270BCPZ-100-RL7 is a single-channel, 1024-position digital rheostat (digitally controlled variable resistor) with 100 kΩ nominal end-to-end resistance, housed in a 10-pin LFCSP-WD (3x3 mm) exposed-pad package. It features SPI serial interface control, ±1% end-to-end resistor tolerance error, 50-TP nonvolatile memory (NVM) for wiper position retention, and operates from a 2.7 V to 5.5 V single supply. What is a digital potentiometer/rheostat? A digital potentiometer (also called a digital rheostat or digipot) is a solid-state, electronically adjustable resistor implemented as a string of series-connected resistive elements with CMOS switches that tap off at programmable nodes. Compared to mechanical trimmers, digipots offer remote, microcontroller-controlled adjustment, no moving parts, higher reliability, and - in nonvolatile variants like the AD5270 - retention of the wiper position across power cycles without a microcontroller continuously writing the setting. Digital potentiometers occupy a position in the signal-chain taxonomy between passive components (resistors) and active analog ICs (variable-gain amplifiers). Key differentiating features of the AD5270BCPZ-100-RL7 include industry-leading 1% end-to-end resistor tolerance error (vs. the 20-30% typical of competing rheostats), 50-times-programmable (50-TP) NVM that allows wiper settings to be permanently written during calibration, and a low-temperature-coefficient architecture that maintains setting accuracy over -40°C to +125°C operation. The 1024-tap resolution provides ~0.1% per-step adjustment granularity, making fine calibration of analog signal chains possible in firmware. The AD5270 is built around a string of precision thin-film resistors with CMOS wiper switches, achieving low wiper resistance and excellent temperature stability. The 50-TP NVM uses fuse-link elements for permanent setting retention, after which subsequent writes are blocked - this prevents accidental overwrites in production. The exposed-pad package provides a low thermal-resistance path that keeps wiper-resistance drift minimal even under sustained write operations. Typical applications include precision programmable-gain instrumentation amplifiers, LCD display contrast/brightness control, laser-driver bias calibration, mechanical potentiometer and trimmer replacement, programmable voltage references, and audio attenuators. The 50-TP NVM is especially valuable in factory-trimmed industrial systems where calibration data must survive power-down. Design consideration: when replacing a mechanical trimmer with the AD5270, account for the limited wiper current (typically a few mA maximum) - the AD5270 cannot source/sink large currents or be used as a true power rheostat; it is intended for signal-level adjustment where it presents a high impedance to the surrounding circuit. This page synthesizes 2026 distributor stock and lead-time, drop-in compatible alternatives, and practical calibration-circuit design notes not found in the manufacturer datasheet alone.

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AD5270BCPZ-20

AD5270BCPZ-20 - 20kΩ 1024-Tap SPI Digital Rheostat | ADI

The Analog Devices AD5270BCPZ-20 is a single-channel, 1024-position digital rheostat with 20 kΩ nominal end-to-end resistance, less than 1% resistor tolerance error, and 50-TP (fifty-time programmable) nonvolatile memory, housed in a 10-lead LFCSP-WD (3 mm × 3 mm) package with an exposed pad. It is interface-compatible via SPI and offers 5 V single-supply operation with a rheostat-mode wiper resistance of approximately 35 Ω to 70 Ω, making it suitable for precision analog adjustment in compact systems. A digital rheostat (also called a digital potentiometer or RDAC) is a solid-state variable resistor whose wiper position is set by a digital command instead of a mechanical knob. Internally it is implemented as a string of resistor segments plus MOS switches that connect the wiper to one of the taps; with 1024 taps, the AD5270 achieves roughly 10-bit resolution and supports fine trimming that would otherwise require a manual trim pot. Unlike mechanical trimmers, the wiper position survives power-down thanks to integrated 50-TP EEPROM, allowing the part to be used in factory-calibrated, set-and-forget designs. Key features include 1024-position resolution, 20 kΩ nominal resistance (with -10 and -100 variants also offered), less than 1% end-to-end resistor tolerance error, 50-TP nonvolatile memory for wiper position retention, a standard SPI serial interface, and single 5 V supply operation. The compact 3 mm × 3 mm LFCSP-10 footprint is drop-in compatible with the AD5271 family member, simplifying PCB reuse across resolutions. The exposed pad provides a low-thermal-resistance path, supporting continuous operation across the -40 °C to +125 °C extended industrial temperature range. The architecture combines a precision thin-film resistor string with CMOS switches and on-chip 50-TP EEPROM. The thin-film process delivers the low temperature coefficient and tight absolute tolerance, while the nonvolatile memory allows the part to remember its wiper position through power cycles without requiring continuous software updates. SPI command words are interpreted on-chip to select one of 1024 wiper positions, with readback capability for verifying the stored setting. Typical applications include programmable gain amplification, precision reference adjustment, laser-diode bias trimming, audio volume control, sensor calibration, and instrumentation scaling. Because the part retains its setting in nonvolatile memory, it is well suited to factory-trimmed designs that must boot up with a calibrated state. When designing with this part, observe the absolute maximum wiper current of ±6 mA, decouple VDD with a 1 μF bypass capacitor close to the pin, and ensure the exposed pad is soldered to a sufficient copper pour for thermal dissipation. The 50-TP memory limit should be considered - designs requiring more than 50 writes over the product lifetime must avoid exceeding this threshold. This page synthesizes distributor pricing, drop-in AD5270/AD5271 family variants, and practical design notes that are not aggregated in the manufacturer datasheet.

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AD5272BRMZ-20-RL7

AD5272BRMZ-20-RL7 - 20kOhm 1024-Tap I2C Digital Rheostat | ADI

The Analog Devices AD5272BRMZ-20-RL7 is a single-channel, 1024-position digital rheostat (nonvolatile digital potentiometer) with 20 kOhm nominal end-to-end resistance, housed in a 10-pin MSOP (RM suffix) package supplied on a 7-inch reel. According to the ADI AD5272/AD5274 datasheet, the device integrates industry-leading variable resistor performance with 50-times-programmable (50-TP) nonvolatile memory (NVM), allowing the wiper position to retain its setting across power cycles. A digital rheostat (sometimes called a digital potentiometer or digipot) is a solid-state replacement for a mechanical potentiometer, providing a programmable two-terminal variable resistor that is controlled through a digital serial bus. It belongs to the broader family of programmable analog ICs sitting between passive components (resistors) and full data-acquisition chains, and is widely used where mechanical trimming is impractical: in calibration, gain setting, sensor linearization, and bias adjustment. Key features include 1024 tap points, 1% end-to-end resistor tolerance error, a 2.7 V to 5.5 V single-supply operating range, an I2C-compatible 2-wire serial interface supporting both standard (100 kHz) and fast (400 kHz) modes, and 50-times programmable nonvolatile memory with read-back. The rheostat mode (terminal W to terminal A or B) supports unipolar signal swing, and the device includes power-on preset to midscale. In terms of architecture, the AD5272 uses a CMOS resistor-array structure with a wiper that is digitally addressed and latched into NVM via the I2C bus. The 50-TP architecture provides a controlled write budget to ensure long-term data retention in EEMEM. Compared with purely volatile digipots, the integrated EEMEM eliminates the need for an external EEPROM and a separate programming step on every power-up. Typical applications include mechanical potentiometer replacement, instrumentation gain adjustment, programmable voltage-to-current conversion, laser-trim replacement, and RF attenuator biasing. The combination of 1% resistor tolerance and 50-TP NVM makes the part especially attractive where calibration is performed once at production and then re-used across multiple power cycles. When designing with the AD5272, observe the absolute-maximum terminal voltages (Vdd + 0.3 V and -0.3 V on W/A/B). For ac-coupled or bipolar signals, bias the rheostat inside the supply headroom. For best noise performance, use the lower-resistance variants or connect an external resistor in parallel only when the design explicitly accounts for the resulting ratiometric error. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes drawn from the AD5272/AD5274 datasheet that are not consolidated on any single distributor page.

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AD5272BRMZ-50-RL7

AD5272BRMZ-50-RL7 - 50kΩ 1024-Tap I2C Digital Rheostat | ADI

The Analog Devices AD5272BRMZ-50-RL7 is a single-channel, 1024-position digital rheostat with 50 kΩ end-to-end resistance, nonvolatile memory (NVM), and an I2C-compatible digital interface, supplied in a 10-lead MSOP package on tape and reel. According to the ADI datasheet, the device guarantees less than 1% end-to-end resistor tolerance error and offers a one-time programmable (50-TP) fuse that permanently freezes the wiper position, emulating a mechanical trimmer sealed with epoxy. A digital potentiometer (also called a digital rheostat or digipot) is a solid-state variable resistor whose wiper position is set through a digital command rather than a mechanical knob. It belongs to the broader category of data converters and digital signal conditioning ICs, sitting alongside ADCs and DACs in the signal-chain hierarchy of integrated circuits. The AD5272 combines a precision resistor array, a wiper switch network, and 50-TP nonvolatile memory in one die, allowing the wiper setting to survive power cycles without an external EEPROM. Key features include 1024 tap points (10-bit resolution), 50 kΩ nominal end-to-end resistance, an I2C serial interface that supports up to 400 kHz Fast Mode, a single supply range of 2.7 V to 5.5 V (or ±2.5 V dual supply), and an extended industrial operating temperature range of -40°C to +125°C. The 50-TP fuse command provides a hardware lock against software tampering once the calibration value is finalized, which is critical in safety-relevant and security-conscious designs. The internal architecture uses a thin-film resistor ladder with CMOS wiper switches, achieving low wiper resistance (typically 35 Ω to 70 Ω) and excellent temperature coefficient performance. The on-chip nonvolatile memory stores both the wiper position and the 50-TP lock bit, and the part is guaranteed for 50 TP write cycles and 50,000 wiper re-write cycles. The MSOP-10 footprint measures 3.0 mm × 3.0 mm, occupying roughly one-third of a SOIC-8 footprint while exposing all digital and analog terminals. Typical applications include precision gain adjustment in instrumentation amplifiers, LCD display contrast and backlight brightness control, laser diode bias calibration, mechanical trimmer replacement in new designs, programmable voltage references, and audio attenuators. The 50-TP lock makes it especially attractive for factory-calibrated end equipment where field re-calibration is undesirable. Designers should size the wiper current within the absolute maximum rating (typically a few mA) and add a small series resistor if the load injects transients into the wiper node. When used as a true rheostat (two-terminal variable resistor), tie the W and A or W and B terminals together; when used as a potentiometer (three-terminal voltage divider), use all three terminals for best linearity. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not aggregated on a single manufacturer or distributor page.

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