Analog Devices Inc. AD5262BRUZ50

Overview

AD5262BRUZ50 from Analog Devices is a dual-channel, 256-position, SPI-compatible digital potentiometer with 50 kΩ end-to-end resistance, ±5.5 V dual-supply or +15 V single-supply operation, and 35 ppm/°C temperature coefficient-designed for precision gain/offset trimming in instrumentation and stereo audio level control.

For engineers reviewing the AD5262BRUZ50 datasheet, AD5262BRUZ50 pinout, AD5262BRUZ50 application, or AD5262BRUZ50 equivalent, this page delivers verified electrical specs, dual-RDAC timing behavior, TSSOP-16 package mapping, real-world use-value per application, and two validated alternative parts with documented functional trade-offs.

Technical Context

The AD5262BRUZ50 implements two independent 9-bit RDAC latches, each updated via a 4-wire SPI interface (CS, CLK, SDI, SDO) with address bit A0 selecting RDAC1 (A0=0) or RDAC2 (A0=1). It supports daisy-chaining through open-drain SDO and features power-on midscale preset (0x80) and active-low PR reset.

Each channel operates as either a rheostat (A–W or B–W) or potentiometer divider (A–W–B), with guaranteed monotonicity, ±½ LSB INL in potentiometer mode, and 310 kHz / 130 kHz / 30 kHz −3 dB bandwidth for 20 kΩ / 50 kΩ / 200 kΩ versions respectively-confirmed at VDD=+5 V/VSS=−5 V.

Key Specifications

Pinout & Package

AD5262BRUZ50 is housed in a 16-lead TSSOP package (4.4 mm × 5.0 mm, 0.65 mm pitch), RoHS-compliant, rated for −40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital potentiometer applications.

Compared with AD5262BRUZ50, AD5202BRUZ50 reduces channel count and feature set to cut cost and size, while MAX5487ETE+ sacrifices high-voltage capability for compact packaging-making AD5262BRUZ50 the sole option supporting 15 V operation, dual channels, and industrial tempco in one TSSOP-16 device.

Availability

AD5262BRUZ50 is available at Aetrix Electronics and suitable for instrumentation calibration, stereo audio systems, programmable references, and industrial line-termination applications requiring stable component supply across extended temperature and voltage ranges.

Supply support for AD5262BRUZ50 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, serving industrial, communications, automotive, and healthcare markets.

The AD526x family was designed specifically for precision analog trimming and replacement of mechanical potentiometers in harsh environments-emphasizing wide supply range, low tempco, and robust SPI interfacing for automated test and embedded control.

FAQ

What is the maximum supply voltage the AD5262BRUZ50 can withstand?

The AD5262BRUZ50 supports up to +16.5 V single-supply (VDD to GND) or ±5.5 V dual-supply operation, with absolute maximum ratings of VDD to GND = −0.3 V to +17 V and VDD to VSS ≤ 17 V. Exceeding these risks permanent damage. The AD5262BRUZ50 is uniquely rated among digital pots for true 15 V analog rail compatibility.

Does the AD5262BRUZ50 retain its wiper setting during shutdown?

Yes-the AD5262BRUZ50 retains its programmed wiper position in shutdown mode (SHDN low). In this state, Terminal A is open-circuited and W is connected to B, drawing ≤5 µA total current while preserving the RDAC latch contents. Upon exit from shutdown, the AD5262BRUZ50 resumes operation at the exact prior resistance value.

Can the AD5262BRUZ50 be used in bipolar AC signal paths?

Yes-the AD5262BRUZ50 supports true bipolar operation: VA, VB, and VW tolerate voltages from VSS to VDD, including AC signals centered at mid-rail (e.g., ±2.5 V swing with ±5 V supplies). Its terminals have no polarity restrictions relative to each other, enabling use in AC-coupled gain blocks and programmable filters without DC bias constraints.

What is the purpose of the VL pin on the AD5262BRUZ50?

The VL pin sets the logic voltage reference for digital inputs (CS, CLK, SDI, PR, SHDN). It must be tied to the same voltage as the controlling microcontroller's I/O supply (2.7 V to 5.5 V). This ensures correct VIH/VIL thresholds-e.g., at VL = 3.3 V, VIH = 2.1 V min and VIL = 0.6 V max-preventing misreads during SPI communication to the AD5262BRUZ50.

How does the AD5262BRUZ50 handle channel-to-channel matching?

The AD5262BRUZ50 guarantees ≤0.1% channel resistance matching (ΔRWB/RWB) between RDAC1 and RDAC2 when both are set to the same code (e.g., 0x80). This is measured at midscale and ensures highly correlated behavior-critical for differential circuits, balanced audio, or matched filter tuning where ratio accuracy matters more than absolute resistance.