Analog Devices Inc. AD5262BRUZ200

Overview

AD5262BRUZ200 from Analog Devices is a dual-channel, 256-position digital potentiometer with 200 kΩ end-to-end resistance, ±5.5 V dual-supply or +15 V single-supply operation, and SPI-compatible 4-wire interface. It replaces mechanical potentiometers in precision gain/offset adjustment and stereo audio level control circuits where stable temperature coefficient (35 ppm/°C) and low wiper resistance (60–150 Ω) are required.

For engineers reviewing the AD5262BRUZ200 datasheet, AD5262BRUZ200 pinout, AD5262BRUZ200 application, or AD5262BRUZ200 equivalent, key selection criteria include dual independent RDAC channels, 9-bit serial address/data format, midscale power-on reset, shutdown mode with open-circuit A terminals, and guaranteed operation from −40°C to +85°C in 16-lead TSSOP.

Technical Context

The AD5262BRUZ200 implements two independent digitally controlled variable resistors (RDACs), each with a fixed 200 kΩ A-to-B terminal resistance and a wiper position set via 9-bit SPI command (1 address bit + 8 data bits). Its architecture supports both rheostat (A–W or B–W) and potentiometer divider (A–W–B) configurations with monotonic 8-bit resolution.

It features separate SHDN and PR pins: SHDN forces A-terminal open-circuit and W-to-B connection while preserving latch state; PR asserts active-low midscale preset (0x80) for fault recovery. The device operates with VL logic supply (2.7–5.5 V) decoupled from analog supplies (VDD/VSS), enabling mixed-voltage system interfacing.

Key Specifications

Pinout & Package

AD5262BRUZ200 is housed in a 16-lead thin shrink small-outline package (TSSOP) with 0.65 mm pitch, rated for −40°C to +85°C operation. Pin 1 is SDO; pin 16 is A2. All pins are surface-mount compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5262BRUZ50 and AD5260BRUZ200, the AD5262BRUZ200 uniquely balances high-voltage tolerance (+15 V), dual-channel independence, and 200 kΩ impedance for precision low-frequency voltage division - making it optimal for calibration-critical instrumentation rather than high-speed or single-channel use cases.

Availability

AD5262BRUZ200 is available at Aetrix Electronics and suitable for instrumentation gain control, stereo audio level adjustment, programmable voltage reference, and line impedance matching requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AD5262BRUZ200 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, with design and manufacturing facilities worldwide.

The AD5262 is part of Analog Devices' precision digital potentiometer product line, engineered for replacing mechanical trimmers in industrial, medical, and test equipment where reliability, temperature stability, and programmability are essential.

FAQ

What is the maximum supply voltage rating for AD5262BRUZ200?

The AD5262BRUZ200 supports a maximum single-supply voltage of +16.5 V (VDD to GND) and dual-supply operation up to ±5.5 V (VDD to VSS ≤ 15 V). Absolute maximum ratings specify VDD to GND ≤ +17 V and VSS to GND ≥ −7 V, but continuous operation beyond ±5.5 V or +16.5 V risks permanent damage. Always observe the 15 V sum limit between VDD and VSS for reliable long-term performance of AD5262BRUZ200.

How does the AD5262BRUZ200 handle power-on initialization?

The AD5262BRUZ200 features an internal power-on reset that automatically loads 0x80 into both RDAC latches at power-up, positioning each wiper at midscale (50% resistance). This behavior depends solely on the VL pin reaching valid logic level and requires no external sequencing. The PR pin provides identical midscale forcing at any time, making AD5262BRUZ200 suitable for systems requiring deterministic startup states without firmware intervention.

Can AD5262BRUZ200 operate with different logic and analog supply voltages?

Yes - AD5262BRUZ200 separates logic (VL = 2.7–5.5 V) and analog (VDD/VSS) supplies, allowing independent voltage domains. For example, VL can be 3.3 V for MCU interface while VDD/VSS runs at ±5 V for bipolar op-amp stages. This isolation prevents digital switching noise from modulating analog performance and enables AD5262BRUZ200 to interface seamlessly with mixed-voltage SoCs and FPGAs.

What is the function of the SHDN pin on AD5262BRUZ200?

The SHDN pin on AD5262BRUZ200 is an active-low control that places both RDACs into ultra-low-power shutdown mode (5 µA typical). In this state, all A terminals are open-circuited, W is connected to B, and the internal RDAC latch values are retained. Upon exit from shutdown, wiper positions restore instantly to their pre-shutdown settings - a key feature for battery-powered AD5262BRUZ200 applications requiring rapid wake-up without recalibration.

Is AD5262BRUZ200 pin-compatible with other members of the AD5260/AD5262 family?

No - AD5262BRUZ200 uses a 16-lead TSSOP package with dedicated pins for dual RDACs (A1/W1/B1 and A2/W2/B2), while the single-channel AD5260BRUZ200 uses a 14-lead TSSOP with different pinout (no A2/W2/B2). Though functionally related, they are not pin-compatible; board layout must match the specific variant. Always verify pin assignments in Figures 7 and 8 of the AD5262BRUZ200 datasheet before PCB design.