Analog Devices Inc. AD5200BRMZ10

Overview

AD5200BRMZ10 from Analog Devices is a 256-position, 10 kΩ digital potentiometer in a 10-lead MSOP package, featuring 3-wire SPI interface, single/dual supply operation (2.7 V to 5.5 V or ±2.3 V), internal power-on midscale preset (80H), and shutdown mode with <5 µA supply current. It replaces mechanical potentiometers in precision gain/offset adjustment circuits.

For engineers reviewing the AD5200BRMZ10 datasheet, AD5200BRMZ10 pinout, AD5200BRMZ10 application, or AD5200BRMZ10 equivalent, this page delivers verified electrical specs, terminal roles, real-world use cases, and validated alternative options for instrumentation, programmable filters, and line impedance matching designs.

Technical Context

The AD5200BRMZ10 implements a resistor ladder architecture with 256 discrete tap points controlled via an 8-bit SPI register. Its wiper resistance is fixed at 50–100 Ω, and end-to-end resistance tolerance is ±30% with a 500 ppm/°C temperature coefficient. The device supports both rheostat (A–W or B–W) and potentiometer divider (A–W–B) configurations.

Internal power-on reset loads code 80H into the RDAC latch, placing the wiper at midscale. The SHDN pin opens Terminal A and shorts W to B, achieving microwatt shutdown while preserving latch state. Digital interface remains active during shutdown, enabling pre-load of new codes.

Key Specifications

Pinout & Package

AD5200BRMZ10 is housed in a 10-lead MSOP (RM-10) package, 3 mm × 3 mm × 0.85 mm, with exposed pad for thermal enhancement. Pin 1 marked with dot; pins numbered counterclockwise from top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5201BRMZ10 and MCP41010-I/P, AD5200BRMZ10 uniquely supports dual-supply operation and offers superior DNL (±0.25 LSB), making it optimal for precision instrumentation requiring monotonic response and rail-to-rail signal handling.

Availability

AD5200BRMZ10 is available at Aetrix Electronics and suitable for instrumentation gain control, programmable filters, and line impedance matching requiring stable component supply, long-term lifecycle assurance, and guaranteed industrial temperature performance (–40°C to +85°C).

Supply support for AD5200BRMZ10 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.

The AD5200/AD5201 family was designed specifically for replacing mechanical potentiometers in precision analog adjustment applications-emphasizing low tempco, guaranteed monotonicity, and robust SPI control in compact MSOP packages.

FAQ

What is the resolution and end-to-end resistance of AD5200BRMZ10?

The AD5200BRMZ10 provides 256-position resolution (8-bit) with a nominal end-to-end resistance of 10 kΩ ±30%. This means the wiper can be positioned at any of 256 discrete taps between terminals A and B, delivering step sizes of approximately 39 Ω per LSB under ideal conditions. The actual resistance between A and B may vary from 7 kΩ to 13 kΩ due to process tolerance, and the wiper adds 50–100 Ω in series depending on operating voltage. AD5200BRMZ10 maintains this specification across its full industrial temperature range.

Does AD5200BRMZ10 support dual-supply operation?

Yes, AD5200BRMZ10 supports true dual-supply operation with VDD ranging from +2.3 V to +2.7 V and VSS from –2.3 V to –2.7 V (sum ≤ 5.5 V). This enables use in bipolar signal paths-for example, AC-coupled amplifiers or symmetrical filter stages-where the A, B, and W terminals can swing above and below ground. The device guarantees full functionality and specified performance (including monotonicity and tempco) across this dual-rail range, unlike many competing digital pots limited to single-supply use.

How does the shutdown mode function in AD5200BRMZ10?

In shutdown mode (SHDN = low), AD5200BRMZ10 opens the connection at Terminal A and shorts the wiper (W) to Terminal B, reducing supply current to ≤5 µA. Crucially, the RDAC latch retains its last programmed code, so upon exiting shutdown (SHDN = high), the wiper immediately resumes the exact previous resistance setting-no reinitialization or host reload required. This behavior makes AD5200BRMZ10 ideal for power-gated subsystems in portable or always-on equipment where state retention and fast wake-up are essential.

What is the temperature coefficient of AD5200BRMZ10, and how does it affect performance?

AD5200BRMZ10 has a nominal resistance temperature coefficient of 500 ppm/°C for the A–B terminals. Over the full industrial range (–40°C to +85°C), this results in a maximum resistance drift of ±6.25% relative to 25°C value. In potentiometer divider mode, however, the voltage output tempco improves to ~15 ppm/°C because it depends on resistor *ratio*, not absolute values. Therefore, AD5200BRMZ10 delivers superior stability in gain-setting or reference-divider applications where ratio-matching matters more than absolute resistance.

Can AD5200BRMZ10 be used in rheostat mode, and what are the limitations?

Yes, AD5200BRMZ10 operates reliably in rheostat mode (e.g., A–W or B–W only), with wiper-to-terminal resistance calculated as R_WB(D) = (D × 10 kΩ)/255 + 50 Ω. Key limitations include: (1) maximum current through any terminal must not exceed ±20 mA to avoid switch degradation; (2) zero-scale resistance is 50 Ω (not 0 Ω) due to fixed wiper contact resistance; and (3) R_AB tolerance (±30%) propagates directly to R_WB/R_WA accuracy. These constraints are fully documented in the AD5200BRMZ10 datasheet and validated across temperature.