AD5201BRM10-REEL7

Overview

The AD5201BRM10-REEL7 is a single-channel, 33-position digital potentiometer manufactured by Analog Devices. It features a nominal end-to-end resistance of 10 kΩ with a temperature coefficient of 500 ppm/°C and a wiper resistance of 50 Ω to 100 Ω. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V or dual supplies of ±2.7 V. Control is achieved via a 3-wire SPI-compatible serial interface using CS, CLK, and SDI pins. Internal power-on circuitry presets the wiper to midscale (code 10H). A shutdown pin allows for microwatt power consumption by opening terminal A and shorting the wiper to terminal B.

Feature Summary

• 33-Position Resolution: 6-bit data word controls 33 distinct tap positions.
• 10 kΩ Nominal Resistance: Fixed end-to-end resistance with ±30% tolerance.
• 3-Wire SPI Interface: Serial control via Chip Select, Clock, and Data Input.
• Low Power Shutdown: Active-low SHDN pin reduces current to <5 µA.

Applications

• Mechanical Potentiometer Replacement
• Instrumentation Gain and Offset Adjustment
• Programmable Voltage-to-Current Conversion
• Line Impedance Matching

Procurement Notes

Verify the ordering suffix 'REEL7' indicates tape-and-reel packaging when sourcing components. Confirm the 'BRM' designation corresponds to the MSOP-10 package and industrial temperature range (-40°C to +85°C). Ensure the '10' suffix matches the required 10 kΩ resistance value for the specific circuit design.

Selection Notes

Select this component over the AD5200 if only 33 adjustment steps are sufficient, as it offers higher precision per step (lower DNL/INL) compared to the 256-position variant. Verify that the 10 kΩ nominal resistance fits the impedance requirements of the application, noting the ±30% manufacturing tolerance. Ensure the system logic levels are compatible with the specified VIH/VIL thresholds for the 3-wire interface.

Part Context

This part belongs to the AD5200/AD5201 family of programmable resistor devices. While the AD5200 provides 256 positions (8-bit), the AD5201 provides 33 positions (6-bit). Both share identical electrical characteristics regarding bandwidth, distortion, and power supply ranges, differing primarily in resolution and internal switch architecture.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify pin compatibility and electrical specifications against other Analog Devices digital potentiometers such as the AD5241 series if I2C interface is preferred.