AD5207BRU50-REEL7

Overview

The AD5207BRU50-REEL7 is a dual-channel, 8-bit digital potentiometer with 256 tap positions and a nominal resistance of 50 kΩ. It operates on a single supply from 2.7 V to 5.5 V or a dual supply of ±2.2 V to ±2.7 V. The device features a 3-wire SPI-compatible serial interface for data input and includes a power-down mode consuming less than 5 µA. It is housed in a 14-pin TSSOP package and functions over an extended industrial temperature range of –40°C to +125°C.

Feature Summary

• Dual-channel architecture with 256 programmable positions per channel
• 50 kΩ nominal end-to-end resistance with ±30% tolerance
• 3-wire SPI-compatible serial control interface (SDI, CLK, CS)
• Active-low SHDN pin enables microwatt power shutdown state

Applications

• Mechanical potentiometer replacement
• Stereo channel audio level control
• Instrumentation gain and offset adjustment
• Programmable voltage-to-current conversion
• Line impedance matching

Procurement Notes

Verify the specific suffix 'REEL7' indicates tape and reel packaging containing 1,000 units. Confirm the 'B' grade designation corresponds to the specified operating temperature range of –40°C to +125°C. Ensure compatibility with the required 50 kΩ resistance value for the target circuit design.

Selection Notes

Select this component when a dual-channel digital solution is required with 50 kΩ resistance. The 8-bit resolution provides 256 discrete steps. Verify that the system logic levels are compatible with the 3-wire serial interface. Consider the 500 ppm/°C temperature coefficient if precise thermal stability is critical for the application.

Part Context

This part belongs to the AD5207 family of 2-channel digital potentiometers. Other variants in the series include models with 10 kΩ (AD5207BRU10) and 100 kΩ (AD5207BRU100) nominal resistances. All share the same pinout, interface, and electrical characteristics except for the fixed resistor value.

Replacement Considerations

The AD8402 is cited as a compatible product for drop-in replacement due to identical address bit compatibility. Verify that the substitute device supports the required 50 kΩ resistance and dual-channel configuration.