AD5207BRUZ50-RL7

Overview

The AD5207BRUZ50-RL7 is a dual-channel, 8-bit digital potentiometer IC from Analog Devices. It features two independent variable resistors with 256 tap positions and a nominal resistance of 50 kΩ. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V or a dual supply of ±2.2 V to ±2.7 V. It utilizes a 3-wire SPI-compatible serial interface for data input. Key electrical characteristics include a temperature coefficient of 500 ppm/°C, a wiper resistance of 100 Ω maximum, and a shutdown current of less than 5 µA. The unit is housed in a TSSOP-14 package.

Feature Summary

• Dual-channel architecture with 256 programmable positions per channel
• Nominal resistance of 50 kΩ with ±30% tolerance
• Low power consumption with 20 nA typical operating current and <5 µA shutdown current
• SPI-compatible 3-wire serial interface with daisy-chain capability via SDO pin

Applications

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

Procurement Notes

Verify the specific ordering suffix '-RL7' confirms tape and reel packaging containing 1,000 units. Confirm the 'B' grade indicates the industrial temperature range of -40°C to +125°C. Ensure the 'U' designation matches the required TSSOP-14 surface-mount package footprint for PCB integration.

Selection Notes

Select this component when a dual-channel solution is required to replace mechanical potentiometers in space-constrained designs. The 50 kΩ value suits applications requiring moderate impedance levels. Verify that the volatile memory type meets system requirements, as resistance values reset to midscale upon power loss unless maintained by external logic.

Part Context

This part belongs to the AD5207 family of 2-channel digital potentiometers. It serves as a drop-in replacement for similar devices like the AD8402 due to compatible addressing. The BRUZ50 variant specifically denotes the 50 kΩ resistance option within the broader AD5207 product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.