AD5252BRU10

Digital Potentiometers Overview

The AD5252BRU10 is a dual-channel, I²C-compatible digital potentiometer featuring 256-position resolution and nonvolatile memory (EEMEM). It offers a nominal resistance of 10 kΩ with ±20% tolerance at 25°C. The device operates on a single supply from 2.7 V to 5.5 V or a dual supply of ±2.25 V to ±2.75 V. Key electrical parameters include a typical power-on refresh time of 300 µs, an EEMEM rewrite time of 540 µs, and a bandwidth of 400 kHz for the 10 kΩ version. It supports direct read/write access to RDAC and EEMEM registers, wiper setting readback, and linear increment/decrement commands.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 256-step resolution per channel
• Nonvolatile memory stores wiper settings with write protection
• I²C serial interface with two target address decoding bits
• Patented resistance-tolerance storing function in EEMEM

Digital Potentiometers Applications

• Mechanical potentiometer replacement
• LCD panel VCOM adjustment
• White LED brightness adjustment
• Programmable gain and offset control

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet revision to confirm package type and temperature range. Ensure the I²C bus pull-up resistors are correctly sized for the operating voltage. Confirm that the system power supply can source sufficient current during EEMEM data storage cycles.

Digital Potentiometers Selection Notes

Select this component when dual-channel programmable resistance is required with persistent state retention. The 10 kΩ value suits general-purpose signal conditioning. Verify that the host controller supports the I²C protocol timing requirements, specifically the clock frequency limits and setup/hold times defined in the interface specifications.

Digital Potentiometers Part Context

This part belongs to the AD5251/AD5252 family of digitally controlled potentiometers. While the AD5251 provides 64 positions, the AD5252 variant offers higher precision with 256 positions. Both share identical pinouts and command sets, allowing for design flexibility within the same package footprint.

Digital Potentiometers Replacement Considerations

Public confirmed substitute part numbers: None listed.