AD5252BRUZ10-RL7

Digital Potentiometers Overview

The AD5252BRUZ10-RL7 is a dual-channel, I2C-compatible digital potentiometer featuring 256-position resolution per channel. It incorporates nonvolatile memory (EEMEM) to store wiper settings and resistance tolerance data, enabling automatic power-on restoration within 300 µs. The device supports single-supply operation from 2.7 V to 5.5 V or dual supplies of ±2.25 V to ±2.75 V. With a nominal resistance of 10 kΩ, it offers linear taper, ±20% tolerance at 25°C, and a temperature coefficient of 650 ppm/°C. Packaged in a TSSOP-14 surface-mount format, it includes 12 extra bytes of user-defined EEPROM storage.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 256-step digital control for each potentiometer.
• Nonvolatile EEMEM stores wiper positions and absolute resistance tolerance for precision applications.
• I2C serial interface with two address bits allowing four devices on a single bus.
• Supports synchronous/asynchronous updates, linear increment/decrement, and ±6 dB step commands.

Digital Potentiometers Applications

• Mechanical potentiometer replacement in automated systems
• LCD panel VCOM adjustment circuits
• White LED brightness control
• Programmable gain and offset control stages

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet revision to confirm package type and tape/reel specifications. Confirm RoHS compliance status as manufacturing processes may update component attributes over time. Ensure the supply voltage range matches the system requirements before integration.

Digital Potentiometers Selection Notes

Select this component when dual independent digital potentiometers are required with persistent state retention. The 10 kΩ value suits moderate impedance signal paths. Verify that the host microcontroller supports the I2C protocol and can provide the necessary pull-up resistors for SDA and SCL lines. Check thermal constraints for the TSSOP-14 package if high ambient temperatures are expected.

Digital Potentiometers Part Context

This part belongs to the AD5251/AD5252 family of digitally controlled potentiometers. While the AD5251 offers 64 positions, the AD5252 provides higher 256-position resolution. The 'BRU' designation indicates the industrial temperature grade and TSSOP-14 package, while 'Z10' specifies the 10 kΩ resistance value. The '-RL7' suffix typically denotes reel packaging for surface-mount assembly.

Digital Potentiometers Replacement Considerations

Direct pin-to-pin replacements include other variants within the AD5252 series with different resistance values (e.g., AD5252BRU1, AD5252BRU50, AD5252BRU100). Ensure the substitute maintains the same 256-position resolution and I2C compatibility if software registers are not modified.