AD5160BRJZ50-RL7

Overview

The AD5160BRJZ50-RL7 is a single-channel, 256-position digital potentiometer from Analog Devices Inc., housed in an 8-lead SOT-23 package. It features a nominal end-to-end resistance of 50 kΩ with ±15% tolerance and a temperature coefficient of 45 ppm/°C. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, consuming a typical supply current of 3 µA. Control is achieved via a SPI-compatible 3-wire serial interface (CS, SDI, CLK) supporting clock frequencies up to 25 MHz. Upon power-up, the wiper position defaults to midscale.

Feature Summary

• 256-position adjustment with linear taper and 50 kΩ nominal resistance
• SPI-compatible 3-wire serial interface with 25 MHz maximum clock rate
• Low power consumption: 3 µA typical supply current at 5 V
• Wide operating temperature range from –40°C to +125°C

Applications

• Mechanical potentiometer replacement in new designs
• Transducer adjustment for pressure, temperature, position, chemical, and optical sensors
• RF amplifier biasing
• Gain control and offset adjustment circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated by the 'Z' suffix in the ordering guide. Ensure proper ESD handling procedures are followed during storage and assembly due to the sensitivity of CMOS inputs.

Selection Notes

Select this model when a 50 kΩ resistance value is required within the AD5160 family. Consider the SOT-23-8 package constraints for PCB layout. Verify that the system's SPI timing requirements meet the setup and hold time specifications defined in the datasheet. Evaluate thermal dissipation limits if operating near maximum junction temperatures.

Part Context

This component belongs to the AD5160 series of digitally controlled variable resistors. It serves as a solid-state alternative to mechanical potentiometers, offering enhanced resolution and reliability. The BRJZ50 variant specifically denotes the 50 kΩ resistance option within the standard industrial temperature grade lineup.

Replacement Considerations

Direct pin-compatible replacements include other AD5160 variants with different resistance values (e.g., AD5160BRJZ5-RL7 for 5 kΩ). For applications requiring non-volatile memory retention, consider the AD5292 series instead.