AD5160BRJZ10-RL7

Overview

The AD5160BRJZ10-RL7 is a single-channel, 8-bit digital potentiometer with a nominal end-to-end resistance of 10 kΩ. It features 256 tap positions controlled via an SPI-compatible serial interface. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V and consumes a typical supply current of 3 µA to 8 µA. Key electrical specifications include a wiper resistance of 50 Ω to 120 Ω, a temperature coefficient of 45 ppm/°C for the resistor element, and a voltage divider temperature coefficient of 15 ppm/°C. It is housed in a compact SOT-23-8 package and supports an operating temperature range from –40°C to +125°C.

Feature Summary

• 256-position resolution with 8-bit SPI-compatible digital control interface
• Nominal resistance options including 10 kΩ with ±15% tolerance at 25°C
• Low power consumption with supply current typically between 3 µA and 8 µA
• Power-on preset function initializes the wiper to midscale

Applications

• Replacement for mechanical potentiometers in new designs
• Transducer adjustment for pressure, temperature, position, chemical, and optical sensors
• RF amplifier biasing circuits
• Gain control and offset adjustment in signal conditioning chains

Procurement Notes

Verify the specific resistance value suffix (e.g., 10 for 10 kΩ) against design requirements. Confirm that the SOT-23-8 package dimensions fit the PCB footprint. Ensure the SPI controller supports the required clock frequency up to 25 MHz. Check RoHS compliance status if required by manufacturing standards.

Selection Notes

Select this component when a solid-state replacement for a mechanical potentiometer is needed in space-constrained applications. The 10 kΩ value is suitable for moderate impedance circuits. Consider the 15% tolerance and 45 ppm/°C tempco for precision requirements. The volatile memory requires reprogramming after power cycles unless the application handles initialization.

Part Context

This part belongs to the AD5160 family of 256-position digital potentiometers. Other variants in the series offer different nominal resistances such as 5 kΩ, 50 kΩ, and 100 kΩ. All variants share the same SOT-23-8 package, SPI interface, and electrical characteristics regarding resolution and power supply range.

Replacement Considerations

Direct parameter-equivalent replacements within the AD5160 family include AD5160BRJZ5-RL7 (5 kΩ), AD5160BRJZ50-RL7 (50 kΩ), and AD5160BRJZ100-RL7 (100 kΩ). These parts maintain identical pinouts and functionality but differ in nominal resistance values.