AD5160BRJZ5-R2

Overview

The AD5160BRJZ5-R2 is a single-channel, 8-bit digital potentiometer from Analog Devices. It features a 5 kΩ end-to-end resistance with 256 tap positions and linear taper. 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. It utilizes an SPI-compatible 3-wire serial interface for control. The wiper settings are volatile, requiring reprogramming after power cycles, though the device presets to midscale upon power-up. It is housed in an 8-lead SOT-23 package and supports an operating temperature range from –40°C to +125°C.

Feature Summary

• 256-position adjustment with 8-bit resolution
• SPI-compatible 3-wire serial interface (CS, SDI, CLK)
• Single supply operation: 2.7 V to 5.5 V
• Low power consumption: Typical IDD = 3 µA
• Power-on preset to midscale position

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

Procurement Notes

Verify the specific ordering suffix '-R2' corresponds to the reel packaging format as defined in the manufacturer's ordering guide. Confirm RoHS compliance status via the official datasheet documentation. Ensure the selected variant matches the required 5 kΩ nominal resistance value. Check for availability constraints or limited supply notices associated with this specific part number through authorized distribution channels.

Selection Notes

Select the AD5160BRJZ5-R2 when a compact 8-lead SOT-23 package is required for space-constrained PCB layouts. Choose this model over other AD5160 variants specifically for its 5 kΩ nominal resistance value. Consider the volatile memory characteristic if system design allows for mid-scale initialization at power-up. Verify that the SPI interface timing requirements align with the host microcontroller's capabilities.

Part Context

This component belongs to the AD5160 family of 256-position digital potentiometers. Other members of this series include variants with 10 kΩ, 50 kΩ, and 100 kΩ resistances, such as the AD5160BRJZ10-R2. The family shares identical pinouts, interfaces, and electrical characteristics, differing primarily in the nominal end-to-end resistance value indicated by the model suffix.

Replacement Considerations

Direct functional substitutes within the same package and interface include other AD5160 variants with different resistance values (e.g., AD5160BRJZ10-R2) if the circuit tolerates the resistance change. For non-volatile memory requirements, consider the AD5161 series, which offers I2C/SPI compatibility but differs in package type and interface options.