AD5162BRMZ2.5

Overview

The AD5162BRMZ2.5 is a dual-channel, 8-bit digital potentiometer featuring 256 tap positions and an end-to-end resistance of 2.5 kΩ. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with a maximum supply current of 6 µA. The device utilizes a 3-wire SPI-compatible interface for full read/write access to the wiper registers. Key electrical characteristics include a nominal resistor tolerance of ±20%, a temperature coefficient of 35 ppm/°C, and a typical power-on preset to midscale. It is housed in a compact 10-lead MSOP package (3 mm × 4.9 mm) and supports an operating temperature range from −40°C to +125°C.

Feature Summary

• Dual-channel architecture with 256 linear tap positions per channel
• SPI-compatible 3-wire serial interface (SDI, CLK, CS)
• Low power consumption: 6 µA maximum at 5 V
• Power-on preset function initializes wipers to midscale
• Compact 10-lead MSOP surface-mount package

Applications

• Systems calibration and permanent factory PCB settings
• Replacement for mechanical trimmers in new designs
• Electronics level settings and gain control
• Transducer adjustment for pressure, temperature, and optical sensors
• RF amplifier biasing and automotive electronics adjustment

Procurement Notes

Verify the specific suffix 'BRMZ' against the manufacturer's ordering guide to confirm the 2.5 kΩ resistance value and MSOP package type. Confirm RoHS compliance status as specifications may vary by manufacturing revision. Check for automotive qualification requirements if the application demands AEC standards. Ensure the volatile memory behavior aligns with system power-loss protocols.

Selection Notes

Select this component when a dual-channel variable resistor is required with low power consumption and high stability. The 2.5 kΩ resistance value suits applications requiring lower impedance compared to the 10 kΩ or 50 kΩ variants. Verify that the SPI interface timing parameters meet the microcontroller's clock speed requirements. Consider the volatile nature of the wiper setting; if non-volatility is critical, evaluate alternatives like the AD5160 series.