AD5162BRMZ100-RL7

Overview

The AD5162BRMZ100-RL7 is a dual-channel, 8-bit digital potentiometer from Analog Devices. It provides two independent variable resistors with an end-to-end resistance of 100 kΩ and 256 tap positions. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, consuming a maximum supply current of 6 µA. It features a standard SPI-compatible serial interface for full read/write access to the wiper registers. The unit is housed in a compact 10-lead MSOP package and supports an operating temperature range from −40°C to +125°C.

Feature Summary

• Dual-channel architecture with 256-position adjustment per channel
• SPI-compatible 3-wire serial interface (SDI, CLK, CS)
• Nominal resistance of 100 kΩ with ±20% tolerance at 25°C
• Low power consumption: 6 µA maximum supply current
• Power-on preset to midscale position

Applications

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

Procurement Notes

Verify the specific suffix RL7 corresponds to the required reel packaging configuration. Confirm that the BRMZ designation matches the required industrial temperature grade and MSOP package variant. Ensure compatibility with the system's SPI clock frequency limits, which are specified up to 25 MHz.

Selection Notes

Select this component when a dual-channel solution is required within a compact footprint. The 100 kΩ resistance value is suitable for applications requiring higher impedance levels compared to the 2.5 kΩ or 10 kΩ variants. Consider the volatile memory nature of the wiper setting; if non-volatility is critical without external EEPROM, maintain constant bias or use a different series.

Part Context

This part belongs to the AD5162 family of dual digital potentiometers. The 'B' indicates the industrial temperature range (-40°C to +125°C), 'R' denotes the RoHS-compliant lead finish, 'M' specifies the MSOP package, 'Z' indicates lead-free status, and '100' defines the 100 kΩ resistance value. The 'RL7' suffix typically designates the tape and reel quantity.

Replacement Considerations

For single-channel requirements, consider the AD5161 series. For I2C interface alternatives, the AD5243 series offers similar electrical characteristics but with a different communication protocol.