AD5243BRM50-RL7

Digital Potentiometers Overview

The AD5243BRM50-RL7 is a dual-channel, 8-bit digital potentiometer from Analog Devices. It provides two independent 256-position variable resistors with an end-to-end resistance of 50 kΩ. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V and consumes a maximum supply current of 6 µA. It features an I²C-compatible serial interface for full read/write access to the wiper registers. Key electrical characteristics include a temperature coefficient of 35 ppm/°C, a typical power-on settling time of 5 µs, and a preset to midscale upon power-up. The component is housed in a compact 10-lead MSOP package.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 256 discrete tap positions per channel
• I²C-compatible 2-wire serial interface for digital control
• Power-on preset function initializes wipers to midscale
• Low power consumption with 6 µA maximum supply current

Digital Potentiometers Applications

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

Digital Potentiometers Procurement Notes

Verify the specific suffix RL7 corresponds to the reel packaging format required for assembly. Confirm that the BRM designation indicates the commercial temperature range and MSOP package type. Ensure compatibility with the target I²C bus voltage levels (2.7 V to 5.5 V) before integration into the system design.

Digital Potentiometers Selection Notes

Select this model when a dual-channel digital potentiometer with 50 kΩ nominal resistance is required. The 8-bit resolution provides 256 steps, suitable for applications needing moderate precision. Verify that the I²C interface aligns with the system controller capabilities. Consider the 35 ppm/°C temperature coefficient if operating across wide thermal ranges.

Digital Potentiometers Part Context

This component belongs to the AD5243 family of dual digital potentiometers. It shares functional similarities with the AD5248, which includes additional address pins for multi-device addressing. The AD5243 series offers various resistance values including 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ options within the same package footprint.

Digital Potentiometers Replacement Considerations

The AD5248BRMZ50-RL7 is a compatible alternative that adds AD0 and AD1 address pins for multiple devices on one bus. Other families like the AD5162 offer SPI interfaces instead of I²C. Verify pinout compatibility and software register mapping when substituting with other digital potentiometer models.