AD5248BRMZ10-RL7

Digital Potentiometers Overview

The AD5248BRMZ10-RL7 is a dual-channel, 256-position digital potentiometer from Analog Devices. It features an end-to-end resistance of 10 kΩ with a tolerance of ±20% and a temperature coefficient of 35 ppm/°C. 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 utilizes an I²C-compatible serial interface for full read/write access to the wiper registers. Packaged in a compact 10-lead MSOP (3 mm × 4.9 mm) format, it includes dedicated address decode pins (AD0, AD1) to support multiple devices on a single bus.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 256 tap positions per channel
• I²C-compatible 2-wire serial interface with programmable address decoding via AD0 and AD1 pins
• Low power consumption: 6 µA maximum supply current at 5 V
• Power-on preset to midscale position for fault recovery

Digital Potentiometers Applications

• Systems calibration and permanent factory PCB settings
• Replacement for mechanical trimmers in new designs
• Gain control and offset adjustment circuits
• RF amplifier biasing and transducer adjustment

Digital Potentiometers Procurement Notes

Verify the specific suffix '10' confirms the 10 kΩ nominal resistance value. Confirm the 'MZ' package designation corresponds to the 10-lead MSOP form factor. Check the 'RL7' suffix for reel packaging specifications. Ensure compatibility with the required I²C clock frequency limits of 400 kHz.

Digital Potentiometers Selection Notes

Select this component when a dual-channel variable resistor is required with I²C control. The 10 kΩ resistance value suits moderate impedance applications. Verify that the volatile memory type meets system requirements, as settings are lost upon power loss unless maintained by constant bias. Ensure the operating temperature range of −40°C to +125°C aligns with environmental conditions.

Digital Potentiometers Part Context

This part belongs to the AD5243/AD5248 family of digital potentiometers. The AD5248 variant is distinguished by the inclusion of AD0 and AD1 address pins, allowing up to four devices to share a single I²C bus. It serves as a solid-state alternative to mechanical potentiometers, offering higher reliability and programmability in compact surface-mount packages.

Digital Potentiometers Replacement Considerations

The AD5243BRMZ10-RL7 is a compatible substitute but lacks the AD0 and AD1 address pins, limiting bus connectivity to one device per bus segment. Other AD5248 variants with different resistance values (e.g., 2.5 kΩ, 50 kΩ, 100 kΩ) share identical pinouts and functionality but differ in electrical characteristics.