AD5170BRM10-RL7

Overview

The AD5170BRM10-RL7 is a single-channel, 256-position digital potentiometer with a nominal end-to-end resistance of 10 kΩ. It features an I²C-compatible serial interface and operates on a single supply voltage ranging from 2.7 V to 5.5 V. The device incorporates two-time programmable (TTP) fuse link technology, allowing for permanent resistance setting retention. Key electrical parameters include a maximum supply current of 6 µA, a temperature coefficient of 35 ppm/°C, and a typical power-up settling time of 2 µs. It is housed in a compact 10-lead MSOP package.

Feature Summary

• Two-Time Programmable (TTP) memory using fuse link technology for permanent resistance settings
• I²C-compatible 2-wire serial interface supporting up to 400 kHz clock frequency
• Single supply operation range of 2.7 V to 5.5 V with low power consumption (max 6 µA)
• Compact 10-lead MSOP package (3 mm × 4.9 mm) with extra address decode pins (AD0, AD1)

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact resistance value and package type. Confirm that the required OTP programming voltage (5.6 V to 5.8 V) is available if permanent programming is intended. Ensure ESD precautions are observed during handling due to the sensitivity of the internal fuse structures.

Selection Notes

Select this component when a non-volatile digital potentiometer with high reliability and low temperature drift is required. The 10 kΩ resistance value suits applications requiring moderate impedance levels. Consider the TTP feature for cost-effective alternatives to EEPROM-based solutions where only one or two programming cycles are needed. Verify that the system can provide the necessary OTP supply voltage if permanent storage is utilized.

Part Context

This part belongs to the AD5170 family of 256-position digital potentiometers. The 'BRM' designation indicates the industrial temperature range (-40°C to +125°C) and the MSOP-10 package. The '10' specifies the 10 kΩ nominal resistance. The '-RL7' suffix denotes the reel packaging format used for surface-mount assembly.

Replacement Considerations

Direct replacements within the same family include the AD5170BRM2.5 (2.5 kΩ) and AD5170BRM50 (50 kΩ), which share identical pinouts and functionality but differ in resistance values. Other ADI digital potentiometers may require interface or pinout verification.