AD5171

64-Position OTP Digital Potentiometer AD5171 FEATURES 64 position One-time programmable (OTP) set-and-forget resistance setting—low cost alternative over EEMEM Unlimited adjustments prior to OTP activation 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ end-to-end resistance Low temperature coefficient: 5 ppm/°C in potentiometer mode Low temperature coefficient: 35 ppm/°C in rheostat mode Compact standard 8-lead SOT-23 package Low power: IDD = 10 μA maximum Fast settling time: tS = 5 μs typical in power-up I2C-compatible digital interface Computer software replaces microcontroller in factory programming applications Full read/write of wiper register Extra I2C device address pin Low operating voltage: 2.7 V to 5.5 V OTP validation check function Automotive temperature range: −40°C to +125°C APPLICATIONS System calibrations Electronics level settings Mechanical trimmers and potentiometer replacements Automotive electronics adjustments Gain control and offset adjustments Transducer circuit adjustments Programmable filters up to 1.5 MHz BW1 GENERAL DESCRIPTION The AD5171 is a 64-position, one-time programmable (OTP) digital potentiometer2 that uses fuse link technology to achieve the memory retention of the resistance setting function. OTP is a cost-effective alternative over the EEMEM approach for users who do not need to reprogram new memory settings in the digital potentiometer. This device performs the same electronic adjustment function as most mechanical trimmers and variable resistors. The AD...