GENERAL DESCRIPTION
The AD5171 is a 64-position, one-time programmable (OTP) digital potentiometer 2 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.

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 BW 1