GENERAL DESCRIPTION
The AD5227 is Analog Devices’ latest 64-step up/down control digital potentiometer1. This device performs the same electronic adjustment function as a 5 V potentiometer or variable resistor. Its simple 3-wire up/down interface allows manual switching or high speed digital control.

FEATURES
    64-position digital potentiometer
    10 kΩ, 50 kΩ, 100 kΩ end-to-end terminal resistance
    Simple up/down digital or manual configurable control
    Midscale preset
    Low potentiometer mode tempco = 10 ppm/°C
    Low rheostat mode tempco = 35 ppm/°C
    Ultralow power, IDD = 0.4 μA typ and 3 μA max
    Fast adjustment time, ts = 1 μs
    Chip select enable multiple device operation
    Low operating voltage, 2.7 V to 5.5 V
    Automotive temperature range, −40°C to +105°C
    Compact thin SOT-23-8 (2.9 mm × 3 mm) Pb-free package

APPLICATIONS
    Mechanical potentiometer and trimmer replacements
    LCD backlight, contrast, and brightness controls
    Portable electronics level adjustment
    Programmable power supply
    Digital trimmer replacements
    Automatic closed-loop control