OVERVIEW
The SMP9317 DACPOT™ trimmer is a 7-bit nonvolatile DAC designed to replace mechanical potentiometers. The SMP9317 includes a unity-gain amplifier to buffer the DAC output and enables VOUT to swing from rail to rail. The DACPOT trimmer operates over a supply voltage range of 2.7V to 5.5V.

FEATURES
• Digitally Controlled Electronic Potentiometer
• 7-Bit Digital-to-Analog Converter (DAC)
    – Independent Reference Inputs
    – Differential Non-Linearity - +0.5LSB
    – Integral Non-Linearity - +1LSB
• VOUT Value in EEPROM for Power-On Recall
    – Equivalent to 128-Step Potentiometer
• Unity Gain Op Amp Drives ±100µA
• Simple Trimming Adjustment
    – Up/Down Counter Style Operation
• Low Noise Operation
• “Clickless” Transitions between DAC Steps
• No Mechanical Wearout Problem
    – 1,000,000 Stores (typical)
    – 100 Year Data Retention
• Operation from +2.7V to +5.5V Supply
• Ultra-Low Power, 0.5mW max at +5V