SMP9517 Datasheet | Summit Microelectronics

FEATURES Digitally Controlled Electronic Potentiometer - 7-Bit Digital-to-Analog Converter (DAC) - Independent Reference Inputs - Differential Non-Linearity of ±0.5LSB max - Integral Non-Linearity of ±1LSB max - V OUT Value in EEPROM for Power-On Recall .. - Equivalent to 128-Step Potentiometer - Unity Gain Op Amp Drives up to 1m A - Simple Trimming Adjustment - Debounced Pushbutton Interface - Low Noise Operation - “Clickless” Transitions between DAC Steps - No Mechanical Wear-out Problem - 1,000,000 Stores (typical) - 100 Year Data Retention - Operation from 2.7V to 5.5V Supply - Low Power: 1m W max at 5V OVERVIEW The SMP9517 DACPOT trimmer is an 7-bit nonvolatile DAC designed to replace mechanical potentiometers. The SMP9517 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. The SMP9517’s simple pushbutton input provides an ideal interface for operator adjusted equipment. This interface allows for quick and easy adjustment of even the most sophisticated systems. The SMP9517 is a pin-patible performance upgrade for other industry nonvolatile potentiometers. For higher resolution applications the pin-patible S9518 provides 256 steps with the same pushbutton interface. Both the SMP9517 and the S9518 provide ‘clickless’ transitions of VOUT. FUNCTIONAL BLOCK DIAGRAM VDD 8 VH 7-Bit E2PROM Debounce Circuit & Write Control Logic 7-Bit Data Register 5 7-Bit DAC VOUT 6 1 UP# 2 DWN# 7 STR# 4 GND 2035 T BD 3.0 © SUMMIT MICROELECTRONICS, Inc. 2000 - 300 Orchard City Drive, Suite 131 - Campbell, CA 95008 - Phone 408-378-6461 - Fax 408-378-6586 - .summitmicro. Characteristics subject to change without notice 2035 3.0 5/10/00 PIN NAMES Symbol UP# DWN# VH GND...