SUMMIT Microelectronics: Product Summary: SMP9517  

 

SMP9517

Nonvolatile DACPOT™ Electronic Potentiometer With Debounced Push Button Interface

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 VOUT Value in EEPROM for Power-On Recall - Equivalent to 128-Step Potentiometer Unity Gain Op Amp Drives up to 1mA 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: 1mW max at 5Vly

INTRODUCTION 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-compatible performance upgrade for other industry nonvolatile potentiometers. For higher resolution applications the pin-compatible S9518 provides 256 steps with the same pushbutton interface. Both the SMP9517 and the S9518 provide 'clickless' transitions of VOUT. [continued in the PDF]

SUMMIT Microelectronics, Inc. reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. SUMMIT Microelectronics, Inc. assumes no responsibility for the use of any circuits described herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent infringement. Charts and schedules contained herein reflect representative operating parameters, and may vary depending upon a user’s specific application. While the information in this publication has been carefully checked, SUMMIT Microelectronics, Inc. shall not be liable for any damages arising as a result of any error or omission. SUMMIT Microelectronics, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless SUMMIT Microelectronics, Inc. receives written assurances, to its satisfaction, that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; and (c) potential liability of SUMMIT Microelectronics, Inc. is adequately protected under the circumstances. "DACPOT" is a registered trademark of Summit Microelectronics, Inc.