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ETC - Nonvolatile DACPOT Electronic Potentiometer With Debounced Push Button Interface

Numéro de référence S9518
Description Nonvolatile DACPOT Electronic Potentiometer With Debounced Push Button Interface
Fabricant ETC 
Logo ETC 





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S9518 fiche technique
SUMMIT
MICROELECTRONICS, Inc.
Nonvolatile DACPOT™ Electronic Potentiometer
With Debounced Push Button Interface
S9518
FEATURES
Digitally Controlled Electronic Potentiometer
• 8-Bit Digital-to-Analog Converter (DAC)
– Independent Reference Inputs
– Differential Non-Linearity - ±0.5LSB max
– Integral Non-Linearity - ±1LSB max
• VOUT Value in EEPROM for Power-On Recall
– Equivalent to 256-Step Potentiometer
• Unity Gain Op Amp Drives up to 1mA
• Simple Trimming Adjustment
– Debounced Push Button Interface
• 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
• Low Power, 1mW max at +5V
OVERVIEW
The S9518 DACPOT trimmer is an 8-bit nonvolatile DAC
designed to replace mechanical potentiometers. The
S9518 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 S9518’s simple push button input provides an ideal
interface for operator adjusted equipment. This interface
allows for quick and easy adjustment of even the most
sophisticated systems.
The S9518 is a pin-compatible performance upgrade for
other industry nonvolatile potentiometers. The S9518
offers double the resolution of these devices and provides
‘clickless’ transitions of VOUT.
FUNCTIONAL BLOCK DIAGRAM
Debounce Circuit
& Write Control
Logic
UP DWN STR
VDD
8-bit DAC
GND
VH
VOUT
VL
2017 ILL2.2
SUMMIT MICROELECTRONICS, Inc. • 300 Orchard City Drive, Suite 131 • Campbell, CA 95008 • Telephone 408-378-6461 • Fax 408-378-6586 • www.summitmicro.com
© SUMMIT MICROELECTRONICS, Inc. 1999
2017-04 4/24/99
Characteristics subject to change without notice
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