S9518S Summit Microelectronics, Inc., S9518S Datasheet
S9518S
Manufacturer Part Number
S9518S
Description
SOP-8
Manufacturer
Summit Microelectronics, Inc.
Datasheet
1.S9518S.pdf
(8 pages)
Nonvolatile DACPOT™ Electronic Potentiometer
With Debounced Push Button Interface
FEATURES
Digitally Controlled Electronic Potentiometer
• 8-Bit Digital-to-Analog Converter (DAC)
• V
• Unity Gain Op Amp Drives up to 1mA
• Simple Trimming Adjustment
• Low Noise Operation
• “Clickless” Transitions between DAC Steps
• No Mechanical Wearout Problem
• Operation from +2.7V to +5.5V Supply
• Low Power, 1mW max at +5V
© SUMMIT MICROELECTRONICS, Inc. 1999
2017-04 4/24/99
FUNCTIONAL BLOCK DIAGRAM
SUMMIT MICROELECTRONICS, Inc. • 300 Orchard City Drive, Suite 131 • Campbell, CA 95008 • Telephone 408-378-6461 • Fax 408-378-6586 • www.summitmicro.com
– Independent Reference Inputs
– Differential Non-Linearity - 0.5LSB max
– Integral Non-Linearity - 1LSB max
– Equivalent to 256-Step Potentiometer
– Debounced Push Button Interface
– 1,000,000 Stores (typical)
– 100 Year Data Retention
OUT
SUMMIT
MICROELECTRONICS, Inc.
Value in EEPROM for Power-On Recall
Debounce Circuit
UP DWN
& Write Control
Logic
STR
V DD
GND
1
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 V
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 V
8-bit DAC
OUT
OUT
to swing from rail to rail. The
Characteristics subject to change without notice
.
2017 ILL2.2
V H
V L
V OUT
S9518
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