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參數(shù)資料
| 型號： | S9518 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | Nonvolatile DACPOT Electronic Potentiometer With Debounced Push Button Interface |
| 中文描述： | 非易失DACPOT電子電位隨著去抖按鈕接口 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 43K |
| 代理商： | S9518 |
SUMMIT MICROELECTRONICS, Inc. 300 Orchard City Drive, Suite 131 Campbell, CA 95008 Telephone 408-378-6461 Fax 408-378-6586 www.summitmicro.com
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SUMMIT MICROELECTRONICS, Inc. 1999
2017-04 4/24/99
Characteristics subject to change without notice
S UMMIT
MICROELECTRONICS, Inc.
Nonvolatile DACPOT Electronic Potentiometer
With Debounced Push Button Interface
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
V
OUT
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
S9518
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
OUT
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 V
OUT
.
FUNCTIONAL BLOCK DIAGRAM
STR
UP DWN
2017 ILL2.2
VL
VOUT
VH
8-bit DAC
Debounce Circuit
& Write Control
Logic
GND
VDD
8
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