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參數(shù)資料
| 型號： | S9318S |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Nonvolatile DACPOT⑩ Electronic Potentiometer With Up/Down Counter Interface |
| 中文描述： | 非易失DACPOT⑩電子電位隨著加/減計數(shù)器接口 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 34K |
| 代理商： | S9318S |
SUMMIT MICROELECTRONICS, Inc. 300 Orchard City Drive, Suite 131 Campbell, CA 95008 Telephone 408-378-6461 Fax 408-378-6586 www.summitmicro.com
1
SUMMIT MICROELECTRONICS, Inc. 1999
2016-04 4/24/99
Characteristics subject to change without notice
S UMMIT
MICROELECTRONICS, Inc.
Nonvolatile DACPOT Electronic Potentiometer
With Up/Down Counter 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 E
2
PROM for Power-On Recall
– Equivalent to 256-Step Potentiometer
Unity Gain Op Amp Drives up to 1mA
Simple Trimming Adjustment
– Up/Down Counter Style Operation
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
S9318
OVERVIEW
The S9318 DACPOT trimmer is an 8-bit nonvolatile
DAC designed to replace mechanical potentiometers.
The S9318 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 S9318’s simple up/down counter input provides an
ideal interface for automatic test equipment to dither and
monitor the V
OUT
voltage. This interface allows for quick
and consistent calibration of even the most sophisticated
systems.
The S9318 is a pin-compatible performance upgrade for
other industry nonvolatile potentiometers. The S9318
offers double the resolution of these devices and provides
‘clickless’ transitions of V
OUT
.
FUNCTIONAL BLOCK DIAGRAM
-
+
Counter
&
Write
Control
INC
CS
UP/DN
GND
VH
VOUT
VDD
8-bit E2 PROM
VL
8-bit
Data
Register
8-bit DAC
2016 ILL2.1
AMP
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