SUMMIT
MICROELECTRONICS, Inc.
S9318
Nonvolatile DACPOT鈩?Electronic Potentiometer
With Up/Down Counter Interface
FEATURES
鈥?Digitally Controlled Electronic Potentiometer
鈥?8-Bit Digital-to-Analog Converter (DAC)
鈥?Independent Reference Inputs
鈥?Differential Non-Linearity -
鹵
0.5LSB max
鈥?Integral Non-Linearity -
鹵
1LSB max
鈥?V
OUT
Value in E
2
PROM for Power-On Recall
鈥?Equivalent to 256-Step Potentiometer
鈥?Unity Gain Op Amp Drives up to 1mA
鈥?Simple Trimming Adjustment
鈥?Up/Down Counter Style Operation
鈥?Low Noise Operation
鈥?鈥淐lickless鈥?Transitions between DAC Steps
鈥?No Mechanical Wearout Problem
鈥?1,000,000 Stores (typical)
鈥?100 Year Data Retention
鈥?Operation from +2.7V to +5.5V Supply
鈥?Low Power, 1mW max at +5V
OVERVIEW
The S9318 DACPOT鈩?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鈥檚 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
鈥榗lickless鈥?transitions of V
OUT
.
FUNCTIONAL BLOCK DIAGRAM
VDD
8-bit E2 PROM
VH
-
UP/DN
INC
CS
Counter
&
Write
Control
8-bit
Data
Register
AMP
8-bit DAC
+
VOUT
VL
GND
2016 ILL2.1
SUMMIT MICROELECTRONICS, Inc.
鈥?/div>
300 Orchard City Drive, Suite 131
鈥?/div>
Campbell, CA 95008
鈥?/div>
Telephone 408-378-6461
鈥?/div>
Fax 408-378-6586
鈥?/div>
www.summitmicro.com
漏 SUMMIT MICROELECTRONICS, Inc. 1999
2016-04 4/24/99
1
Characteristics subject to change without notice
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英文版
Nonvolatile DACPOT⑩ Electronic Potentiometer With Up/Down C...
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英文版
Nonvolatile DACPOT⑩ Electronic Potentiometer With Up/Down C...
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英文版
Nonvolatile DACPOT⑩ Electronic Potentiometer With Up/Down C...
ETC
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Nonvolatile DACPOT⑩ Electronic Potentiometer With Up/Down C...
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