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S9318 Schematic ( PDF Datasheet ) - ETC

Teilenummer S9318
Beschreibung Nonvolatile DACPOT Electronic Potentiometer With Up/Down Counter Interface
Hersteller ETC
Logo ETC Logo 




Gesamt 6 Seiten
S9318 Datasheet, Funktion
SUMMIT
MICROELECTRONICS, Inc.
Nonvolatile DACPOT™ Electronic Potentiometer
With Up/Down Counter Interface
S9318
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 E2PROM 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
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 VOUT 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 VOUT 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 VOUT.
FUNCTIONAL BLOCK DIAGRAM
8-bit E2 PROM
VDD
UP/DN
INC
CS
Counter
&
Write
Control
8-bit
Data
Register
8-bit DAC
GND
-
AMP
+
VH
VOUT
VL
2016 ILL2.1
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
2016-04 4/24/99
Characteristics subject to change without notice
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S9318 Datasheet, Funktion
S9318
8 Pin SOIC (Type S) Package JEDEC (150 mil body width)
.157 (4.00)
.150 (3.80)
.050 (1.27) TYP.
.275 (6.99) TYP.
.050 (1.270) TYP.
8 Places
1 .196 (5.00)
.189 (4.80)
.061 (1.75)
.053 (1.35)
.0192 (.49)
.0138 (.35)
.0098 (.25)
.004 (.127)
.05 (1.27) TYP.
FOOTPRINT
.030 (.762) TYP.
8 Places
.020 (.50) x45°
.010 (.25)
.035 (.90)
.016 (.40)
.244 (6.20)
.228 (5.80)
8pn JEDEC SOIC ILL.2
ORDERING INFORMATION
S9318 S
Base Part Number
Package
S = 8 Pin SOIC
2016 ILL4.1
NOTICE
SUMMIT Microelectronics, Inc. reserves the right to make changes to the products contained in this publication in order to improve
design, performance or reliability. SUMMIT Microelectronics, Inc. assumes no responsibility for the use of any circuits described
herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent
infringement. Charts and schedules contained herein reflect representative operating parameters, and may vary depending upon
a user’s specific application. While the information in this publication has been carefully checked, SUMMIT Microelectronics, Inc.
shall not be liable for any damages arising as a result of any error or omission.
SUMMIT Microelectronics, Inc. does not recommend the use of any of its products in life support applications where the failure or
malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety
or effectiveness. Products are not authorized for use in such applications unless SUMMIT Microelectronics, Inc. receives written
assurances, to its satisfaction, that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; and
(c) potential liability of SUMMIT Microelectronics, Inc. is adequately protected under the circumstances.
© Copyright 1999 SUMMIT Microelectronics, Inc.
2016-04 4/24/99
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