SMP9317S SUMMIT [Summit Microelectronics, Inc.], SMP9317S Datasheet

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SMP9317S

Manufacturer Part Number
SMP9317S
Description
Manufacturer
SUMMIT [Summit Microelectronics, Inc.]
Datasheet
1.SMP9317S.pdf (6 pages)
Nonvolatile DACPOT™ Electronic Potentiometer
With Up/Down Counter Interface
FEATURES
• Digitally Controlled Electronic Potentiometer
• 7-Bit Digital-to-Analog Converter (DAC)
• V
• Unity Gain Op Amp Drives 100 A
• Simple Trimming Adjustment
• Low Noise Operation
• “Clickless” Transitions between DAC Steps
• No Mechanical Wearout Problem
• Operation from +2.7V to +5.5V Supply
• Ultra-Low Power, 0.5mW max at +5V
© SUMMIT MICROELECTRONICS, Inc. 1998
2031-04 12/4/98
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
– Integral Non-Linearity - +1LSB
– Equivalent to 128-Step Potentiometer
– Up/Down Counter Style Operation
– 1,000,000 Stores (typical)
– 100 Year Data Retention
UP/DN
OUT
INC
CS
SUMMIT
MICROELECTRONICS, Inc.
Value in EEPROM for Power-On Recall
Counter
Control
Write
&
7-bit E 2 PROM
Register
Data
7-bit
V DD
GND
7-bit DAC
1
OVERVIEW
The SMP9317 DACPOT™ trimmer is a 7-bit nonvolatile
DAC designed to replace mechanical potentiometers.
The SMP9317 includes a unity-gain amplifier to buffer the
DAC output and enables V
The DACPOT trimmer operates over a supply voltage
range of 2.7V to 5.5V.
The SMP9317’s simple up/down counter input provides
an ideal interface for automatic test equipment to dither
and monitor the V
quick and consistent calibration of even the most sophis-
ticated systems.
The SMP9317 is a pin-compatible performance upgrade
for other industry nonvolatile potentiometers. The
SMP9317 offers higher resolution than these devices and
provides ‘clickless’ transitions of V
OUT
+
-
AMP
voltage. This interface allows for
Characteristics subject to change without notice
OUT
to swing from rail to rail.
OUT
SMP9317
.
2031 ILL2.0
V OUT
V L
V H

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SMP9317S Summary of contents

Page 1

SUMMIT MICROELECTRONICS, Inc. Nonvolatile DACPOT™ Electronic Potentiometer With Up/Down Counter Interface FEATURES • Digitally Controlled Electronic Potentiometer • 7-Bit Digital-to-Analog Converter (DAC) – Independent Reference Inputs – Differential Non-Linearity - +0.5LSB – Integral Non-Linearity - +1LSB • V Value in ...

Page 2

PIN NAMES Symbol Description INC Increment Input, High to Low Edge Trigger UP/DN Up/Down Input controlling relative V movement OUT V V+ reference input H GND Analog and Digital Ground V Trimmed Voltage Output OUT V V- reference input L ...

Page 3

ABSOLUTE MAXIMUM RATINGS* Temperature Under Bias Storage Temperature Voltage on pins with reference to GND: Analog Inputs Digital Inputs Analog Outputs Digital Outputs Lead Solder Temperature (10 secs) RECOMMENDED OPERATING CONDITIONS Condition Temperature V DD DAC DC ELECTRICAL CHARACTERISTICS V ...

Page 4

RELIABILITY CHARACTERISTICS (over recommended operating conditions unless otherwise specified) Symbol Parameter V ZAP ESD Susceptibility I LTH Latch- Data Retention N END Endurance DC ELECTRICAL CHARACTERISTICS V = +2.7V to +5.5V ...

Page 5

OPERATIONAL TRUTH TABLE INC INC INC INC INC Notes: 1. The Standby or operating current will be lowest with INC and UP/DN pins at ...

Page 6

Pin SOIC (Type S) Package JEDEC (150 mil body width) 1 .196 (5.00) .189 (4.80) .061 (1.75) .053 (1.35) .0192 (.49) .0138 (.35) ORDERING INFORMATION Base Part Number SUMMIT Microelectronics, Inc. reserves the right to make changes to the ...

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