SMP9317 ETC, SMP9317 Datasheet

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SMP9317

Manufacturer Part Number
SMP9317
Description
Nonvolatile DACPOT Electronic Potentiometer With Up/Down Counter Interface
Manufacturer
ETC
Datasheet
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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SMP9317 Summary of contents

Page 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 ...

Page 2

... L UP/DN input. The host may exit an adjustment routine in two ways: deselecting the SMP9317 while INC is low will not per- form a store operation (a subsequent power cycle will recall the original data); deselecting the SMP9317 while INC is high will store the current V volatile memory ...

Page 3

... 100mV rms IN 3 SMP9317 *COMMENT Stresses above those listed under Absolute Maxi- mum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions outside those listed in the opera- tion sections of this specification is not implied ...

Page 4

... W/INC 4.5V DD does not include the current that flows through the Reference DD 4 SMP9317 Unit Test Method V MS-883, TM 3015 mA JEDEC Standard 17 Years MS-883, TM 1008 Stores MS-883, TM 1033 2031 PGM T2.0 Min Typ Max 1.0 100 10 -25 ...

Page 5

... Min 100 100 100 200 200 100 Delay t IH IHDC t DCIL t ILVOUT AC TIMING DIAGRAM 5 SMP9317 Operation V toward V OUT H V toward V OUT L Store Setting Maintain Setting, NO Store Standby, note 1 2031 PGM T5.1 Max Units 2031 PGM T6.0 ...

Page 6

... SUMMIT Microelectronics, Inc. is adequately protected under the circumstances. © Copyright 1998 SUMMIT Microelectronics, Inc. 2031-04 12/4/98 .050 (1.27) TYP. .157 (4.00) .275 (6.99) TYP. .150 (3.80) FOOTPRINT .0098 (.25) .035 (.90) .004 (.127) .016 (.40) .05 (1.27) TYP. SMP9317 S Package Pin SOIC NOTICE 6 SMP9317 .050 (1.270) TYP. 8 Places .030 (.762) TYP. 8 Places .020 (.50) x45 .010 (.25) ...

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