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X9315WMI-2.7T5

Description
Digital Potentiometer, 1 Func, 10000ohm, Increment/decrement Control Interface, 32 Positions, CMOS, PDSO8, MSOP-8
CategoryAnalog mixed-signal IC    converter   
File Size369KB,13 Pages
ManufacturerXicor Inc.
Download Datasheet Parametric View All

X9315WMI-2.7T5 Overview

Digital Potentiometer, 1 Func, 10000ohm, Increment/decrement Control Interface, 32 Positions, CMOS, PDSO8, MSOP-8

X9315WMI-2.7T5 Parametric

Parameter NameAttribute value
MakerXicor Inc.
package instructionMSOP-8
Reach Compliance Codeunknown
A
PPLICATION
N
OTE
A V A I L A B L E
AN20 • AN42–53 • AN71 • AN73 • AN88 • AN91–92 • AN99 • AN115 • AN120 • AN124 • AN133 • AN134 • AN135
Low Noise, Low Power, 32 Taps
X9315
Digitally Controlled Potentiometer (XDCP
)
FEATURES
• Solid-state potentiometer
• 3-wire serial interface
• 32 wiper tap points
—Wiper position stored in nonvolatile memory
and recalled on power-up
• 31 resistive elements
—Temperature compensated
—End to end resistance range ± 20%
—Terminal voltage, 0 to V
CC
• Low power CMOS
—V
CC
= 2.7V or 5V
—Active current, 50/400µA max.
—Standby current, 1µA max.
• High reliability
—Endurance, 100,000 data changes per bit
—Register data retention, 100 years
• R
TOTAL
values = 10K
, 50K
, 100K
• Packages
—8-lead SOIC, MSOP and DIP
DESCRIPTION
The Xicor X9315 is a digitally controlled potentiometer
(XDCP). The device consists of a resistor array, wiper
switches, a control section, and nonvolatile memory.
The wiper position is controlled by a 3-wire interface.
The potentiometer is implemented by a resistor array
composed of 31 resistive elements and a wiper
switching network. Between each element and at
either end are tap points accessible to the wiper
terminal. The position of the wiper element is
controlled by the CS, U/D, and INC inputs. The
position of the wiper can be stored in nonvolatile
memory and then be recalled upon a subsequent
power-up operation.
The device can be used as a three-terminal
potentiometer or as a two-terminal variable resistor in
a wide variety of applications including:
– control
– parameter adjustments
– signal processing
BLOCK DIAGRAM
U/D
INC
CS
R
H
/V
H
Control
and
Memory
R
W
/V
W
5-Bit
Nonvolatile
Memory
5-Bit
Up/Down
Counter
R
H
/V
H
V
CC
(Supply Voltage)
31
30
29
28
One
of
Thirty
Two
Decoder
2
Up/Down
(U/D)
Increment
(INC)
Device Select
(CS)
Transfer
Gates
Resistor
Array
R
L
/V
L
Store and
Recall
Control
Circuitry
V
SS
(Ground)
General
V
CC
V
SS
1
0
R
L
/V
L
R
W
/V
W
Detailed
XDCP
is a trademark of Xicor, Inc.
REV 1.3.2 1/14/03
www.xicor.com
Characteristics subject to change without notice.
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