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ISL90842WIV1427 Datasheet

  • ISL90842WIV1427

  • Low Noise, Low Power, I2C Bus, 256 Taps

  • 12頁

  • INTERSIL   INTERSIL

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廬
ISL90842
Quad Digital Controlled Potentiometers (XDCP鈩?
Data Sheet
June 14, 2005
FN8096.0
PRELIMINARY
Low Noise, Low Power, I
2
C
廬
Bus,
256 Taps
The ISL90842 integrates four digitally controlled
potentiometers (XDCP) on a monolithic CMOS integrated
circuit.
The digitally controlled potentiometers are implemented with
a combination of resistor elements and CMOS switches. The
position of the wipers are controlled by the user through the
I
2
C bus interface. Each potentiometer has an associated
Wiper Register (WR) that can be directly written to and read
by the user. The contents of the WR controls the position of
the wiper.
The DCPs can be used as three-terminal potentiometers or
as two-terminal variable resistors in a wide variety of
applications including control, parameter adjustments, and
signal processing.
Features
鈥?Four potentiometers in one package
鈥?256 resistor taps鈥?.4% resolution
鈥?I
2
C serial interface
鈥?Wiper resistance: 70鈩?typical @ 3.3V
鈥?Standby current <5碌A(chǔ) max
鈥?Power supply: 2.7V to 5.5V
鈥?50k鈩? 10k鈩?total resistance
鈥?14 Lead TSSOP
Pinout
ISL90842
(14 LEAD TSSOP)
TOP VIEW
RH3
RW3
1
2
3
4
5
6
7
14
13
12
11
10
9
8
RW0
RH0
V
CC
A1
A0
RH1
RW1
Ordering Information
PART NUMBER
ISL90842UIV1427
ISL90842WIV1427
PACKAGE
14 Ld TSSOP
14 Ld TSSOP
RESISTANCE
OPTION
50k鈩?/div>
10k鈩?/div>
SCL
SDA
GND
RW2
RH2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

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