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ISL90840UIV2027Z Datasheet

  • ISL90840UIV2027Z

  • Low Noise, Low Power I2C Bus, 256 Taps

  • 12頁(yè)

  • INTERSIL   INTERSIL

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廬
ISL90840
Quad Digitally Controlled Potentiometers (XDCP鈩?
Data Sheet
July 27, 2005
FN8086.0
Low Noise, Low Power I
2
C
廬
Bus, 256 Taps
The ISL90840 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 - 0.4% resolution
鈥?I
2
C serial interface
- Three address pins, up to eight devices/bus
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?20 Lead TSSOP
鈥?Pb-free plus anneal available (RoHS compliant)
Pinout
ISL90840
(20 LEAD TSSOP)
TOP VIEW
RH3
RL3
RW3
A2
SCL
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
RW0
RL0
RH0
D.N.C.
VCC
A1
A0
RH1
RL1
RW1
Ordering Information
PART NUMBER
ISL90840UIV2027
ISL90840UIV2027Z
(Notes 1 & 2)
ISL90840WIV2027
ISL90840WIV2027Z
(Notes 1 & 2)
NOTES:
1. Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and
100% matte tin plate termination finish, which are RoHS
compliant and compatible with both SnPb and Pb-free soldering
operations. Intersil Pb-free products are MSL classified at Pb-
free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J STD-020.
2. Contact factory for availability.
PACKAGE
20 Ld TSSOP
20 Ld TSSOP
(Pb-Free)
20 Ld TSSOP
20 Ld TSSOP
(Pb-Free)
TEMP
RANGE
(擄C)
-40 to +85
-40 to +85
-40 to +85
-40 to +85
RESISTANCE
OPTION
(鈩?
50K
50K
10K
10K
SDA
GND
RW2
RL2
RH2
Functional Diagram
V
CC
R
H0
R
H1
R
H2
R
H3
SCL
SDA
A0
A1
A2
I
2
C
INTERFACE
GND
R
L0
R
W0
R
L1
R
W1
R
L2
R
W2
R
L3
R
W3
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) and XDCP are registered trademarks of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

ISL90840UIV2027Z 產(chǎn)品屬性

  • Digitally Controlled Potentiometers

  • 75

  • 集成電路 (IC)

  • 數(shù)據(jù)采集 - 數(shù)字電位器

  • XDCP™

  • 256

  • 50k

  • 4

  • 標(biāo)準(zhǔn)值 ±45 ppm/°C

  • 易失

  • I²C（設(shè)備位址）

  • 2.7 V ~ 5.5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 20-TSSOP（0.173"，4.40mm 寬）

  • 20-TSSOP

  • 管件

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