ISL90843UIU1027Z 查看數據表（PDF） - Intersil

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ISL90843UIU1027Z

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

Intersil 

ISL90843

®

Quad Digital Controlled Potentiometers (XDCP™)

Data Sheet

March 29, 2006

FN8095.2

Low Noise, Low Power, I2C® Bus,

256 Taps

The ISL90843 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

I2C 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 a voltage divider in a wide variety

of applications including control, AC measurement, and

signal processing.

Features

• Four potentiometers in one package

• 256 resistor taps–0.4% resolution

• I2C serial interface

- Two address pins allow up to four devices/bus

• Wiper resistance: 70Ω typical @ 3.3V

• Standby current <5µA max

• Power supply: 2.7V to 5.5V

• 10kΩ or 50kΩ total resistance

• 10 Ld MSOP package

• Pb-free plus anneal product (RoHS compliant)

Pinout

ISL90843

(10 LD MSOP)

TOP VIEW

RW3 1

SCL 2

SDA 3

GND 4

RW2 5

10

RW0

9

VCC

8

A1

7

A0

6

RW1

Ordering Information

PART NUMBER

(Note)

PART MARKING

RESISTANCE OPTION

(kΩ)

TEMP RANGE

(°C)

PACKAGE

(Pb-Free)

ISL90843WIU1027Z*

DET

10

-40 to +85

10 Ld MSOP

ISL90843UIU1027Z*

DES

50

-40 to +85

10 Ld MSOP

*Add "-TK" suffix for tape and reel.

NOTE: 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.

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, 2006. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.

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