CAT5271
Dual 256-Position I2C
Compatible Digital
Potentiometer
The CAT5271 is a dual 256−position digitally programmable linear
taper potentiometer ideally suited for replacing mechanical
potentiometers and variable resistors.
The wiper settings are controlled through an I2C−compatible digital
interface. Upon power−up, the wiper assumes a midscale position and
may be repositioned anytime after the power is stable. The device can
be programmed to go to a shutdown state during operation.
The CAT5271 operates from 2.7 V to 5.5 V, while consuming less
than 2 mA. This low operating current, combined with a small package
footprint, makes the CAT5271 ideal for battery−powered portable
applications.
The CAT5271, designed as a pin for pin replacement for the
AD5243, is offered in the 10−lead MSOP package and operates over
the −40°C to +85°C industrial temperature range.
Features
• Dual 256−position
• End−to−End Resistance: 50 kW, 100 kW
• I2C Compatible Interface
• Power−on Preset to Midscale
• Single Supply 2.7 V to 5.5 V
• Low Temperature Coefficient 100 ppm/°C
• Low Power, IDD 2 mA max
• Wide Operating Temperature −40°C to +85°C
• RoHS−compliant MSOP−10 Package (3 mm x 4.9 mm)
www.DataSheet4U.com
Typical Applications
• Potentiometer Replacement
• Transducer Adjustment of Pressure, Temperature, Position,
Chemical, and Optical Sensors
• RF Amplifier Biasing
• Gain Control and Offset Adjustment
http://onsemi.com
MSOP−10
R, Z SUFFIX
CASE 846AE
MARKING DIAGRAM
ANCC
YMR
ANCE
YMR
11
ANCC = 50 kW
ANCE = 100 kW
Y = Production Year
Y = (Last Digit)
M = Production Month
M = (1 − 9, A, B, C)
R = Revision
B1
A1
W2
GND
VDD
PIN CONNECTIONS
1
(Top View)
W1
B2
A2
SDA
SCL
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
© Semiconductor Components Industries, LLC, 2009
September, 2009 − Rev. 1
1
Publication Order Number:
CAT5271/D
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