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CAT5271 Datasheet

dual 256-position digitally programmable linear taper potentiometer ideally suited

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CAT5271 pdf
CAT5271
Dual 256-Position I2C
Compatible Digital
Potentiometer
The CAT5271 is a dual 256position digitally programmable linear
taper potentiometer ideally suited for replacing mechanical
potentiometers and variable resistors.
The wiper settings are controlled through an I2Ccompatible digital
interface. Upon powerup, 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 batterypowered portable
applications.
The CAT5271, designed as a pin for pin replacement for the
AD5243, is offered in the 10lead MSOP package and operates over
the 40°C to +85°C industrial temperature range.
Features
Dual 256position
EndtoEnd Resistance: 50 kW, 100 kW
I2C Compatible Interface
Poweron 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
RoHScompliant MSOP10 Package (3 mm x 4.9 mm)
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Typical Applications
Potentiometer Replacement
Transducer Adjustment of Pressure, Temperature, Position,
Chemical, and Optical Sensors
RF Amplifier Biasing
Gain Control and Offset Adjustment
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MSOP10
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


  ON Semiconductor Electronic Components Datasheet  

CAT5271 Datasheet

dual 256-position digitally programmable linear taper potentiometer ideally suited

No Preview Available !

CAT5271 pdf
CAT5271
VCC
SCL
SDA
GND
Wiper Control
Register 1
Wiper Control
Register 2
A1
W1
B1
A2
W2
B2
Figure 1. Functional Block Diagram
Table 1. ORDERING INFORMATION
Part Number
Resistance
Temperature Range
Package
Shipping
CAT5271ZI50GT3
CAT5271ZI00GT3
50 kW
100 kW
40°C to 85°C
MSOP10
(PbFree)
3000/Tape & Reel
3000/Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
Table 2. PIN FUNCTION DESCRIPTION
Pin No.
Pin Name
1 B1 B1 Terminal
2 A1 A1 Terminal
3 W2 W2 Terminal
4
GND
Digital Ground
5 VDD Positive Power Supply
6 SCL Serial Clock Input
7
SDA
Serial Data Input / Output
8 A2 A2 Terminal
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B2 B2 Terminal
10 W1 W1 Terminal
Description
Table 3. ABSOLUTE MAXIMUM RATINGS (Note 1)
Rating
Value
Unit
VDD to GND
A1, B1, W1, A2, B2, W2 Voltage to GND
IMAX
Digital Inputs and Output Voltage to GND
0.3 to 6.5
VDD
±20
0 to 6.5
V
mA
V
Operating Temperature Range
40 to +85
°C
Maximum Junction Temperature (TJMAX)
Storage Temperature
150
65 to +150
°C
°C
Lead Temperature (Soldering, 10 sec)
300 °C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Maximum terminal current is bounded by the maximum current handling of the switches, maximum power dissipation of the package, and
maximum applied voltage across any two of the A, B, and W terminals at a given resistance.
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2


Part Number CAT5271
Description dual 256-position digitally programmable linear taper potentiometer ideally suited
Maker ON Semiconductor
Total Page 13 Pages
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