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CAT5132: Digital Potentiometer (POT), 128-Tap, with I2C Interface

Datasheet: Digital Potentiometer (POT), 128-Tap, with I2C Interface
Rev. 7 (183.0kB)
Product Overview
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The CAT5132 is a high voltage digital POT with non-volatile wiper setting memory, operating like a mechanical potentiometer. The tap points between the 127 equal resistive elements are connected to the wiper output via CMOS switches. The switches are controlled by a 7-bit Wiper Control Register (WCR). The wiper setting can be stored in a 7-bit non-volatile Data Register (DR). The WCR is accessed via the I²C serial bus.

Upon power-up, the WCR is set to mid-scale (1000000). After the power supply is stable, the contents of the DR are transferred to the WCR and the wiper is returned to the memorized setting.

The CAT5132 has two voltage supplies: VCC, the digital supply and V+, the analog supply. V+ can be much higher than VCC, allowing for 16V analog operations.

The CAT5132 can be used as a potentiometer or as a two-terminal variable resistor.
Features
 
  • Single linear digital POT with 128 taps
  • End-to-end resistance of 10 kΩ, 50 kΩ & 100 kΩ
  • I²C interface
  • Fast Up/Down wiper control mode
  • Automatic wiper setting recall at power up
  • Non-volatile wiper setting storage
  • Digital Supply range (VCC): 2.7 V to 5.5 V
  • Analog Supply range (V+): +8.0 V to +16 V
  • Low Standby Current: 15 µA
  • 100 Year wiper setting memory
  • Industrial Temperature range: -40°C to +85°C
Applications   End Products
  • LCD screen adjustment
  • Volume control
  • Mechanical potentiometer replacement
  • Gain adjustment
  • Line impedance matching
  • VCOM setting adjustments
 
  • Industrial Equipment
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
CAT5132ZI-00-GT3 Active
Pb-free
Halide free
CAT5132, 100 kΩ MSOP-10 846AE 1 260 Tape and Reel 3000 $1.5498
CAT5132ZI-10-GT3 Active
Pb-free
Halide free
CAT5132, 10 kΩ MSOP-10 846AE 1 260 Tape and Reel 3000 $1.5498
CAT5132ZI-50-GT3 Active
Pb-free
Halide free
CAT5132, 50 kΩ MSOP-10 846AE 1 260 Tape and Reel 3000 $1.5498
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 15,000
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 8 to 12
ON Semiconductor   (2020-09-02 00:00) : 3,000

Product
Description
Pricing ($/Unit)
Compliance
Status
# of Pots
# of Taps
Type
Control Interface
Resistance Typ (kΩ)
VH Max (V)
Wiper Position Memory
VDD Max (V)
Package Type
CAT5132ZI-00-GT3  
 $1.5498 
Pb
H
 Active   
1
128
Potentiometer
I2C
100
16
Yes
5.5
MSOP-10
CAT5132ZI-10-GT3  
 $1.5498 
Pb
H
 Active   
1
128
Potentiometer
I2C
10
16
Yes
5.5
MSOP-10
CAT5132ZI-50-GT3  
 $1.5498 
Pb
H
 Active   
1
128
Potentiometer
I2C
50
16
Yes
5.5
MSOP-10
Case Outlines
846AE   
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