CAT5132: Digital Potentiometer (POT), 128-Tap, with I2C Interface
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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.
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.
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Technical Documentation & Design Resources
| Tutorials (1) | Data Sheets (1) |
| Application Notes (1) | Package Drawings (1) |
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Specifications
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| CAT5132ZI-00-GT3 | Active |
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CAT5132, 100 kΩ | MSOP-10 | 846AE | 1 | 260 | Tape and Reel | 3000 | $1.5498
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| CAT5132ZI-10-GT3 | Active |
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CAT5132, 10 kΩ | MSOP-10 | 846AE | 1 | 260 | Tape and Reel | 3000 | $1.5498
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| CAT5132ZI-50-GT3 | Active |
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CAT5132, 50 kΩ | MSOP-10 | 846AE | 1 | 260 | Tape and Reel | 3000 | $1.5498
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| Market Leadtime (weeks) | : | 2 to 4 |
| ON Semiconductor (2020-09-02 00:00) | : | 3,000 |
| Market Leadtime (weeks) | : | 17 to 20 |
| Market Leadtime (weeks) | : | 8 to 12 |
Product
Description
Pricing ($/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
A
H
P
Active
1
128
Potentiometer
I2C
100
16
Yes
5.5
MSOP-10
CAT5132ZI-10-GT3
$1.5498
Pb
A
H
P
Active
1
128
Potentiometer
I2C
10
16
Yes
5.5
MSOP-10
CAT5132ZI-50-GT3
$1.5498
Pb
A
H
P
Active
1
128
Potentiometer
I2C
50
16
Yes
5.5
MSOP-10
Case Outlines
846AE
| Support |