Digital Potentiometers (POTs) | CAT5132

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

Obsolete

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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.

  • LCD screen adjustment
  • Volume control
  • Mechanical potentiometer replacement
  • Gain adjustment
  • Line impedance matching
  • VCOM setting adjustments

  • Industrial Equipment

  • 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

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Product services, tools and other useful resources related to CAT5132

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Case Outline

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MSL Temp (°C)

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# of Pots

# of Taps

Type

Control Interface

Resistance Typ (kΩ)

VH Max (V)

Wiper Position Memory

VDD Max (V)

Reference Price

CAT5132ZI-00-GT3

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

Micro10 / MSOP10 (150 mil)

846AG

1

260

REEL

3000

N

1

128

Potentiometer

I2C

100

16

Yes

5.5

Price N/A

More Details

CAT5132ZI-10-GT3

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

Micro10 / MSOP10 (150 mil)

846AG

1

260

REEL

3000

N

1

128

Potentiometer

I2C

10

16

Yes

5.5

Price N/A

More Details

CAT5132ZI-50-GT3

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

Micro10 / MSOP10 (150 mil)

846AG

1

260

REEL

3000

N

1

128

Potentiometer

I2C

50

16

Yes

5.5

Price N/A

More Details

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可靠性数据

Die Related Summary Data

Device: CAT5132ZI-00-GT3

Equivalent to wafer fab process: CMOS SUB

产品技术

产品技术

等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

CMOS SUB

2

920154574

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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