Digital Potentiometers (POTs) | CAT5273

Digital Potentiometer (POT), Dual 256-Tap, I2C Compatible

Obsolete

Datasheet

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Overview

The CAT5273 is a dual 256-position linear taper digital POT 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 CAT5273 operates from 2.7 V to 5.5 V, while consuming less than 2 µA. This low operating current, combined with a small package footprint, makes the CAT5273 ideal for battery-powered portable applications.

The CAT5271, designed as a pin for pin replacement for the AD5248, operates over the -40°C to +85°C industrial temperature range.

  • Potentiometer Replacement
  • Transducer Adjustment of Pressure, Temperature, Position, Chemical, and Optical Sensors
  • RF Amplifier Biasing
  • Gain Control and Offset Adjustment

  • Dual 256-position
  • End-to-End Resistance: 50 kΩ, 100 kΩ
  • 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 A max
  • Wide Operating Temperature -40°C to +85°C

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MSL Temp (°C)

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# of Pots

# of Taps

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VDD Max (V)

Reference Price

CAT5273ZI-50-GT3

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Obsolete

CAD Model

Pb

A

H

P

Micro10 / MSOP10 (150 mil)

846AG

1

260

REEL

3000

N

2

256

Potentiometer

I2C

50

VCC

No

6.5

Price N/A

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Reliability Data

Die Related Summary Data

Device: CAT5273ZI-50-GT3

Equivalent to wafer fab process: CMOS SUB

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

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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