Digital Potentiometers (POTs) | CAT5121

Digital Potentiometer (POT), 16-Tap, with 2-Wire Interface

Obsolete

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Overview

CAT5121 linear-taper digital POT performs the same function as a mechanical potentiometer or a variable resistor. This device consists of a fixed resistor and a wiper contact with 32-tap points that are digitally controlled through a 2-wire up/down serial interface.
The CAT5121 is configured as a variable resistor. See Pin Configurations for part functionality.

Three resistance values are available: 10 kΩ , 50 kΩ and 100 kΩ.

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

  • Industrial Equipment

  • 0.3 µA Ultra-low supply current
  • Single-supply operation: 2.7 V to 5.5 V
  • Glitchless switching between resistor taps
  • Power-on reset to midscale
  • 2-Wire up/down serial interface
  • Resistance values: 10 kΩ, 50 kΩ and 100 kΩ

Tools and Resources

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# of Pots

# of Taps

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Control Interface

Resistance Typ (kΩ)

VH Max (V)

Wiper Position Memory

VDD Max (V)

Reference Price

CAT5121SDI-10GT3

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Obsolete

CAD Model

Pb

A

H

P

SC-88-6 / SC-70-6 / SOT-363-6

419AD

1

260

REEL

3000

N

1

16

Rheostat

Up/Down

10

VCC

No

5.5

Price N/A

More Details

CAT5121SDI-50GT3

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Find Replacements

Obsolete

CAD Model

Pb

A

H

P

SC-88-6 / SC-70-6 / SOT-363-6

419AD

1

260

REEL

3000

N

1

16

Rheostat

Up/Down

50

VCC

No

5.5

Price N/A

More Details

CAT5121TBI-10GT3

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Find Replacements

Obsolete

CAD Model

Pb

A

H

P

SOT-23-6

527AJ

1

260

REEL

3000

N

1

16

Rheostat

Up/Down

10

VCC

No

5.5

Price N/A

More Details

CAT5121TBI-50GT3

Loading...
Find Replacements

Obsolete

CAD Model

Pb

A

H

P

SOT-23-6

527AJ

1

260

REEL

3000

N

1

16

Rheostat

Up/Down

50

VCC

No

5.5

Price N/A

More Details

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Reliability Data

Die Related Summary Data

Device: CAT5121SDI-10GT3

Equivalent to wafer fab process: CMOS SUB

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

CMOS SUB

2

920154574

More Details

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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