Catalyst Semiconductor CAT5121
The CAT5121 and CAT5122 are configured as variable resistors. These are available in space-saving 5-pin and 6-pin SC70 and SOT-23 packages.| Part No. | CAT5121 |
|---|---|
| Datasheet | CAT5121 Download |
| Manufacturer |  Catalyst Semiconductor |
| Description | 16-Tap MiniPot TM Digitally Programmable Potentiometers |
| Buy | Stock & Price |
FEATURES
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● DEscription CAT5120/5121/5122 linear-taper digitally programmable potentiometers perform the same function as a mechanical potentiometer or a variable resistor. These devices consist of a fixed resistor and a wiper contact with 16-tap points that are digitally controlled through a 2-wire up/down serial interface. The CAT5120 is configured as a potentiometer. See Pin Configurations for part functionality. Three resistance values are available: 10kΩ, 50kΩ and 100kΩ. 0.3µA Ultra-low supply current Single-supply operation: 2.7V to 5.5V Glitchless switching between resistor taps Power-on reset to midscale 2-Wire up/down serial interface Resistance values: 10kΩ, 50kΩ and 100kΩ Available in SC70 and SOT-23 packages
APPLICATIONS
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● LCD screen adjustment Volume control Mechanical potentiometer replacement Gain adjustment Line impedance matching Functional Diagram H VDD GND UP-DOWN COUNTER For Ordering Information details, see page 10. 16-POSITION DECODER CS W U/D Pin Configuration sC70 sOT-23 VDD 6 H VDD sC70 sOT-23 5 H L Pin Descriptions Name
DESCRIPTION
Power Supply Ground Up/Down Control Input.
