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.

FEATUREs
• 0.3 A Ultra−low Standby 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 k, 50 kand 100 k
• Available in SC−70 and SOT−23 Packages
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

APPLICATIONs
• LCD Screen Adjustment
• Volume Control
• Mechanical Potentiometer Replacement
• Gain Adjustment
• Line Impedance Matching