CAT5122: Digital Potentiometer (POT), 16-Tap, with 2-Wire Interface

CAT5122 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 CAT5122 is configured as a variable resistor. See Pin Configurations for part functionality.Three resistance values are available: 10 kΩ , 50 kΩ and 100 kΩ.

Features
  • 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
Applications
  • LCD screen adjustment
  • Volume control
  • Mechanical potentiometer replacement
  • Gain adjustment
  • Line impedance matching
End Products
  • Industrial Equipment
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Digital Potentiometer (POT), 16-Tap, with 2-Wire InterfaceCAT5122/D (197.0kB)8
Package Drawings (2)
Document TitleDocument ID/SizeRevision
SC-88A (SC-70 5 Lead), 1.25x2419AC (59.6kB)A
SOT-23, 5 Lead, 1.6x2.9527AH (56.9kB)revo
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
CAT5122SDI-10GT3ActivePb-free Halide freeSC-88A-5 / SC-70-5419AC1Tape and Reel3000$1.16
CAT5122SDI-50GT3ActivePb-free Halide freeSC-88A-5 / SC-70-5419AC1Tape and Reel3000$1.16
CAT5122TBI-10GT3ActivePb-free Halide freeSOT-23-8527AH1Tape and Reel3000$1.1466
CAT5122TBI-50GT3ActivePb-free Halide freeSOT-23-8527AH1Tape and Reel3000$1.1466
Specifications
Product# of Pots# of TapsTypeControl InterfaceResistance Typ (kΩ)VH Max (V)Wiper Position MemoryVDD Max (V)
CAT5122SDI-10GT3116RheostatUp/Down10VCCNo5.5
CAT5122SDI-50GT3116RheostatUp/Down50VCCNo5.5
CAT5122TBI-10GT3116RheostatUp/Down10VCCNo5.5
CAT5122TBI-50GT3116RheostatUp/Down50VCCNo5.5
Digital Potentiometer (POT), 16-Tap, with 2-Wire Interface (197.0kB) CAT5122
SC-88A (SC-70 5 Lead), 1.25x2 CAT824
SOT-23, 5 Lead, 1.6x2.9 CM1223