CAT5126: Digital Potentiometer (POT), One-Time, 32-Tap

The CAT5126 is a digital POT. The wiper position is controlled with a simple 2-wire digital interface. This digital POT is unique in that it has an optional one-time programmable feature that either sets the wiper's position upon power-on to a user-defined value, or the wiper can be set and the interface also disabled to prevent further adjustment.The CAT5126 has an end-to-end resistance of 10 kΩ, 50 kΩ, and 100 kΩ. All CAT5126 devices have 32 wiper positions and operate from a single 2.5 V to 5.5 V supply.Each device is guaranteed over the industrial temperature range of -40°C to +85°C.

Features
  • Wiper position stored after one-time nonvolatile programming
  • User-defined Power-On wiper position
  • 32 tap positions
  • Wiper position programmed through simple 2-wire serial interface
  • Low 0.35 µA (typ) static supply current
  • 2.5 V to 5.5 V single-supply operation
  • 10 kΩ, 50 kΩ, and 100 kΩ end-to-end resistances
  • 50 ppm/°C end-to-end temperature coefficient and 5 ppm/°C ratiometric temperature coefficient
Applications
  • Mechanical potentiometer replacement
  • Products using one-time factory calibration
  • Contrast, brightness, volume controls
  • Programmable analog functions
End Products
  • Industrial Equipment
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Digital Potentiometer (POT), One-Time, 32-TapCAT5126/D (162.0kB)4
Package Drawings (2)
Document TitleDocument ID/SizeRevision
MSOP 8, 3x3846AD (56.5kB)revo
TDFN8, 2x3, 0.5P511AK (34.2kB)B
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
CAT5126VP2I10GT3ActivePb-free Halide freeTDFN-8511AK1Tape and Reel3000$1.1733
CAT5126ZI-00-GT3Consult Sales OfficePb-free Halide freeMSOP-8846AD1Tape and Reel3000
CAT5126ZI-10-GActivePb-free Halide freeMSOP-8846AD1Tube96$33.3325
CAT5126ZI-10-GT3ActivePb-free Halide freeMSOP-8846AD1Tape and Reel3000$1.1733
CAT5126ZI-50-GT3Consult Sales OfficePb-free Halide freeMSOP-8846AD1Tape and Reel3000
Specifications
Product# of Pots# of TapsTypeControl InterfaceResistance Typ (kΩ)VH Max (V)Wiper Position MemoryVDD Max (V)
CAT5126VP2I10GT3132PotentiometerUp/Down10VCCOTP5.5
CAT5126ZI-10-G132PotentiometerUp/Down10VCCOTP5.5
CAT5126ZI-10-GT3132PotentiometerUp/Down10VCCOTP5.5
Digital Potentiometer (POT), One-Time, 32-Tap (162.0kB) CAT5126
TDFN8, 2x3, 0.5P CAV25640
MSOP 8, 3x3 CAT25010