CAT5112: Digital Potentiometer (POT), 32-Tap, with Buffered Wiper

The CAT5112 is a single digital POT designed as an electronic replacement for mechanical potentiometers. Ideal for automated adjustments on high volume production lines, they are also well suited for applications where equipment requiring periodic adjustment is either difficult to access or located in a hazardous or remote environment.The CAT5112 contains a 32-tap series resistor array connected between two terminals RH and RL. An up/down counter and decoder that are controlled by three input pins, determines which tap is connected to the wiper, RWB. The CAT5112 wiper is buffered by an op amp that operates rail to rail. The wiper setting, stored in non-volatile memory, is not lost when the device is powered down and is automatically recalled when power is returned. The wiper can be adjusted to test new system values without effecting the stored setting. Wiper-control of the CAT5112 is accomplished with three input control pins, CS, U/D, and INC. The INC input increments the wiper in the direction which is determined by the logic state of the U/D input. The CS input is used to select the device and also store the wiper position prior to power down.The digital POT can be used as a buffered voltage divider. For applications where the potentiometer is used as a 2-terminal variable resistor, please refer to the CAT5114. The buffered wiper of the CAT5112 is not compatible with that application.

Features
  • 32-position Linear Taper Potentiometer
  • Non-volatile EEPROM Wiper Storage; Buffered Wiper
  • Low Power CMOS Technology
  • Single Supply Operation: 2.5 V-6.0 V
  • Increment Up/Down Serial Interface
  • Resistance values: 10 kΩ, 50 kΩ and 100 kΩ
Applications
  • Automated Product Calibration
  • Remote Control Adjustments
  • Offset, Gain and Zero Control
  • Tamper-proof Calibrations
  • Contrast, Brightness and Volume Controls
  • Motor Controls and Feedback Systems
  • Programmable Analog Functions
End Products
  • Industrial Equipment
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Digital Potentiometer (POT), 32-Tap, with Buffered WiperCAT5112/D (177.0kB)16
Package Drawings (4)
Document TitleDocument ID/SizeRevision
MSOP 8, 3x3846AD (56.5kB)revo
PDIP-8, 300 mils646AA (55.8kB)A
SOIC 8, 150 mils751BD (55.6kB)revo
TSSOP8, 4.4x3948AL (55.7kB)revo
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
CAT5112LI-00-GActivePb-free Halide freePDIP-8646AANATube50$33.3325
CAT5112LI-10-GActivePb-free Halide freePDIP-8646AANATube50$33.3325
CAT5112LI-50-GActivePb-free Halide freePDIP-8646AANATube50$33.3325
CAT5112VI-00-GActivePb-free Halide freeSOIC-8751BD1Tube100$33.3325
CAT5112VI-00-GT3ActivePb-free Halide freeSOIC-8751BD1Tape and Reel3000$1.632
CAT5112VI-10-GActivePb-free Halide freeSOIC-8751BD1Tube100$33.3325
CAT5112VI-10-GT3ActivePb-free Halide freeSOIC-8751BD1Tape and Reel3000$1.632
CAT5112VI-50-GActivePb-free Halide freeSOIC-8751BD1Tube100$33.3325
CAT5112VI-50-GT3ActivePb-free Halide freeSOIC-8751BD1Tape and Reel3000$1.632
CAT5112YI-00-GObsoletePb-free Halide freeTSSOP-8948AL1Tube100
CAT5112YI-00-GT3ActivePb-free Halide freeTSSOP-8948AL1Tape and Reel3000$1.632
CAT5112YI-10-GActivePb-free Halide freeTSSOP-8948AL1Tube100$33.3325
CAT5112YI-10-GT3ActivePb-free Halide freeTSSOP-8948AL1Tape and Reel3000$1.632
CAT5112YI-50-GObsoletePb-free Halide freeTSSOP-8948AL1Tube100
CAT5112YI-50-GT3ActivePb-free Halide freeTSSOP-8948AL1Tape and Reel3000$1.632
CAT5112ZI-10-GT3ActivePb-free Halide freeMSOP-8846AD1Tape and Reel3000$1.672
CAT5112ZI-50-GT3ActivePb-free Halide freeMSOP-8846AD1Tape and Reel3000$1.672
Specifications
Product# of Pots# of TapsTypeControl InterfaceResistance Typ (kΩ)VH Max (V)Wiper Position MemoryVDD Max (V)
CAT5112LI-00-G132PotentiometerUp/Down100VCCYes6
CAT5112LI-10-G132PotentiometerUp/Down10VCCYes6
CAT5112LI-50-G132PotentiometerUp/Down50VCCYes6
CAT5112VI-00-G132PotentiometerUp/Down100VCCYes6
CAT5112VI-00-GT3132PotentiometerUp/Down100VCCYes6
CAT5112VI-10-G132PotentiometerUp/Down10VCCYes6
CAT5112VI-10-GT3132PotentiometerUp/Down10VCCYes6
CAT5112VI-50-G132PotentiometerUp/Down50VCCYes6
CAT5112VI-50-GT3132PotentiometerUp/Down50VCCYes6
CAT5112YI-00-GT3132PotentiometerUp/Down100VCCYes6
CAT5112YI-10-G132PotentiometerUp/Down10VCCYes6
CAT5112YI-10-GT3132PotentiometerUp/Down10VCCYes6
CAT5112YI-50-GT3132PotentiometerUp/Down50VCCYes6
CAT5112ZI-10-GT3132PotentiometerUp/Down10VCCYes6
CAT5112ZI-50-GT3132PotentiometerUp/Down50VCCYes6
Digital Potentiometer (POT), 32-Tap, with Buffered Wiper (177.0kB) CAT5112
PDIP-8, 300 mils CAT93C86B
SOIC 8, 150 mils CAV93C86
TSSOP8, 4.4x3 PCA9306
MSOP 8, 3x3 CAT25010