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CAT5140: Digital Potentiometer (POT), 256-Tap, with I2C Interface and Integrated EEPROM

Datasheet: Digital Potentiometer (POT), 256-Tap, with I2C Interface and Integrated EEPROM
Rev. 4 (166.0kB)
Product Overview
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The CAT5140 is a single channel non-volatile 256-tap digital POT. This digital POT is comprised of a series of equal value resistor elements connected between two externally accessible end points. The tap points between each resistive element can be selectively connected to the wiper output via internal CMOS switches forming a linear taper electronic potentiometer.

The CAT5140 contains a volatile wiper register (WR) and an 8-bit non-volatile EEPROM for wiper position and 5 additional non-volatile registers for general purpose data storage. Programming of the registers is controlled via I2C interface. On power up, the wiper position is reset to the most recent value stored in the non-volatile memory register (IVR).

The CAT5140 operates over the industrial temperature range of -40°C to +85°C.
Features
 
  • 400 kHz I2C Compatible Interface
  • 256 Position Linear Taper Potentiometer
  • End-to-End Resistance = 50 kΩ / 100 kΩ
  • TCR = 100 ppm/°C (typical)
  • Standby Current = 2 µA (max)
  • Typical Wiper Resistance = 70 Ω @ 3.3 V
  • Operating Voltage = 2.5 V to 5.5 V
  • 6 Registers 8-bit Non-volatile EEPROM
  • 2,000,000 Data Write Stores
  • 100 Year Data Retention
  • 8-Lead MSOP Package
  • Pb-free RoHS Compliant: NiPdAu Plating
Applications   End Products
  • Gain Adjustment and Line Impedance Matching
  • Automated Calibration
  • Contrast, Brightness and Volume Control
  • LCD Screen Adjustment
 
  • Instrumentation for Handheld, Portable Devices
  • Industrial Automation for Handheld, Portable Devices
  • Portable Games
Availability & Samples
Specifications
Case Outlines
Application Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
CAT5140ZI-00-GT3 Active
Pb-free
Halide free
CAT5140 MSOP-8 846AD 1 260 Tape and Reel 3000 $1.08
CAT5140ZI-50-GT3 Active
Pb-free
Halide free
CAT5140 MSOP-8 846AD 1 260 Tape and Reel 3000 $0.3672
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02) : 15,000
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14) : >1K

Product
Description
Pricing ($/Unit)
Compliance
Status
# of Pots
# of Taps
Type
Control Interface
Resistance Typ (kΩ)
VH Max (V)
Wiper Position Memory
VDD Max (V)
Package Type
CAT5140ZI-00-GT3  
 $1.08 
Pb
H
 Active   
1
256
Potentiometer
I2C
100
VCC
Yes
5.5
MSOP-8
CAT5140ZI-50-GT3  
 $0.3672 
Pb
H
 Active   
1
256
Potentiometer
I2C
50
VCC
Yes
5.5
MSOP-8
Case Outlines
846AD   
Packages
CAT5140: Digital Potentiometer (POT), 256-Tap, with I2C  Interface and Integrated EEPROM
CAT5140: Digital Potentiometer (POT), 256-Tap, with I2C  Interface and Integrated EEPROM
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