CAT5241
Digital Potentiometer (POT), 64-Tap, Quad, with I2C Interface
制造商:ON
产品信息
The CAT5241 is four digital POTs integrated with control logic and 16 bytes of EEPROM memory. Each digital POT consists of a series of 63 resistive elements connected between two externally accessible end points. The tap points between each resistive element are connected to the wiper outputs with CMOS switches. A separate 6-bit control register (WCR) independently controls the wiper tap switches for each digital POT. Associated with each wiper control register are four 6-bit non-volatile memory data registers (DR) used for storing up to four wiper settings. Writing to the wiper control register or any of the non-volatile data registers is via a 2-wire serial bus (I²C-like). On power-up, the contents of the first data register (DR0) for each of the four potentiometers is automatically loaded into its respective wiper control register (WCR).
The CAT5241 can be used as a potentiometer or as a two terminal, variable resistor. It is intended for circuit level or system level adjustments in a wide variety of applications.
The CAT5241 can be used as a potentiometer or as a two terminal, variable resistor. It is intended for circuit level or system level adjustments in a wide variety of applications.
- Four linear-taper digital potentiometers
- 64 resistor taps per potentiometer
- End to end resistance 2.5 kΩ, 10 kΩ, 50 kΩ or 100 kΩ
- Potentiometer control and memory access via 2-wire interface (I²C like)
- Low wiper resistance, typically 80 Ω
- Nonvolatile memory storage for up to four wiper settings for each potentiometer
- Automatic recall of saved wiper settings at power up
- 2.5 to 6.0 volt operation
- Standby current less than 1 µA
- 1,000,000 nonvolatile WRITE cycles
- 100 year nonvolatile memory data retention
- Industrial temperature range
在线购买
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