CAT5419
Digital Potentiometer (POT), Dual 64-Tap, with 2-wire Interface
制造商:ON
产品信息
The CAT5419 is two digital POTs integrated with control logic and 16 bytes of NVRAM memory.
A separate 6-bit control register (WCR) independently controls the wiper tap position for each digital POT. Associated with each wiper control register are four 6-bit nonvolatile 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 two potentiometers is automatically loaded into its respective wiper control registers (WCR).
The Write Protection (
) pin protects against inadvertent programming of the data register.
The CAT5419 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.
A separate 6-bit control register (WCR) independently controls the wiper tap position for each digital POT. Associated with each wiper control register are four 6-bit nonvolatile 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 two potentiometers is automatically loaded into its respective wiper control registers (WCR).
The Write Protection (
) pin protects against inadvertent programming of the data register.
The CAT5419 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.
- Two 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
- Four non-volatile wiper settings for each potentiometer
- Recall of 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
- Write protection for data register
在线购买
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