Adafruit LTC4311 I2C Extender / Active Terminator - 3DMakerWorld, Inc.
Adafruit LTC4311 I2C Extender / Active Terminator - 3DMakerWorld, Inc.
Adafruit LTC4311 I2C Extender / Active Terminator - 3DMakerWorld, Inc.
Adafruit LTC4311 I2C Extender / Active Terminator - 3DMakerWorld, Inc.
Adafruit LTC4311 I2C Extender / Active Terminator - 3DMakerWorld, Inc.
Adafruit LTC4311 I2C Extender / Active Terminator - 3DMakerWorld, Inc.

Adafruit LTC4311 I2C Extender / Active Terminator

Regular price $15.77
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Key Features

  • Improves I2C Bus Rise Time Transition
  • Ensures Data Integrity with Multiple Devices on the I2C Bus.
  • Wide Supply Voltage Range: 1.6V to 5.5V
  • Improves Low State Noise Margin
  • Up to 400kHz Operation

Using this board is easy: connect it to your I2C bus at the beginning of the chain (if you don't have a massively long cable, you can also try at the end of the chain). When the chip is powered and enabled, it will watch the SCL and SDA lines. When it sees them being pulled up through the I2C resistors, it will activate and dump in some current to give it a boost thru to the top power rail.

You can now achieve much faster data rates without having to noodle with resistors, and over long cables. We ran a 400 KHz OLED over 3 meters of phone wire with ease. With a 100KHz signal, we even ran a BME680 over 100 feet of Ethernet (about 3000pF round trip!), and had an OLED display the sensor details.

Runs with any bus voltage, from 1.6V to 5.5V and up to 400 KHz SCL speed, with cables up to 4000pF. No special firmware, software, or configuration required. Simply plug the power, ground, SCL and SDA connectors into your bus and watch as your rise times magically turn sawtooths into square waves.

Item Specifics
- Auto Detect Low Power Standby Mode
- Low (<5µA) Supply Current Shutdown
- Does Not Load Bus When Disabled or Powered Down
- Strong Slew Limited Pull-up Current
- ±8kV Human Body Model ESD Ruggedness

Prop. 65 Warning for California Residents
⚠︎ Warning: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. www.p65warnings.ca.gov


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