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ALLDAQ I2C multiplexer, buffer, isolator, level shifter
With the I2C multiplexer boxes from ALLDAQ you have numerous possibilities to expand your I2C structures and make them more run-sensitive.
I2C Multiplexer: An I2C master channel is generated via USB, which is directly available and additionally addresses an integrated multiplexer module. This I2C bus is then extended to up to 3 additional channels. The multiplexer has 8 switchable I2C addresses, so that other boxes can be used simultaneously and several slaves with identical I2C addresses can be used.
I2C Verlängerung: In addition to the conventional I2C bus, the ADQ-I2C modules also offer specially buffered interfaces. Thus, 2 boxes can be used as an extension to cover distances of several 100 meters over a 2-wire twisted pair cable.
I2C Isolator: The buffered SCL/SDA lines are capacitively isolated to provide protection against ground loops, for example, if the GND reference of the terminals differs such as when using long cables.
I2C Level-Shifter: The internal pull-ups at 5V can be switched off by software. Thus, external pull-ups can also be used to work with other voltage levels
The ALLDAQ ADQ-151 is a converter and isolator from USB to standard I²C, buffered I²C, UART, and 4x TTL I/Os. It was designed for use in industrial automation and control technology. The galvanic isolation of 500 VACeff. between the field wiring and the PC effectively suppresses power flow and protects both the host and the device. The ADQ-151 has a standard I2C and a buffered I2C. The buffered I2C can be used to operate other ALLDAQ products such as the ADQ-61 or the programmable current sink over distances of more than 10 meters. The ADQ-151 also offers a UART interface. This is registered as standard on a PC as a COM interface. In addition, the ADQ-151 has four digital inputs and outputs (TTL). All signal levels are 5V.Translated with www.DeepL.com/Translator