What is the minimum data rate for MAX2082 3-wire communication?

As the 3-Wire SPI has timing controlled via an external clock signal (SCLK) there is no lower limitation in place on the MAX2082, it can support all standard data rates of SPI.

How to reduce safely the voltage supplied to INBx of the MAX2082?

The MAX2082 INB has a programmable input impedance. With an 800 ohm series resistor and a 200 ohm input impedance the voltage at INB is reduced to about 20% of the input voltage level.

What should I do with the CI and CQ pins on the MAX2082 if I'm not using CWD mode?

It is best to tie the CI and CQ pins to VCC5 which is +5V if you are not using CWD mode. The compliance range of the output pins is 4.5V to 12V as seen in the datasheet EC table.

Is the MAX2082EVKIT available?

Unfortunately, the MAX2082EVKIT is no longer available.

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MAX2082CXD+: FAQ