ADuM4121
Production
The ADuM4121/ADuM4121-1 are 2 A isolated, single-channel drivers that employ Analog Devices, Inc.’s iCoupler® technology to provide precision isolation...
Datasheet
ADuM4121 on Analog.com
ADM4168E
Production
The ADM4168E is a dual RS-422 transceiver suitable for high speed communication on point to point and multidrop transmission lines. The ADM4168E is designed...
Datasheet
ADM4168E on Analog.com
I'm using an ADUM4121 as a gate driver for a SiC MOSFET device.
I have seen two examples of how to use the VI+ and VI- pins for the PWM.
1.- Connecting the VI- pin to the ground and applying the logic to the VI+.
2.- Not connecting VI- to the ground and to applying complementary pulses to VI+ and VI-.
I was exploring a third option.
3.- Does the pin VI+ and VI- work as a differential input? I was thinking of using a differential line voltage driver connected to the PWM source in order to use longer twisted pair cables and the other end (twisted pair to VI+ and VI- respectively), and wondering if I could connect this twisted pair directly to VI+ (one cable) and to VI-(the other cable) as if working as a differential input.
This alternative could help me to save a receiver for the line voltage differential driver.
Is it possible to make this type of connection? Do the VI+ and VI- work as differential input?
Thank you!
