# Dual-supply for MAX4310

I'm reading the datasheet of MAX4310:

https://datasheets.maximintegrated.com/en/ds/MAX4310-MAX4315.pdf

and I'm not sure how to configure the supply rails. The video input signals are AC coupled, hence they span below the GND rail.

I don't want to put a common mode voltage because I have very small free space on the board. At page 11 I read:

Vcc: Positive power supply

Vee: Negative Power Supply. Ground for single-supply operation.

I wonder if I can generate a -3V rail with an LTC1983-3 (http://cds.linear.com/docs/en/datasheet/1983fc.pdf) and then power the MAX4310 using a +5V on Vcc and -3V on Vee.

It hasn't a ground pin, though... how it can sense "where" is the 0V rail?

• Well, using a LTC1983-5 I can supply it with a ±5V: in this way the output should be centered around 0V as the input is. About control signals: I think you're talking about A0 that should switch between Vcc and Vee. – Mark May 17 '17 at 19:42