UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!
  1. Xilinx - Adaptable. Intelligent.
  2. Support
  3. AR# 52624: 7 series XADC - Can we drive analog input to XADC when Vcco is unpowered?

AR# 52624

7 series XADC - Can we drive analog input to XADC when Vcco is unpowered?

Description

If there are no digital inputs in the XADC I/O bank , but it only uses XADC and some analog inputs, does it still need to connect power to Vcco in the bank?

Solution

It is recommended that you connect all Vccoinputson a device in order to provide ESD protection for the I/Os.Driving the I/Os of the device before the device is powered is not recommended. If the I/Os are driven before the device is powered, it is required that the current is limited to the specificationin the data sheet. This applies to allI/Os, includingthe XADC pins.

AR# 52624
Date 12/10/2012
Status Active
Type General Article
Devices
  • Kintex-7
  • Artix-7
  • Virtex-7
Page Bookmarked