array of bat54s schottly diodes to protect input pins?

[danjel]

Usually when I have external voltages feeding the inputs of my atmega uC and I want to protect against overvoltage and negative voltages I use a dual schottky (BAT54S) with one end tied to +5V and the other to ground.

In my current project I need to have 10 inputs protected like this and I was wondering if there was some kind of dual schottky diode array IC so I don't have to have as many discrete components on the pcb. Any tips?

 

[danjel]

So I found this product from Littlefuse:

**broken link removed**

What I am not clear on is if I still need a series resistor between my input jack and the uController input pin? (assuming each of the input lines is also routed to one of these ESD protector inputs)

 

[OlPhart]

I use a DA112S1 both on switch inputs and relay output drivers. Not cheap, but easy to use & small. The series resistor is good practice to soften the limiting function. <<<)))