Using 2 PIR sensors to input analog read with a leonardo

We are having problems with the Arduino Leonardo trying to input 2 analog read PIR sensors. When we hook up the second sensor the readings we get are not what is expected and the values are all over the place. So, our understanding is the Leonardo has one analog to digital converter and cannot process the signals. We set a delay to read the second sensor so it could possibly go through the analog to digital converter but no luck. We need help!

No wiring diagram or photo of the wires, no sketch, no datasheet of the PIR sensors or links to the appropriate web page. How do you expect us to help you?

So, our understanding is the Leonardo has one analog to digital converter and cannot process the signals.

The Leonardo (as all AVR 8bit Arduinos) has one ADC but an integrated analog MUX, so it is able to read more than one analog input.

Here is the data sheet of the Panasonic PIR sensors. We are using the spot detection type number 3 on the data sheet.
http://www.mouser.com/ds/2/316/napion-catalog-30281.pdf

Attached is a picture of our sensors and Arduino Leonardo with a SD shield stacked on top. We are using a power supply to power one of our sensors for just testing. Also in the picture we are using one analog PIR sensor and one digital sensor to see if that would work using a digital sensor.

I hope this information helps, thanks.

Also, we found that the analog and digital pins on our Arduino Leonardo are outputting 2.5 V when referenced to the ground on the board even when nothing specifically is attached to them. When we hook up our sensors there is a constant 2.9 voltage being sensed when no motion is detected. Because of this we are not getting the correct readings from the Serial Monitor and the Leonardo is not allowing us to use our sensors how we need to use them. In order to use our SD shield we had to hard-wire from the ICSP SCK, MOSI, MISO, and GND to a few of the digital pins but we don't think that should've mattered.

Also, we found that the analog and digital pins on our Arduino Leonardo are outputting 2.5 V when referenced to the ground on the board even when nothing specifically is attached to them.

That sounds a bit like no common ground? Are all grounds connected?

In order to use our SD shield we had to hard-wire from the ICSP SCK, MOSI, MISO, and GND to a few of the digital pins but we don't think that should've mattered.

What does that mean? Did the shield not connect them? Do you have a link to that shield?

We are using a power supply to power one of our sensors for just testing.

What voltage does that power supply have? Did you connect it's ground to GND on the Leonardo?