In a data acquisition project I am currently working on, I have several IR sensors that require a strict 5V input (1.5mA supply current). The problem is that my DAQ recorder supplies ~5V (I measure around 4.8V usually) of unregulated voltage, which causes these sensitive sensors to go haywire.
What would be a more appropriate/simple/cheap/small packaging approach:
A) step up the 4.8V to a regulated 5V?
B) step down my 13V battery (which powers the rest of the systems) to a regulated 5V?
C) Other
In the case of B, would I need to protect my sensors from the powerful battery since they have such a small supply current?
Thanks.
