Understanding ACS7xx Current Sensor

dominicfhk:
Hey guys, sorry for digging up this old post. I am making the PCB right now and I am wondering what is the purpose of the 0.1uF cap.

Let say I am going to include 10 ACS714 on a single board. According to the data sheet, a 0.1uF cap is suppose to be connected from VCC to GND. Can I just use one cap for all the ACS714? Should it be 0.1uF or 1uF? Thank you so much!

It's the typical .1ufd bypass chip that all ICs should have mounted as close to each IC as possible. Don't try to skimp or combine into one or few caps.

Lefty