Hello Darrel,
I know the topic is old , but i need help as i am new to analog. Will you be so kind to post the schematic, mostly i am looking at the use of the TLV324. I do not have a clue about op amp, and if i do not find a solution fast to our plant, my boss will send me fishing and get somebody else to replace me. In my case is simpler than the post. I have a machine with 100 heaters, and i would like to use acs712 to detect any burned out heaters, meaning 0 amps. Also i can leave with detecting any heater which is less than one amp. What i want to achieve is to have an optocoupler for each output of ltc1966, and if the current is over or equal with 1 amps to turn the opto ON. the opto will feed a digital input to my micro. If it is simpler i am happy with 0 amps too. what ever it is simpler, no need for calibration, and less components to adjust .
If you would like you can also write me at [email protected]
As the issue stands right now, i am in the hot water because i have 10 days to implement a solution.The maximum current on the heaters (110 VAC) it is 4.5 amps ac.
Thank you