Hi
I am using a load cell CZL601 the output of which is maximum 24mV. I would be using only 10 kg maximum so nearly 5mV. I want to amplify the same for giving to microcontroller at89c52 through an Adc. The Adc I purchased is adc0804. I used an instrumentation amplifier ckt with three op-amps but I get no output even after applying load. Can anybody tell me an amplifier ic to amplify the load cell output and to be given to microcontroller.
Single amplifier ic instead of using three opamps. Can anybody suggest..
hi ,
use 741 with gain of 1000 , will do ...
**broken link removed**r
in the above example i used the op amp to get the voltage drop of the 0.00491 ohm resistor at measurable level for a PIC's ADC ... (the maximum current taken by Rs is about 30A , so voltage drop on 0.0049 rezistor is max 0.147V ..... )