Ina125 Load Cell Circuit

We ve gotten the circuit to perform well with one load cell but are having issues getting the expected output with the other.

Ina125 load cell circuit. Arduino load cell circuit with texas instruments ina125 instrumental amplifier updated 23 11 13 the circuit is simple enough to create on a breadboard as shown in the picture above. The most difficult part will be connecting the load cell if a pin connector crimping kit is not available. Signal green. Demo of the ina125 with a 50kg load cell on a breadboard.

Connect load cell pins to the instrumentation amplifier as shown in the schematic diagram. Pin 15 and 4 aren t connected for a start and there were a few other. Hello i m hoping someone could help point us in the right direction on this issue. Demo of the ina125 with a 50kg load cell on a breadboard.

A single external resistor sets any gain from 4 to 10 000. The ina125 is a 16 pin dip dual inline package ic. Load cell interfacing schematic. The ina125 is laser trimmed for low offset.

The circuit from the data sheet can be seen below. The ina125 is a low power high accuracy instrumen tation amplifier with a precision voltage reference. Now before i even convert the analogue signalit i want to amplify it. We are using the ina12ua as an amplifier for a load cell bridge measurement circuit with two different load cells.

Excitation white. Signal black. It has two stages of amplifier with reference amplifier.