Ina125 Load Cell Circuit

The load cell output needed converting into a digital input using an aanalogue to digital converter adc which i covered in my previous post.

Ina125 load cell circuit.

Hello i m hoping someone could help point us in the right direction on this issue. The most difficult part will be connecting the load cell if a pin connector crimping kit is not available. The ina125 is a low power high accuracy instrumen tation amplifier with a precision voltage reference. Demo of the ina125 with a 50kg load cell on a breadboard.

Now before i even convert the analogue signalit i want to amplify it. 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. Signal black. We are using the ina12ua as an amplifier for a load cell bridge measurement circuit with two different load cells.

It has two stages of amplifier with reference amplifier. The ina125 is a 16 pin dip dual inline package ic. Signal green. Excitation white.

Pin 15 and 4 aren t connected for a start and there were a few other. The ina125 is laser trimmed for low offset. The circuit from the data sheet can be seen below. It provides complete bridge excitation and precision dif ferential input amplification on a single integrated circuit.

We ve gotten the circuit to perform well with one load cell but are having issues getting the expected output with the other. A single external resistor sets any gain from 4 to 10 000. Load cell load cell amp amp04 load cell amp ina125 load cell amplifier load cell amplifier circuit load cell amplifier design load cell amplifier diagram load cell sensor load cell tranducer.