Ina125 Load Cell Circuit

Signal green.

Ina125 load cell circuit.

The ina125 is a 16 pin dip dual inline package ic. It has two stages of amplifier with reference amplifier. Connect load cell pins to the instrumentation amplifier as shown in the schematic diagram. It provides complete bridge excitation and precision dif ferential input amplification on a single integrated circuit.

The ina125 is a low power high accuracy instrumen tation amplifier with a precision voltage reference. The load cell output needed converting into a digital input using an aanalogue to digital converter adc which i covered in my previous post. Load cell interfacing schematic. Signal black.

Excitation white. Demo of the ina125 with a 50kg load cell on a breadboard. 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. We are using the ina12ua as an amplifier for a load cell bridge measurement circuit with two different load cells.

A single external resistor sets any gain from 4 to 10 000. Demo of the ina125 with a 50kg load cell on a breadboard. The circuit from the data sheet can be seen below. Pin 15 and 4 aren t connected for a start and there were a few other.

Now before i even convert the analogue signalit i want to amplify it. 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.