TIDUEU6B September 2020 – December 2021 OPA810
This reference design, TIDA-060029, demonstrates an analog signal chain solution for LCR Meter applications using an auto balancing impedance measurement method. Auto balancing impedance measurement circuits can often be challenging to stabilize because the circuit stability is dependent on both the value and type of component to be measured. Therefore, it is imperative to have a circuit solution that is inherently stable irrespective of the measured component's type and value. This design presents an analog signal-chain solution that is both inherently stable and accurate to 0.1% for LCR meter applications.