On-chip evaluation of oscillation-based-test output signals for switched-capacitor circuits
This work presents a simple and low-cost method for on-chip evaluation of test signals coming from the application of the Oscillation-Based-Test (OBT) technique. This method extracts the main test signal features (amplitude, frequency and DC level) in the digital domain requiring just a very simple and robust circuitry. Experimental results obtained from an integrated chip demonstrate the feasibility of the approach.
on-chip evaluation of test signals oscillation-based-test (obt) analog testing oversampling modulators test interpretation