Other Parts Discussed in Thread: DIYAMP-EVM
Hello, I would like to ask, when testing the OPA140EVM board, the power supply is a tracking circuit, and Vcc is a plus or minus 5V power supply. When Vin=4.5V, it dose not meet the range of the input common mode voltage, but when the input voltage frequency is relatively low (such as 1kHZ), the output voltage waveform is normal, and the top is cut when the frequency is relatively high. May I ask why? Thank you!