ATA-100 series is an ideal power amplifier that can amplify AC and DC signals. The bandwidth is DC~5MHz, and the input resistance can be adjusted to 50Ω or 1MΩ which matches the signal source of low or high internal resistance, realizes the lossless amplification of the signal. The output resistance 0.5Ω and 50Ω are adjustable, customers can choose flexibly according to the test requirements.