The AC688 from Teledyne Microwave Solutions is a RF Amplifier with Frequency 200 to 600 MHz, Small Signal Gain 20 to 21 dB pk-pk, Gain Flatness ±0.8 to ±1 dB, Noise Figure 0.9 to 1.1 dB, Output Power 20 to 21.5 dBm. Tags: Drop-In, Power Amplifier. More details for AC688 can be seen below.