The HE190 from BOWEI Integrated Circuits is a RF Amplifier with Frequency 20 to 100 MHz, Gain 44 to 50 dB, Gain Flatness 1 to 2 dB, Noise Figure 5.5 to 6.5 dB, Output Power 7 to 9.5 dBm. Tags: Drop-In, Automatic Gain Controlled Amplifier, Variable Gain Amplifier. More details for HE190 can be seen below.