Other Parts Discussed in Thread: TINA-TI, THS4551
We intend to use the THS4541 in a differential-to-differential configuration between a mixer which has 200 Ohms output impedance and an ADC which has a high impedance input termination (>= 1 kOhms). The mixer should be terminated in 200 Ohms. The amplifier should operate at 3.3 V, have a a voltage gain of 16, and a large signal bandwidth of 10 MHz. Since the amplifier specified large signal bandwidth is 300 MHz at G = 2 and Vout = 2 Vpp (THS4541 datasheet page 8), the amplifier gain-bandwidth product should be sufficient for our application.
To match the amplifier input to the mixer output, Rg of 100 Ohms are needed. To obtain the voltage gain of 16, the resulting Rf value is 1600 Ohms. In the datasheet, however, the largest mentioned Rf is only 499 Ohms (p. 43, 47).
Our question: Can we expect the design to work to our needs (G = 16, B = 10 MHz), or are there any practical limits for Rf in terms of maintaining the gain-bandwidth product of this amplifier, e.g. stability issues? We are aware of the elevated output noise.