Dear Madam, Sir
I am using two ADGM1304 MEMS to be able to have 4 attenuator selection for a digitizer board. I need to have 50ohms matched impedance.
As my input goes directly to the first MEMs, I will have to compensate for Ron impedance of that MEMS. The datasheet only specifies the maximum Ron of 2.9 ohms.
What would be the minimum Ron impedance and the typical Ron impedance ? With these values I might be able to compensate the Ron value and match my specification (50ohm +/-3% input impedance)
I have found in AN-1360 rev. 0 datasheet that typical impedance of the ADGM1304 is 1.6 ohms according to Table 1. Is this value correct ?
Thank you in advance for your answer,