My customer uses MAX4619 as a signal isolator and 2:1 MUX. They like it because it has -93dB off-isolation and -96dB crosstalk. The signal they are trying to isolate and pass is 20-30MHz. 5V supply is good enough, low distortion is probably helpful.
What is TI's lowest crosstalk and best off-isolation 2:1 mux ? Is TS5A21366 my best option?
Shashank,
The cross talk and isolation performance specifications vary with frequency. You cannot state a value of -93dB off-isolation and -96dB crosstalk with out stating which frequency this performance is measured. For signal switches, the off-isolation and cross talk performance degraded as the signal frequency increases. You can see this in the graphs in the datasheet.
TS5A23166
Since you are looking to isolate 20-30MHz signals that is the point on the graph we would like to compare between devices
The TS5A21366 is a good choice for low cross talk switch and THD+N as it performs better than the MAX4619. You can also look at the TS5A23157 which has a little bit better off isolation performance than the TS5A21366 @ 30MHz -55dB vs MAX4619 -42dB.
TS5A23157
Jake,
To do some quick testing we recommend ordering a simple break out board from digikey.
What type of testing do you need to the TS5A23157? What is the performance expectation?
Thank you,
Adam
