On-resistance and channel matching — signal attenuation budget
The 800mOhm max on-resistance is the headline spec for insertion loss. Channel-to-channel Ron matching is 100mOhm max. Off-leakage is 1nA max, and channel capacitance is 33pF/117pF.
Switching speed and charge injection
Turn-on time is 25ns max, turn-off 20ns max, which supports multiplexer update rates above 20 MHz in scanning applications. The 60pC charge injection is a moderate figure — in a sample-and-hold or precision ADC driver, a downstream buffer or longer acquisition window may be needed to settle the glitch. The -56dB crosstalk at 1MHz gives good channel isolation for audio-frequency multiplexing; at higher frequencies the isolation degrades with the 90MHz bandwidth roll-off.
Housed in a 10-pin TFSOP/MSOP (3.00mm width) package, the MAX4734EUB+T is a surface-mount device for compact PCB layouts.