Switch selection constraints at 10 ohms
The MAX4619EUE+ is a 3-circuit SPDT analog switch with a maximum on-state resistance of 10 ohms, making it a fit for low-voltage signal routing where insertion loss and signal attenuation must be minimised. Each switch handles rail-to-rail analog signals within the 2V to 5.5V single-supply range. The 200 mOhm channel-to-channel matching keeps gain errors consistent across the three SPDT sections, which matters when switching matched-pair signals like differential audio or sensor bridge outputs.
Crosstalk and charge injection — what they mean for signal fidelity
Crosstalk is -96 dB at 100 kHz. Charge injection is 3 pC.
Switching speed and leakage
Maximum turn-on time is 15 ns, turn-off 10 ns, which puts this in the fast-SPDT class suitable for multiplexing data signals at low-MHz rates or for switching between gain-setting resistors in a programmable amplifier before each ADC conversion. The 1 nA max off-leakage across temperature means the switch won't load the signal line when it is deselected — critical in multi-drop sensor buses or when the off-channel must stay high-impedance. Channel capacitance is 5 pF on each source pin and 8.5 pF on the drain, so the RC time constant into a 10 ohm switch is negligible, but cascaded traces and PCB parasitics will dominate your bandwidth limit, not the part itself.
The 16-TSSOP body is 4.40 mm wide. Surface-mount only. Tube shipping.
For BOM freeze planning, this part is a stable baseline — no LTB pressure, no PCN for die-shrink or package change that would force a qualification cycle.