Quad SPST-NC switch with 10 Ohm on-resistance
The MAX4615CUD+ is a quad single-pole single-throw normally-closed (SPST-NC) analog switch from Analog Devices, packaged in a 14-TSSOP. Each of the four switches connects a common terminal to its normally-closed output when the control logic is low, and opens the path when the control is high — a 1:1 multiplexer/demultiplexer topology per channel. With a maximum on-resistance of 10 Ohm and channel-to-channel matching within 200 mOhm, the switch maintains consistent signal attenuation across all four paths. The 70 MHz -3 dB bandwidth means it passes high-speed analog or digital signals up to that frequency with minimal roll-off, while the -96 dB crosstalk at 100 kHz keeps adjacent channels isolated — useful in precision audio or data acquisition where bleed-through would corrupt the measurement.
Supply flexibility and switching speed
Turn-on time is 12 ns maximum, turn-off 10 ns maximum — fast enough for sample-and-hold front ends or multiplexed ADC inputs where the switch must settle before the conversion starts. Charge injection is 6.5 pC typical, which appears as a small voltage glitch on the signal path when the switch opens or closes. For a 10 pF hold capacitor, that translates to roughly 650 mV of step — something to budget for in precision circuits. Off-state leakage is 1 nA maximum, and each channel presents 5 pF of capacitance to ground in the off state, so the switch does not load the source significantly when disabled.
Active production, RoHS3 compliant
The tube packaging (50 units per tube typical) suits prototype and low-volume assembly; for reel packaging, check the alternate order code if high-volume pick-and-place is needed.