On-resistance increases slightly at low supply voltages.

Maximum supply voltage (V+) must not exceed +6V.

Adding protection diode D2 causes the logic threshold

to be shifted relative to GND. Protection diodes D1 and

D2 also protect against some overvoltage situations.

With Figure 5’s circuit, if the supply voltage is below the

absolute maximum rating, and if a fault voltage up to

the absolute maximum rating is applied to an analog

signal pin, no damage results.

Fast, Low-Voltage, Dual 4

Ω SPDT

CMOS Analog Switches

_______________________________________________________________________________________

9

Figure 5. Overvoltage Protection Using Two External Blocking

Diodes

POSITIVE SUPPLY

COM_

NO_

D2

D1

GND

Vg

V+

MAX4635

MAX4636

Chip Information

TRANSISTOR COUNT: 239

PROCESS: CMOS