Rail-to-rail, Fault-protected, Spst Analog Switches

The MAX4510 MAX4520 single-pole/single-throw (SPST), fault-protected Analog Switches feature a fault-protected input and Rail-to-Rail signal-handling capability. The normally open (NO) and normally closed (NC) terminals are protected from overvoltage faults up to 36V during power-on and 44V with power off. During a fault condi- tion, the Switch input terminal (NO or NC) becomes an open circuit; only nanoamperes of leakage current flow from the fault source, and the Switch output (COM) fur- nishes up to 13mA of the appropriate polarity supply voltage to the load. This ensures unambiguous Rail-to-Rail outputs when a fault begins and ends. On-resistance is 160 max. The off-leakage current is only 0.5nA at +25C and 10nA at +85C. The MAX4510 is a normally closed Switch while the MAX4520 is a normally open Switch These CMOS switches operate with dual power supplies ranging from 4.5V to 20V or a single supply between +9V and +36V. The digital input has +0.8V and +2.4V Logic thresholds, ensuring both TTL- and CMOS-logic compatibility when using 15V or a single +12V supply. The MAX4510 MAX4520 are available in 6-pin SOT23 and 8-pin MAX packages By Maxim Integrated Products