The LM311 series is a monolithic, low input current voltage comparator. The device is also designed to operate from dual or single supply voltage.
Features
Low input bias current : 250nA (Max)
Low input offset current : 50nA (Max)
Differential Input Voltage : ±30V
Power supply voltage : single 5.0V supply to ±15V.
Offset voltage null capability.
Strobe capability.