The TL331 is an open collector, low−power voltage comparator designed specifically to operate over a wide supply range from 2 V to 36 V single supply and ±1 V to ±18 V for split supplies. The input common−mode voltage range includes ground, even when operated from a single power supply voltage.

• Wide Single Supply Voltage Range or Dual Supplies
• Low Supply Current
• Low Input Bias Current: 25 nA
• Low Input Offset Current: ±5 nA
• Low Input Offset Voltage: ±2 mV
• Input Common Mode Voltage Range includes Ground
• Low Output Saturation Voltage: 150 mV typ at IO = 4 mA
• Differential Input Voltage Range Equal to the Supply Voltage