STMicroelectronics – New dual comparator operates at very low power


The TSX3702 from STMicroelectronics is a micropower CMOS dual-voltage comparator which draws a very low current of 5μA per comparator.

The TSX3702 is an improved version of the TS3702: it draws a lower current, has a better input offset voltage, and offers enhanced ESD tolerance.

The TSX3702 is fully specified over a wide operating-temperature range of -40°C to 125°C, and is available in an automotive grade in the SO8 package version.

A wide single supply-voltage range of 2.7V to 16V gives considerable flexibility to the power- system designer. A dual supply operates in the range from ±1.35V to ±8.0V.

The TSX3702 is fully compatible with the TS3702 CMOS comparator, and is available in similar package styles, as well as additional small packages: a MiniSO8 and a 2mm x 2mm DFN8.


  • 1pA input bias current
  • Input common-mode voltage range includes ground
  • Push-pull output
  • 1012Ω input impedance
  • 2.7μs response time for 5mV overdrive
  • 4kV ESD tolerance on the human body model


  • Automotive systems
  • Industrial equipment