TS88 Rail-To-Rail Nanopower Comparator STMicroelectronics TS88 Rail-to-Rail Nanopower Comparators feature ultra low supply current (up to 220nA typical with output high, VCC = 1.2V, no load) with rail-to-rail input and output capability. The performance of these comparators allows them to be used in a wide range of portable applications. The TS88 minimizes battery supply leakage and therefore enhances battery lifetime. Operating from 1.1V to 5.5V supply voltage, these comparators can be used over a wide temperature range (-40 to +125°C) keeping the current consumption at an ultra low level.