1LTC1841/LTC1842/LTC1843 Ultralow Power Dual Comparators with Reference LTC1843 Supply Current vs Supply Voltage SUPPLY VOLTAGE (V) 0 SU PP LY C UR RE NT (µ A) 3 4 5 8 1841/43 TA02 2 1 0 2 4 6 10 12 TA = 25°C The LTC®1841/LTC1842/LTC1843 are ultralow power dual comparators with built-in reference (LTC1842/LTC1843). The comparators feature less than 5.7µA supply current over temperature, a 1.182V ±1% reference, program- mable hysteresis and open-drain outputs that sink cur- rent. The reference output can drive a bypass capacitor of up to 0.01µF without oscillation. The LTC1841 operates from a single 2V to 11V supply or a dual ±1V to ±5.5V supply. The LTC1842/LTC1843 operate from a single 2.5V to 11V supply or a dual ±1.25V to ±5.5V supply. The LTC1842/LTC1843 hysteresis is easily programmed by using two resistors and the HYST pin. The comparators' input operates from the negative supply to within 1.3V of the positive supply. The compara- tors' output stage can typically sink greater than 20mA. By eliminating the cross-conduction current that normally happens when the comparators change logic states, power supply glitches are eliminated.
- output load
- power dual
- ±10 mv
- psrr power
- supply voltage
- mv
- µa comparator
- comparator response
- current