AS1977

www.DataSheet4U.com AS1976, AS1977 U l t r a - L o w C u r r e n t , 1 . 8 V C o m pa r a t o r s D a ta S he e t 1 General Description The AS1976/AS1977 are very low-current comparators that can operate beyond the rail voltages and are guaranteed to operate down to 1.8V Low input bias current, current-limiting output circuitry, and ultra-small packaging make these comparators ideal for low-power 2-cell applications including powermanagement and power-monitoring systems. The comparators are available as the standard products listed in Table 1. Table 1. Standard Products 2 Key Features ! CMOS Push/Pull Output Sinks and Sources 8mA (AS1976) CMOS Open-Drain Output Voltage Extends Beyond VCC (AS1977) Ultra-Low Supply Current: 200nA Internal Hysteresis: 3mV 3V-to5V Logiv-Level Translation Guaranteed to Operate Down to +1.8V Input Voltage Range Operates 200mV Beyond the Rails Crowbar Current-Free Switching No Phase Reversal for Overdriven Inputs 5-pin SOT23 Package ! ! ! ! Model AS1976 AS1977 Output Type Push/Pull Open-Drain Current 200nA 200nA ! ! The AS1976 push/pull output can sink or source current. The AS1977 open-drain output can be pulled beyond VCC to a maximum of 6V > VEE. This open-drain model is ideal for use as a logic-level translator or bipolar-tounipolar converter. Large internal output drivers provide rail-to-rail output swings with loads up to 8mA. Both devices feature builtin battery power-management and power-monitoring circuitry. The AS1976/AS1977 a...