Texas Instruments AMC22C12/AMC22C12-Q1 Isolated window comparator

     Texas Instruments AMC22C12/AMC22C12-Q1 Isolated window comparator is an isolated window comparator with short response time. The leak-open output is separated from the input circuit by an isolation gate with high anti-magnetic interference capability. The barrier is certified to provide current isolation up to 3kVRMS in compliance with DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 standards. It also supports operating voltages up to 560VRMS.

     The comparison window is centered on 0V, which means that if the absolute value of the input voltage exceeds the trip threshold, then the comparator will trip. The trip threshold can be adjusted in the range of 20mV to 300mV by a single external resistor, so the comparison window has a range of ±20mV to ±300mV. When the voltage on the REF pin is greater than 550mV, the negative comparator is disabled and only the positive comparator operates normally.

     The reference voltage in this mode can be up to 2.7V. This mode is particularly useful for monitoring voltage sources.Open/leak output on the device supports transparent mode (latch input connected to GND2), that is, the output follows the input state; Or latch mode, which clears the output at the falling edge of the latch input signal. Available in an 8-pin SOIC package, the AMC22C12/AMC22C12-Q1 is rated for extended industrial temperature ranges from -- 40°C to +125°C. The Texas Instruments AMC22C12-Q1 device meets the AEC-Q100 standard for automotive applications.