Precision comparator provides low-power and high-accuracy

Texas Instruments TLV4011 Precision Comparator is a high-accuracy and low-power comparator with a precision integrated reference. Two external resistors are able to be connected to the input to produce an adjustable voltage threshold down to 1.226V. The factory-trimmed switching threshold and precision hysteresis connect to make the device suitable for voltage and current monitoring in harsh and noisy environments where slow-moving input signals need to be converted into clean digital outputs. Likewise, brief glitches on the input are rejected, therefor assuring stable output operation without false triggering.

Throughout power-on, RESET is asserted (LOW) when the supply voltage VDD grows higher than 0.8V. Afterwards, the device monitors the input and keeps RESET active (LOW) while the input continues below the threshold voltage VIT. As soon as the input increases above the threshold voltage VIT, RESET is de-asserted (HIGH). The product spectrum is intended for 1.8V, 3.3V, 5V, and adjustable supply voltages. The device is offered in a five-pin SC-70 package and is characterised for operation over a temperature range of –40C to 85C.

Typical applications include electricity meters, circuit breakers, thermostats, and cordless power tools.