SOT-23, 44V, Over-The-Top, Micropower, Precision Rail-to-Rail Comparator

The LT1716 comparator operates on any total power supply voltage between 2.7V and 44V drawing 35µA of quiescent current. The LT1716 has a unique input stage that can be taken 44V above V–, independent of V+ supply. (Built-in resistors protect the inputs for faults below the negative supply of up to 5V.) The inputs can withstand 44V both differential and common mode.

The output stage includes a class “B” pull-up current source, eliminating the need for an external resistive pull-up and saving power. Output voltage swings to within 35mV of the negative supply and 55mV of the positive supply, which makes the comparator a good choice for low voltage single supply operation. The output stage is also designed to drive loads connected to a higher supply than the LT1716 supply, the same as an open collector output stage.

The LT1716 is available in a SOT-23 5-lead package.

Applications

* Power Supply Monitors

* Relay/Lamp Driver

* Oscillators

* Peak Detector

* Level Shifting

* Operates from 2.7V to 44V

* Over-The-Top®: Input Common Mode Range Extends 44V Above V–, Independent of V+

* Micropower: 35µA IQ

* Offset Voltage: 1.5mV Max

* Valid Output with Either Input 5V Below V–