GENERAL DEscriptION

The SGM8749 is a single, high speed, low power comparator, which features a fast 150ns propagation delay. The device is optimized for low voltage operation on 3V or 5V supply, and consumes only 22μA supply current.

The SGM8749 supports rail-to-rail input operation. The input common mode voltage range is from -0.1V to VCC + 0.1V. The device has an open-drain output structure that needs external pull-up resistor. Any input or output pin has a continuous short-circuit protection to both power supply rails.

The SGM8749 is available in Green SOT-23-5 and SC70-5 packages. It is rated over the -40℃ to +85℃ temperature range.

FEATURES

• Low Propagation Delay: 150ns (Overdrive = 10mV)

• Low Supply Current: 22μA (TYP) at VCC = 3V

• Low Offset Voltage: 0.8mV (TYP)

• Rail-to-Rail Input

• Supply Voltage Range: 2.7V to 5.5V

• Optimized for 3V and 5V Applications

• Open-Drain Output

• Output Swing with 4mA Output Current: 185mV (TYP)

• Supports CMOS or TTL Logic

• -40℃ to +85℃ Operating Temperature Range

• Available in Green SOT-23-5 and SC70-5 Packages

APPLICATIONS

3V or 5V Applications

Portable/Battery-Powered Equipment

Mobile Phones

Zero-Crossing Detectors

Threshold Detectors

Line Receiver Units