SG Micro Corp

SGM8743 6ns, Low-Power, 3V/5V, Rail-to-Rail Input Single-Supply Comparator


The SGM8743 is a single high-speed comparator optimized for systems powered from a 3V or 5V supply. The device features high-speed response, low-power consumption, and rail-to-rail input range. Propagation delay is 6ns, while supply current is only 1.3mA.

The input common mode range of the SGM8743 extends beyond both power supply rails. The output pulls to within 0.1V of either supply rail without external pull-up circuitry, making the device ideal for interface with both CMOS and TTL logics. All input and output pins can tolerate a continuous short-circuit fault condition to either rail. Internal hysteresis ensures clean output switching, even with slow-moving input signals.

The SGM8743 is available in Green SOT-23-5 and SC70-5 packages. It is rated over the -40 to +85 temperature range.



• Fast, 6ns Propagation Delay (100mV Overdrive)
• Low Power Consumption:
  1.3mA (TYP) at V
S = 3V
• Wide Supply Voltage Range: 2.7V to 5.5V
• Optimized for 3V and 5V Applications
• Rail-to-Rail Input Voltage Range
• Low Offset Voltage: 0.8mV (TYP)
• Internal Hysteresis for Clean Switching
• Output Swing to within 195mV from Rails with
  4mA Output Current
• CMOS/TTL-Compatible Output
• -40 to +85 Operating Temperature Range
• Available in Green SOT-23-5 and SC70-5 Packages


Line Receivers
Battery-Powered Systems
Threshold Detectors/Discriminators
3V/5V Systems
Zero-Crossing Detectors
Sampling Circuits


Part Number Status Package Pins Pb-Free Temp Range
SGM8743YN5G/TR Production SOT-23-5 5 Y -40℃ to +85℃ Samples
SGM8743YC5G/TR Production SC70-5 5 Y -40℃ to +85℃ Samples

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