MAX978

Single-Supply Operation Down to 2.7V
20ns Propagation Delay
225A Supply Current
1nA Shutdown Supply Current
Rail-to-Rail Outputs
Ground-Sensing Inputs
Internal Hysteresis Ensures Clean Switching
Available in Space-Saving Packages: SOT23-6 (MAX998) MAX (MAX976) QSOP-16 (MAX978)

Battery-Powered Systems Threshold Detectors/Discriminators 3V Systems IR Receivers Digital Line Receivers

Supply Voltage (VCC)....................................................................................+6V
SHDN (MAX998)..................................................................................-0.3V to 6V
All Other Pins......................................................................-0.3V to (VCC + 0.3V)
Duration of Output Short Circuit to GND or VCC ................................Continuous
Continuous Power Dissipation (TA = +70°C)
6-Pin SOT23-6 (derate 7.1mW/°C above +70°C) ..................................571mW
8-Pin MAX (derate 4.10mW/°C above +70°C) .....................................330mW
8-Pin SO (derate 5.88mW/°C above +70°C)..........................................471mW
16-Pin Narrow SO (derate 8.70mW/°C above +70°C) ...........................696mW
16-Pin QSOP (derate 8.33mW/°C above +70°C)....................................667mW
Operating Temperature Range ..................................................-40°C to +85°C
Storage Temperature Range ...................................................-65°C to +160°C
Lead Temperature (soldering, 10sec) ......................................................+300°C

.

The MAX976/MAX978/MAX998 dual/quad/single, highspeed, low-power comparators are optimized for +3V/+5V single-supply applications. They achieve a 20ns propagation delay while consuming only 225A supply current per comparator. The MAX998 features a low-power shutdown mode that places the output in a high-impedance state and reduces supply current to 1nA.

The MAX976/MAX978/MAX998 inputs have a commonmode voltage range that extends 200mV below ground. Their outputs are capable of Rail-to-Rail® operation without external pull-up circuitry, making these devices ideal for interface with CMOS/TTL logic. All inputs and outputs can tolerate a continuous short-circuit fault condition to either rail. The comparators MAX978' internal hysteresis ensures clean output switching, even with slow-moving input signals.

For space-critical applications, the single MAX998 is available in a 6-pin SOT23 package, the dual MAX976 is available in an 8-pin MAX package, and the quad MAX978 is available in a 16-pin QSOP package.