MAX976 Datasheet, PDF (1/8 Pages) Maxim Integrated Products – Single/Dual/Quad, SOT23, Single-Supply, High-Speed, Low-Power Comparators

19-1299; Rev 1; 1/98
Single/Dual/Quad, SOT23, Single-Supply,
High-Speed, Low-Power Comparators
________________General Description
The MAX976/MAX978/MAX998 dual/quad/single, high-
speed, low-power comparators are optimized for
+3V/+5V single-supply applications. They achieve a
20ns propagation delay while consuming only 225µA
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 common-
mode 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 con-
dition to either rail. The comparators’ 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 µMAX package, and the quad
MAX978 is available in a 16-pin QSOP package.
________________________Applications
Battery-Powered Systems
Threshold Detectors/Discriminators
3V Systems
IR Receivers
Digital Line Receivers
____________________________Features
o Single-Supply Operation Down to 2.7V
o 20ns Propagation Delay
o 225µA Supply Current
o 1nA Shutdown Supply Current
o Rail-to-Rail Outputs
o Ground-Sensing Inputs
o Internal Hysteresis Ensures Clean Switching
o Available in Space-Saving Packages:
SOT23-6 (MAX998)
µMAX (MAX976)
QSOP-16 (MAX978)
_______________Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
SOT
TOP MARK
MAX976ESA -40°C to +85°C 8 SO
—
MAX976EUA -40°C to +85°C 8 µMAX
—
MAX978ESE -40°C to +85°C 16 Narrow SO
—
MAX978EEE -40°C to +85°C 16 QSOP
—
MAX998ESA -40°C to +85°C 8 SO
MAX998EUT-T -40°C to +85°C 6 SOT23-6
—
AAAO
___________Typical Operating Circuit __________________Pin Configurations
V_CC
R_D
R1
V_CC
V_CC
0.1µF
V_CC
OUT
GND _SHDN
V_CC
R2
MAX998
TOP VIEW
OUT 1
MAX998 _{6 VCC}
GND 2
5 SHDN
+-
IN+ 3
4 IN-
SOT23-6
IR RECEIVER
Pin Configurations continued at end of data sheet
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
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