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 225碌A(chǔ)
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
廬
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鈥?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 碌MAX package, and the quad
MAX978 is available in a 16-pin QSOP package.
____________________________Features
o
Single-Supply Operation Down to 2.7V
o
20ns Propagation Delay
o
225碌A(chǔ) 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)
碌MAX (MAX976)
QSOP-16 (MAX978)
MAX976/MAX978/MAX998
_______________Ordering Information
PART
MAX976ESA
MAX976EUA
MAX978ESE
MAX978EEE
MAX998ESA
MAX998EUT-T
TEMP. RANGE PIN-PACKAGE
-40擄C to +85擄C 8 SO
-40擄C to +85擄C 8 碌MAX
-40擄C to +85擄C 16 Narrow SO
-40擄C to +85擄C 16 QSOP
-40擄C to +85擄C 8 SO
-40擄C to +85擄C 6 SOT23-6
SOT
TOP MARK
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
AAAO
________________________Applications
Battery-Powered Systems
Threshold Detectors/Discriminators
3V Systems
IR Receivers
Digital Line Receivers
___________Typical Operating Circuit
V
CC
V
CC
0.1碌F
V
CC
R
D
GND
SHDN
V
CC
R1
V
CC
R2
OUT
__________________Pin Configurations
TOP VIEW
OUT
1
MAX998
6
V
CC
GND
2
5
SHDN
+ -
MAX998
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.
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
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