MAX976 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
MAX976 Datasheet PDF : 10 Pages
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MAX976/MAX978/MAX998
Single/Dual/Quad, SOT23, Single-Supply,
High-Speed, Low-Power Comparators
______________________________Typical Operating Characteristics (continued)
(VCC = +5V, VCM = 0V, TA = +25°C, unless otherwise noted.)
SHDN
2V/div
SHUTDOWN DELAY TIME
MAX976 TOC16
VIN+ > VIN-
SHDN
2V/div
WAKE-UP FROM SHUTDOWN
MAX976 TOC17
VIN+ > VIN-
VOUT
2V/div
200ns/div
VOUT
2V/div
5µs/div
______________________________________________________________Pin Description
MAX976
SO/μMAX
1, 3
2, 4
5
6, 7
8
—
PIN
MAX978
MAX998
SO/QSOP SOT23-6
SO
1, 3, 5, 7
3
3
2, 4, 6, 8
4
2
9, 13
2
4
10, 11,
14, 15
1
6
12, 16
6
7
—
—
1, 5
—
—
5
8
NAME
FUNCTION
IN_+
IN_-
GND
OUT_
VCC
N.C.
SHDN
Comparator Noninverting Input
Comparator Inverting Input
Ground
Comparator Output
Supply Voltage, +2.7V to +5.5V
No Connection. Not internally connected.
Shutdown Input. Drive low for shutdown mode. Drive high or con-
nect to VCC for normal operation.
__________________Detailed Description
The MAX976/MAX978/MAX998 dual/quad/single com-
parators operate from a single +2.7V to +5.5V supply.
They achieve a 20ns propagation delay while consum-
ing only 225µA of 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. Activate shutdown
mode by driving SHDN low.
The MAX976/MAX978/MAX998 comparator inputs have
a common-mode voltage range of -0.2V to (VCC - 1.2V).
Either input can be driven to the Absolute Maximum
Ratings limit without false output inversion, as long as
the other input is within the Common-Mode Voltage
Range. Their push/pull output structure is capable of
rail-to-rail operation without external pull-up circuitry,
making these devices ideal for interfacing with
CMOS/TTL logic. All inputs and outputs can tolerate a
continuous short-circuit fault condition to either supply.
The comparator’s internal hysteresis ensures clean out-
put switching, even with slow-moving input signals.
Maxim Integrated
5
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