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MAX995ESD-T ,High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O ComparatorsGeneral Description ________
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MAX987ESA-MAX987EUK-T-MAX991ESA-MAX991EUA-MAX992ESA-MAX992EUA-MAX995ESD-MAX996ESD
High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators
_______________General DescriptionThe MAX987/MAX988/MAX991/MAX992/MAX995/
MAX996 single/dual/quad micropower comparators
feature low-voltage operation and Rail-to-Rail®inputs
and outputs. Their operating voltage ranges from +2.5V
to +5.5V, making them ideal for both 3V and 5V sys-
tems. These comparators also operate with ±1.25V to
±2.75V dual supplies. They consume only 48µA per
comparator while achieving a 120ns propagation delay.
The common-mode input voltage range extends 250mV
beyond the supply rails. Input bias current is typically
1.0pA, and input offset voltage is typically 0.5mV.
Internal hysteresis ensures clean output switching,
even with slow-moving input signals.
The output stage’s unique design limits supply-current
surges while switching, virtually eliminating the supply
glitches typical of many other comparators. This design
also minimizes overall power consumption under
dynamic conditions. The MAX987/MAX991/MAX995
have a push/pull output stage that sinks as well as
sources current. Large internal output drivers allow rail-
to-rail output swing with loads up to 8mA. The
MAX988/MAX992/MAX996 have an open-drain output
stage that can be pulled beyond VCCto 6V (max)
above VEE. These open-drain versions are ideal for
level translators and bipolar to single-ended converters.
The single MAX987/MAX988 are available in tiny 5-pin
SOT23 packages.
____________________________Features120ns Propagation Delay48µA Quiescent Supply Current+2.5V to +5.5V Single-Supply OperationCommon-Mode Input Voltage Range Extends
250mV Beyond the RailsPush/Pull Output Stage Sinks and Sources
8mA Current (MAX987/MAX991/MAX995)Open-Drain Output Voltage Extends Beyond VCC
(MAX988/MAX992/MAX996)Unique Output Stage Reduces Output Switching
Current, Minimizing Overall Power Consumption100µA Supply Current at 1MHz Switching
Frequency No Phase Reversal for Overdriven InputsAvailable in Space-Saving Packages:
5-Pin SOT23 (MAX987/MAX988)
8-Pin mMAX (MAX991/MAX992)
MAX987/MAX988/MAX991/MAX992/MAX995/MAX996
High-Speed, Micropower, Low-Voltage,
SOT23, Rail-to-Rail I/O Comparators
_________________Pin Configurations19-1266; Rev 0b; 7/97
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
________________________Applications
MAX987/MAX988/MAX991/MAX992/MAX995/MAX996
High-Speed, Micropower, Low-Voltage,
SOT23, Rail-to-Rail I/O Comparators
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS (Note 1)(VCC= +2.7V to +5.5V, VEE= 0V, VCM= 0V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (VCCto VEE) ...................................................6V
IN_-, IN_+ to VEE.......................................-0.3V to (VCC+ 0.3V)
OUT_ to VEE
MAX987/MAX991/MAX995....................-0.3V to (VCC+ 0.3V)
MAX988/MAX992/MAX996.....................................-0.3V to 6V
OUT_ Short-Circuit Duration to VEEor VCC.......................10sec
Continuous Power Dissipation (TA= +70°C)
5-Pin SOT23 (derate 7.10mW/°C above +70°C)...........571mW
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
8-Pin µMAX (derate 4.10mW/°C above +70°C)............330mW
14-Pin SO (derate 8.33 mW/°C above +70°C)..............667mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
MAX987/MAX988/MAX991/MAX992/MAX995/MAX996
High-Speed, Micropower, Low-Voltage,
SOT23, Rail-to-Rail I/O Comparators
ELECTRICAL CHARACTERISTICS (continued)(VCC= +2.7V to +5.5V, VEE= 0V, VCM= 0V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.)
Note 1:The MAX98 _EUK specifications are 100% tested at TA= +25°C. Limits over the extended temperature range are guaran-
teed by design, not production tested.
Note 2:Inferred from the VOStest. Either or both inputs can be driven 0.3V beyond either supply rail without output phase reversal.
Note 3:VOSis defined as the center of the hysteresis band at the input.
Note 4:IBis defined as the average of the two input bias currents (IB-, IB+).
__________________________________________Typical Operating Characteristics(VCC= 5V, VCM= 0V, TA= +25°C, unless otherwise noted.)
MAX987/MAX988/MAX991/MAX992/MAX995/MAX996
High-Speed, Micropower, Low-Voltage,
SOT23, Rail-to-Rail I/O Comparators
MAX987/MAX988/MAX991/MAX992/MAX995/MAX996
High-Speed, Micropower, Low-Voltage,
SOT23, Rail-to-Rail I/O Comparators
__________________________________________Typical Operating Characteristics(VCC= 5V, VCM= 0V, TA= +25°C, unless otherwise noted.)
MAX987/MAX988/MAX991/MAX992/MAX995/MAX996
High-Speed, Micropower, Low-Voltage,
SOT23, Rail-to-Rail I/O Comparators
____________________________Typical Operating Characteristics (continued)(VCC= 5V, VCM= 0V, TA= +25°C, unless otherwise noted.)
