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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX994 Datasheet

Micropower / Low-Voltage / SOT23 / Rail-to-Rail I/O Comparators

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MAX985/MAX986/MAX989/
MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
General Description
The MAX985/MAX986/MAX989/MAX990/MAX993/
MAX994 single/dual/quad micropower comparators
feature low-voltage operation and rail-to-rail inputs and
outputs. Their operating voltages range from 2.5V to
5.5V, making them ideal for both 3V and 5V systems.
These comparators also operate with ±1.25V to ±2.75V
dual supplies. They consume only 11µA of supply cur-
rent while achieving a 300ns propagation delay.
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. The
MAX985/MAX989/MAX993 have a push-pull output
stage that sinks as well as sources current. Large inter-
nal output drivers allow rail-to-rail output swing with
loads up to 8mA. The MAX986/MAX990/MAX994 have
an open-drain output stage that can be pulled beyond
VCC to 6V (max) above VEE. These open-drain versions
are ideal for level translators and bipolar to single-
ended converters.
The single MAX985 is available in a chip-scale pack-
age (UCSP™), significantly reducing the required PC
board area. The single MAX985/MAX986 are available
in 5-pin SC70 packages and the dual MAX989/MAX990
are available in 8-pin SOT23 packages.
Selector Guide
PART
MAX985
MAX986
MAX989
MAX990
MAX993
MAX994
COMPARATORS
PER PACKAGE
1
1
2
2
4
4
OUTPUT
STAGE
Push-Pull
Open-Drain
Push-Pull
Open-Drain
Push-Pull
Open-Drain
____________________________Features
o 11µA Quiescent Supply Current
o 2.5V to 5.5V Single-Supply Operation
o Common-Mode Input Voltage Range Extends
250mV Beyond the Rails
o 300ns Propagation Delay
o Push-Pull Output Stage Sinks and Sources
8mA Current (MAX985/MAX989/MAX993)
o Open-Drain Output Voltage Extends Beyond VCC
(MAX986/MAX990/MAX994)
o Unique Output Stage Reduces Output Switching
Current, Minimizing Overall Power Consumption
o 80µA Supply Current at 1MHz Switching
Frequency
o No Phase Reversal for Overdriven Inputs
o Available in Space-Saving Packages:
UCSP (MAX985)
SOT23 (MAX985/MAX986/MAX989/MAX990)
µMAX® (MAX989/MAX990)
Ordering Information
PART
PIN-PACKAGE
TOP MARK
MAX985EBT+TG45 6 UCSP
AAY
MAX985EXK+T
5 SC70
ABK
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
G45 = Protective die coating.
Ordering Information continued at end of data sheet.
Typical Application Circuit appears at end of data sheet.
Pin Configurations
TOP VIEW
(BUMPS ON BOTTOM)
Applications
Portable/Battery-
Powered Systems
Mobile Communications
Zero-Crossing Detectors
Window Comparators
Level Translators
Threshold Detectors/
Discriminators
Ground/Supply-Sensing
Applications
IR Receivers
Digital Line Receivers
UCSP is a trademark and µMAX is a registered trademark of
Maxim Integrated Products, Inc.
IN+ B1
A1 VEE
MAX985
IN- B2
A2 OUT
N.C. B3
A3 VCC
UCSP
Pin Configurations continued at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-1229; Rev 6; 8/12


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX994 Datasheet

Micropower / Low-Voltage / SOT23 / Rail-to-Rail I/O Comparators

No Preview Available !

MAX985/MAX986/MAX989/
MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to VEE) ...................................................6V
Current into Input Pins ......................................................±20mA
IN_-, IN_+ to VEE .......................................-0.3V to (VCC + 0.3V)
OUT_ to VEE
MAX985/MAX989/MAX993 ....................-0.3V to (VCC + 0.3V)
MAX986/MAX990/MAX994.....................................-0.3V to 6V
OUT_ Short-Circuit Duration to VEE or VCC ...........................10s
Continuous Power Dissipation (Multilayer board, TA = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C) ...............247mW
5-Pin SOT23 (derate 3.9mW/°C above +70°C)..........312.6mW
6-Bump UCSP (derate 3.9mW/°C above +70°C)..........308mW
8-Pin SOT23 (derate 5.1mW/°C above +70°C)..........408.2mW
8-Pin µMAX (derate 4.8mW/°C above +70°C) ...........387.8mW
8-Pin SO (derate 7.4mW/°C above +70°C)................588.2mW
14-Pin TSSOP (derate 10mW/°C above +70°C) ........796.8mW
14-Pin SO (derate 11.9mW/°C above +70°C)............952.4mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (except UCSP, soldering, 10s)..........+300°C
Soldering Temperature (reflow) ......................................+260°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.
ELECTRICAL CHARACTERISTICS
(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)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage
VCC Inferred from PSRR test
2.5 5.5 V
Supply Current per
Comparator
VCC = 5V
ICC
VCC = 2.7V
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
TA = -40°C to +85°C
12 20
24
µA
11 20
24
Power-Supply Rejection Ratio PSRR 2.5V VCC 5.5V
55 80
dB
Common-Mode Voltage
Range (Note 2)
Input Offset Voltage
(Note 3)
Input Hysteresis
VCMR
VOS
VHYST
TA = +25°C
TA = -40°C to +85°C
Full common-mode
range
TA = +25°C
TA = -40°C to +85°C
VEE -
0.25
VEE
±0.5
±3
VCC +
0.25
VCC
±5
±7
V
mV
mV
Input Bias Current
(Note 4)
IB
0.001 10
nA
Input Offset Current
Input Capacitance
Common-Mode Rejection Ratio
IOS
CIN
CMRR
0.5
1.0
52 80
pA
pF
dB
Output Leakage Current
(MAX986/MAX990/
MAX994 only)
ILEAK VOUT = high
1.0 µA
Output Short-Circuit Current
OUT Output Voltage Low
ISC
Sourcing or sinking,
VOUT = VEE or VCC
VCC = 5V
VCC = 2.7V
VCC = 5V,
ISINK = 8mA
VOL
VCC = 2.7V,
ISINK = 3.5mA
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
TA = -40°C to +85°C
95
mA
35
0.2 0.4
0.55
0.15 0.3
V
0.4
2 Maxim Integrated


Part Number MAX994
Description Micropower / Low-Voltage / SOT23 / Rail-to-Rail I/O Comparators
Maker Maxim
Total Page 12 Pages
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