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MAX985EBT+TG45

P1-P3P4-P6P7-P9P10-P12
19-1229; Rev 6; 8/12
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
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
V
CC
to 6V (max) above V
EE
. 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.
____________________________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 V
CC
(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)
TOP VIEW
(BUMPS ON BOTTOM)
UCSP
MAX985
B1
B2
B3
A1
A2
A3
IN+
IN-
N.C.
V
EE
OUT
V
CC
Pin Configurations
Ordering Information
Ordering Information continued at end of data sheet.
Typical Application Circuit appears at end of data sheet.
Pin Configurations continued at end of data sheet.
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
PART PIN-PACKAGE TOP MARK
MAX985EBT+TG45 6 UCSP
AAY
MAX985EXK+T 5 SC70
ABK
Applications
Selector Guide
PART
COMPARATORS
PER PACKAGE
OUTPUT
STAGE
MAX985 1 Push-Pull
MAX986 1 Open-Drain
MAX989 2 Push-Pull
MAX990 2 Open-Drain
MAX993 4 Push-Pull
MAX994 4 Open-Drain
UCSP is a trademark and µMAX is a registered trademark of
Maxim Integrated Products, Inc.
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.
MAX985/MAX986/MAX989/
MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
2
Maxim Integrated
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= 2.7V to 5.5V, V
EE
= 0V, V
CM
= 0V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
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 (V
CC
to V
EE
) ...................................................6V
Current into Input Pins ......................................................±20mA
IN_-, IN_+ to V
EE
.......................................-0.3V to (V
CC
+ 0.3V)
OUT_ to V
EE
MAX985/MAX989/MAX993 ....................-0.3V to (V
CC
+ 0.3V)
MAX986/MAX990/MAX994.....................................-0.3V to 6V
OUT_ Short-Circuit Duration to V
EE
or V
CC
...........................10s
Continuous Power Dissipation (Multilayer board, T
A
= +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
Inferred from PSRR test
CONDITIONS
V2.5 5.5V
CC
Supply Voltage
UNITSMIN TYP MAXSYMBOLPARAMETER
12 20
2.5V ≤ V
CC
≤ 5.5V dB55 80PSRRPower-Supply Rejection Ratio
V
CC
= 5V
24
mV
±0.5 ±5
T
A
= +25°C
V
EE
-V
CC
+
0.25 0.25
±3V
HYST
Input Hysteresis
Full common-mode
range
nAI
B
Input Bias Current
(Note 4)
0.001 10
pF1.0C
IN
Input Capacitance
dB52 80CMRRCommon-Mode Rejection Ratio
pA0.5I
OS
Input Offset Current
±7
V
OS
Input Offset Voltage
(Note 3)
V
OUT
= high µA1.0I
LEAK
Output Leakage Current
(MAX986/MAX990/
MAX994 only)
35
95
T
A
= +25°C
T
A
= -40°C to +85°C
11 20
V
CC
= 2.7V
µA
24
I
CC
Supply Current per
Comparator
T
A
= +25°C
T
A
= -40°C to +85°C
Sourcing or sinking,
V
OUT
= V
EE
or V
CC
I
SC
Output Short-Circuit Current
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= -40°C to +85°C V
EE
V
CC
VV
CMR
Common-Mode Voltage
Range (Note 2)
mV
V
CC
= 5V
V
CC
= 2.7V
mA
V
CC
= 5V,
I
SINK
= 8mA
0.55
0.2 0.4
V
OL
OUT Output Voltage Low
V
CC
= 2.7V,
I
SINK
= 3.5mA
V
0.4
0.15 0.3
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= -40°C to +85°C
3
Maxim Integrated
MAX985/MAX986/MAX989/
MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 2.7V to 5.5V, V
EE
= 0V, V
CM
= 0V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
µs20t
PU
Power-Up Time
nsV
CC
= 5.0V
80
t
FALL
OUT Fall Time 50
40
300
450
100mV overdrive
100mV overdrive
C
L
= 15pF
300
t
PD+
Propagation Delay
450
ns
450
t
PD-
300
MAX985/MAX989/
MAX993 only
10mV overdrive
100mV overdrive
MAX985/MAX989/
MAX993 only, C
L
= 15pF
10mV overdrive
10mV overdrive
C
L
= 15pF
C
L
= 50pF
C
L
= 200pF
MAX986/MAX990/
MAX994 only,
R
PULLUP
= 5.1kΩ
Note 1: All device specifications are 100% production tested at T
A
= +25°C. Limits over the extended temperature range are guar-
anteed by design.
Note 2: Inferred from the V
OS
test. Both or either inputs can be driven 0.3V beyond either supply rail without output phase reversal.
Note 3: V
OS
is defined as the center of the hysteresis band at the input.
Note 4: I
B
is defined as the average of the two input bias currents (I
B-
, I
B+
).
C
L
= 15pF
C
L
= 50pF
C
L
= 200pF
V
CC
= 5.0V ns
80
t
RISE
OUT Rise Time
(MAX985/MAX989/
MAX993 only)
50
40
V
CC
= 5V,
I
SOURCE
= 8mA
V
4.6 4.85
V
OH
OUT Output Voltage High
(MAX985/MAX989/
MAX993 only)
T
A
= +25°C
4.45T
A
= -40°C to +85°C
V
CC
= 2.7V,
I
SOURCE
= 3.5mA
2.4 2.55T
A
= +25°C
2.3T
A
= -40°C to +85°C
P1-P3P4-P6P7-P9P10-P12

MAX985EBT+TG45

Mfr. #:
Buy MAX985EBT+TG45
Manufacturer:
Maxim Integrated
Description:
Analog Comparators Single uPower Comparator
Lifecycle:
New from this manufacturer.
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