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.
____________________________Features
o11µA Quiescent Supply Current
o2.5V to 5.5V Single-Supply Operation
oCommon-Mode Input Voltage Range Extends
250mV Beyond the Rails
o300ns Propagation Delay
oPush-Pull Output Stage Sinks and Sources
8mA Current (MAX985/MAX989/MAX993)
oOpen-Drain Output Voltage Extends Beyond VCC
(MAX986/MAX990/MAX994)
oUnique Output Stage Reduces Output Switching
Current, Minimizing Overall Power Consumption
o80µA Supply Current at 1MHz Switching
Frequency
oNo Phase Reversal for Overdriven Inputs
oAvailable in Space-Saving Packages:
UCSP (MAX985)
SOT23 (MAX985/MAX986/MAX989/MAX990)
µMAX®(MAX989/MAX990)
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
TOP VIEW
(BUMPS ON BOTTOM)
UCSP
MAX985
B1
B2
B3
A1
A2
A3
IN+
IN-
N.C.
VEE
OUT
VCC
Pin Configurations
19-1229; Rev 5; 4/12
1
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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+T 6 UCSP-6 AAY
MAX985EXK+T 5 SC70-5 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.
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
2
ABSOLUTE MAXIMUM RATINGS
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)
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 (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 (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) ......................................+260°C
Inferred from PSRR test
CONDITIONS
V2.5 5.5VCC
Supply Voltage
UNITSMIN TYP MAXSYMBOLPARAMETER
12 20
2.5V ≤VCC ≤5.5V dB55 80PSRRPower-Supply Rejection Ratio
VCC = 5V 24
mV
±0.5 ±5
TA= +25°C VEE -V
CC +
0.25 0.25
±3VHYST
Input Hysteresis
Full common-mode
range
nAIB
Input Bias Current
(Note 4) 0.001 10
pF1.0CIN
Input Capacitance
dB52 80CMRRCommon-Mode Rejection Ratio
pA0.5IOS
Input Offset Current
±7
VOS
Input Offset Voltage
(Note 3)
VOUT = high µA1.0ILEAK
Output Leakage Current
(MAX986/MAX990/
MAX994 only)
35
95
TA= +25°C
TA= -40°C to +85°C
11 20
VCC = 2.7V
µA
24
ICC
Supply Current per
Comparator TA= +25°C
TA= -40°C to +85°C
Sourcing or sinking,
VOUT = VEE or VCC
ISC
Output Short-Circuit Current
TA= +25°C
TA= -40°C to +85°C
TA= -40°C to +85°C VEE VCC
VVCMR
Common-Mode Voltage
Range (Note 2)
mV
VCC = 5V
VCC = 2.7V mA
VCC = 5V,
ISINK = 8mA 0.55
0.2 0.4
VOL
OUT Output Voltage Low VCC = 2.7V,
ISINK = 3.5mA
V
0.4
0.15 0.3
TA= +25°C
TA= -40°C to +85°C
TA= +25°C
TA= -40°C to +85°C
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
3
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)
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
µs20tPU
Power-Up Time
nsVCC = 5.0V
80
tFALL
OUT Fall Time 50
40
300
450
100mV overdrive
100mV overdrive
CL= 15pF
300
tPD+
Propagation Delay
450
ns
450
tPD-
300
MAX985/MAX989/
MAX993 only
10mV overdrive
100mV overdrive
MAX985/MAX989/
MAX993 only, CL= 15pF
10mV overdrive
10mV overdrive
CL= 15pF
CL= 50pF
CL= 200pF
MAX986/MAX990/
MAX994 only,
RPULLUP = 5.1kΩ
Note 1: All device specifications are 100% production tested at TA= +25°C. Limits over the extended temperature range are guar-
anteed by design.
Note 2: Inferred from the VOS test. Both or either inputs can be driven 0.3V beyond either supply rail without output phase reversal.
Note 3: VOS is 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+).
CL= 15pF
CL= 50pF
CL= 200pF
VCC = 5.0V ns
80
tRISE
OUT Rise Time
(MAX985/MAX989/
MAX993 only)
50
40
VCC = 5V,
ISOURCE = 8mA
V
4.6 4.85
VOH
OUT Output Voltage High
(MAX985/MAX989/
MAX993 only)
TA= +25°C
4.45TA= -40°C to +85°C
VCC = 2.7V,
ISOURCE = 3.5mA
2.4 2.55TA= +25°C
2.3TA= -40°C to +85°C
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
4
__________________________________________Typical Operating Characteristics
(VCC = 5V, VCM = 0V, TA= +25°C, unless otherwise noted.)
10,000
1
0.01 0.1 1 10 100
OUTPUT LOW VOLTAGE
vs. OUTPUT SINK CURRENT
MAX985-04
OUTPUT SINK CURRENT (mA)
OUTPUT LOW VOLTAGE (mV) (VOL)
10
100
1000
VIN+ < VIN-
VCC = 2.7V
VCC = 5.0V
600
350
0 200 1000
PROPAGATION DELAY
vs. CAPACITIVE LOAD (VCC = 3V)
500
450
400
550
MAX985-05a
CAPACITIVE LOAD (pF)
tPD (ns)
400 800600
VOD = 50mV
TO VOUT = 50% OF
FINAL VALUE
TO VOUT = 10% OF
FINAL VALUE
120
0
-60 100
OUTPUT SHORT-CIRCUIT
CURRENT vs. TEMPERATURE
20
10
90
80
110
100
MAX985-06
TEMPERATURE (°C)
OUTPUT SINK CURRENT (mA)
-40 -20 0 20 40 60 80
70
60
50
40
30
VCC = 5.0V
VCC = 2.7V
530
350
0 200 1000
PROPAGATION DELAY
vs. CAPACITIVE LOAD (VCC = 5V)
450
430
410
390
370
510
490
470
MAX985-05b
CAPACITIVE LOAD (pF)
tPD (ns)
400 800600
VOD = 50mV
TO VOUT = 50% OF
FINAL VALUE
TO VOUT = 10% OF
FINAL VALUE
1.1
-0.3
-60 100
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
-0.1
0.7
0.9
MAX985-07
TEMPERATURE (°C)
OFFSET VOLTAGE (mV)
-40 -20 0 20 40 60 80
0.5
0.3
0.1
10,000
0.1
0.01 0.1 1 10 100
OUTPUT HIGH VOLTAGE
vs. OUTPUT SOURCE CURRENT
1
MAX985-08
OUTPUT SOURCE CURRENT (mA)
OUTPUT HIGH VOLTAGE (VCC - VOH)
(mV)
10
100
1000
VIN+ > VIN-
VCC = 5.0V
VCC = 2.7V
18
8
-60 100
SUPPLY CURRENT
vs. TEMPERATURE
10
9
16
17
15
MAX985-01
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
-40 -20 0 20 40 60 80
14
13
12
11
VIN+ > VIN-
VCC = 5.0V
VCC = 2.7V
1000
1
0.01 0.1 1 10 100 1000
SUPPLY CURRENT vs.
OUTPUT TRANSITION FREQUENCY
MAX985-02
OUTPUT TRANSITION FREQUENCY (kHz)
SUPPLY CURRENT (µA)
10
100
VCC = 5.0V
VCC = 2.7V
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
5
MAX985/MAX989/MAX993
SWITCHING CURRENT, OUT RISING
IN+
OUT
ICC
MAX985-13
100ns/div
50mV/
div
2V/div
1mA/div
VOD = 50mV
SWITCHING CURRENT, OUT FALLING
IN+
OUT
ICC
MAX985-14
100ns/div
50mV/
div
2V/div
1mA/div
VOD = 50mV
1MHz RESPONSE
IN+
OUT
MAX985-15
200ns/div
50mV/
div
2V/div
VOD = 50mV
POWER-UP DELAY
VCC
OUT
MAX985-16
5µs/div
VIN- = 50mV
VIN+ = 0V
900
800
700
600
0
0 80 120 160 200
PROPAGATION DELAY
vs. INPUT OVERDRIVE
500
400
300
200
100
MAX985-10
INPUT OVERDRIVE (mV)
tPD (ns)
40
VCC = 2.7V
VCC = 5.0V
450
380
-40 100
PROPAGATION DELAY
vs. TEMPERATURE
390
430
440
MAX985-09
TEMPERATURE (°C)
tPD (ns)
-20 0 20 40 60 80
420
410
400
TO VOUT = 50% POINT
OF FINAL VALUE
TO VOUT = 10% POINT
OF FINAL VALUE
VOD = 50mV
MAX985/MAX989/MAX993
PROPAGATION DELAY (tPD+)
IN+
OUT
MAX985-11
100ns/div
50mV
/
div
2V/div
VOD = 50mV
PROPAGATION DELAY (tPD-)
IN+
OUT
MAX985-12
100ns/div
50mV/
div
2V/div
VOD = 50mV
____________________________Typical Operating Characteristics (continued)
(VCC = 5V, VCM = 0V, TA= +25°C, unless otherwise noted.)
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
6
Pin/Bump Description
*
MAX985 only
BUMP PIN
MAX985 MAX985/
MAX986
MAX989/
MAX990
MAX993/
MAX994
UCSP* SO SOT23/
SC70
SO/µMAX/
SOT23
SO/
TSSOP
NAME FUNCTION
A2 6 1 — — OUT Comparator Output
A3 7 2 8 4 VCC Positive Supply Voltage
B1 3 3 — — IN+ Comparator Noninverting Input
B2 2 4 — — IN- Comparator Inverting Input
A1 4 5 4 11 VEE Negative Supply Voltage
— — — 1 1 OUTA Comparator A Output
— — — 2 2 INA- Comparator A Inverting Input
— — — 3 3 INA+ Comparator A Noninverting Input
— — — 5 5 INB+ Comparator B Noninverting Input
— — — 6 6 INB- Comparator B Inverting Input
— — — 7 7 OUTB Comparator B Output
— — — — 8 OUTC Comparator C Output
— — — — 9 INC- Comparator C Inverting Input
10 INC+ Comparator C Noninverting Input
12 IND+ Comparator D Noninverting Input
13 IND- Comparator D Inverting Input
14 OUTD Comparator D Output
B3 1, 5, 8 — — — N.C. No Connection. Not internally connected.
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
7
_______________Detailed Description
The MAX985/MAX986/MAX989/MAX990/MAX993/
MAX994 are single/dual/quad low-power, low-voltage
comparators. They have an operating supply voltage
range between 2.5V and 5.5V and consume only 11µA.
Their common-mode input voltage range extends 0.25V
beyond each rail. Internal hysteresis ensures clean out-
put switching, even with slow-moving input signals.
Large internal output drivers allow rail-to-rail output
swing with up to 8mA loads.
The output stage employs a unique design that mini-
mizes supply-current surges while switching, virtually
eliminating the supply glitches typical of many other
comparators. The MAX985/MAX989/MAX993 have a
push-pull output structure that sinks as well as sources
current. The MAX986/MAX990/MAX994 have an open-
drain output stage that can be pulled beyond VCC to an
absolute maximum of 6V above VEE.
Input Stage Circuitry
The devices’ input common-mode range extends from
-0.25V to (VCC + 0.25V). These comparators may oper-
ate at any differential input voltage within these limits.
Input bias current is typically 1.0pA if the input voltage
is between the supply rails. Comparator inputs are pro-
tected from overvoltage by internal body diodes con-
nected to the supply rails. As the input voltage exceeds
the supply rails, these body diodes become forward
biased and begin to conduct. Consequently, bias cur-
rents increase exponentially as the input voltage
exceeds the supply rails.
Output Stage Circuitry
These comparators contain a unique output stage
capable of rail-to-rail operation with up to 8mA loads.
Many comparators consume orders of magnitude more
current during switching than during steady-state oper-
ation. However, with this family of comparators, the
supply-current change during an output transition is
extremely small. The
Typical Operating Characteristics
graph Supply Current vs. Output Transition Frequency
shows the minimal supply-current increase as the out-
put switching frequency approaches 1MHz. This char-
acteristic eliminates the need for power-supply filter
capacitors to reduce glitches created by comparator
switching currents. Another advantage realized in high-
speed, battery-powered applications is a substantial
increase in battery life.
__________Applications Information
Additional Hysteresis
MAX985/MAX989/MAX993
The MAX985/MAX989/MAX993 have ±3mV internal
hysteresis. Additional hysteresis can be generated with
three resistors using positive feedback (Figure 1).
Unfortunately, this method also slows hysteresis
response time. Use the following procedure to calcu-
late resistor values for the MAX985/MAX989/MAX993.
1) Select R3. Leakage current at IN is under 10nA, so
the current through R3 should be at least 1µA to
minimize errors caused by leakage current. The cur-
rent through R3 at the trip point is (VREF - VOUT) /
R3. Considering the two possible output states in
solving for R3 yields two formulas: R3 = VREF / 1µA
or R3 = (VREF - VCC) / 1µA. Use the smaller of the
two resulting resistor values. For example, if VREF =
1.2V and VCC = 5V, then the two R3 resistor values
are 1.2MΩand 3.8MΩ. Choose a 1.2MΩstandard
value for R3.
2) Choose the hysteresis band required (VHB). For this
example, choose 50mV.
3) Calculate R1 according to the following equation:
R1 = R3 x (VHB / VCC)
For this example, insert the values R1 = 1.2MΩx
(50mV / 5V) = 12kΩ.
4) Choose the trip point for VIN rising (VTHR; VTHF is
the trip point for VIN falling). This is the threshold
voltage at which the comparator switches its output
from low to high as VIN rises above the trip point. For
this example, choose 3V.
VCC
MAX985
MAX989
MAX993
OUT
R3
R1
R2
VREF
VEE
VIN
VCC
Figure 1. Additional Hysteresis (MAX985/MAX989/MAX993)
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
8
5) Calculate R2 as follows. For this example, choose an
8.2kΩstandard value:
6) Verify trip voltages and hysteresis as follows:
MAX986/MAX990/MAX994
The MAX986/MAX990/MAX994 have ±3mV internal
hysteresis. They have open-drain outputs and require
an external pullup resistor (Figure 2). Additional hys-
teresis can be generated using positive feedback, but
the formulas differ slightly from those of the
MAX985/MAX989/MAX993.
Use the following procedure to calculate resistor
values:
1) Select R3 according to the formulas R3 = VREF /
500µA or R3 = (VREF - VCC) / 500µA - R4. Use the
smaller of the two resulting resistor values.
2) Choose the hysteresis band required (VHB). For this
example, choose 50mV.
3) Calculate R1 according to the following equation:
R1 = (R3 + R4) x (VHB / VCC)
4) Choose the trip point for VIN rising (VTHR; VTHF is
the trip point for VIN falling). This is the threshold
voltage at which the comparator switches its output
from low to high as VIN rises above the trip point.
5) Calculate R2 as follows:
6) Verify trip voltages and hysteresis as follows:
Board Layout and Bypassing
Power-supply bypass capacitors are not typically need-
ed, but use 100nF bypass capacitors when supply
impedance is high, when supply leads are long,
or when excessive noise is expected on the supply
lines. Minimize signal trace lengths to reduce stray
capacitance.
V rising: V = V x R1 x
1
R1
V falling
IN THR REF
IN
:
+++
⎛
⎝
⎜⎞
⎠
⎟
=−
+
⎛
⎝
⎜⎞
⎠
⎟
=−
1
2
1
34
1
34
RRR
VV RxV
RR
Hysteresis V V
THF THR CC
THR THF
R2 = 1
V
V
THR
REF xR R R R1
1
1
1
34
⎛
⎝
⎜⎞
⎠
⎟−−+
V rising: V = V x R1 x 1
R1
V falling
IN THR REF
IN
:
++
⎛
⎝
⎜⎞
⎠
⎟
=−
⎛
⎝
⎜⎞
⎠
⎟
=−
1
2
1
3
1
3
RR
VV RxV
R
Hysteresis V V
THF THR CC
THR THF
R2 = 1
V
V
R2 = 1
3.0V
1.2 x 12k
THR
REF
.
.
xR R R
kM
k
1
1
1
1
3
1
12
1
22
803
⎛
⎝
⎜⎞
⎠
⎟−−
⎛
⎝
⎜⎞
⎠
⎟−−
=
ΩΩ Ω
Ω
VEE
VCC OUT
R3
R2
R1 R4
VREF
VIN
VCC
MAX986
MAX990
MAX994
Figure 2. Additional Hysteresis (MAX986/MAX990/MAX994)
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
9
Zero-Crossing Detector
Figure 3 shows a zero-crossing detector application.
The MAX985’s inverting input is connected to ground,
and its noninverting input is connected to a 100mVP-P
signal source. As the signal at the noninverting input
crosses 0V, the comparator’s output changes state.
Logic-Level Translator
Figure 4 shows an application that converts 5V logic lev-
els to 3V logic levels. The MAX986 is powered by the 5V
supply voltage, and the pullup resistor for the MAX986’s
open-drain output is connected to the 3V supply voltage.
This configuration allows the full 5V logic swing without
creating overvoltage on the 3V logic inputs. For 3V to 5V
logic-level translation, simply connect the 3V supply to
VCC and the 5V supply to the pullup resistor.
UCSP Applications Information
For the latest application details on UCSP construction,
dimensions, tape carrier information, PCB techniques,
bump-pad layout, and recommended reflow tempera-
ture profile, as well as the latest information on reliability
testing results, refer to the Application Note:
UCSP—A
Wafer-Level Chip-Scale Package
on Maxim’s web site
at www.maxim-ic.com/ucsp.
MAX985
IN+
3
4
OUT 1
2
5
VCC
100mV
VCC
VEE
IN-
MAX986
IN-
100kΩ
100kΩ
4
3
RPULLUP
3V (5V)
LOGIC OUT
OUT 1
5
2
VCC
5V (3V)
3V (5V)
VEE
5V (3V) LOGIC IN
IN+
Figure 3. Zero-Crossing Detector Figure 4. Logic-Level Translator
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
10
Ordering Information (continued)Typical Application Circuit
MAX98_
MAX99_
IN+
*RPULLUP
THRESHOLD DETECTOR
*MAX986/MAX990/MAX994 ONLY.
VIN
OUT
VCC
VCC
VEE
VREF
IN-
PART PIN-PACKAGE TOP MARK
MAX985EUK+T 5 SOT23-5 ABYZ
MAX985ESA+ 8 SO —
MAX986EXK+T 5 SC70-5 ABL
MAX986EUK+T 5 SOT23-5 ABZA
MAX986ESA+ 8 SO —
MAX989EKA+T 8 SOT23-8 AADZ
MAX989EUA+T 8 µMAX-8 —
MAX989ESA+ 8 SO —
MAX990EKA+T 8 SOT23-8 AAEA
MAX990EUA+T 8 µMAX-8 —
MAX990ESA+ 8 SO —
MAX993EUD+ 14 TSSOP —
MAX993ESD+ 14 SO —
MAX994EUD+ 14 TSSOP —
MAX994ESD+ 14 SO —
Pin Configurations (continued)
14
13
12
11
10
9
8
1
2
3
4
5
6
7
OUTD
IND-
IND+
VEE
VCC
INA+
INA-
OUTA
MAX993
MAX994
INC+
INC-
OUTCOUTB
INB-
INB+
SO/TSSOP
TOP VIEW
OUT
N.C.
VEE
1
2
8
7
N.C.
VCC
IN-
IN+
N.C.
SO
3
4
6
5
MAX985
MAX986
INB-
INB+
VEE
1
2
8
7
VCC
OUTB
INA-
INA+
OUTA
SO/µMAX/SOT23
3
4
6
5
MAX989
MAX990
VCC
IN-
IN+
1
++++
5VEE
OUT
MAX985
MAX986
SOT23/SC70
2
34
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.
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
11
Package Information
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing per-
tains to the package regardless of RoHS status.
PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND
PATTERN NO.
6 UCSP B6+3 21-0097 —
5 SOT23 U5+1 21-0057 90-0174
5 SC70 X5+1 21-0076 90-0188
8 SO S8+2 21-0041 90-0096
8 SOT23 K8+5 21-0078 90-0176
8 µMAX U8+1 21-0036 90-0092
14 SO S14+1 21-0041 90-0112
14 TSSOP U14+1 21-0066 90-0113
MAX985/MAX986/MAX989/MAX990/MAX993/MAX994
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in
the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
12
_______________Maxim Integrated Products, Inc. 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
© 2012 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
Revision History
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
5 4/12 Replaced Figure 3, added lead-free compliant packaging info, updated package
information, updated Absolute Maximum Ratings, rearranged Pin Description table 1, 2, 6, 9, 10
