MAX986EXK-T [MAXIM]
Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators; 微功耗，低电压， SOT23封装，轨到轨输入/输出比较器
| 型号： | MAX986EXK-T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators |
| 文件： | 总13页 (文件大小：453K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1229; Rev 3; 9/02
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
General Description
____________________________Features
ꢀ 11µA Quiescent Supply Current
The MAX985/MAX986/MAX989/MAX990/MAX993/
MAX994 single/dual/quad micropower comparators
ꢀ 2.5V to 5.5V Single-Supply Operation
®
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 ±±.25V to ±2.ꢀ5V
dual supplies. They consume only ±±µA of supply cur-
rent while achieving a 300ns propagation delay.
ꢀ Common-Mode Input Voltage Range Extends
250mV Beyond the Rails
ꢀ 300ns Propagation Delay
ꢀ Push-Pull Output Stage Sinks and Sources
Input bias current is typically ±.0pA, and input offset
voltage is typically 0.5mV. Internal hysteresis ensures
clean output switching, even with slow-moving input
signals.
8mA Current (MAX985/MAX989/MAX993)
ꢀ Open-Drain Output Voltage Extends Beyond V
CC
(MAX986/MAX990/MAX994)
ꢀ Unique Output Stage Reduces Output Switching
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
Current, Minimizing Overall Power Consumption
ꢀ 80µA Supply Current at 1MHz Switching
Frequency
ꢀ No Phase Reversal for Overdriven Inputs
ꢀ Available in Space-Saving Packages:
UCSP (MAX985)
V
to 6V (max) above V . These open-drain versions
EE
CC
SOT23 (MAX985/MAX986/MAX989/MAX990)
µMAX (MAX989/MAX990)
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 SCꢀ0 packages and the dual MAX989/MAX990
are available in 8-pin SOT23 packages.
Ordering Information
PIN/BUMP-
PACKAGE
TOP
MARK
PART
TEMP RANGE
MAX985EBT-T*
-40°C to +85°C
-40°C to +85°C
6 UCSP-6
5 SC70-5
AAY
ABK
MAX985EXK-T
Selector Guide
*UCSP reliability is integrally linked to the user’s assembly meth-
ods, circuit board material, and environment. Refer to the UCSP
Reliability section of this data sheet for more information.
COMPARATORS
PER PACKAGE
OUTPUT
STAGE
PART
Ordering Information continued at end of data sheet.
Typical Application Circuit appears at end of data sheet.
MAX985
MAX986
MAX989
MAX990
MAX993
MAX994
1
1
2
2
4
4
Push-Pull
Open-Drain
Push-Pull
Pin Configurations
Open-Drain
Push-Pull
TOP VIEW
(BUMPS ON BOTTOM)
Open-Drain
IN+
B1
B2
B3
A1
A2
A3
V
EE
Applications
Threshold Detectors/
Discriminators
Ground/Supply-Sensing
Applications
IR Receivers
MAX985
IN-
OUT
Portable/Battery-
Powered Systems
Mobile Communications
Zero-Crossing Detectors
Window Comparators
Level Translators
N.C.
V
CC
UCSP
Digital Line Receivers
Pin Configurations continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
to V ) ...................................................6V
8-Pin SOT23 (derate 9.1mW/°C above +70°C).............727mW
8-Pin µMAX (derate 4.5mW/°C above +70°C)..............362mW
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C) ..........727mW
14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW
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
Bump Reflow Temperature (Note 1) ................................+235°C
CC
EE
IN_-, IN_+ to V
.......................................-0.3V to (V
+ 0.3V)
EE
CC
OUT_ to V
EE
MAX985/MAX989/MAX993 ....................-0.3V to (V
+ 0.3V)
CC
MAX986/MAX990/MAX994.....................................-0.3V to 6V
OUT_ Short-Circuit Duration to V or V ...........................10s
EE
CC
Continuous Power Dissipation (T = +70°C)
A
5-Pin SC70 (derate 3.1mW/°C above +70°C)...............247mW
5-Pin SOT23 (derate 7.10mW/°C above +70°C)...........571mW
6-Bump UCSP (derate 3.9mW/°C above +70°C)..........308mW
Note 1: This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device
can be exposed to during board-level solder attach and rework. This limit permits only the use of the solder profiles recom-
mended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and Convection Packaging
Reflow. Preheating is required. Hand or wave soldering is not allowed.
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
(V = 2.7V to 5.5V, V = 0V, V
= 0V, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
CC
EE
CM
A
A
PARAMETER
SYMBOL
CONDITIONS
Inferred from PSRR test
MIN
TYP
MAX
5.5
20
UNITS
Supply Voltage
V
CC
2.5
V
T
A
T
A
T
A
T
A
= +25°C
12
11
80
V
= 5V
CC
CC
= -40°C to +85°C
= +25°C
24
Supply Current per
Comparator
I
µA
CC
20
V
= 2.7V
= -40°C to +85°C
24
Power-Supply Rejection Ratio
PSRR
2.5V ≤ V
≤ 5.5V
55
dB
V
CC
V
EE
-
V
CC
+
T
A
= +25°C
Common-Mode Voltage
Range (Note 3)
0.25
0.25
V
CMR
T
A
= -40°C to +85°C
V
EE
V
CC
T
T
= +25°C
0.5
5
Input Offset Voltage
(Note 4)
A
Full common-mode
range
V
mV
mV
nA
OS
= -40°C to +85°C
7
A
Input Hysteresis
V
HYST
3
Input Bias Current
(Note 5)
I
0.001
10
B
Input Offset Current
Input Capacitance
I
0.5
1.0
80
pA
pF
dB
OS
C
IN
Common-Mode Rejection Ratio CMRR
52
Output Leakage Current
(MAX986/MAX990/
MAX994 only)
I
V
OUT
= high
1.0
µA
LEAK
V
V
= 5V
95
35
CC
Sourcing or sinking,
Output Short-Circuit Current
I
mA
SC
V
OUT
= V or V
EE CC
= 2.7V
CC
T
A
T
A
T
A
T
A
= +25°C
0.2
0.4
0.55
0.3
V
= 5V,
= 8mA
CC
I
SINK
= -40°C to +85°C
= +25°C
OUT Output Voltage Low
V
OL
V
0.15
V
CC
= 2.7V,
= 3.5mA
I
SINK
= -40°C to +85°C
0.4
2
_______________________________________________________________________________________
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
ELECTRICAL CHARACTERISTICS (continued)
(V = 2.7V to 5.5V, V = 0V, V
= 0V, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
CC
EE
CM
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
4.6
TYP
MAX
UNITS
T
A
T
A
T
A
T
A
= +25°C
4.85
V
= 5V,
CC
OUT Output Voltage High
(MAX985/MAX989/
MAX993 only)
I
= 8mA
SOURCE
= -40°C to +85°C
= +25°C
4.45
2.4
V
OH
V
2.55
V
CC
= 2.7V,
I
= 3.5mA
SOURCE
= -40°C to +85°C
2.3
C = 15pF
40
50
L
OUT Rise Time
(MAX985/MAX989/
MAX993 only)
t
V
= 5.0V
C = 50pF
L
ns
ns
RISE
CC
CC
C = 200pF
L
80
C = 15pF
L
40
OUT Fall Time
t
V
= 5.0V
C = 50pF
L
50
FALL
C = 200pF
L
80
10mV overdrive
100mV overdrive
450
300
MAX985/MAX989/
MAX993 only
t
C = 15pF
L
PD-
MAX986/MAX990/
MAX994 only,
10mV overdrive
100mV overdrive
450
300
Propagation Delay
Power-Up Time
ns
µs
R
= 5.1kΩ
PULLUP
10mV overdrive
100mV overdrive
450
300
20
MAX985/MAX989/
MAX993 only, C = 15pF
t
PD+
L
t
PU
Note 2: All device specifications are 100% production tested at T = +25°C. Limits over the extended temperature range are guar-
A
anteed by design.
Note 3: Inferred from the V test. Both or either inputs can be driven 0.3V beyond either supply rail without output phase reversal.
OS
Note 4:
Note 5:
V
is defined as the center of the hysteresis band at the input.
is defined as the average of the two input bias currents (I , I ).
B- B+
OS
I
B
_______________________________________________________________________________________
3
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
__________________________________________Typical Operating Characteristics
(V
= 5V, V
= 0V, T = +25°C, unless otherwise noted.)
CC
CM
A
SUPPLY CURRENT
vs. TEMPERATURE
OUTPUT LOW VOLTAGE
vs. OUTPUT SINK CURRENT
SUPPLY CURRENT vs.
OUTPUT TRANSITION FREQUENCY
18
10,000
1000
100
10
1000
100
V
> V
IN-
IN+
V
< V
IN+
IN-
17
16
15
14
13
12
11
10
9
V
CC
= 2.7V
V
= 5.0V
CC
V
= 5.0V
V
= 5.0V
CC
CC
10
1
V
= 2.7V
100
CC
V
= 2.7V
CC
8
1
-60 -40 -20
0
20 40 60 80 100
0.01
0.1
1
10
100
0.01
0.1
1
10
1000
TEMPERATURE (°C)
OUTPUT SINK CURRENT (mA)
OUTPUT TRANSITION FREQUENCY (kHz)
OUTPUT HIGH VOLTAGE
vs. OUTPUT SOURCE CURRENT
OUTPUT SHORT-CIRCUIT
CURRENT vs. TEMPERATURE
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
10,000
1000
120
110
100
90
1.1
0.9
V
> V
IN+
IN-
V
= 5.0V
CC
0.7
80
100
10
1
V
= 2.7V
CC
70
0.5
60
50
V
= 5.0V
CC
0.3
40
30
20
10
0
0.1
V
= 2.7V
CC
-0.1
-0.3
0.1
0.1
0.01
1
10
100
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
OUTPUT SOURCE CURRENT (mA)
TEMPERATURE (°C)
TEMPERATURE (°C)
PROPAGATION DELAY
PROPAGATION DELAY
vs. CAPACITIVE LOAD (V = 5V)
vs. CAPACITIVE LOAD (V = 3V)
CC
CC
530
510
490
600
550
500
450
400
350
V
= 50mV
OD
V
= 50mV
OD
470
450
430
410
TO V
FINAL VALUE
= 50% OF
OUT
TO V
= 50% OF
OUT
FINAL VALUE
TO V
FINAL VALUE
= 10% OF
OUT
TO V
= 10% OF
OUT
FINAL VALUE
390
370
350
400
CAPACITIVE LOAD (pF)
400
0
200
600
800
1000
0
200
600
800
1000
CAPACITIVE LOAD (pF)
4
_______________________________________________________________________________________
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
____________________________Typical Operating Characteristics (continued)
(V
CC
= 5V, V
= 0V, T = +25°C, unless otherwise noted.)
CM
A
PROPAGATION DELAY
vs. TEMPERATURE
PROPAGATION DELAY
vs. INPUT OVERDRIVE
450
900
800
700
V
= 50mV
OD
440
430
420
600
500
400
300
200
100
0
TO V
= 50% POINT
OUT
OF FINAL VALUE
V
= 2.7V
CC
410
400
390
380
TO V
= 10% POINT
OUT
OF FINAL VALUE
V
CC
= 5.0V
-40 -20
0
20
40
60
80 100
0
40
80
120
160
200
TEMPERATURE (°C)
INPUT OVERDRIVE (mV)
MAX985/MAX989/MAX993
MAX985/MAX989/MAX993
PROPAGATION DELAY (t
)
MAX985-12
PD-
PROPAGATION DELAY (t
)
PD+
SWITCHING CURRENT, OUT RISING
MAX985-11
MAX985-13
50mV/
div
IN+
50mV/
div
IN+
50mV/
div
IN+
2V/div
OUT
2V/div
OUT
2V/div
OUT
I
1mA/div
CC
V
= 50mV
OD
V
= 50mV
OD
V
= 50mV
OD
100ns/div
100ns/div
100ns/div
1MHz RESPONSE
SWITCHING CURRENT, OUT FALLING
POWER-UP DELAY
MAX985-15
MAX985-14
MAX985-16
IN+
OUT
IN+
50mV/
div
V
CC
50mV/
div
2V/div
I
CC
2V/div
OUT
OUT
V
IN-
V
IN+
= 50mV
= 0V
1mA/div
V
= 50mV
OD
V
= 50mV
OD
200ns/div
100ns/div
5µs/div
_______________________________________________________________________________________
5
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
Pin Description
PIN
MAX985
MAX986
MAX989
MAX990
MAX993
MAX994
NAME
FUNCTION
SOT23/
SC70
SO/µMAX/
SOT23
SO/
TSSOP
SO
UCSP*
1
6
7
A2
A3
B1
B2
A1
—
—
—
—
—
—
—
—
—
—
—
—
B3
—
8
—
4
OUT
Comparator Output
2
V
CC
Positive Supply Voltage
3
3
—
—
4
—
—
11
1
IN+
IN-
Comparator Noninverting Input
Comparator Inverting Input
Negative Supply Voltage
4
2
5
4
V
EE
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1, 5, 8
1
OUTA
INA-
Comparator A Output
2
2
Comparator A Inverting Input
Comparator A Noninverting Input
Comparator B Noninverting Input
Comparator B Inverting Input
Comparator B Output
3
3
INA+
INB+
INB-
5
5
6
6
7
7
OUTB
OUTC
INC-
—
—
—
—
—
—
—
8
Comparator C Output
9
Comparator C Inverting Input
Comparator C Noninverting Input
Comparator D Noninverting Input
Comparator D Inverting Input
Comparator D Output
10
12
13
14
—
INC+
IND+
IND-
OUTD
N.C.
—
No Connection. Not internally connected.
*MAX985 only
6
_______________________________________________________________________________________
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
_______________Detailed Description
V
CC
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.
R3
R1
V
IN
V
CC
OUT
R2
V
EE
MAX985
MAX989
MAX993
V
REF
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-
Figure 1. Additional Hysteresis (MAX985/MAX989/MAX993)
drain output stage that can be pulled beyond V
to an
CC
absolute maximum of 6V above V
.
EE
__________Applications Information
Input Stage Circuitry
The devices’ input common-mode range extends from
Additional Hysteresis
-0.25V to (V
+ 0.25V). These comparators may oper-
CC
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.
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.
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-
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.
rent through R3 at the trip point is (V
- V
) /
OUT
REF
R3. Considering the two possible output states in
solving for R3 yields two formulas: R3 = V / 1µA
REF
or R3 = (V
- V ) / 1µA. Use the smaller of the
REF
CC
two resulting resistor values. For example, if V
=
REF
1.2V and V
= 5V, then the two R3 resistor values
CC
are 1.2MΩ and 3.8MΩ. Choose a 1.2MΩ standard
value for R3.
2) Choose the hysteresis band required (V ). For this
HB
example, choose 50mV.
3) Calculate R1 according to the following equation:
R1 = R3 x (V / V
)
HB
CC
For this example, insert the values R1 = 1.2MΩ x
(50mV / 5V) = 12kΩ.
4) Choose the trip point for V rising (V
; V
is
THF
IN
THR
the trip point for V falling). This is the threshold
IN
voltage at which the comparator switches its output
from low to high as V rises above the trip point. For
IN
this example, choose 3V.
_______________________________________________________________________________________
7
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
5) Calculate R2 as follows. For this example, choose an
Use the following procedure to calculate resistor
values:
8.2kΩ standard value:
1
1) Select R3 according to the formulas R3 = V
/
REF
R2 =
500µA or R3 = (V
- V ) / 500µA - R4. Use the
REF
CC
V
1
R1
1
R3
THR
x R1
−
−
smaller of the two resulting resistor values.
V
REF
2) Choose the hysteresis band required (V ). For this
HB
1
example, choose 50mV.
R2 =
= 8.03kΩ
3.0V
1
1
3) Calculate R1 according to the following equation:
−
−
1.2 x 12kΩ
12kΩ
2.2MΩ
R1 = (R3 + R4) x (V / V
)
HB
CC
6) Verify trip voltages and hysteresis as follows:
4) Choose the trip point for V rising (V
; V
is
THF
IN
THR
the trip point for V falling). This is the threshold
IN
voltage at which the comparator switches its output
from low to high as V rises above the trip point.
IN
1
R1
1
R2
1
V
rising: V
= V
x R1 x
+
+
IN
THR
REF
R3
5) Calculate R2 as follows:
R1 x V
CC
1
V
falling: V
= V
−
IN
THF
THR
R2 =
R3
V
1
R1
1
THR
x R1
−
−
Hysteresis = V
− V
THF
THR
V
R3 + R4
REF
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.
V
rising: V
= V x R1 x
REF
IN
THR
1
R1
1
1
+
+
R2
R3 + R4
R1 x V
R3 + R4
CC
V
falling: V
= V
−
IN
THF
THR
Hysteresis = V
− V
THF
THR
V
CC
R3
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.
R1
R4
V
IN
V
CC
EE
OUT
R2
V
MAX986
MAX990
MAX994
V
REF
Figure 2. Additional Hysteresis (MAX986/MAX990/MAX994)
8
_______________________________________________________________________________________
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
Zero-Crossing Detector
UCSP Reliability
Figure 3 shows a zero-crossing detector application.
The chip-scale package (UCSP) represents a unique
packaging form factor that may not perform equally to a
packaged product through traditional mechanical relia-
bility tests. UCSP reliability is integrally linked to the
user’s assembly methods, circuit board material, and
usage environment. The user should closely review
these areas when considering use of a UCSP package.
Performance through Operating Life Test and Moisture
Resistance remains uncompromised as it is primarily
determined by the wafer-fabrication process.
The MAX985’s inverting input is connected to ground,
and its noninverting input is connected to a 100mV
P-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
Mechanical stress performance is a greater consideration
for a UCSP package. UCSPs are attached through direct
solder contact to the user’s PC board, foregoing the
inherent stress relief of a packaged product lead frame.
Solder joint contact integrity must be considered.
Information on Maxim’s qualification plan, test data, and
recommendations are detailed in the UCSP application
note, which can be found on Maxim’s website at
www.maxim-ic.com.
V
CC
and the 5V supply to the pullup resistor.
UCSP Package Consideration
For general UCSP package information and PC layout
considerations, please refer to Maxim Application
Note,“Wafer-Level Chip-Scale Package.”
5V (3V)
V
V
CC
3V (5V)
2
2
100kΩ
V
CC
R
CC
PULLUP
100mV
4
3
IN-
IN+
4
3
IN+
IN-
3V (5V)
LOGIC OUT
1
OUT
1
OUT
100kΩ
MAX986
MAX985
V
EE
V
EE
5
5
5V (3V) LOGIC IN
Figure 3. Zero-Crossing Detector
Figure 4. Logic-Level Translator
_______________________________________________________________________________________
9
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
Typical Application Circuit
Ordering Information (continued)
V
PIN/BUMP-
PACKAGE
TOP
MARK
CC
PART
TEMP RANGE
V
IN
MAX985EUK-T
MAX985ESA
MAX986EXK-T
MAX986EUK-T
MAX986ESA
MAX989EKA-T
MAX989EUA
MAX989ESA
MAX990EKA-T
MAX990EUA
MAX990ESA
MAX993EUD
MAX993ESD
MAX994EUD
MAX994ESD
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
5 SOT23-5
8 SO
ABYZ
—
V
CC
*R
PULLUP
5 SC70-5
5 SOT23-5
8 SO
ABL
ABZA
—
IN+
IN-
OUT
8 SOT23-8
8 µMAX
8 SO
AADZ
—
MAX98_
MAX99_
—
V
8 SOT23-8
8 µMAX
8 SO
AAEA
—
EE
V
REF
*MAX986/MAX990/MAX994 ONLY.
—
14 TSSOP
14 SO
—
—
THRESHOLD DETECTOR
14 TSSOP
14 SO
—
—
Pin Configurations (continued)
TOP VIEW
OUTA
INA-
1
2
3
4
5
6
7
14 OUTD
13 IND-
12 IND+
1
2
3
5
4
V
EE
OUT
N.C.
IN-
1
2
3
4
8
7
6
5
N.C.
OUTA
INA-
1
2
3
4
8
7
6
5
V
CC
V
OUTB
INB-
CC
MAX985
MAX986
MAX985
MAX986
MAX989
MAX990
INA+
V
CC
OUT
N.C.
IN+
INA+
V
CC
MAX993
MAX994
11
V
EE
V
EE
V
INB+
EE
INB+
INB-
10 INC+
IN+
IN-
9
8
INC-
SO
SO/µMAX/SOT23
SOT23/SC70
OUTB
OUTC
SO/TSSOP
10 ______________________________________________________________________________________
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
______________________________________________________________________________________ 11
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
12 ______________________________________________________________________________________
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
4X S
8
8
MILLIMETERS
INCHES
DIM MIN
MAX
MAX
MIN
-
-
0.043
0.006
0.037
0.014
0.007
0.120
1.10
0.15
0.95
0.36
0.18
3.05
A
0.002
0.030
0.010
0.005
0.116
0.05
0.75
0.25
0.13
2.95
A1
A2
b
E
H
ÿ 0.50±0.1
c
D
e
0.0256 BSC
0.65 BSC
0.6±0.1
E
H
0.116
0.188
0.016
0∞
0.120
2.95
4.78
0.41
0∞
3.05
5.03
0.66
6∞
0.198
0.026
6∞
L
1
1
α
S
0.6±0.1
0.0207 BSC
0.5250 BSC
D
BOTTOM VIEW
TOP VIEW
A1
A2
A
c
α
e
L
b
SIDE VIEW
FRONT VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 8L uMAX/uSOP
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0036
J
1
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600___________________ 13
© 2002 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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