MAX9018BEKA-T [MAXIM]
SOT23, Dual, Precision, 1.8V, Nanopower Comparators With/Without Reference; SOT23封装，双路，高精度， 1.8V ，纳安级功耗比较器，带/不带基准
| 型号： | MAX9018BEKA-T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | SOT23, Dual, Precision, 1.8V, Nanopower Comparators With/Without Reference |
| 文件： | 总16页 (文件大小：445K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-2874; Rev 1; 7/03
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
General Description
Features
The single MAX9015/MAX9016 and dual MAX9017–
MAX9020 nanopower comparators in space-saving
SOT23 packages feature Beyond-the-Rails™ inputs
and are guaranteed to operate down to 1.8V. The A-
grade packages feature an on-board 1.236V 1ꢀ ref-
erence, while the B-grade packages feature a 1.24V
1.75ꢀ reference. An ultra-low supply current of 0.85ꢁA
(MAX9019/MAX9020), 1ꢁA (MAX9015/MAX9016), or
1.2ꢁA (MAX9017/MAX9018) makes the MAX9015–
MAX9020 family of comparators ideal for all 2-cell bat-
tery monitoring/management applications.
ꢀ Ultra-Low Total Supply Current
0.85µA (MAX9019/MAX9020)
1.0µA (MAX9015A/MAX9016A)
1.2µA (MAX9017/MAX9018)
ꢀ Guaranteed Operation Down to 1.8V
ꢀ Precision VOS < 5mV (max)
ꢀ Internal 1.236V 1ꢀ ꢁeꢂerence (A Grade)
ꢀ Input Voltage ꢁange Extends 200mV
Beyond-the-ꢁails
ꢀ CMOS Push-Pull Output with 6mA Driꢃe
The unique design of the MAX9015–MAX9020 output
stage limits supply-current surges while switching,
which virtually eliminates the supply glitches typical of
many other comparators. This design also minimizes
overall power consumption under dynamic conditions.
The MAX9015/MAX9017/MAX9019 have a push-pull
output stage that sinks and sources current. Large
Capability (MAX9015/MAX9017/MAX9019)
ꢀ Open-Drain Output Versions Aꢃailable
(MAX9016/MAX9018/MAX9020)
ꢀ Crowbar-Current-Free Switching
ꢀ Internal 4mV Hysteresis ꢂor Clean Switching
ꢀ No Phase ꢁeꢃersal ꢂor Oꢃerdriꢃen Inputs
®
internal output drivers allow Rail-to-Rail output swing
with loads up to 6mA. The MAX9016/MAX9018/MAX9020
have an open-drain output stage that makes them suit-
able for mixed-voltage system design. All devices are
available in the ultra-small 8-pin SOT23 package.
ꢀ Dual Versions in Space-Saꢃing 8-Pin SOT23
Package
Ordering Information
Refer to the MAX9117–MAX9120 data sheet for similar
single comparators with or without reference in a tiny
SC70 package.
PIN-
TOP
PAꢁT
TEMP ꢁANGE
PACKAGE
MAꢁK
MAX9015AEKA-T -40°C to +85°C 8 SOT23-8
MAX9016AEKA-T -40°C to +85°C 8 SOT23-8
MAX9017AEKA-T -40°C to +85°C 8 SOT23-8
MAX9017BEKA-T -40°C to +85°C 8 SOT23-8
AEIW
AEIX
AEIQ
AEIS
Applications
Window Detectors
2-Cell Battery
Monitoring/Management
Sensing at Ground or
Supply Line
Ordering Information continued at end of data sheet.
Ultra-Low Power Systems
Mobile Communications
Notebooks and PDAs
Pin Configurations appear at end of data sheet.
Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Telemetry and Remote
Systems
Medical Instruments
Threshold Detectors/
Discriminators
Selector Guide
PAꢁT
MAX9015A
MAX9016A
MAX9017A
MAX9017B
MAX9018A
MAX9018B
MAX9019
COMPAꢁATOꢁ(S) INTEꢁNAL ꢁEFEꢁENCE (V)
OUTPUT TYPE
Push-pull
SUPPLY CUꢁꢁENT (µA)
1
1
2
2
2
2
2
2
1.236 1ꢀ
1.236 1ꢀ
1.236 1ꢀ
1.240 1.75ꢀ
1.236 1ꢀ
1.240 1.75ꢀ
—
1
Open drain
Push-pull
1
1.2
1.2
1.2
1.2
0.85
0.85
Push-pull
Open drain
Open drain
Push-pull
MAX9020
—
Open drain
________________________________________________________________ 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.
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
ABSOLUTE MAXIMUM ꢁATINGS
Supply Voltage (V
to V )....................................................6V
Output Short-Circuit Duration (REF, OUT_, REF/INA-) ...........10s
CC
EE
IN+, IN-, INA+, INB+, INA-, INB-,
Continuous Power Dissipation (T = +70°C)
A
REF/INA-, REF..................................(V - 0.3V) to (V
Output Voltage (OUT_)
+ 0.3V)
8-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
EE
CC
MAX9015A, MAX9017_, MAX9019....(V - 0.3V) to (V + 0.3V)
EE
CC
MAX9016A, MAX9018_, MAX9020...................(V - 0.3V) to +6V
EE
Output Current (REF, OUT_, REF/INA-)............................ 50mA
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.
ELECTꢁICAL CHAꢁACTEꢁISTICS—MAX9015–MAX9018 (Single and Duals with ꢁEF)
(V = 5V, V = 0V, V = V
, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
REF A A
EE
IN
CC
-
PARAMETER
SYMBOL
CONDITIONS
Inferred from the PSRR test
MIN
TYP
MAX
5.5
UNITS
Supply Voltage Range
V
1.8
V
CC
V
V
= 1.8V, T = +25°C
1.0
1.1
1.5
CC
CC
A
= 5.0V, T = +25°C
1.7
A
MAX9015A/
MAX9016A
V
= 5.0V,
CC
2.0
T
A
= T to T
MIN MAX
Supply Current
I
µA
CC
V
V
V
= 1.8V, T = +25°C
1.2
1.4
1.9
2.3
CC
CC
A
= 5.0V, T = +25°C
MAX9017_/
MAX9018_
A
= 5.0V,
CC
2.8
T
A
= T to T
MIN MAX
Input Common-Mode
Voltage Range
(MAX9015A/MAX9016A)
Inferred from the output swing test,
- 0.2V < V < V + 0.2V
V
V
V
V
- 0.2
V
V
+ 0.2
V
V
CM
EE
EE
CC
CC
V
EE
CM
CC
IN+ Voltage Range
(MAX9017_/MAX9018_)
Inferred from the output swing test
- 0.2
+ 0.2
IN+
T
T
= +25°C
0.15
5
A
V
V
- 0.2V < V
+ 0.2V (Note 2)
<
CM
EE
Input Offset Voltage
V
V
mV
mV
nA
OS
HB
CC
= T
to T
10
A
MIN
MAX
Input-Referred Hysteresis
V
- 0.2V < V
< V + 0.2V (Note 3)
CC
4
EE
CM
T
= +25°C
0.15
1
2
A
A
Input Bias Current (IN+,
IN-, INA+, INB+, INB-)
I
B
T
= T
to T
MAX
MIN
Power-Supply Rejection
Ratio
PSRR
V
= 1.8V to 5.5V
0.1
1
mV/V
mV
CC
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
= +25°C
100
200
300
350
450
200
300
350
450
V
= 1.8V,
CC
I
= 1mA
SOURCE
= T
to T
MIN
MAX
MAX
MAX
MAX
Output Voltage Swing High
(MAX9015A/MAX9017_)
V
- V
OH
CC
= +25°C
= T to T
250
105
285
V
= 5.0V,
CC
I
= 6mA
SOURCE
MIN
= +25°C
= T to T
V
= 1.8V,
= 1mA
CC
I
SINK
MIN
Output Voltage Swing Low
(MAX9015A/MAX9017_)
V
mV
OL
= +25°C
= T to T
V
= 5.0V,
= 6mA
CC
I
SINK
MIN
2
_______________________________________________________________________________________
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
ELECTRICAL CHARACTERISTICS—MAX9015–MAX9018 (Single and Duals with REF)
(continued)
(V = 5V, V = 0V, V = V
, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
REF A A
EE
IN
CC
-
PARAMETER
SYMBOL
CONDITIONS
= 5.5V, V = 5.5V
OUT
MIN
TYP
MAX
UNITS
Output Leakage Current
(MAX9016A/MAX9018_)
I
V
0.001
1
µA
LEAK
CC
Sourcing, V
=
OUT
V
V
= 1.8V
= 5.0V
3
CC
CC
V
EE
(MAX9015A/
35
MAX9017_ only)
Output Short-Circuit Current
I
mA
µs
SC
V
V
= 1.8V
= 5.0V
3
33
7
CC
CC
Sinking,
V
V
V
= V
CC
OUT
= 1.8V
= 5.0V
CC
CC
High-to-Low Propagation
Delay (Note 4)
t
PD-
6
MAX9015A/MAX9017_
MAX9016A/MAX9018_,
11
V
V
= 1.8V
= 5.0V
CC
CC
12
28
31
R
= 100kΩ to V
CC
PULLUP
Low-to-High Propagation
Delay (Note 4)
t
µs
PD+
MAX9015A/MAX9017_
MAX9016A/MAX9018_,
R
= 100kΩ to V
CC
PULLUP
Rise Time
t
C = 15pF (MAX9015A/MAX9017_)
1.6
0.2
µs
µs
RISE
L
Fall Time
t
C = 15pF
L
FALL
Power-Up Time
t
1.2
ms
ON
T
A
T
A
T
A
T
A
= +25°C, 1.0ꢀ
1.224
1.205
1.218
1.184
1.236
1.248
1.267
1.262
1.296
MAX901_A
MAX901_B
= T
to T
, 2.5ꢀ
MIN
MAX
Reference Voltage
V
V
REF
= +25°C, 1.75ꢀ
= T to T , 4.5ꢀ
1.240
MIN
MAX
Reference Voltage
Temperature Coefficient
TC
40
ppm/°C
REF
BW = 10Hz to 1kHz, C
BW = 10Hz to 6kHz, C
= 1nF
= 1nF
29
60
REF
Reference Output Voltage
Noise
E
µV
RMS
N
REF
∆V
∆V
/
/
REF
Reference Line Regulation
Reference Load Regulation
1.8V ≤ V
≤ 5.5V
0.5
mV/V
CC
CC
∆V
REF
I
= 0 to 100nA
0.03
mV/nA
OUT
∆I
OUT
_______________________________________________________________________________________
3
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
ELECTRICAL CHARACTERISTICS—MAX9019/MAX9020 (Duals without REF)
(V
= 5V, V = 0V, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
EE A A
CC
PARAMETER
SYMBOL
CONDITIONS
Inferred from the PSRR test
MIN
TYP
MAX
5.5
UNITS
Supply Voltage Range
V
1.8
V
CC
V
V
= 1.8V, T = +25°C
0.85
1.1
1.50
1.70
CC
CC
A
= 5.0V, T = +25°C
A
MAX9019/
MAX9020
Supply Current
I
µA
V
CC
V
= 5.0V,
CC
2.0
T
A
= T
to T
MIN
MAX
Input Common-Mode
Voltage Range
Inferred from the output swing test,
V
V
- 0.2
V
+ 0.2
CC
CM
EE
V
- 0.2V < V
< V
+ 0.2V
EE
CM
CC
T
= +25°C
1
5
A
A
V
V
- 0.2V < V
<
EE
CM
Input Offset Voltage
V
V
mV
mV
OS
HB
+ 0.2V (Note 2)
CC
T
= T
to T
10
MIN
MAX
Input-Referred Hysteresis
V
- 0.2V < V
< V
+ 0.2V (Note 3)
4
EE
CM
CC
T
A
T
A
= +25°C
0.15
1
Input Bias Current
(INA-, INA+, INB+, INB-)
I
B
nA
= T
to T
2
MIN
MAX
Power-Supply Rejection Ratio
PSRR
V
= 1.8V to 5.5V
0.1
55
1
mV/V
CC
T
T
T
T
T
T
T
T
= +25°C
200
300
350
450
200
300
350
450
A
A
A
A
A
A
A
A
V
= 1.8V,
CC
I
= 1mA
SOURCE
= T
to T
Output Voltage Swing High
(MAX9019 Only)
MIN
MAX
MAX
MAX
MAX
V
- V
OH
mV
CC
= +25°C
= T to T
190
55
V
I
= 5.0V,
CC
= 6mA
SOURCE
MIN
= +25°C
= T to T
V
= 1.8V,
= 1mA
CC
I
SINK
MIN
Output Voltage Swing Low
V
mV
µA
mA
µs
OL
= +25°C
= T to T
190
V
= 5.0V,
= 6mA
CC
I
SINK
MIN
Output Leakage Current
(MAX9020 Only)
I
V
= 5.5V, V = 5.5V
OUT
0.001
1
LEAK
CC
V
V
V
V
= 1.8V
= 5.0V
= 1.8V
= 5.0V
3
35
3
CC
CC
CC
CC
Sourcing, V
V
=
OUT
(MAX9019 only)
EE
Output Short-Circuit Current
I
SC
Sinking, V
= V
CC
OUT
33
7
V
V
= 1.8V
CC
CC
High-to-Low Propagation
Delay (Note 4)
t
PD-
= 5.0V
6
MAX9019
11
V
V
= 1.8V
CC
CC
MAX9020, R
=
=
PULLUP
12
28
31
100kΩ to V
CC
Low-to-High Propagation
Delay (Note 4)
t
µs
PD+
MAX9019
= 5.0V
MAX9020, R
100kΩ to V
PULLUP
CC
4
_______________________________________________________________________________________
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
ELECTRICAL CHARACTERISTICS—MAX9019/MAX9020 (Duals without REF) (continued)
(V
= 5V, V = 0V, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
EE A A
CC
PARAMETER
SYMBOL
CONDITIONS
C = 15pF (MAX9019 only)
MIN
TYP
1.6
MAX
UNITS
µs
Rise Time
t
RISE
L
Fall Time
t
C = 15pF
L
0.2
µs
FALL
Power-Up Time
t
1.2
ms
ON
Note 1: All devices are 100ꢀ tested at T = +25°C. Specifications over temperature (T = T
to T
) are guaranteed by design,
MAX
A
A
MIN
not production tested.
Note 2: V is defined as the center of the hysteresis band at the input.
OS
Note 3: The hysteresis-related trip points are defined as the edges of the hysteresis band, measured with respect to the center of
the band (i.e., V ) (Figure 1).
OS
Note 4: Specified with an input overdrive (V
) of 100mV, and a load capacitance of C = 15pF. V
is defined
OVERDRIVE
OVERDRIVE
L
above and beyond the offset voltage and hysteresis of the comparator input.
Typical Operating Characteristics
(V
= 5V, V = 0V, C = 15pF, V
= 100mV, T = +25°C, unless otherwise noted.)
CC
EE
L
OVERDRIVE A
MAX9015/MAX9016
SUPPLY CURRENT
vs. SUPPLY VOLTAGE AND TEMPERATURE
MAX9017/MAX9018
SUPPLY CURRENT
vs. SUPPLY VOLTAGE AND TEMPERATURE
MAX9019/MAX9020
SUPPLY CURRENT
vs. SUPPLY VOLTAGE AND TEMPERATURE
1.6
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
T
A
= +85°C
T
A
= +85°C
T
= +85°C
A
T
A
= +25°C
T
A
= +25°C
T
= +25°C
= -40°C
A
T
A
T
A
= -40°C
T
= -40°C
A
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
MAX9015/MAX9016
SUPPLY CURRENT vs. TEMPERATURE
MAX9017/MAX9018
SUPPLY CURRENT vs. TEMPERATURE
MAX9019/MAX9020
SUPPLY CURRENT vs. TEMPERATURE
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
V
= 5V
CC
V
CC
= 5V
V
= 5V
CC
V
CC
= 3V
V
CC
= 3V
V
CC
= 3V
V
= 1.8V
CC
V
CC
= 1.8V
V
CC
= 1.8V
35
-40
-15
10
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
_______________________________________________________________________________________
5
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
Typical Operating Characteristics (continued)
(V
= 5V, V = 0V, C = 15pF, V
= 100mV, T = +25°C, unless otherwise noted.)
CC
EE
L
OVERDRIVE
A
MAX9015/MAX9016
SUPPLY CURRENT
vs. OUTPUT TRANSITION FREQUENCY
MAX9017/MAX9018
SUPPLY CURRENT
vs. OUTPUT TRANSITION FREQUENCY
MAX9019/MAX9020
SUPPLY CURRENT
vs. OUTPUT TRANSITION FREQUENCY
50
45
40
35
30
25
20
15
35
30
25
20
50
45
40
35
30
25
20
15
10
5
V
CC
= 1.8V
V
CC
= 1.8V
V
CC
= 1.8V
15
10
5
V
CC
= 3V
V
CC
= 3V
V
CC
= 5V
V
CC
= 5V
V
CC
= 5V
V
CC
= 3V
10
5
0
0
0
1
10
100
1k
10k
100k
1
10
100
1k
10k
100k
1
10
100
1k
10k
100k
OUTPUT TRANSITION FREQUENCY (Hz)
OUTPUT TRANSITION FREQUENCY (Hz)
OUTPUT TRANSITION FREQUENCY (Hz)
OUTPUT VOLTAGE LOW
vs. SINK CURRENT
OUTPUT VOLTAGE LOW
vs. SINK CURRENT AND TEMPERATURE
OUTPUT VOLTAGE HIGH
vs. SOURCE CURRENT
750
700
650
600
550
500
450
400
350
300
250
200
150
100
50
600
500
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
V
CC
= 3V
V
CC
= 3V
T
A
= +25°C
V
= 1.8V
CC
400
300
200
100
0
V
= 1.8V
CC
T
= +85°C
A
V
CC
= 5V
V
CC
= 5V
T
A
= -40°C
0
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
SINK CURRENT (mA)
SINK CURRENT (mA)
SOURCE CURRENT (mA)
OUTPUT VOLTAGE HIGH
vs. SOURCE CURRENT AND TEMPERATURE
SHORT-CIRCUIT TO V (SINK CURRENT)
CC
SHORT-CIRCUIT TO GND
(SOURCE CURRENT) vs.TEMPERATURE
vs. TEMPERATURE
0.6
0.5
0.4
0.3
0.2
0.1
0
40
35
30
25
20
15
10
5
50
45
40
35
30
25
20
15
10
5
V
CC
= 5V
V
CC
= 5V
T
A
= +25°C
T
A
= +85°C
V
CC
= 3V
V
CC
= 3V
T
A
= -40°C
V
CC
= 1.8V
V
CC
= 1.8V
35
0
0
0
1
2
3
4
5
6
7
8
9
10
-40
-15
10
60
85
-40
-15
10
35
60
85
SOURCE CURRENT (mA)
TEMPERATURE (°C)
TEMPERATURE (°C)
6
_______________________________________________________________________________________
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
Typical Operating Characteristics (continued)
(V
= 5V, V = 0V, C = 15pF, V
= 100mV, T = +25°C, unless otherwise noted.)
CC
EE
L
OVERDRIVE
A
INPUT OFFSET VOLTAGE DISTRIBUTION
OFFSET VOLTAGE vs. TEMPERATURE
REFERENCE VOLTAGE DISTRIBUTION
8
7
6
5
4
3
2
1
0
2.0
30
25
20
15
10
5
A GRADE
1.6
1.2
0.8
V
CC
= 1.8V
0.4
0
V
CC
= 5V
-0.4
-0.8
-1.2
-1.6
-2.0
0
-1.5 -1.2 -0.9 -0.6 -0.3
V
0
0.3 0.6 0.9 1.2 1.5
-40
-15
10
35
60
85
1.232 1.234 1.236 1.238 1.240
(mV)
TEMPERATURE (°C)
V
REF
(V)
OS
HYSTERESIS VOLTAGE
vs. TEMPERATURE
REFERENCE VOLTAGE
vs. TEMPERATURE
REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.240
1.238
1.236
1.234
1.232
1.230
1.240
1.239
1.238
1.237
1.236
1.235
1.234
A GRADE
V
CC
= 1.8V
V
CC
= 3V
V
CC
= 5V
-40
-15
10
35
60
85
-40
-15
10
35
60
85
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
REFERENCE VOLTAGE vs. REFERENCE
SINK CURRENT AND TEMPERATURE
REFERENCE VOLTAGE
vs. REFERENCE SOURCE CURRENT
REFERENCE VOLTAGE
vs. REFERENCE SINK CURRENT
1.255
1.250
1.245
1.248
1.246
1.244
1.242
V
CC
= 3V
T
A
= +85°C
1.238
1.235
1.232
1.229
1.226
V
= 1.8V
= 3V
CC
V
= 1.8V
CC
CC
T
A
= +25°C
1.240
1.235
1.230
1.225
1.240
1.238
1.236
1.234
1.232
V
V
= 5V
CC
CC
V
= 5V
CC
V
= 3V
80
T
A
= -40°C
0
40
80
120
160
200
0
40
80
120
160
200
0
40
120
160
200
REFERENCE SINK CURRENT (nA)
REFERENCE SOURCE CURRENT (nA)
REFERENCE SINK CURRENT (nA)
_______________________________________________________________________________________
7
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
Typical Operating Characteristics (continued)
(V
= 5V, V = 0V, C = 15pF, V
= 100mV, T = +25°C, unless otherwise noted.)
CC
EE
L
OVERDRIVE A
INPUT BIAS CURRENT
vs. INPUT BIAS VOLTAGE
PROPAGATION DELAY (t
vs. TEMPERATURE
)
PROPAGATION DELAY (t
vs. TEMPERATURE
)
PD+
PD-
1.000
16
14
12
10
50
40
30
20
10
0
IN+ = 2.5V
0.600
0.200
V
= 5V
= 3V
CC
V
= 1.8V
= 3V
CC
8
6
4
2
0
V
CC
-0.200
-0.600
-1.000
V
CC
V
= 5V
CC
V
CC
= 1.8V
-0.5
0.5
1.5
2.5
3.5
4.5
5.5
-40
-15
10
35
60
85
-40
-15
10
35
60
85
INPUT BIAS VOLTAGE (IN-) (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
PROPAGATION DELAY (t
vs. INPUT OVERDRIVE
)
PROPAGATION DELAY (t
vs. CAPACITIVE LOAD
)
PROPAGATION DELAY (t
vs. CAPACITIVE LOAD
)
PD+
PD-
PD-
180
160
140
200
50
40
30
20
10
0
V
= 1.8V
= 3V
CC
CC
CC
V
CC
= 1.8V
180
160
140
120
100
80
V
V
V
CC
= 3V
120
100
80
= 5V
V
CC
= 1.8V
= 3V
V
CC
= 5V
60
V
CC
= 5V
60
40
20
0
40
20
V
CC
0
0.01
0.1
1
10
100
1000
0.01
0.1
1
10
100
1000
0
10
20
30
40
50
CAPACITIVE LOAD (nF)
CAPACITIVE LOAD (nF)
INPUT OVERDRIVE (mV)
PROPAGATION DELAY (t
vs. INPUT OVERDRIVE
)
PROPAGATION DELAY (t
vs. PULLUP RESISTANCE
)
PD-
PD+
PROPAGATION DELAY (t
vs. PULLUP RESISTANCE
)
PD+
10
200
40
V
= 1.8V
CC
35
30
25
V
= 5V
= 3V
CC
9
8
7
6
5
4
160
120
80
V
= 5V
= 3V
CC
V
CC
= 3V
V
CC
V
CC
20
15
10
5
V
= 5V
CC
V
CC
= 1.8V
40
V
= 1.8V
CC
0
0
10k
100k
1M
10M
0
10
20
30
40
50
10k
100k
1M
10M
R
(Ω)
INPUT OVERDRIVE (mV)
PULLUP
R
(Ω)
PULLUP
8
_______________________________________________________________________________________
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
Typical Operating Characteristics (continued)
(V
= 5V, V = 0V, C = 15pF, V
= 100mV, T = +25°C, unless otherwise noted.)
CC
EE
L
OVERDRIVE A
PROPAGATION DELAY (t ) (V = 5V)
PROPAGATION DELAY (t ) (V = 5V)
PROPAGATION DELAY (t ) (V = 3V)
PD- CC
MAX9015 toc36
PD-
CC
PD+
CC
MAX9015 toc34
MAX9015 toc35
V
V
V
IN+
50mV/div
IN+
50mV/div
IN+
50mV/div
V
OUT
2V/div
V
OUT
2V/div
V
OUT
2V/div
2µs/div
10µs/div
2µs/div
PROPAGATION DELAY (t ) (V = 3V)
PROPAGATION DELAY (t ) (V = 1.8V)
PROPAGATION DELAY (t ) (V = 1.8V)
PD+ CC
MAX9015 toc39
PD+
CC
PD-
CC
MAX9015 toc37
MAX9015 toc38
V
V
V
IN+
50mV/div
IN+
50mV/div
IN+
50mV/div
V
OUT
1V/div
V
V
OUT
1V/div
OUT
2V/div
10µs/div
2µs/div
10µs/div
1kHz RESPONSE (V = 5V)
SLOW POWER-UP/DOWN RESPONSE
POWER-UP RESPONSE
MAX9015 toc42
CC
MAX9015 toc40
MAX9015 toc41
V
CC
2V/div
IN+
50mV/div
AC-COUPLED
V
CC
1V/div
V
OUT
2V/div
OUT
2V/div
V
REF
1V/div
V
OUT
1V/div
200µs/div
40µs/div
20µs/div
_______________________________________________________________________________________
9
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
Pin Description
PIN
NAME
FUNCTION
MAX9015/
MAX9016
MAX9017/
MAX9018
MAX9019/
MAX9020
1
2
—
—
—
4
—
—
—
4
REF
IN-
1.24V Reference Output
Comparator Inverting Input
3
IN+
Comparator Noninverting Input
Negative Supply Voltage
4
V
EE
5, 8
6
—
—
8
—
—
8
N.C.
OUT
No Connection. Not internally connected.
Comparator Output
7
V
Positive Supply Voltage
CC
—
—
—
—
—
—
1
1
OUTA
INA+
INB+
INB-
Comparator A Output
3
3
Comparator A Noninverting Input
Comparator B Noninverting Input
Comparator B Inverting Input
Comparator B Output
5
5
6
6
7
7
OUTB
INA-
—
2
Comparator A Inverting Input
REF/
INA-
1.24V Reference Output. Internally connected to the inverting input of
comparator A (MAX9017/MAX9018 only).
—
2
—
Functional Diagrams
8
7
8
V
CC
V
CC
V
CC
3
3
INA+
INA+
3
IN+
OUTA
OUTB
1
OUTA
OUTB
1
7
OUT
6
REF/INA-
INB+
2
5
INA-
INB+
2
5
2
1
IN-
MAX9019
MAX9020
MAX9015
MAX9016
REF
7
REF
6
INB-
INB-
6
1.24V
V
EE
V
EE
MAX9017
MAX9018
REF
4
4
1.24V
V
EE
4
10 ______________________________________________________________________________________
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
Output Stage Circuitry
The MAX9015–MAX9020 feature a unique break-
Detailed Description
The MAX9015–MAX9018 feature an on-board 1.24V
before-make output stage capable of driving 8mA
loads rail-to-rail. Many comparators consume orders of
magnitude more current during switching than during
steady-state operation. However, with the MAX9015–
MAX9020 family of comparators, the supply-current
change during an output transition is extremely small.
In the Typical Operating Characteristics, the Supply
Current vs. Output Transition Frequency graphs show
the minimal supply-current increase as the output
switching frequency approaches 1kHz. This character-
istic reduces the need for power-supply filter capaci-
tors to reduce glitches created by comparator
switching currents. In battery-powered applications,
this characteristic results in a substantial increase in
battery life.
0.5ꢀ ( 1.45ꢀ for the B grade) reference, yet draw an
ultra-low supply current. The MAX9019/MAX9020
(duals without reference) consume just 850nA of supply
current. All devices are guaranteed to operate down to
1.8V supply. Their common-mode input voltage range
extends 200mV beyond-the-rails. An internal 4mV hys-
teresis ensures clean output switching, even with slow-
moving input signals. Large internal output drivers
swing rail-to-rail with up to 6mA loads (MAX9015/
MAX9017/MAX9019).
The output stage employs a unique design that mini-
mizes supply-current surges while switching, which vir-
tually eliminates the supply glitches typical of many
other comparators. The MAX9015/MAX9017/MAX9019
have a push-pull output stage that sinks as well as
sources current. The MAX9016/MAX9018/MAX9020
have an open-drain output stage that can be pulled
Reference (MAX9015–MAX9018)
The MAX9015–MAX9018s’ internal +1.24V reference
has a typical temperature coefficient of 40ppm/°C over
the full -40°C to +85°C temperature range. The refer-
ence is a very-low-power bandgap cell, with a typical
35kΩ output impedance. REF can source and sink up
to 100nA to external circuitry. For applications needing
increased drive, buffer REF with a low input-bias cur-
rent op amp such as the MAX4162. Most applications
require no REF bypass capacitor. For noisy environ-
ments or fast transients, connect a 1nF to 10nF ceramic
capacitor from REF to GND.
beyond V
up to 5.5V above V . These open-drain
EE
CC
versions are ideal for implementing wire-ORed output
logic functions.
Input Stage Circuitry
The input common-mode voltage ranges extend from
V
- 0.2V to V
+ 0.2V. These comparators operate
CC
EE
at any differential input voltage within these limits. Input
bias current is typically 150pA at the trip point, if the
input voltage is between the supply rails. Comparator
inputs are protected from overvoltage by internal ESD
protection diodes connected to the supply rails. As the
input voltage exceeds the supply rails, these ESD pro-
tection diodes become forward biased and begin to
conduct increasing input bias current (see the Input
Bias Current vs. Input Bias Voltage graph in the Typical
Operating Characteristics).
Applications Information
Low-Voltage, Low-Power Operation
The MAX9015–MAX9020 are ideally suited for use with
most battery-powered systems. Table 1 lists a variety of
battery types, capacities, and approximate operating
times for the MAX9015–MAX9020, assuming nominal
conditions.
Table 1. Battery Applications Using the MAX9015–MAX9020
MAX9015A/
MAX9016A
OPERATING OPERATING
MAX9017/
MAX9018
MAX9019/
MAX9020
OPERATING
TIME (hr)
CAPACITY,
AA SIZE
(mA-hr)
BATTERY
TYPE
V
V
LIFE
FRESH
(V)
END-OF-
(V)
RECHARGEABLE
TIME (hr)
TIME (hr)
Alkaline (2 cells)
No
3.0
2.4
1.8
2000
750
2000k
1540k
1333k
500k
Nickel-cadmium
(2 cells)
Yes
1.8
750k
570k
Nickel-metal-hydride
(2 cells)
Yes
Yes
2.4
3.6
1.8
2.9
1000
1000
1000k
1000k
770k
770k
660k
660k
Lithium-ion (1 cell)
______________________________________________________________________________________ 11
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
Internal Hysteresis
THRESHOLDS
Many comparators oscillate in the linear region of oper-
ation because of noise or undesired parasitic feed-
back. Oscillations can occur when the voltage on one
input is equal or very close to the voltage on the other
input. The MAX9015–MAX9020 have internal 4mV hys-
teresis to counter parasitic effects and noise.
IN+
V
THR
HYSTERESIS
BAND
IN-
V
HB
V
THF
The hysteresis in a comparator creates two trip points:
one for the rising input voltage (V
) and one for the
THR
falling input voltage (V
) (Figure 1). The difference
THF
between the trip points is the hysteresis (V ). When
HB
OUT
the comparator’s input voltages are equal, the hystere-
sis effectively causes one comparator input to move
quickly past the other, thus taking the input out of the
region where oscillation occurs. Figure 1 illustrates the
case in which the comparator’s inverting input has a
fixed voltage applied, and the noninverting input is var-
ied. If the inputs were reversed, the figure would be the
same, except with an inverted output.
Figure 1. Threshold Hysteresis Band
V
CC
R3
Additional Hysteresis
(MAX9015/MAX9017/MAX9019)
R1
V
IN
V
CC
(Push-Pull Outputs)
OUT
R2
The MAX9015/MAX9017/MAX9019 feature a built-in
4mV hysteresis band (V ). Additional hysteresis can
HB
V
EE
be generated with three resistors using positive feed-
back (Figure 2). Use the following procedure to calcu-
late resistor values:
MAX9015
MAX9017
MAX9019
V
REF
1) Select R3. Input bias current at IN_+ is less than
2nA, so the current through R3 should be at least
0.2µA to minimize errors caused by input bias cur-
rent. The current through R3 at the trip point is
Figure 2. MAX9015/MAX9017/MAX9019 Additional Hysteresis
(V
- V
)/R3. Considering the two possible out-
REF
OUT
4) Choose the trip point for V rising (V
) such that:
put states in solving for R3 yields two formulas: R3
= V /IR3 or R3 = (V - V )/I . Use the small-
IN
THR
REF
CC
REF R3
V
er of the two resulting resistor values. For example,
HB
V
THR
> V
1 +
REF
when using the MAX9017 (V
= 1.24V) and V
CC
REF
V
CC
= 5V, and if we choose I = 0.2µA, then the two
R3
resistor values are 6.2MΩ and 19MΩ. Choose a
6.2MΩ standard value for R3.
where V
is the trip point for V rising. This is the
IN
THR
threshold voltage at which the comparator switches
its output from low to high as V rises above the
IN
trip point. For this example, choose 3V.
2) Choose the hysteresis band required (V ). For this
HB
example, choose 50mV.
5) Calculate R2 as follows:
3) Calculate R1 according to the following equation:
1
R2 =
V
HB
V
1
R1
1
R3
THR
X R1
R1 = R3
−
−
V
CC
V
REF
1
For this example, insert the values:
R2 =
= 43.99kΩ
3.0V
(1.24V X 62kΩ)
1
1
−
−
50mV
5V
62kΩ
6.2MΩ
R1 = 6.2MΩ
= 12kΩ
For this example, choose a 44.2kΩ standard value.
12 ______________________________________________________________________________________
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
6) Verify the trip voltages and hysteresis as follows:
4) Choose the trip point for V rising (V
) such that:
IN
THR
V
rising: = 2.992V, which is equivalent to REF
IN
V
HB
times R1 divided by the parallel combination of R1,
R2:
V
THR
> V
1 +
REF
V
CC
1
R1
1
R2
1
R3
(V
is the trip point for V rising). This is the
IN
THR
VTHR = VREF x R1
+
+
threshold voltage at which the comparator switches
its output from low to high as V rises above the
IN
trip point. For this example, choose 3V:
and R3.
5) Calculate R2 as follows:
V
IN
falling: = 2.942V:
1
R2 =
R1 x V
R3
CC
VTHF = VTHR
−
V
1
R1
1
R3
THR
x R1
−
−
V
REF
Hysteresis = V
- V
= 50mV.
THF
THR
1
Additional Hysteresis
R2 =
= 51.1kΩ
(MAX9016/MAX9018/MAX9020)
(Open-Drain Outputs)
3.0V
1.24V x 72kΩ
1
1
−
−
72kΩ
6.2MΩ
The MAX9016/MAX9018/MAX9020 feature a built-in 4mV
hysteresis band. These devices have open-drain outputs
and require an external pullup resistor (Figure 3).
Additional hysteresis can be generated using positive
feedback, but the formulas differ slightly from those of
the MAX9015/MAX9017/MAX9019. Use the following
procedure to calculate resistor values:
For this example, choose a 49.9kΩ standard value.
6) Verify the trip voltages and hysteresis as follows:
1
1
R2
1
R3
V
IN
rising: V
= V
x R1
+
+
REF
THR
R1
1) Select R3. Input bias current at IN_+ is less than
2nA, so the current through R3 should be at least
0.2µA to minimize errors caused by input bias cur-
rent. The current through R3 at the trip point is
= 3.043V
1
1
R2
1
R3
V
IN
falling: V
= V
x R1
+
+
THF
REF
R1
(V
- V
)/R3. Considering the two possible out-
OUT
REF
put states in solving for R3 yields two formulas: R3
= V /I or R3 = [(V - V )/I ] - R4. Use the
R1
R3 + R4
−
x V
= 2.993V
CC
REF R3
CC
REF R3
smaller of the two resulting resistor values. For
example, when using the MAX9018 (V = 1.24V)
Hysteresis = V
- V
= 50mV.
THF
REF
THR
and V
= 5V, and if we choose I = 0.2µA, and
CC
R3
R4 = 1MΩ, then the two resistor values are 6.2MΩ
V
CC
and 18MΩ. Choose a 6.2MΩ standard value for R3.
R3
2) Choose the hysteresis band required (V ).
HB
3) Calculate R1 according to the following equation.
For this example, insert the values:
R1
R4
V
IN
V
V
CC
OUT
V
HB
R1 = (R3 + R4)
R2
V
CC
EE
MAX9016
MAX9018
MAX9020
V
REF
50mV
5V
R1 = (6.2MΩ + 1MΩ)
= 72kΩ
Figure 3. MAX9016/MAX9018/MAX9020 Additional Hysteresis
______________________________________________________________________________________ 13
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
Board Layout and Bypassing
V
IN
5V
The MAX9015–MAX9020 ultra-low supply current typi-
cally requires no power-supply bypass capacitors.
However, when the supply has high output impedance,
long lead lengths or excessive noise, or fast transients,
V
OTH
V
UTH
= 4.2V
= 2.9V
R3
V
CC
INA+
bypass V
to V
CC
with a 0.1µF capacitor placed as
EE
pin as possible. Minimize signal trace
CC
close to the V
OUTA
POWER-
GOOD
lengths to reduce stray capacitance. Use a ground
plane and surface-mount components for best perfor-
mance. If REF is decoupled, use a low-leakage ceram-
ic capacitor.
REF/INA-
REF
1.24V
R2
Window Detector
The MAX9018 is ideal for window detectors (undervolt-
age/overvoltage detectors). Figure 4 shows a window
detector circuit for a single-cell Li+ battery with a 2.9V
end-of-life charge, a peak charge of 4.2V, and a nomi-
nal value of 3.6V. Choose different thresholds by
changing the values of R1, R2, and R3. OUTA provides
an active-low undervoltage indication, and OUTB pro-
vides an active-low overvoltage indication. ANDing the
two open-drain outputs provides an active-high, power-
good signal.
V
EE
MAX9018
INB+
INB-
OUTB
R1
V
EE
Figure 4. Window Detector Circuit
The design procedure is as follows:
For this example, choose a 499kΩ standard value 1ꢀ
1) Select R1. The input bias current into INB- is nor-
mally less than 2nA, so the current through R1
should exceed 100nA for the thresholds to be accu-
rate. In this example, choose R1 = 1.24MΩ
(1.24V/1µA).
resistor.
4) Calculate R3:
R3 = (R2 + R3) - R2
= 2.95MΩ - 546kΩ
= 240MΩ
2) Calculate R2 + R3. The overvoltage threshold
should be 4.2V when V is rising. The design
IN
equation is as follows:
5) Verify the resistor values. The equations are as fol-
lows, evaluated for the above example:
V
OTH
+ V
R2 + R3 = R1 x
− 1
Overvoltage threshold:
V
REF
HB
(R1 + R2 +R3)
V
= (V
+ V ) x
= 4.20V
= 2.97V
OTH
REF
HB
R1
4.2V
1.24V + 0.004
= 1.24MΩ x
=2.95MΩ
− 1
Undervoltage threshold:
(R1 + R2 +R3)
(R1 + R2)
V
UTH
= (V
− V ) x
REF
HB
3) Calculate R2. The undervoltage threshold should
be 2.9V when V is falling. The design equation is
IN
as follows:
where the internal hysteresis band, V , is 4mV.
HB
V
REF
V
− V
HB
R2 = (R1 + R2 + R3) x
− R1
Zero-Crossing Detector
UTH
Figure 5 shows a zero-crossing detector application.
The MAX9015/MAX9016/MAX9019/MAX9020s’ invert-
ing input is connected to ground, and its noninverting
(1.236)
2.9
= (1.24MΩ + 2.95MΩ) x
= 546kΩ
−1.24MΩ
input is connected to a 100mV
signal source. As the
P-P
signal at the noninverting input crosses zero, the com-
parator’s output changes state.
14 ______________________________________________________________________________________
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
Ordering Information (continued)
V
CC
PIN-
PACKAGE
TOP
MARK
PART
TEMP RANGE
V
CC
100mV
P-P
MAX9018AEKA-T -40°C to +85°C 8 SOT23-8
MAX9018BEKA-T -40°C to +85°C 8 SOT23-8
AEIR
AEIT
AEIU
AEIV
IN+
IN-
OUT
MAX9019EKA-T
MAX9020EKA-T
-40°C to +85°C 8 SOT23-8
-40°C to +85°C 8 SOT23-8
MAX9015
MAX9016
MAX9019
EE MAX9020
V
Typical Application Circuit
V
IN
5V
V
OTH
V
UTH
= 4.2V
= 2.9V
Figure 5. Zero-Crossing Detector
R3
V
CC
INA+
Logic-Level Translator
The open-drain comparators can be used to convert 5V
logic to 3V logic levels. The MAX9020 can be powered
by the 5V supply voltage, and the pullup resistor for the
MAX9020’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 translations, connect the
UNDERVOLTAGE
OUTA
REF/INA-
REF
1.24V
R2
V
EE
MAX9017
INB+
INB-
3V supply voltage to V
the pullup resistor.
and the 5V supply voltage to
CC
OUTB OVERVOLTAGE
Chip Information
R1
TRANSISTOR COUNT: 349
PROCESS: BiCMOS
V
EE
Pin Configurations
TOP VIEW
REF
IN-
1
2
3
4
8
7
6
5
N.C.
OUTA
REF/INA-
INA+
1
2
3
4
8
7
6
5
V
OUTA
INA-
1
2
3
4
8
7
6
5
V
CC
CC
V
OUTB
OUTB
INB-
CC
MAX9015
MAX9016
MAX9017
MAX9018
MAX9019
MAX9020
IN+
OUT
N.C.
INB-
INB+
INA+
V
V
EE
V
INB+
EE
EE
SOT23
SOT23
SOT23
______________________________________________________________________________________ 15
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
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.
SEE DETAIL "A"
SYMBOL
MIN
MAX
e
b
A
0.90
0.00
0.90
0.28
0.09
2.80
2.60
1.50
0.30
1.45
0.15
1.30
0.45
0.20
3.00
3.00
1.75
0.60
C
L
A1
A2
b
C
D
E
C
C
L
E1
L
E
E1
L
0.25 BSC.
L2
e
PIN 1
I.D. DOT
(SEE NOTE 6)
0.65 BSC.
1.95 REF.
e1
0
0
8
e1
D
C
C
L
L2
A2
A
GAUGE PLANE
A1
SEATING PLANE
C
0
L
NOTE:
1. ALL DIMENSIONS ARE IN MILLIMETERS.
2. FOOT LENGTH MEASURED FROM LEAD TIP TO UPPER RADIUS OF
HEEL OF THE LEAD PARALLEL TO SEATING PLANE C.
DETAIL "A"
3. PACKAGE OUTLINE EXCLUSIVE OF MOLD FLASH & METAL BURR.
4. PACKAGE OUTLINE INCLUSIVE OF SOLDER PLATING.
5. COPLANARITY 4 MILS. MAX.
6. PIN 1 I.D. DOT IS 0.3 MM MIN. LOCATED ABOVE PIN 1.
PROPRIETARY INFORMATION
TITLE:
7. SOLDER THICKNESS MEASURED AT FLAT SECTION OF LEAD
BETWEEN 0.08mm AND 0.15mm FROM LEAD TIP.
8. MEETS JEDEC MO178.
PACKAGE OUTLINE, SOT-23, 8L BODY
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0078
D
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.
16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2003 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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