General Description
The MAX9117–MAX9120 nanopower comparators in
space-saving SC70 packages feature Beyond-the-
Rails™ inputs and are guaranteed to operate down to
+1.6V. The MAX9117/MAX9118 feature an on-board
1.252V ±1.75% reference and draw an ultra-low supply
current of only 600nA, while the MAX9119/MAX9120
(without reference) require just 350nA of supply current.
These features make the MAX9117–MAX9120 family of
comparators ideal for all 2-cell battery-monitoring/man-
agement applications.
The unique design of the output stage limits supply-cur-
rent surges while switching, virtually eliminating the sup-
ply glitches typical of many other comparators. This
design also minimizes overall power consumption under
dynamic conditions. The MAX9117/MAX9119 have a
push-pull output stage that sinks and sources current.
Large internal-output drivers allow rail-to-rail output
swing with loads up to 5mA. The MAX9118/MAX9120
have an open-drain output stage that makes them suit-
able for mixed-voltage system design. All devices are
available in the ultra-small 5-pin SC70 package.
Applications
2-Cell Battery Monitoring/Management
Ultra-Low-Power Systems
Mobile Communications
Notebooks and PDAs
Threshold Detectors/Discriminators
Sensing at Ground or Supply Line
Telemetry and Remote Systems
Medical Instruments
Features
Space-Saving SC70 Package (Half the Size of
SOT23)
Ultra-Low Supply Current
350nA Per Comparator (MAX9119/MAX9120)
600nA Per Comparator with Reference
(MAX9117/MAX9118)
Guaranteed to Operate Down to +1.6V
Internal 1.252V ±1.75% Reference
(MAX9117/MAX9118)
Input Voltage Range Extends 200mV
Beyond-the-Rails
CMOS Push-Pull Output with ±5mA Drive
Capability (MAX9117/MAX9119)
Open-Drain Output Versions Available
(MAX9118/MAX9120)
Crowbar-Current-Free Switching
Internal Hysteresis for Clean Switching
No Phase Reversal for Overdriven Inputs
MAX9117–MAX9120
SC70, 1.6V, Nanopower, Beyond-the-Rails
Comparators With/Without Reference
________________________________________________________________ Maxim Integrated Products 1
V
EE
IN- (REF)
IN+
1
5
V
CC
OUT
MAX9117
MAX9118
MAX9119
MAX9120
SC70
TOP VIEW
2
3
4
( ) ARE FOR MAX9117/MAX9118.
IN- (REF)
N.C.
V
EE
1
8
N.C.
N.C.
MAX9117
MAX9120
SO
2
IN+
3
V
CC
7
OUT
6
4
5
Typical Application Circuit appears at end of data sheet.
Pin Configurations
Selector Guide
Ordering Information
Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.
19-1862; Rev 4; 1/07
PART
INTERNAL
REFERENCE
OUTPUT
TYPE
SUPPLY
CURRENT
(nA)
MAX9117 Yes Push-Pull 600
MAX9118 Yes Open-Drain 600
350Push-PullNoMAX9119
MAX9120 No Open-Drain 350
PART
PIN-
PACKAGE
TOP
MARK
PKG
CODE
MAX9117EXK-T 5 SC70-5
ABW
X5-1
MAX9117ESA+ 8 SO
S8-2
MAX9118EXK-T 5 SC70-5
ABX
X5-1
MAX9119EXK-T 5 SC70-5
ABY
X5-1
MAX9120EXK-T 5 SC70-5
ABZ
X5-1
MAX9120ESA+ 8 SO
S8-2
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.
Note: All devices specified for over -40°C to +85°C operating
temperature range.
+Denotes lead-free package.
MAX9117–MAX9120
SC70, 1.6V, Nanopower, Beyond-the-Rails
Comparators With/Without Reference
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—MAX9117/MAX9118 (with REF)
(V
CC
= +5V, V
EE
= 0V, V
IN+
= V
REF
, 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
Voltage Inputs (IN+, IN-, REF) .........(V
EE
- 0.3V) to (V
CC
+ 0.3V)
Output Voltage
MAX9117/MAX9119 ....................(V
EE
- 0.3V) to (V
CC
+ 0.3V)
MAX9118/MAX9120 ..................................(V
EE
- 0.3V) to +6V
Current Into Input Pins......................................................±20mA
Output Current..................................................................±50mA
Output Short-Circuit Duration .................................................10s
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SC70 (derate 2.5mW/°C above +70°C).............200mW
8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW
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
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
T
A
= +25°C 1.6 5.5
Supply Voltage Range V
CC
Inferred from the PSRR
test
T
A
= T
MIN
to T
MAX
1.8 5.5
V
V
CC
= 1.6V T
A
= +25°C
0.60
1
T
A
= +25°C
0.68
1.3
Supply Current I
CC
V
CC
= 5V
T
A
= T
MIN
to T
MAX
1.6
µA
IN+ Voltage Range V
IN+
Inferred from output swing test
V
EE
-
0.2
V
CC
+
0.2
V
T
A
= +25°C 1 5
Input Offset Voltage V
OS
(Note 2)
T
A
= T
MIN
to T
MAX
10
mV
Input-Referred Hysteresis V
HB
(Note 3) 4
mV
T
A
= +25°C
0.15
1
Input Bias Current I
B
T
A
= T
MIN
to T
MAX
2
nA
V
CC
= 1.6V to 5.5V, T
A
= +25°C 0.1 1
Power-Supply Rejection Ratio PSRR
V
CC
= 1.8V to 5.5V, T
A
= T
MIN
to T
MAX
1
mV/V
T
A
= +25°C
190
400
MAX9117, V
CC
= 5V,
I
SOURCE
= 5mA
T
A
= T
MIN
to T
MAX
500
V
CC
= 1.6V, T
A
= +25°C 100
200
Output Voltage Swing High
V
CC
- V
OH
MAX9117,
I
SOURCE
= 1mA
V
CC
= 1.8V,
T
A
= T
MIN
to T
MAX
300
mV
T
A
= +25°C
190
400
V
CC
= 5V, I
SINK
= 5mA
T
A
= T
MIN
to T
MAX
500
V
CC
= 1.6V, T
A
= +25°C 100
200
Output Voltage Swing Low V
OL
I
SINK
= 1mA
V
CC
= 1.8V,
T
A
= T
MIN
to T
MAX
300
mV
Output Leakage Current I
LEAK
MAX9118 only, V
O
= 5.5V
0.002
1
µA
V
CC
= 5V 35
Sourcing, V
O
= V
EE
V
CC
= 1.6V 3
V
CC
= 5V 35
Output Short-Circuit Current I
SC
Sinking, V
O
= V
CC
V
CC
= 1.6V 3
mA
V
CC
= 1.6V 16
High-to-Low Propagation Delay
(Note 4)
t
PD-
V
CC
= 5V 14
µs
MAX9117–MAX9120
SC70, 1.6V, Nanopower, Beyond-the-Rails
Comparators With/Without Reference
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—MAX9119/MAX9120 (without REF)
(V
CC
= +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)
ELECTRICAL CHARACTERISTICS—MAX9117/MAX9118 (with REF) (continued)
(V
CC
= +5V, V
EE
= 0V, V
IN+
= V
REF
, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
V
CC
= 1.6V 15
MAX9117 only
V
CC
= 5V 40
V
CC
= 1.6V, R
PULLUP
= 100k
16
Low-to-High Propagation Delay
(Note 4)
t
PD+
MAX9118 only
V
CC
= 5V,
R
PULLUP
= 100k
45
µs
Rise Time t
RISE
MAX9117 only, C
L
= 15pF 1.6 µs
Fall Time t
FALL
C
L
= 15pF 0.2 µs
Power-Up Time t
ON
1.2
T
A
= +25°C
1.230 1.252 1.274
Reference Voltage V
REF
T
A
= T
MIN
to T
MAX
1.196 1.308
V
Reference Voltage Temperature
Coefficient
TC
REF
100
°C
BW = 10Hz to 100kHz 1.1
Reference Output Voltage Noise E
N
BW = 10Hz to 100kHz, C
REF
= 1nF 0.2
Reference Line Regulation
V
REF
/
V
CC
V
CC
= 1.6V to 5.5V
0.25
Reference Load Regulation
V
REF
/
I
OUT
I
OUT
= 10nA ±1
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
T
A
= +25°C 1.6 5.5
Supply Voltage Range V
CC
Inferred from the
PSRR test
T
A
= T
MIN
to T
MAX
1.8 5.5
V
V
CC
= 1.6V, T
A
= +25°C 0.35 0.80
T
A
= +25°C 0.45 0.80
Supply Current I
CC
V
CC
= 5V
T
A
= T
MIN
to T
MAX
1.2
µA
Input Common-Mode
Voltage Range
V
CM
Inferred from the CMRR test
V
EE
-
0.2
V
CC
+
0.2
V
T
A
= +25°C15
Input Offset Voltage V
OS
-0.2V V
CM
(V
CC
+ 0.2V)
(Note 2)
T
A
= T
MIN
to T
MAX
10
mV
Input-Referred Hysteresis V
HB
-0.2V V
CM
(V
CC
+ 0.2V) (Note 3) 4 mV
T
A
= +25°C 0.15 1
Input Bias Current I
B
T
A
= T
MIN
to T
MAX
2
nA
Input Offset Current I
OS
75 pA
V
CC
= 1.6V to 5.5V, T
A
= +25°C 0.1 1
Power-Supply Rejection Ratio PSRR
V
CC
= 1.8V to 5.5V, T
A
= T
MIN
to T
MAX
1
mV/V
Common-Mode Rejection Ratio CMRR (V
EE
- 0.2V) V
CM
(V
CC
+ 0.2V) 0.5 3 mV/V

MAX9120ESA-T

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Analog Comparators 1.6V nPower Comparato
Lifecycle:
New from this manufacturer.
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