MAX9120 Maxim, MAX9120 Datasheet

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MAX9120

Manufacturer Part Number
MAX9120
Description
Manufacturer
Maxim
Datasheet

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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.
Typical Application Circuit appears at end of data sheet.
19-1862; Rev 4; 1/07
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.
Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.
MAX9117
MAX9118
MAX9119
MAX9120
PART
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
REFERENCE
INTERNAL
SC70, 1.6V, Nanopower, Beyond-the-Rails
________________________________________________________________ Maxim Integrated Products
Yes
Yes
No
No
General Description
Comparators With/Without Reference
Open-Drain
Open-Drain
OUTPUT
Push-Pull
Push-Pull
Selector Guide
TYPE
Applications
CURRENT
SUPPLY
(nA)
600
600
350
350
♦ Space-Saving SC70 Package (Half the Size of
♦ Ultra-Low Supply Current
♦ Guaranteed to Operate Down to +1.6V
♦ Internal 1.252V ±1.75% Reference
♦ Input Voltage Range Extends 200mV
♦ CMOS Push-Pull Output with ±5mA Drive
♦ Open-Drain Output Versions Available
♦ Crowbar-Current-Free Switching
♦ Internal Hysteresis for Clean Switching
♦ No Phase Reversal for Overdriven Inputs
Note: All devices specified for over -40°C to +85°C operating
temperature range.
+
MAX9117EXK-T
MAX9117ESA+
MAX9118EXK-T
MAX9119EXK-T
MAX9120EXK-T
MAX9120ESA+
Denotes lead-free package.
SOT23)
(MAX9117/MAX9118)
Beyond-the-Rails
Capability (MAX9117/MAX9119)
(MAX9118/MAX9120)
TOP VIEW
( ) ARE FOR MAX9117/MAX9118.
OUT
V
IN+
350nA Per Comparator (MAX9119/MAX9120)
600nA Per Comparator with Reference
EE
PART
(MAX9117/MAX9118)
1
2
3
MAX9117
MAX9118
MAX9119
MAX9120
SC70
PIN-
PACKAGE
5 SC70-5
8 SO
5 SC70-5
5 SC70-5
5 SC70-5
8 SO
5
4
Ordering Information
V
IN- (REF)
CC
Pin Configurations
IN- (REF)
N.C.
V
IN+
EE
MARK
ABW
TOP
1
2
3
4
ABX
ABY
ABZ
MAX9117
MAX9120
SO
Features
CODE
PKG
X5-1
S8-2
X5-1
X5-1
X5-1
S8-2
8
7
6
5
N.C.
OUT
N.C.
V
CC
1

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MAX9120 Summary of contents

Page 1

... 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 ...

Page 2

... Voltage Inputs (IN+, IN-, REF) .........(V EE Output Voltage MAX9117/MAX9119 ....................(V EE MAX9118/MAX9120 ..................................(V Current Into Input Pins......................................................±20mA Output Current..................................................................±50mA Output Short-Circuit Duration .................................................10s 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 ...

Page 3

... Rise Time Fall Time Power-Up Time Reference Voltage Reference Voltage Temperature Coefficient Reference Output Voltage Noise Reference Line Regulation Reference Load Regulation ELECTRICAL CHARACTERISTICS—MAX9119/MAX9120 (without REF + -40°C to +85°C, unless otherwise noted. Typical values are ...

Page 4

... SC70, 1.6V, Nanopower, Beyond-the-Rails Comparators With/Without Reference ELECTRICAL CHARACTERISTICS—MAX9119/MAX9120 (without REF) (continued + -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL V Output Voltage Swing High V Output Voltage Swing Low V Output Leakage Current ...

Page 5

... SUPPLY CURRENT vs. TEMPERATURE 900 850 V = +5V 800 CC 750 V = +3V CC 700 650 V CC 600 550 5.0 5.5 -40 -15 10 TEMPERATURE (°C) MAX9119/MAX9120 SUPPLY CURRENT vs. OUTPUT TRANSITION FREQUENCY 10k 100k 1 10 100 OUTPUT TRANSITION FREQUENCY (Hz) MAX9117/MAX9119 OUTPUT VOLTAGE HIGH vs. SOURCE CURRENT 0.7 ...

Page 6

SC70, 1.6V, Nanopower, Beyond-the-Rails Comparators With/Without Reference (V = +5V 0V 15pF OVERDRIVE MAX9117/MAX9119 OUTPUT VOLTAGE HIGH vs. SOURCE CURRENT AND TEMPERATURE 0.6 0.5 0 +25° ...

Page 7

... TEMPERATURE (°C) PROPAGATION DELAY (t ) PD- vs. INPUT OVERDRIVE + INPUT OVERDRIVE (mV) MAX9118/MAX9120 PROPAGATION DELAY (t ) PD+ vs. PULLUP RESISTANCE 100 + + +1. 100 1000 10,000 R (kΩ) PULLUP PROPAGATION DELAY (t ) PD- vs ...

Page 8

SC70, 1.6V, Nanopower, Beyond-the-Rails Comparators With/Without Reference (V = +5V 0V 15pF OVERDRIVE MAX9117/MAX9119 PROPAGATION DELAY ( +5V) CC MAX9117-20 toc28 IN+ (50mV/div) OV OUT (2V/div) OV 20µs/div ...

Page 9

... ESD protection Input diodes become forward biased and begin to conduct. No Connection. Not internally The MAX9117–MAX9120 contain a unique break- connected. before-make output stage capable of rail-to-rail opera- tion with up to ±5mA loads. Many comparators consume orders of magnitude more current during switching than during steady-state operation ...

Page 10

... MAX4162. Applications Information Low-Voltage, Low-Power Operation The MAX9117–MAX9120 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 MAX9117–MAX9120, assuming nominal conditions ...

Page 11

... V IN Figure 3. MAX9117/MAX9119 Additional Hysteresis = +5V, and if Additional Hysteresis (MAX9118/MAX9120) CC The MAX9118/MAX9120 have a 4mV internal hysteresis band. They have open-drain outputs and require an external pullup resistor (Figure 4). Additional hysteresis can be generated using positive feedback, but the for- ). For this HB mulas differ slightly from those of the MAX9117/ MAX9119 ...

Page 12

... Logic-Level Translator The Typical Application Circuit shows an application that converts 5V logic to 3V logic levels. The MAX9120 is powered by the +5V supply voltage, and the pullup resistor for the MAX9120’s open-drain output is con- nected to the +3V supply voltage. This configuration allows the full 5V logic swing without creating overvolt- age on the 3V logic inputs ...

Page 13

... SC70, 1.6V, Nanopower, Beyond-the-Rails Comparators With/Without Reference (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.) ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, 5L SC70 1 21-0076 ...

Page 14

... Revision History Pages changed at Rev 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. ...

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