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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX9027 Datasheet

(MAX9025 - MAX9028) Beyond-the-Rails Comparators With/Without Reference

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MAX9027 pdf
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19-3241; Rev 0; 5/04
UCSP, 1.8V, Nanopower, Beyond-the-Rails
Comparators With/Without Reference
General Description
The MAX9025–MAX9028 nanopower comparators in
space-saving chip-scale (UCSP™) packages feature
Beyond-the-Rails™ inputs and are guaranteed to oper-
ate down to +1.8V. The MAX9025/MAX9026 feature an
on-board 1.236V ±1% reference and draw an ultra-low
supply current of only 1µA, while the MAX9027/
MAX9028 (without reference) require just 0.6µA of supply
current. These features make the MAX9025–MAX9028
family of comparators ideal for all 2-cell battery-
monitoring/management applications.
The unique design of the output stage limits supply-
current surges while switching, virtually eliminating the
supply glitches typical of many other comparators. This
design also minimizes overall power consumption under
dynamic conditions. The MAX9025/MAX9027 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 MAX9026/MAX9028
have an open-drain output stage that makes them suit-
able for mixed-voltage system design. All devices are
available in the miniature 6-bump UCSP packages.
Refer to the MAX9117 data sheet for similar comparators
in 5-pin SC70 packages and the MAX9017 data sheet for
similar dual comparators in 8-pin SOT23 packages.
Applications
2-Cell Battery Monitoring/Management
Ultra-Low-Power Systems
Mobile Communications
Notebooks and PDAs
Sensing at Ground or Supply Line
Telemetry and Remote Systems
Medical Instruments
Features
Space-Saving UCSP Package (1mm x 1.52mm)
Ultra-Low Supply Current
0.6µA (MAX9027/MAX9028)
1µA with Reference (MAX9025/MAX9026)
Guaranteed to Operate Down to +1.8V
Internal 1.236V ±1% Reference (MAX9025/MAX9026)
Input Voltage Range Extends 200mV
Beyond-the-Rails
CMOS Push-Pull Output with ±5mA Drive
Capability (MAX9025/MAX9027)
Open-Drain Output Versions Available
(MAX9026/MAX9028)
Crowbar-Current-Free Switching
Internal Hysteresis for Clean Switching
No Phase Reversal for Overdriven Inputs
Ordering Information
PART
MAX9025EBT-T
MAX9026EBT-T
MAX9027EBT-T
MAX9028EBT-T
TEMP
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
BUMP-
PACKAGE
6 UCSP-6
6 UCSP-6
6 UCSP-6
6 UCSP-6
TOP
MARK
ADB
ADC
ADD
ADE
Pin Configurations
TOP VIEW
(BUMPS ON BOTTOM)
B
A
1 IN+
VCC
Selector Guide
PART
MAX9025
MAX9026
MAX9027
MAX9028
INTERNAL
REFERENCE
OUTPUT
TYPE
Yes Push-Pull
Yes Open-Drain
No Push-Pull
No Open-Drain
SUPPLY
CURRENT
(µA)
1.0
1.0
0.6
0.6
Typical Application Circuit appears at end of data sheet.
MAX9025–
MAX9028
2
REF
(VEE)
OUT
3 IN-
VEE
Beyond-the-Rails and UCSP are trademarks of Maxim Integrated
Products, Inc.
( ) MAX9027/MAX9028 PINS
UCSP
________________________________________________________________ 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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX9027 Datasheet

(MAX9025 - MAX9028) Beyond-the-Rails Comparators With/Without Reference

No Preview Available !

MAX9027 pdf
UCSP, 1.8V, Nanopower, Beyond-the-Rails
Comparators With/Without Reference
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to VEE)..................................................+6V
Voltage Inputs (IN+, IN-, REF) .........(VEE - 0.3V) to (VCC + 0.3V)
Output Voltage
MAX9025/MAX9027 ....................(VEE - 0.3V) to (VCC + 0.3V)
MAX9026/MAX9028 ..................................(VEE - 0.3V) to +6V
Current into Input Pins ........................................................20mA
Output Current..................................................................±50mA
Output Short-Circuit Duration .................................................10s
Continuous Power Dissipation (TA = +70°C)
6-Bump UCSP (derate 3.9mW/°C above +70°C)........308mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Bump Temperature (soldering) Reflow............................+235°C
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—MAX9025/MAX9026 (WITH REF)
(VCC = +5V, VEE = 0V, VIN+ = VREF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage Range
Supply Current
VCC Inferred from the PSRR test
1.8 5.5
VCC = 1.8V
0.8 1.5
ICC VCC = 5V
TA = +25°C
TA = TMIN to TMAX
1.0 1.7
2.2
V
µA
IN+ Voltage Range
VIN+
Inferred from output swing test
VEE -
0.2
VCC +
0.2
V
Input Offset Voltage
Input-Referred Hysteresis
Input Bias Current
Power-Supply Rejection Ratio
Output Voltage Swing High
Output Voltage Swing Low
Output Leakage Current
Output Short-Circuit Current
High-to-Low Propagation Delay
(Note 4)
VOS
VHB
IB
PSRR
VCC -
VOH
VOL
ILEAK
ISC
tPD-
(Note 2)
TA = +25°C
TA = TMIN to TMAX
(Note 3)
TA = +25°C
TA = TMIN to TMAX
VCC = 1.8V to 5.5V
MAX9025, VCC = 5V,
ISOURCE = 6mA
TA = +25°C
TA = TMIN to TMAX
MAX9025, VCC =
1.8V, ISOURCE = 1mA
TA = +25°C
TA = TMIN to TMAX
VCC = 5V,
ISINK = 6mA
TA = +25°C
TA = TMIN to TMAX
VCC = 1.8V,
ISINK= 1mA
TA = +25°C
TA = TMIN to TMAX
MAX9026 only, VO = 5.5V
Sourcing, VO = VEE
VCC = 5V
VCC = 1.8V
Sinking, VO = VCC
VCC = 5V
VCC = 1.8V
VCC = 1.8V
VCC = 5V
0.3
4
0.15
0.1
250
56
250
57
0.001
35
3
33
3
7
6
5
10
1
2
1
350
450
200
300
350
450
200
300
1
mV
mV
nA
mV/V
mV
mV
µA
mA
µs
2 _______________________________________________________________________________________


Part Number MAX9027
Description (MAX9025 - MAX9028) Beyond-the-Rails Comparators With/Without Reference
Maker Maxim Integrated Products
Total Page 13 Pages
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