MAX9026 Maxim, MAX9026 Datasheet

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MAX9026

Manufacturer Part Number
MAX9026
Description
The MAX9025–MAX9028 nanopower comparators in space-saving chip-scale (UCSP™) packages feature Beyond-the-Rails™ inputs and are guaranteed to operate down to +1
Manufacturer
Maxim
Datasheet
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.
Typical Application Circuit appears at end of data sheet.
19-3241; Rev 1; 6/11
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 and UCSP are trademarks of Maxim Integrated
Products, Inc.
MAX9025
MAX9026
MAX9027
MAX9028
PART
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
REFERENCE
UCSP, 1.8V, Nanopower, Beyond-the-Rails
INTERNAL
________________________________________________________________ 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
(µA)
1.0
1.0
0.6
0.6
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
MAX9025EBT+T
MAX9026EBT+T
MAX9027EBT+T
MAX9028EBT+T
Space-Saving UCSP Package (1mm x 1.52mm)
Ultra-Low Supply Current
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
TOP VIEW
(BUMPS ON BOTTOM)
( ) MAX9027/MAX9028 PINS
0.6µA (MAX9027/MAX9028)
1µA with Reference (MAX9025/MAX9026)
PART
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
1
2
3
RANGE
TEMP
(V
Ordering Information
IN+
REF
IN-
B
EE
)
Pin Configurations
MAX9025–
MAX9028
UCSP
OUT
BUMP-
PACKAGE
V
V
A
CC
EE
6 UCSP
6 UCSP
6 UCSP
6 UCSP
Features
MARK
TOP
ADB
ADC
ADD
ADE
1

Related parts for MAX9026

MAX9026 Summary of contents

Page 1

... 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– ...

Page 2

... 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 +5V, V ...

Page 3

... UCSP, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference ELECTRICAL CHARACTERISTICS—MAX9025/MAX9026 (WITH REF) (continued +5V 0V IN+ REF A PARAMETER SYMBOL Low-to-High Propagation Delay (Note 4) Rise Time Fall Time Power-Up Time Reference Voltage Reference Voltage Temperature Coefficient Reference Output Voltage Noise ∆ ...

Page 4

... 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 (Figure 2). OS Note 4: Specified with an input overdrive (V above and beyond the offset voltage and hysteresis of the comparator input. For the MAX9025/MAX9026, reference voltage error should also be added. 4 _______________________________________________________________________________________ CONDITIONS T = +25° ...

Page 5

... TRANSITION FREQUENCY (kHz) OUTPUT VOLTAGE LOW vs. SINK CURRENT 800 600 T = +25°C A 400 T = +85°C A 200 T = -40° SINK CURRENT (mA) MAX9025/MAX9026 SUPPLY CURRENT vs. TEMPERATURE 1200 1000 800 V = 1.8V CC 600 5.5 -40 - TEMPERATURE (°C) MAX9027/MAX9028 SUPPLY CURRENT vs. OUTPUT ...

Page 6

... V OUT 1. -40 - TEMPERATURE (°C) INPUT BIAS CURRENT vs. INPUT BIAS VOLTAGE 1.000 IN+ = 2.5V 0.600 0.200 -0.200 -0.600 -1.000 -0.5 0.5 1.5 2.5 3.5 4.5 5.5 INPUT BIAS VOLTAGE (IN-) (V) MAX9025/MAX9026 REFERENCE VOLTAGE vs. SUPPLY VOLTAGE 1.238 1.237 1.236 1.235 1.234 1.5 2.5 3.5 4.5 5.5 SUPPLY VOLTAGE (V) ...

Page 7

... TEMPERATURE (°C) MAX9025/MAX9027 PROPAGATION DELAY (t ) PD+ vs. CAPACITIVE LOAD 1. 0.01 0 100 CAPACITIVE LOAD (nF) MAX9026/MAX9028 PROPAGATION DELAY (t ) PD+ vs. PULLUP RESISTANCE 200 175 150 125 100 1. 100 1000 10000 PULLUP RESISTANCE (kΩ) ...

Page 8

UCSP, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference (V = +5V 0V 15pF, V OVERDRIVE PROPAGATION DELAY (V = 3V) CC MAX9025 toc28 +100mV IN+ -100mV OUT 1V/div 0V 20µs/div 10kHz FREQUENCY RESPONSE (V ...

Page 9

... The MAX9025/MAX9027 have a push-pull output stage that sinks as well as sources current. The _______________________________________________________________________________________ IN+ OUT IN- MAX9026/MAX9028 have an open-drain output stage that can be pulled beyond V above V . These open-drain versions are ideal for EE implementing wire-OR output logic functions. FUNCTION ...

Page 10

... Hydride Yes (2 Cells) 10 ______________________________________________________________________________________ Figure 1. MAX9025/MAX9026 Voltage Reference Output Equivalent Circuit quickly past the other, thus taking the input out of the region where oscillation occurs. Figure 2 illustrates the case in which IN- has a fixed voltage applied, and IN+ is varied. If the inputs were reversed, the figure would be the same, except with an inverted output ...

Page 11

... Figure 3. MAX9025/MAX9027 External Hysteresis Simplest Circuit When the input threshold is not set at 1/2 V teresis added to the input threshold will not be symmet- rical. This is typical of the MAX9025/MAX9026 where the internal reference is usually used as the threshold. If the asymmetry is unacceptable, it can be corrected CC by adding resistors to the circuit. ...

Page 12

... For the latest application details on UCSP construction, dimensions, tape carrier information, printed circuit board techniques, bump-pad layout, and recommended reflow temperature profiles, as well as the latest information on reliability testing results Maxim’s web site at www.maxim-ic.com/ucsp to find the Application Note: UCSP—A Wafer-Level Chip-Scale Package. 12 ...

Page 13

... Comparators With/Without Reference For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...

Page 14

... Added information for lead-free versions 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. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

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