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MAX990EUA Datasheet(PDF) 1 Page - Maxim Integrated Products

Part # MAX990EUA
Description  Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX990EUA Datasheet(HTML) 1 Page - Maxim Integrated Products

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General Description
The MAX985/MAX986/MAX989/MAX990/MAX993/
MAX994 single/dual/quad micropower comparators
feature low-voltage operation and Rail-to-Rail® inputs
and outputs. Their operating voltages range from 2.5V
to 5.5V, making them ideal for both 3V and 5V systems.
These comparators also operate with ±1.25V to ±2.75V
dual supplies. They consume only 11µA of supply cur-
rent while achieving a 300ns propagation delay.
Input bias current is typically 1.0pA, and input offset
voltage is typically 0.5mV. Internal hysteresis ensures
clean output switching, even with slow-moving input
signals.
The output stage’s unique design limits supply-current
surges while switching, virtually eliminating the supply
glitches typical of many other comparators. The
MAX985/MAX989/MAX993 have a push-pull output
stage that sinks as well as sources current. Large inter-
nal output drivers allow rail-to-rail output swing with
loads up to 8mA. The MAX986/MAX990/MAX994 have
an open-drain output stage that can be pulled beyond
VCC to 6V (max) above VEE. These open-drain versions
are ideal for level translators and bipolar to single-
ended converters.
The single MAX985 is available in a chip-scale pack-
age (UCSP™), significantly reducing the required PC
board area. The single MAX985/MAX986 are available
in 5-pin SC70 packages and the dual MAX989/MAX990
are available in 8-pin SOT23 packages.
____________________________Features
o 11µA Quiescent Supply Current
o 2.5V to 5.5V Single-Supply Operation
o Common-Mode Input Voltage Range Extends
250mV Beyond the Rails
o 300ns Propagation Delay
o Push-Pull Output Stage Sinks and Sources
8mA Current (MAX985/MAX989/MAX993)
o Open-Drain Output Voltage Extends Beyond VCC
(MAX986/MAX990/MAX994)
o Unique Output Stage Reduces Output Switching
Current, Minimizing Overall Power Consumption
o 80µA Supply Current at 1MHz Switching
Frequency
o No Phase Reversal for Overdriven Inputs
o Available in Space-Saving Packages:
UCSP (MAX985)
SOT23 (MAX985/MAX986/MAX989/MAX990)
µMAX (MAX989/MAX990)
Micropower, Low-Voltage, UCSP/SC70,
Rail-to-Rail I/O Comparators
________________________________________________________________ Maxim Integrated Products
1
TOP VIEW
(BUMPS ON BOTTOM)
UCSP
MAX985
B1
B2
B3
A1
A2
A3
IN+
IN-
N.C.
VEE
OUT
VCC
Pin Configurations
19-1229; Rev 3; 9/02
Ordering Information
Ordering Information continued at end of data sheet.
Typical Application Circuit appears at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
Pin Configurations continued at end of data sheet.
Portable/Battery-
Powered Systems
Mobile Communications
Zero-Crossing Detectors
Window Comparators
Level Translators
Threshold Detectors/
Discriminators
Ground/Supply-Sensing
Applications
IR Receivers
Digital Line Receivers
PART
TEMP RANGE
PIN/BUMP-
PACKAGE
TOP
MARK
MAX985EBT-T*
-40°C to +85°C
6 UCSP-6
AAY
MAX985EXK-T
-40°C to +85°C
5 SC70-5
ABK
Applications
Selector Guide
PART
COMPARATORS
PER PACKAGE
OUTPUT
STAGE
MAX985
1
Push-Pull
MAX986
1
Open-Drain
MAX989
2
Push-Pull
MAX990
2
Open-Drain
MAX993
4
Push-Pull
MAX994
4
Open-Drain
UCSP is a trademark of Maxim Integrated Products, Inc.
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.
*UCSP reliability is integrally linked to the user’s assembly meth-
ods, circuit board material, and environment. Refer to the UCSP
Reliability section of this data sheet for more information.


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