Rainbow Electronics MAX9077 User Manual
General description, Applications, Features

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1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
General Description
The MAX9075/MAX9077 single/dual comparators are
optimized for 3V and 5V single-supply applications.
These comparators have a 580ns propagation delay and
consume just 3µA per comparator. The combination of
low-power, single-supply operation down to 2.1V, and
ultra-small footprint makes these devices ideal for all
portable applications.
The MAX9075/MAX9077 have a common-mode input
voltage range of -0.2V to V
CC
- 1.2V. Unlike many com-
parators, there is no differential clamp between the
inputs, allowing the differential input voltage range to
extend Rail-to-Rail
®
. All inputs and outputs tolerate a
continuous short-circuit fault condition to either rail.
The design of the output stage limits supply-current
surges while switching (typical of many other compara-
tors), minimizing power consumption under dynamic
conditions. Large internal push-pull output drivers allow
rail-to-rail output swing with loads up to 2mA, making
these devices ideal for interface with TTL/CMOS logic.
The MAX9075 single comparator is available in 5-pin
SC70 and SOT23 packages, while the MAX9077 dual
comparator is available in 8-pin SOT23, µMAX, and SO
packages.
Applications
Battery-Powered Systems
Threshold Detectors/Discriminators
Keyless Entry Systems
IR Receivers
Digital Line Receivers
Features
♦ 580ns Propagation Delay from Only 3µA
♦ 2.1V to 5.5V Single-Supply Operation
♦ Ground-Sensing Inputs
♦ Rail-to-Rail Outputs
♦ No Output Phase Inversion for Overdriven Inputs
♦ No Differential Clamp Across Inputs
♦ Available in Ultra-Small Packages
5-Pin SC70 (MAX9075)
8-Pin SOT23 (MAX9077)
MAX9075/MAX9077
Low-Cost, Ultra-Small, 3µA
Single-Supply Comparators
________________________________________________________________ Maxim Integrated Products
1
19-1547; Rev 1; 9/01
Ordering Information
Typical Operating Circuit
V
CC
V
CC
OUT
GND
V
REF
IN-
IN+
V
IN
MAX9075
MAX9077
Pin Configurations
TOP VIEW
GND
IN-
IN+
1
5
V
CC
OUT
MAX9075
SC70-5/SOT23-5
2
3
4
Pin Configurations continued at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX9075EXK-T -40
°C to +85°C
5 SC70-5
AAC
MAX9075EXK-T -40
°C to +85°C
5 SOT23-5
ADLX
MAX9077EKA-T -40
°C to +85°C
8 SOT23-8
AAAD
MAX9077EUA
-40
°C to +85°C
8 µMAX
—
MAX9077ESA
-40
°C to +85°C
8 SO
—