MAX9038 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX9038 Datasheet PDF : 15 Pages
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MAX9038–MAX9043/
MAX9050–MAX9053
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
General Description
The MAX9038–MAX9043 and MAX9050–MAX9053 feature
combinations of low-power comparators and precision
voltage references. Their operating voltage range makes
them ideal for both 3V and 5V systems. The MAX9039/
MAX9040/MAX9041/MAX9050/MAX9051 have a single
comparator and reference consuming only 40μA of supply
current. The MAX9042/MAX9043/MAX9052/MAX9053
have dual comparators and one reference, and consume
only 55μA of supply current. Low-voltage operation and
low supply current make these devices ideal for battery-
operated systems.
The comparators feature rail-to-rail inputs and outputs,
with a common-mode input voltage range that extends
250mV beyond the supply rails. 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 features
a unique design that limits supply current surges while
switching, virtually eliminating supply glitches typical of
many other comparators. This design also minimizes
overall power consumption under dynamic conditions.
The comparator outputs have railto-rail, push-pull output
stages except the MAX9038 has an open-drain output
that sinks and sources up to 8mA. The propagation delay
is 400ns, even with the low-operating supply current.
The reference output voltage is set to 1.23V in the MAX9038/
MAX9039, to 2.048V in the MAX9040–MAX9043, and
to 2.500V in the MAX9050–MAX9053. The MAX9040–
MAX9043 and the MAX9050–MAX9053 are offered in two
grades: an A grade with 0.4% initial accuracy and 6ppm/°C
tempco, and a B grade with 1% initial accuracy (except
MAX9038/MAX9039 have an initial accuracy of ±0.4%)
and 100ppm/°C tempco. The voltage references feature a
proprietary curvature-correction circuit and laser-trimmed
thin-film resistors. These series-mode references can sink
or source up to 500μA of load current.
Applications
●● Precision Battery
Management
●● Window Comparators
●● IR Receivers
●● Level Translators
●● Digital Line Receivers
Typical Operating Circuit and Functional Diagrams appear at end
of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
Features
●● Comparator + Precision Reference in UCSP/SOT23
●● 2.5V to 5.5V Single-Supply Operation
(MAX9038–MAX9043)
●● Low Supply Current (MAX9038/MAX9039/MAX9040/
MAX9041/MAX9050/MAX9051)
• 40μA Quiescent
• 50μA with 100kHz Switching
• Open-Drain Output MAX9038
●● 400ns Propagation Delay
●● Rail-to-Rail Inputs
●● Rail-to-Rail Output Stage Sinks and Sources 8mA
●● Internal ±3mV Hysteresis
●● Voltage Reference Offers
• ±0.4% (max) Initial Accuracy (A Grade)
• 6ppm/°C (typ) Temperature Coefficient (A Grade)
• Stable for 0 to 4.7nF Capacitive Loads
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX9038BABT+T
-40°C to +125°C 6 UCSP
ADW
MAX9039BEBT+T
MAX9040AEUK+T
MAX9040BEUK+T
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
6 UCSP
5 SOT23
5 SOT23
AAZ
ADNW
ADNX
MAX9041AEUT+T
MAX9041BEUT+T
-40°C to +85°C 6 SOT23
-40°C to +85°C 6 SOT23
AAHF
AAHH
MAX9041AESA
-40°C to +85°C 8 SO
—
MAX9041BESA
-40°C to +85°C 8 SO
—
+Denotes lead(Pb)-free/RoHS-compliant package.
Ordering Information continued at end of data sheet.
Selector Guide appears at end of data sheet.
Pin Configurations
TOP VIEW (BUMPS ON BOTTOM)
TOP VIEW
+
IN+ B1
A1
VEE OUT 1
5 VCC
MAX9038
MAX9039
MAX9040
IN- B2
A2 OUT VEE 2 MAX9050
REF B3
A3 VCC IN+ 3
4 REF
UCSP
SOT23
Pin Configurations continued at end of data sheet.
19-1569; Rev 10; 1/17
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