MAX9038–MAX9043/
MAX9050–MAX9053
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
General Description
Features
o Comparator + Precision Reference in UCSP/SOT23
The MAX9038–MAX9043 and MAX9050–MAX9053 fea-
ture combinations of low-power comparators and preci-
sion 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.
o 2.5V to 5.5V Single-Supply Operation
(MAX9038–MAX9043)
o Low Supply Current (MAX9038/MAX9039/MAX9040/
MAX9041/MAX9050/MAX9051)
40µA Quiescent
50µA with 100kHz Switching
Open-Drain Output MAX9038
o 400ns Propagation Delay
o Rail-to-Rail Inputs
o Rail-to-Rail Output Stage Sinks and Sources 8mA
o Internal 3mV Hysteresis
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 switch-
ing, even with slow-moving input signals. The output
stage features a unique design that limits supply cur-
rent 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 rail-
to-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.
o Voltage Reference Offers
0.4ꢀ (max) Initial Accuracy (A ꢁrade)
6ppm/°C (typ) Temperature Coefficient (A ꢁrade)
Stable for 0 to 4.7nF Capacitive Loads
Ordering Information
PIN-
TOP
PART
TEMP RANꢁE
PACKAꢁE MARK
MAX9038BABT+T -40°C to +125°C
MAX9039BEBT+T -40°C to +85°C
6 UCSP
6 UCSP
5 SOT23
5 SOT23
6 SOT23
6 SOT23
8 SO
ADW
AAZ
MAX9040AEUK+T -40°C to +85°C
MAX9040BEUK+T -40°C to +85°C
MAX9041AEUT+T -40°C to +85°C
ADNW
ADNX
AAHF
AAHH
—
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-cor-
rection circuit and laser-trimmed thin-film resistors.
These series-mode references can sink or source up to
500µA of load current.
MAX9041BEUT+T
MAX9041AESA
MAX9041BESA
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
8 SO
—
+Denotes a lead(Pbꢀ-free/RoHS-compliant package.
Ordering Information continued at end of data sheet.
Selector ꢁuide appears at end of data sheet.
Pin Configurations
TOP VIEW (BUMPS ON BOTTOM)
TOP VIEW
Applications
+
B1
A1
V
IN+
EE
OUT
1
2
3
5
4
V
CC
Precision Battery
Management
Level Translators
MAX9038
MAX9039
MAX9040
MAX9050
Digital Line Receivers
V
B2
B3
A2
A3
OUT
IN-
EE
Window Comparators
IR Receivers
IN+
REF
REF
V
CC
Typical Operating Circuit and Functional Diagrams appear
at end of data sheet.
SOT23
UCSP
Pin Configurations continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-1569; Rev 8; 9/13