19-2064; Rev 3; 1/10
40ns, Low-Power, 3V/5V, Rail-to-Rail
Single-Supply Comparators
02/MAX914
General Description
Features
♦ Fast, 40ns Propagation Delay (10mV Overdrive)
♦ Low Power
The MAX9140/MAX9141 are single and the MAX9142/
MAX9144 are dual/quad high-speed comparators opti-
mized for systems powered from a 3V or 5V supply. The
MAX9141 features latch enable and device shutdown.
These devices combine high speed, low power, and
rail-to-rail inputs. Propagation delay is 40ns, while sup-
ply current is only 150µA per comparator.
150µA Supply Current Per Comparator (3V)
♦ Optimized for 3V and 5V Applications
♦ Rail-to-Rail Input Voltage Range
♦ Low, 500µV Offset Voltage
♦ Internal Hysteresis for Clean Switching
♦ Outputs Swing 300mV of Power Rails
♦ CMOS/TTL-Compatible Outputs
♦ Output Latch (MAX9141 Only)
♦ Shutdown Function (MAX9141 Only)
♦ Available in SC70 and SOT23 Packages
The input common-mode range of the MAX9140/
MAX9141/MAX9142/MAX9144 extends beyond both
power-supply rails. The outputs pull to within 0.3V of
either supply rail without external pullup circuitry, mak-
ing these devices ideal for interface with both CMOS
and TTL logic. All input and output pins can tolerate a
continuous short-circuit fault condition to either rail.
Internal hysteresis ensures clean output switching, even
with slow-moving input signals.
Ordering Information
PART*
PIN-PACKAGE
5 SOT23
5 SC70
TOP MARK
+AFEJ
+ASW
+AUG
ACC
The MAX9140/MAX9141/MAX9142/MAX9144 are high-
er-speed, lower-power, and lower-cost upgrades to
industry-standard comparators MAX941/MAX942/
MAX944.
MAX9140AAUK+T
MAX9140AAXK+T
MAX9140AAXK/V+T
MAX9140EXK-T
MAX9140EUK-T
MAX9141EKA-T
MAX9141ESA
5 SC70
The MAX9140 are offered in tiny 5-pin SC70 and SOT23
packages. The MAX9141 and MAX9142 are available in
8-pin SOT23 and SO packages, while the MAX9144 is
available in both 14-pin SO and TSSOP packages.
5 SC70
5 SOT23
8 SOT23
8 SO
ADQP
AAFD
—
Applications
MAX9142EKA-T
MAX9142ESA
8 SOT23
8 SO
AAFE
—
Line Receivers
MAX9144EUD
14 TSSOP
14 SO
—
Battery-Powered Systems
Threshold Detectors/Discriminators
3V/5V Systems
MAX9144ESD
—
Note: All E-grade devices are specified over the -40°C to +85°C
operating temperature range. All A-grade devices are specified
over the -40°C to +125°C operating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
-Denotes a package containing lead(Pb).
T = Tape and reel.
Zero-Crossing Detectors
Sampling Circuits
/V denotes an automotive qualified part.
Pin Configurations
TOP VIEW
OUTA
INA-
OUTD
IND-
1
2
3
4
5
6
7
14
13
12
11
10
9
MAX9140
OUT
GND
IN+
1
2
3
5
4
V
CC
MAX9141
V
1
2
3
4
1
2
3
4
MAX9142
8
7
6
5
N.C.
OUT
8
7
6
5
V
CC
+
OUTA
INA-
A
B
D
C
CC
+
+
INA
IND
IN
OUTB
INB-
A
GND
V
CC
+
MAX9144
IN-
SHDN
LE
+
INA
+
INB
B
INC
GND
+
INB
GND
IN-
INB-
OUTB
INC-
SOT23/SO
SOT23/SO
OUTC
8
SC70/SOT23
TSSOP/SO
________________________________________________________________Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.