MAX9140/MAX9141/
MAX9142/MAX9144
40ns, Low-Power, 3V/5V, Rail-to-Rail
Single-Supply Comparators
General Description
Features
The MAX9140/MAX9141 are single and the MAX9142/
MAX9144 are dual/quad high-speed comparators optimized
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 supply current is only
150μA per comparator.
The input common-mode range of the devices extends beyond
both power-supply rails. The outputs pull to within 0.3V of
either supply rail without external pullup circuitry, making 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.
●● Fast, 40ns Propagation Delay (10mV Overdrive)
●● Low Power
• 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
Ordering Information
PART*
PIN-PACKAGE
TOP MARK
The devices are higher-speed, lower-power, and lowercost upgrades to industry-standard comparators MAX941/
MAX942/MAX944.
MAX9140AAUK+T
5 SOT23
+AFEJ
MAX9140AAXK+T
5 SC70
+ASW
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.
MAX9140EXK-T
5 SC70
MAX9140EUK-T
5 SOT23
ADQP
MAX9141EKA-T
8 SOT23
AAFD
MAX9141ESA
8 SO
MAX9142EKA-T
8 SOT23
MAX9142ESA
8 SO
—
MAX9144EUD
14 TSSOP
—
MAX9144ESD
14 SO
—
Applications
●●
●●
●●
●●
●●
●●
Line Receivers
Battery-Powered Systems
Threshold Detectors/Discriminators
3V/5V Systems
Zero-Crossing Detectors
Sampling Circuits
ACC
—
AAFE
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.
Pin Configurations
TOP VIEW
OUTA 1
OUT 1
MAX9140 5 VCC
MAX9141
4
SC70/SOT23
IN-
N.C.
OUTA
1
7
OUT
INA-
2
IN- 3
IN+ 3
8
IN+ 2
GND 2
19-2064; Rev 5; 9/15
VCC 1
6
SHDN
INA+ 3
GND 4
5
LE
GND 4
MAX9142
SOT23/SO
B
SOT23/SO
VCC
7
A
8
OUTB
6
INB-
5
INB+
INA- 2
INA+ 3
14 OUTD
A
VCC 4
INB+ 5
INB- 6
D
MAX9144
B
C
13 IND12 IND+
11 GND
10 INC+
TSSOP/SO
9
INC-
8
OUTB 7
OUTC
