MAX9140 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators

19-2064; Rev 0; 6/01
40ns, Low-Power, 3V/5V, Rail-to-Rail
Single-Supply Comparators
General Description
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
supply current is only 150µA per comparator.
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.
The MAX9140/MAX9141/MAX9142/MAX9144 are high-
er-speed, lower-power, and lower-cost upgrades to
industry-standard comparators MAX941/MAX942/
MAX944.
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.
Applications
Line Receivers
Battery-Powered Systems
Threshold Detectors/Discriminators
3V/5V Systems
Zero-Crossing Detectors
Sampling Circuits
Features
o Fast, 40ns Propagation Delay (10mV Overdrive)
o Low Power:
0.45mW Power Dissipation Per Comparator (3V)
150µA Supply Current
o Optimized for 3V and 5V Applications
(Operation Down to 2.7V)
o Rail-to-Rail Input Voltage Range
o Low, 500µV Offset Voltage
o Internal Hysteresis for Clean Switching
o Outputs Swing 300mV of Power Rails
o CMOS/TTL-Compatible Outputs
o Output Latch (MAX9141 only)
o Shutdown Function (MAX9141 only)
o Available in SC70 and SOT23 Packages
Ordering Information
PART
MAX9140EXK-T
MAX9140EUK-T
MAX9141EKA-T
MAX9141ESA
MAX9142EKA-T
MAX9142ESA
MAX9144EUD
MAX9144ESD
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
5 SC70-5
5 SOT23-5
8 SOT23-8
8 SO
8 SOT23-8
8 SO
14 TSSOP
14 SO
TOP
MARK
ACC
ADQP
AAFD
—
AAFE
—
—
—
Pin Configurations
TOP VIEW
OUT 1
GND 2
IN+ 3
MAX9140
5 V_CC
V_CC 1
IN+ ²
IN- 3
GND 4
4 IN-
SC70/SOT23
MAX9141
SOT23/SO
8 N.C.
7 OUT
6 SHDN
5 _LE
OUTA 1
INA- ² _A
INA+ ³
GND ⁴
MAX9142
B
SOT23/SO
OUTA ₁
8 V_CC
7 OUTB
6 INB-
5 _INB+
INA- ₂
INA+ ₃
V_CC 4
INB+ ₅
INB- 6
OUTB ₇
14 ^OUTD
13 IND-
A
D
12 ^IND+
MAX9144
B
C
11 GND
10 INC+
9 INC-
8 OUTC
TSSOP/SO
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
________________________________________________________________Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.