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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX942 Datasheet

Single-Supply Comparators

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MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
General Description
The MAX941/MAX942/MAX944 are single/dual/quad high-
speed comparators optimized for systems powered from a
3V or 5V supply. These devices combine high speed, low
power, and rail-to-rail inputs. Propagation delay is 80ns,
while supply current is only 350μA per comparator.
The input common-mode range of the MAX941/MAX942/
MAX944 extends beyond both power-supply rails. The
outputs pull to within 0.4V 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.
The MAX941 features latch enable and device shutdown.
The single MAX941 and dual MAX942 are offered in a
tiny μMAX® package. Both the single and dual MAX942
are available in 8-pin DIP and SO packages. The quad
MAX944 comes in 14-pin DIP and narrow SO packages.
Applications
● 3V/5V Systems
● Battery-Powered Systems
● Threshold Detectors/Discriminators
● Line Receivers
● Zero-Crossing Detectors
● Sampling Circuits
Pin Configurations
Features
Available in μMAX Package
● Optimized for 3V and 5V Applications
(Operation Down to 2.7V)
● Fast, 80ns Propagation Delay (5mV Overdrive)
● Rail-to-Rail Input Voltage Range
Low 350μA Supply Current per Comparator
● Low, 1mV Offset Voltage
● Internal Hysteresis for Clean Switching
● Outputs Swing 200mV of Power Rails
● CMOS/TTL-Compatible Outputs
● Output Latch (MAX941 Only)
● Shutdown Function (MAX941 Only)
Ordering Information
PART
MAX941CPA
MAX941CSA
MAX941EPA
MAX941ESA
MAX941EUA-T
MAX941AUA-T
T = Tape and reel.
TEMP RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
PIN-
PACKAGE
8 PDIP
8 SO
8 PDIP
8 SO
8 µMAX
8 µMAX
Ordering Information continued at end of data sheet.
μMAX is a registered trademark of Maxim Integrated Products, Inc.
TOP VIEW
MAX941
V+ 1
IN+ 2
IN- 3
SHDN 4
8 N.C.
7 OUT
6 GND
5 LATCH
PDIP/SO/µMAX
MAX942
OUTA 1
INA- 2
INA+ 3
GND 4
A
8 V+
7 OUTB
6 INB-
B
5 INB+
PDIP/SO/µMAX
OUTA 1
INA- 2
INA+ 3
V+ 4
INB+ 5
INB- 6
OUTB 7
14 OUTD
AD
MAX944
13 IND-
12 IND+
11 GND
10 INC+
BC
9 INC-
8 OUTC
PDIP/SO
19-0229; Rev 10; 9/14


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX942 Datasheet

Single-Supply Comparators

No Preview Available !

MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
Absolute Maximum Ratings
Power-Supply Ranges
8-Pin μMAX (derate 4.1mW/°C above +70°C).............330mW
Supply Voltage V+ to GND..............................................+6.5V
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)...800mW
Differential Input Voltage..........................-0.3V to (V+ + 0.3V)
14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW
Common-Mode Input Voltage...................-0.3V to (V+ + 0.3V)
Operating Temperature Ranges
LATCH Input (MAX941 only)....................-0.3V to (V+ + 0.3V)
MAX94_C_ _.......................................................0°C to +70°C
SHDN Control Input (MAX941 only) .........-0.3V to (V+ + 0.3V)
MAX94_E_ _................................................... -40°C to +85°C
Current Into Input Pins......................................................±20mA
MAX94_AUA.................................................. -40°C to +125°C
Continuous Power Dissipation (TA = +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C)...727mW
MAX942MSA................................................. -55°C to +125°C
Storage Temperature Range............................. -65°C to +150°C
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
Lead Temperature (soldering, 10s).................................. +300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(V+ = 2.7V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 14)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Positive Supply Voltage
V+
2.7 5.5 V
Input Voltage Range
Input-Referred Trip
Points
VCMR
VTRIP
(Note 1)
VCM =
0V or
VCM = V+
(Note 2)
TA = +25°C
TA = TMIN
to TMAX
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA
MAX941_UA/MAX942_UA
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA
MAX941_UA/MAX942_UA
-0.2
V+ + 0.2
13
14
4
6
V
mV
mV
Input Offset Voltage
VOS
VCM =
0V or
VCM = V+
(Note 3)
TA = +25°C
TA = TMIN
to TMAX
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA
MAX941_UA/MAX942_UA
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA
MAX941_UA/MAX942_UA
12
mV
13
3
mV
5.5
Input Bias Current
Input Offset Current
Input Differential Clamp
Voltage
Common-Mode Rejection
Ratio
Power-Supply Rejection
Ratio
IB
IOS
VCLAMP
CMRR
PSRR
VIN = VOS, VCM = 0V or MAX94_C
VCM = V+ (Note 4)
MAX94_E/A, MAX942MSA
VIN = VOS, VCM = 0V or V+
Force 100μA into IN+, IN- = GND,
measure VIN+ - VIN-, Figure 3
MAX94_C_ _, MAX94_EP_,
(Note 5)
MAX94_ES_, MAX942MSA
MAX941_UA/MAX942_UA
2.7V ≤ V+ ≤ 5.5V,
VCM = 0V
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA
MAX941_UA/MAX942_UA
150 300
150 400
10 150
2.2
nA
nA
V
80 300
μV/V
80 800
80 300
μV/V
80 350
Output High Voltage
Output Low Voltage
Output Leakage Current
VOH
VOL
ILEAK
ISOURCE = 400μA
ISOURCE = 4mA
ISINK = 400μA
ISINK = 4mA
(Note 6)
V+ - 0.4
V+ - 0.4
V+ - 0.2
V+ - 0.3
0.2
0.3
0.4
0.4
1
V
V
µA
www.maximintegrated.com
Maxim Integrated 2


Part Number MAX942
Description Single-Supply Comparators
Maker Maxim
PDF Download

MAX942 Datasheet PDF





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