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PDF MAX942 Data sheet ( Hoja de datos )
| Número de pieza | MAX942 | |
| Descripción | High-Speed / Low-Power / 3V/5V / Rail-to-Rail Single-Supply Comparators | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX942 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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19-0229; Rev 3; 6/97
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 pow-
ered 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 pull-up 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 fea-
tures 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 pack-
ages.
________________________Applications
3V/5V Systems
Battery-Powered Systems
Threshold Detectors/Discriminators
Line Receivers
Zero-Crossing Detectors
Sampling Circuits
____________________________Features
o Available in µMAX Package
o Optimized for 3V and 5V Applications
(operation down to 2.7V)
o Fast, 80ns Propagation Delay (5mV overdrive)
o Rail-to-Rail Input Voltage Range
o Low Power:
1mW Power Dissipation per Comparator (3V)
350µA Supply Current
o Low, 1mV Offset Voltage
o Internal Hysteresis for Clean Switching
o Outputs Swing 200mV of Power Rails
o CMOS/TTL-Compatible Outputs
o Output Latch (MAX941 only)
o Shutdown Function (MAX941 only)
______________Ordering Information
PART
MAX941CPA
MAX941CSA
MAX941C/D
MAX941EPA
MAX941ESA
MAX941EUA
MAX941MJA
TEMP. RANGE
0°C to +70°C
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
-55°C to +125°C
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 µMAX
8 CERDIP
Ordering Information continued at end of data sheet.
* Dice are specified at TA = +25°C, DC parameters only.
__________________________________________________________Pin Configurations
TOP VIEW
MAX941
V+ 1
IN+ 2
IN- 3
SHDN 4
8 N.C.
7 OUT
6 GND
5 LATCH
DIP/SO/µMAX
MAX942
OUTA 1
INA- 2
INA+ 3
GND 4
A
8 V+
7 OUTB
6 INB-
B
5 INB+
DIP/SO/µMAX
OUTA 1
INA- 2
INA+ 3
V+ 4
INB+ 5
INB- 6
OUTB 7
14 OUTD
13 IND-
AD
12 IND+
MAX944
BC
11 GND
10 INC+
9 INC-
8 OUTC
DIP/SO
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
1 page  
High-Speed, Low-Power, 3V/5V,
Rail-to-Rail Single-Supply Comparators
____________________________Typical Operating Characteristics (continued)
(V+ = 3.0V, TA = +25°C, unless otherwise noted.)
MAX944 TOTAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE
2.00
1.75 TA = +125°C
INPUT VOLTAGE RANGE
vs. TEMPERATURE
4
V+ = 3.0V
VCM+
3
1.50
TA = +25°C
1.25
2
1
1.00
TA = -55°C
0.75
2
34
5
SUPPLY VOLTAGE (V)
6
VOLTAGE TRIP POINTS / INPUT
OFFSET VOLTAGE vs. TEMPERATURE
1000
VTRIP+
500
0
-500
-1000
VOS
VTRIP-
-1500
VCM = 0.0V
-2000
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
0
VCM-
-1
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
INPUT BIAS CURRENT / INPUT OFFSET
CURRENT vs. TEMPERATURE
250
200
IB+
150
IB-
100
50
IOS
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
MAX941 SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
40
V+ = 6.0V
30
VOS
SHORT-CIRCUIT OUTPUT CURRENT
vs. TEMPERATURE
40
OUTPUT SHORTED
TO V+ (SINKING)
30
20
10 OUTPUT SHORTED
TO GND (SOURCING)
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
INPUT BIAS CURRENT
(IB+, IB-) vs. VCM
250
TA = -55°C
200 TA = +25°C
VIN+ = VIN-
NEGATIVE VALUES
REPRESENT CURRENT
150 FLOWING INTO THE
TA = +125°C DEVICE
100
50
0 V+ = 6V
-50
-100
0
1 2 345
COMMON-MODE VOLTAGE (V)
6
10MHz RESPONSE
INPUT
50mV/div
20
V+ = 2.7V
10
V+
OUTPUT
1V/div
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
GND
50ns/div
_______________________________________________________________________________________ 5
5 Page 
High-Speed, Low-Power, 3V/5V,
Rail-to-Rail Single-Supply Comparators
________________________________________________________Package Information
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX942.PDF ] | |
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