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PDF MAX990EUA Data sheet ( Hoja de datos )
| Número de pieza | MAX990EUA | |
| Descripción | Micropower / Low-Voltage / SOT23 / Rail-to-Rail I/O Comparators | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX990EUA (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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19-1229; Rev 1; 7/97
Micropower, Low-Voltage, SOT23,
Rail-to-Rail I/O Comparators
_______________General Description
The MAX985/MAX986/MAX989/MAX990/MAX993/
MAX994 single/dual/quad micropower comparators
feature low-voltage operation and Rail-to-Rail® inputs
and outputs. Their operating voltage ranges from +2.5V
to +5.5V, making them ideal for both 3V and 5V sys-
tems. These comparators also operate with ±1.25V to
±2.75V dual supplies. They consume only 11µA of sup-
ply current while achieving a 300ns propagation delay.
The common-mode input voltage range extends 250mV
beyond the supply rails. Input bias current is typically
1.0pA, and input offset voltage is typically 0.5mV.
Internal hysteresis ensures clean output switching,
even with slow-moving input signals.
The output stage’s unique design limits supply-current
surges while switching, virtually eliminating the supply
glitches typical of many other comparators. This design
also minimizes overall power consumption under
dynamic conditions. The MAX985/MAX989/MAX993
have a push/pull output stage that sinks as well as
sources current. Large internal output drivers allow rail-
to-rail output swing with loads up to 8mA. The
MAX986/MAX990/MAX994 have an open-drain output
stage that can be pulled beyond VCC to 6V (max)
above VEE. These open-drain versions are ideal for
level translators and bipolar to single-ended converters.
The single MAX985/MAX986 are available in tiny 5-pin
SOT23 packages.
_____________________Selector Guide
PART
COMPARATORS
PER PACKAGE
MAX985
1
OUTPUT
STAGE
Push/Pull
MAX986
MAX989
MAX990
MAX993
MAX994
1
2
2
4
4
Open-Drain
Push/Pull
Open-Drain
Push/Pull
Open-Drain
PIN-
PACKAGE
8 SO/
5 SOT23-5
8 SO/
5 SOT23-5
8 SO/µMAX
8 SO/µMAX
14 SO
14 SO
________________________Applications
Portable/Battery-
Powered Systems
Mobile Communications
Zero-Crossing Detectors
Window Comparators
Level Translators
Threshold Detectors/
Discriminators
Ground/Supply Sensing
Applications
IR Receivers
Digital Line Receivers
____________________________Features
o 11µA Quiescent Supply Current
o +2.5V to +5.5V Single-Supply Operation
o Common-Mode Input Voltage Range Extends
250mV Beyond the Rails
o 300ns Propagation Delay
o Push/Pull Output Stage Sinks and Sources
8mA Current (MAX985/MAX989/MAX993)
o Open-Drain Output Voltage Extends Beyond VCC
(MAX986/MAX990/MAX994)
o Unique Output Stage Reduces Output Switching
Current, Minimizing Overall Power Consumption
o 80µA Supply Current at 1MHz Switching
Frequency
o No Phase Reversal for Overdriven Inputs
o Available in Space-Saving Packages:
SOT23 (MAX985/MAX986)
µMAX (MAX989/MAX990)
______________Ordering Information
PART
TEMP. RANGE
PIN-
PACKAGE
SOT
TOP MARK
MAX985EUK-T -40°C to +85°C 5 SOT23-5
ABYZ
MAX985ESA -40°C to +85°C 8 SO
—
MAX986EUK-T -40°C to +85°C 5 SOT23-5
ABZA
MAX986ESA -40°C to +85°C 8 SO
—
Ordering Information continued at end of data sheet.
Typical Application Circuit appears at end of data sheet.
_________________Pin Configurations
TOP VIEW
OUT 1
VCC 2
MAX985
MAX986
5 VEE
IN+ 3
4 IN-
SOT23
Pin Configurations continued at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
________________________________________________________________ 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  
Micropower, Low-Voltage, SOT23,
Rail-to-Rail I/O Comparators
____________________________Typical Operating Characteristics (continued)
(VCC = 5V, VCM = 0V, TA = +25°C, unless otherwise noted.)
PROPAGATION DELAY
vs. TEMPERATURE
450
VOD = 50mV
440
430
TO VOUT = 50% POINT
420 OF FINAL VALUE
410
TO VOUT = 10% POINT
400 OF FINAL VALUE
390
380
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
900
800
700
600
500
400
300
200
100
0
0
PROPAGATION DELAY
vs. INPUT OVERDRIVE
VCC = 2.7V
VCC = 5.0V
40 80 120 160
INPUT OVERDRIVE (mV)
200
MAX985/MAX989/MAX993
PROPAGATION DELAY (tPD+)
MAX985-11
PROPAGATION DELAY (tPD-)
MAX985-12
MAX985/MAX989/MAX993
SWITCHING CURRENT, OUT RISING
MAX985-13
50mV/
IN+ div
IN+
50mV/
div
IN+
50mV/
div
2V/div
OUT
OUT
VOD = 50mV
100ns/div
2V/div
OUT
VOD = 50mV
100ns/div
2V/div
ICC
VOD = 50mV
100ns/div
1mA/div
SWITCHING CURRENT, OUT FALLING
MAX985-14
IN+
OUT
IN+
50mV/
div
2V/div
1MHz RESPONSE
MAX985-15
50mV/
div
VCC
POWER-UP DELAY
MAX985-16
ICC
VOD = 50mV
100ns/div
OUT
1mA/div
VOD = 50mV
200ns/div
2V/div OUT
VIN- = 50mV
VIN+ = 0V
5µs/div
_______________________________________________________________________________________ 5
5 Page 
Micropower, Low-Voltage, SOT23,
Rail-to-Rail I/O Comparators
________________________________________________________Package Information
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX990EUA.PDF ] | |
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