ADCMP343 Analog Devices, ADCMP343 Datasheet

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ADCMP343

Manufacturer Part Number
ADCMP343
Description
(ADCMP341 / ADCMP343) Dual Comparators
Manufacturer
Analog Devices
Datasheet

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Part Number:
ADCMP343YRJZ-REEL7
Manufacturer:
ADI/亚德诺
Quantity:
20 000
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Preliminary Technical Data
FEATURES
Low Quiescent Current: 6.5µA Typ
Supply Range: 1.7V to 5.5V
400mV Reference ±0.8% Accuracy Over Temperature
Input Range Includes Ground
User programmable Hysteresis via resistor string
Low Input Bias Current: ±10nA Max
Open drain outputs with 40mA Typical Sink Current
Supports Wired-AND Connections
Input Polarities:
Small SOT-23 Package
APPLICATIONS
Battery-Powered System Monitoring
Threshold Detectors
Relay Driving
Optoisolator Driving
Handheld Instruments
GENERAL DESCRIPTION
The ADCMP341/ADCMP343 combine two low power, low
voltage comparators with a 400mV reference in the 5-lead
SOT-23 package. Operating within a supply range of 1.7V to
5.5V, the devices only draw 6.5µA typical, making them ideal
for low voltage system monitoring and portable applications.
Hysteresis is determined using three resistors in a string
configuration with the upper and lower tap points connected to
the INA_U and INA_L pins of each comparator respectively.
The state of the comparators output internally selects which pin
is connected to the comparator inputs. So a change of state in
the comparator output will result in one of the inputs being
switched in to the comparator and the other being switched
out. This will provide the user with a fully flexible and simple
method of setting the hysteresis. Although there are two pins
available on each comparator, there is only actually one input
available externally at any one time, the other inputs are
connected internally to the reference.
The comparator outputs are open drain with the output stage
sinking capability guaranteed greater than 5mA over
temperature. The ADCMP341 have noninverting inputs and
the ADCMP343 have inverting inputs. Available in
commercial, industrial and automotive temperature ranges.
Rev. PrD
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
ADCMP341 noninverting
ADCMP343 inverting
Dual Comparators with 400mV Reference
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
and programmable Hysteresis
VINA
VINB
VINA
VINB
FUNCTIONAL BLOCK DIAGRAM
INA_U
INA_L
INB_U
INB_L
INA_U
INB_U
INA_L
INB_L
ADCMP341/ADCMP343
©2006 Analog Devices, Inc. All rights reserved.
Figure 1
400mV
400mV
GND
GND
V
V
S
S
ADCMP341
ADCMP343
www.analog.com
OUTA
OUTA
OUTB
OUTB

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ADCMP343 Summary of contents

Page 1

... Relay Driving Optoisolator Driving Handheld Instruments GENERAL DESCRIPTION The ADCMP341/ADCMP343 combine two low power, low voltage comparators with a 400mV reference in the 5-lead SOT-23 package. Operating within a supply range of 1.7V to 5.5V, the devices only draw 6.5µA typical, making them ideal for low voltage system monitoring and portable applications. ...

Page 2

... ADCMP341/ADCMP343 TABLE OF CONTENTS Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 Pin Configuration and Function Descriptions............................. 5 Typical Performance Characteristics ............................................. 6 REVISION HISTORY Preliminary Technical Data Applications INFORMATION ..................................................... 11 Comparators and Internal reference........................................ 11 programming Hysteresis ........................................................... 11 Outline Dimensions ....................................................................... 12 Ordering Guide .......................................................................... 12 Rev. PrD | Page ...

Page 3

... Rev. PrD | Page ADCMP341/ADCMP343 Test Conditions/Comments Vs = 1.7V, Note1 Vs = 5V, Note1 Vs = 1.7V, Note1 Vs = 5V, Note1 Vs = 1.7V, Vin = 1.7V, Vin = 0. 1.7V, Iout = 3mA, Note2 Vs = 5V, Iout = 5mA, Note2 Vs=1.7V, Vout = Vs, Note3 Vs=1.7V, Vout = 5.5V, Note3 Vs = 5V, Vol = 400mV, Note2 5V, Voh = 0.9 X Vs, Note2 5V ...

Page 4

... ADCMP341/ADCMP343 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 2. . Parameter V s INx OUTx Operating Temperature Range Storage Temperature Range θ Thermal Impedance, SC70 JA Lead Temperature Soldering (10 sec) Vapor Phase (60 sec) Infrared (15 sec) ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection ...

Page 5

... INB_U Monitors Analog Input Voltage on comparator B. Connect to the upper tap point of the resistor string. Connected internally to the noninverting input on the ADCMP341 or the inverting pin on the ADCMP343 via mux controlled by output level on comparator B. The other input of comparator B is connected to a 400mV reference. ...

Page 6

... ADCMP341/ADCMP343 TYPICAL PERFORMANCE CHARACTERISTICS Figure 3. Distribution of Rising Input Threshold Voltage Figure 4. ??? Figure 5.Rising Input Threshold Voltage vs Temperature Preliminary Technical Data Figure 6. Distribution of Falling Input Threshold Voltage Figure 7. Rising Input Threshold Voltage vs Temperature Figure 8.Rising Input Threshold Voltage vs Supply Voltage Rev. PrD | Page ...

Page 7

... Preliminary Technical Data Figure 9. ???e Figure 10. ??? Figure 11. Quiescent Supply Current vs Supply Voltage Figure 13. Minimum Supply Voltage Figure 14. Startup Supply Current Rev. PrD | Page ADCMP341/ADCMP343 Figure 12. ??? ...

Page 8

... ADCMP341/ADCMP343 Figure 15. Supply Current vs Output Sink Current Figure 16 Supply Current vs Output Sink Current Figure 17. Supply Current vs Output Sink Current Preliminary Technical Data Figure 18. Below Ground Input Bias Current Figure 19. Low Level Input Bias Current Figure 20 High Level Input Bias Current Rev. PrD | Page ...

Page 9

... Preliminary Technical Data Figure 21. Output Saturation Voltage vs Output Sink Current Figure 22 Output Saturation Voltage vs Output Sink Current Figure 23. Output Saturation Voltage vs Output Sink Current Figure 24. Output Short Circuit Current Figure 25. Output Short Circuit Current Figure 26. Output Leakage current Rev. PrD | Page ADCMP341/ADCMP343 ...

Page 10

... ADCMP341/ADCMP343 Figure 27. Propagation Delay vs Input Overdrive Figure 28.Non Inverting and Inverting comparators Propagation Delay Figure 29. Rise and Fall Times vs Output Pullup Resistor Preliminary Technical Data Rev. PrD | Page ...

Page 11

... Each of the comparators has one input available externally, the other comparator inputs are connected internally to the 400mV reference. The ADCMP341 has two noninverting comparators and the ADCMP343 has two inverting comparators. There are two input pins available to each comparator. However, these two input pins(INx_U, INx_U) connect to the same input leg of the comparator via a muxing system ...

Page 12

... ADCMP341/ADCMP343 OUTLINE DIMENSIONS 1.60 BSC PIN 1 INDICATOR 1.30 1.15 0.90 0.15 MAX Figure 31. . 8-Lead SOT-23 Package (RJ-8)—Dimensions shown in millimeters ORDERING GUIDE Table 4. Model Temperature Range ADCMP341ARJ –40°C to +125°C ADCMP343ARJ –40°C to +125°C 2.90 BSC 2.80 BSC 0.65 BSC 1.95 BSC 1.45 MAX 0.22 0.08 0.38 SEATING 0.22 PLANE ...

Page 13

... Preliminary Technical Data NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. PR06154-0-6/06(PrD) Rev. PrD | Page ADCMP341/ADCMP343 ...

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