AD ADCMP670 Dual comparators with 400mv reference Datasheet

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
Internal Hysteresis: 6.5mV Typ
Low Input Bias Current: ±10nA Max
40mA Typical Output Sink Current
Supports Wired-AND Connections
Input Polarities: One inverting and one noninverting
Low Profile (1mm) TSOT Package
APPLICATIONS
Battery-Powered System Monitoring
Threshold Detectors
Window Comparators
Relay Driving
Optoisolator Driving
Industrial Control Systems
Handheld Instruments
Dual Comparators
with 400mV Reference
ADCMP670
FUNCTIONAL BLOCK DIAGRAM
VCC
ADCMP670-1
+INA
OUTA
400mV
OUTB
-INB
GND
Figure 1.
GENERAL DESCRIPTION
The ADCMP670 combine two low power, low voltage
comparators with a 400mV reference in the 6-lead TSOT
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 included in the comparators to insure stable
output operation. Each comparator has only one input available
externally, the other inputs are connected internally to the
reference. The comparator outputs are open collector and the
output load can be referred to any voltage up to supply voltage.
The output stage sinking capability guaranteed greater than
5mA over temperature.
The ADCMP670 has one inverting input and one noninverting input, making it suitable for use as a window
comparator. Available in commercial, industrial and
automotive temperature ranges.
Rev. PrB
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
Preliminary Technical Data
ADCMP670
TABLE OF CONTENTS
Specifications..................................................................................... 3
Applications INFORMATION ..................................................... 12
Absolute Maximum Ratings............................................................ 5
Comparators and Internal reference........................................ 12
ESD Caution.................................................................................. 5
Adding Hysteresis....................................................................... 12
Pin Configuration and Function Descriptions............................. 6
Outline Dimensions ....................................................................... 13
Typical Performance Characteristics ............................................. 7
Ordering Guide .......................................................................... 13
REVISION HISTORY
Rev. PrB | Page 2 of 14
Preliminary Technical Data
ADCMP670
SPECIFICATIONS
Table 1.
VCC = 1.7V to 5.5V, TA = 25°C , unless otherwise noted.
Parameter
Rising Input Threshold Voltage
High-to-Low Propagation Delay
Low-to-High Propagation Delay
Output Rise time
Typ
400
400
393.5
393.5
6.5
0.01
4
60
70
0.01
0.01
29
18
2.2
Output Fall time
0.22
Falling Input Threshold Voltage
Hysteresis = VTH(R) – VTH(F)
Input Bias Current
Min
TBD
TBD
TBD
TBD
TBD
Output Low Voltage
Output Leakage Current
Supply Current
Max
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
Unit
mV
mV
mV
mV
mV
nA
nA
mV
mV
µA
µA
µs
µs
µs
µs
TBD
TBD
µA
µA
Test Conditions/Comments
Vs = 1.7V, Note1
Vs = 5V, Note1
Vs = 1.7V, Note1
Vs = 5V, Note1
Note1
Vs = 1.7V, Vin = Vs
Vs = 1.7V, Vin = 0.1V
Vs = 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, Note2,4
Vs = 5V, Voh = 0.9 X Vs, Note2,4
Vs = 5V, Vo = (0.1 to 0.9) X Vs,
Note2,4
Vs = 5V, Vo = (0.1 to 0.9) X Vs,
Note2,4
Vs = 1.7V
Vs = 5.5V
Table 2
VCC = 1.7V to 5.5V, 0°C ≤ TA ≤ 70°C , unless otherwise noted.
Parameter
Rising Input Threshold Voltage
Falling Input Threshold Voltage
Hysteresis = VTH(R) – VTH(F)
Input Bias Current
Min
TBD
TBD
TBD
TBD
TBD
Typ
Output Low Voltage
Output Leakage Current
Supply Current
Rev. PrB | Page 3 of 14
Max
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
Unit
mV
mV
mV
mV
mV
nA
nA
mV
mV
µA
µA
µA
µA
Test Conditions/Comments
Vs = 1.7V, Note1
Vs = 5V, Note1
Vs = 1.7V, Note1
Vs = 5V, Note1
Note1
Vs = 1.7V, Vin = Vs
Vs = 1.7V, Vin = 0.1V
Vs = 1.7V, Iout = 3mA, Note2
Vs = 5V, Iout = 5mA, Note2
Vs=1.7V, Vout = Vs, Note3
Vs=1.7V, Vout = 5.5V, Note3
Vs = 1.7V
Vs = 5.5V
Preliminary Technical Data
ADCMP670
Table 3
VCC = 1.7V to 5.5V, -40°C ≤ TA ≤ 85°C , unless otherwise noted.
Parameter
Rising Input Threshold Voltage
Falling Input Threshold Voltage
Hysteresis = VTH(R) – VTH(F)
Input Bias Current
Min
TBD
TBD
TBD
TBD
TBD
Typ
Output Low Voltage
Output Leakage Current
Supply Current
Max
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
Unit
mV
mV
mV
mV
mV
nA
nA
mV
mV
µA
µA
µA
µA
Test Conditions/Comments
Vs = 1.7V, Note1
Vs = 5V, Note1
Vs = 1.7V, Note1
Vs = 5V, Note1
Note1
Vs = 1.7V, Vin = Vs
Vs = 1.7V, Vin = 0.1V
Vs = 1.7V, Iout = 3mA, Note2
Vs = 5V, Iout = 5mA, Note2
Vs=1.7V, Vout = Vs, Note3
Vs=1.7V, Vout = 5.5V, Note3
Vs = 1.7V
Vs = 5.5V
Table 4
VCC = 1.7V to 5.5V, -40°C ≤ TA ≤ 125°C , unless otherwise noted.
Parameter
Rising Input Threshold Voltage
Falling Input Threshold Voltage
Hysteresis = VTH(R) – VTH(F)
Input Bias Current
Min
TBD
TBD
TBD
TBD
TBD
Typ
Output Low Voltage
Output Leakage Current
Supply Current
Note1: RL=100K, VO=2V Swing
Note2: 10mV input overdrive
Note3: Vin = 40mV overdrive
Note4: RL=10K
Note5: No load
Rev. PrB | Page 4 of 14
Max
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
Unit
mV
mV
mV
mV
mV
nA
nA
mV
mV
µA
µA
µA
µA
Test Conditions/Comments
Vs = 1.7V, Note1
Vs = 5V, Note1
Vs = 1.7V, Note1
Vs = 5V, Note1
Note1
Vs = 1.7V, Vin = Vs
Vs = 1.7V, Vin = 0.1V
Vs = 1.7V, Iout = 3mA, Note2
Vs = 5V, Iout = 5mA, Note2
Vs=1.7V, Vout = Vs, Note3
Vs=1.7V, Vout = 5.5V, Note3
Vs = 1.7V
Vs = 5.5V
Preliminary Technical Data
ADCMP670
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 5.
Parameter
Vs
INx
OUTx
Operating Temperature Range
Storage Temperature Range
θJA Thermal Impedance, SC70
Lead Temperature
Soldering (10 sec)
Vapor Phase (60 sec)
Infrared (15 sec)
Rating
−0.3V to +6V
−0.3V to +6V
−0.3V to +6V
−40°C to +125°C
−65°C to +150°C
146°C/W
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or
any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
300°C
215°C
220°C
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. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. PrB | Page 5 of 14
Preliminary Technical Data
ADCMP670
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
OUTA 1
6
OUTB
GND
2 ADCMP670-1 5
Vs
+INA
3
-INB
4
Figure 2. Pin Configuration
Table 6. Pin Function Descriptions
Pin No.
1
2
3
Mnemonic
OUTA
GND
+INA
4
-INB
5
6
Vs
OUTB
Description
Open Drain Output for comparator A. Capable of sinking up to 40mA of current.
Ground.
Monitors Analog Input Voltage on comparator A. Connected to noninverting input. The other input of
comparator A is connected to a 400mV reference.
Monitors Analog Input Voltage on comparator B. Connected to inverting input. The other input of
comparator B is connected to a 400mV reference.
Power Supply. Operates from 1.7V to 5.5V.
Open Drain Output for comparator B. Capable of sinking up to 40mA of current.
Rev. PrB | Page 6 of 14
Preliminary Technical Data
ADCMP670
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 3. Distribution of Rising Input Threshold Voltage
Figure 6. Distribution of Falling Input Threshold Voltage
Figure 4. Distribution of Hysteresis
Figure 7. Rising Input Threshold Voltage vs Temperature
Figure 5.Rising Input Threshold Voltage vs Temperature
Figure 8.Rising Input Threshold Voltage vs Supply Voltage
Rev. PrB | Page 7 of 14
Preliminary Technical Data
ADCMP670
Figure 9. Hysteresis vs Temperature
Figure 12. Hysteresis vs Temperature
Figure 10. Hysteresis vs Supply Voltage
Figure 13. Minimum Supply Voltage
Figure 11. Quiescent Supply Current vs Supply Voltage
Figure 14. Startup Supply Current
Rev. PrB | Page 8 of 14
Preliminary Technical Data
ADCMP670
Figure 15. Supply Current vs Output Sink Current
Figure 18. Below Ground Input Bias Current
Figure 16 Supply Current vs Output Sink Current
Figure 19. Low Level Input Bias Current
Figure 17. Supply Current vs Output Sink Current
Figure 20 High Level Input Bias Current
Rev. PrB | Page 9 of 14
Preliminary Technical Data
ADCMP670
Figure 21. Output Saturation Voltage vs Output Sink Current
Figure 24. Output Short Circuit Current
Figure 22 Output Saturation Voltage vs Output Sink Current
Figure 25. Output Short Circuit Current
Figure 23. Output Saturation Voltage vs Output Sink Current
Figure 26. Output Leakage current
Rev. PrB | Page 10 of 14
Preliminary Technical Data
ADCMP670
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
Rev. PrB | Page 11 of 14
Preliminary Technical Data
ADCMP670
APPLICATIONS INFORMATION
The ADCMP670 is a dual low power comparators with a build
in 400mV reference that operates from 1.7V to 5.5V. The
comparators are approx 0.8% accurate with a built in hysteresis
of approx 6.5mV. The outputs are open drain capable of sinking
40mA
COMPARATORS AND INTERNAL REFERENCE
Each of the comparators has one input available externally,
comparator A has a noninverting input and comparator B has
an inverting input available. The other comparator inputs are
connected internally to the 400mV reference. The rising input
threshold voltage of the comparators is designed to be equal to
that of the reference (i.e.≈400mV).
ADDING HYSTERESIS
To prevent oscillations at the output caused by noise or slowly
moving signals passing the switching threshold, each
comparator has built-in hysteresis of approximately 6.5mV.
Positive feedback can be used to adjust hysteresis to the
noninverting comparators.
Rev. PrB | Page 12 of 14
Preliminary Technical Data
ADCMP670
OUTLINE DIMENSIONS
2 .90 BSC
6
5
4
1
2
3
2 .80 BSC
1.60 BSC
PIN 1
0 .9 5 BSC
0 .9 0
0 .8 7
0 .8 4
1.9 0
BSC
1.00 MAX
0 .1 0 MAX
0 .50
0 .30
0.2 2
0.0 8
SEATING
PLANE
10 °
4°
0°
0.60
0.45
0.30
Figure 2. 6-Lead TSOT Package (UJ-6)—Dimensions shown in millimeters
ORDERING GUIDE
Model
ADCMP670-1AUJ
Temperature Range
–40°C to +125°C
Package Description
TSOT, 6 lead
Rev. PrB | Page 13 of 14
Branding
Package Outline
UJ-6
ADCMP670
Preliminary Technical Data
NOTES
© 2006 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
PR06153-0-5/06(PrB)
Rev. PrB | Page 14 of 14
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