AD ADCMP354YKSZ-REEL7 Comparators and reference circuit Datasheet

Comparators and Reference Circuits
ADCMP350/ADCMP354/ADCMP356
FEATURES
FUNCTIONAL BLOCK DIAGRAM
VCC
ADCMP350
REF
OUT (OD)
VIN
05112-001
Comparators with 0.6 V on-chip references
Output stages
Open-drain active low (ADCMP350)
Open-drain active high (ADCMP354)
Push-pull active high (ADCMP356)
High voltage (up to 22 V) tolerance on VIN and open-drain
output pins
Low power consumption: 10 µA
10 nA input bias current
15 mV hysteresis
5 µs propagation delay
Specified over −40°C to +125°C temperature range
4-lead SC70 package
GND
Figure 1. ADCMP350 Functional Block Diagram
VCC
ADCMP354/ADCMP356
VIN
OUT (OD/PP)
REF
Voltage detectors
Microprocessor systems
Computers
Battery monitors
Intelligent instruments
Portable equipment
05112-021
APPLICATIONS
GND
Figure 2. ADCMP354/ADCMP356 Functional Block Diagram
GENERAL DESCRIPTION
The ADCMP350/ADCMP354/ADCMP356 are comparator and
reference circuits suitable for use in general-purpose applications.
The high voltage input and output structures allow voltages of
up to 22 V on the input of all devices and the output of the opendrain devices. High performance over the −40°C to +125°C
temperature range makes them suitable for use in automotive
and other thermally harsh applications, while low power
consumption and space-efficient SC70 packaging make
them ideal for battery-powered portable equipment.
Table 1. Selection Table
Part No.
ADCMP350
ADCMP354
ADCMP356
Reference
Voltage (V)
0.6
0.6
0.6
Input
Connection
Inverting
Noninverting
Noninverting
Output
Open-drain
Open-drain
Push-pull
Rev. B
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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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
www.analog.com
Tel: 781.329.4700
Fax: 781.461.3113 ©2004–2011 Analog Devices, Inc. All rights reserved.
ADCMP350/ADCMP354/ADCMP356
TABLE OF CONTENTS
Features .............................................................................................. 1
Pin Configuration and Function Descriptions..............................5
Applications ....................................................................................... 1
Typical Performance Characteristics ..............................................6
Functional Block Diagram .............................................................. 1
Applications Information .................................................................9
General Description ......................................................................... 1
Adding Hysteresis..........................................................................9
Revision History ............................................................................... 2
Voltage Detector ............................................................................9
Specifications..................................................................................... 3
Outline Dimensions ....................................................................... 10
Absolute Maximum Ratings ............................................................ 4
Ordering Guide .......................................................................... 10
ESD Caution .................................................................................. 4
REVISION HISTORY
4/11—Rev. A to Rev. B
Deleted ADCMP352 .......................................................... Universal
Changes to Adding Hysteresis Section, Figure 20, and
Figure 21 ............................................................................................ 9
11/09—Rev. 0 to Rev. A
Changes to Ordering Guide .......................................................... 10
10/04—Revision 0: Initial Version
Rev. B | Page 2 of 12
ADCMP350/ADCMP354/ADCMP356
SPECIFICATIONS
VCC = full operating range, TA = −40°C to +125°C, unless otherwise noted.
Table 2.
Parameter
SUPPLY
VCC Operating Voltage Range
VIN Operating Voltage Range
Supply Current
VIN THRESHOLD RISING
VIN THRESHOLD FALLING
Min
2.25
0
0.579
0.579
0.564
0.564
INPUT BIAS CURRENT
THRESHOLD TEMPERATURE COEFFICIENT
VIN TO OUT DELAY
OUT VOLTAGE LOW
OUT VOLTAGE HIGH
OUTPUT RISE TIME
OUTPUT FALL TIME
OUTPUT LEAKAGE CURRENT
Typ
10
0.6
0.6
0.585
0.585
10
170
30
5
Max
Unit
5.5
22
15
0.621
0.624
0.606
0.609
V
V
µA
V
V
V
V
nA
µA
ppm/°C
µs
V
V
0.4
0.8 × VCC
30
45
1
Rev. B | Page 3 of 12
ns
ns
µA
Test Conditions/Comments
VCC = 3.3 V, TA = −40°C to +85°C
VCC = 3.3 V, TA = −40°C to +125°C
VCC = 3.3 V, TA = −40°C to +85°C
VCC = 3.3 V, TA = −40°C to +125°C
VIN = 0.6 V
VIN = 22 V
VIN = VTH to (VTH − 100 mV)
VIN < VTH minimum, ISINK = 1.2 mA
VIN > VTH maximum, ISOURCE = 500 µA,
Push-pull only
COUT = 15 pF
COUT = 15 pF
OUT = 22 V, open-drain only
ADCMP350/ADCMP354/ADCMP356
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 3.
Parameter
VCC
VIN
OUT (Open-Drain)
OUT (Push-Pull)
Operating Temperature Range
Storage Temperature Range
θJA Thermal Impedance, SC70
Lead Temperature
Soldering (10 sec)
Vapor Phase (60 sec)
Infrared (15 sec)
Rating
−0.3 V to +6 V
−0.3 V to +25 V
−0.3 V to +25 V
−0.3 V to (VCC + 0.3 V)
−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; 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.
ESD CAUTION
300°C
215°C
220°C
Rev. B | Page 4 of 12
ADCMP350/ADCMP354/ADCMP356
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
4 VCC
1
ADCMP350/
ADCMP354/
ADCMP356
GND 2
3 OUT
05112-002
VIN
Figure 3. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
1
2
3
4
Mnemonic
VIN
GND
OUT
VCC
Description
Monitors Analog Input Voltage. Connected to inverting or noninverting input depending on the model number.
Ground.
Digital Output. Open-drain or push-pull options depending on the model number.
Power Supply.
Rev. B | Page 5 of 12
ADCMP350/ADCMP354/ADCMP356
TYPICAL PERFORMANCE CHARACTERISTICS
20
11.0
18
10.5
TA +125°C
TA +85°C
16
TA +25°C
SUPPLY CURRENT (µA)
10.0
ICC (µA)
9.5
9.0
TA –40°C
8.5
8.0
14
12
10
8
6
4
7.5
05112-003
VCC (V)
0
0
180
660
160
640
140
620
VTRIP TRIP RISING
600
VTRIP TRIP FALLING
560
65
80
95
110
125
TEMPERATURE (°C)
TA = +125°C
0
2
4
6
8
10
12
14
16
18
20
22
VIN (V)
Figure 8. Input Leakage vs. Input Voltage (VIN)
1.0
18
0.9
16
0.8
12
10
8
6
0.7
0.6
TA = 25°C
0.5
0.4
0.3
4
0.2
2
0.1
–25
–10
5
20
35
50
65
80
95
TEMPERATURE (°C)
110
125
0
0
Figure 6. VIN Trip Hysteresis vs. Temperature
0.3
0.6
0.9
1.2
1.5
1.8
VIN (V)
2.1
2.4
2.7
3.0
Figure 9. VIN Leakage Current vs. VIN Voltage (VCC = 3.8 V)
Rev. B | Page 6 of 12
3.3
05112-019
VIN LEAKAGE (µA)
HYSTERESIS
05112-005
HYSTERESIS (mV)
22
60
20
0
–40
20
TA = +85°C
Figure 5. VIN Trip Threshold vs. Temperature (VCC = 3.3 V)
14
18
0
05112-004
50
16
TA = –40°C
40
35
14
80
20
20
12
100
520
5
10
TA = +25°C
120
540
–10
8
05112-007
IN LEAKAGE (µA)
VTRIP (mV)
200
680
–25
6
Figure 7. Supply Current vs. Input Voltage (VIN)
700
500
–40
4
VIN (V)
Figure 4. ICC vs. VCC over Temperature
580
2
05112-006
2
7.0
2.25 2.55 2.85 3.15 3.45 3.75 4.05 4.35 4.65 4.95 5.25 5.55
ADCMP350/ADCMP354/ADCMP356
10000
200
190
TA = +25°C
TA = +125°C
1000
OUTPUT VOLTAGE (mV)
180
IN LEAKAGE (µA)
170
160
150
140
TA = +85°C
TA = +25°C
TA = –40°C
130
TA = +85°C
100
TA = +125°C
TA = –40°C
10
1
120
05112-008
VCC (V)
0.1
0.01
0.1
10
1
OUTPUT SINK CURRENT (mA)
Figure 10. Input Leakage vs. Supply Voltage, VCC (VIN = 22 V)
05112-010
110
100
2.25 2.55 2.85 3.15 3.45 3.75 4.05 4.35 4.65 4.95 5.25 5.55
Figure 13. Output Voltage vs. Output Sink Current (ISINK = 500 mA)
700
120
680
OUTPUT LOW VOLTAGE (mV)
660
VTRIP (mV)
640
620
VTRIP RISING
600
580
VTRIP FALLING
560
540
100
80
60
40
20
VCC (V)
0
2.25 2.40 2.70 3.00 3.30 3.60 3.90 4.20 4.50 4.80 5.20 5.50
05112-009
500
2.25 2.55 2.85 3.15 3.45 3.75 4.05 4.35 4.65 4.95 5.25 5.55
SUPPLY VOLTAGE (V)
Figure 14. Output Low Voltage vs. Supply Voltage (ISINK = 500 mA)
200
18
180
16
160
14
140
FALL TIME (ns)
20
12
HYSTERESIS
10
8
120
100
80
6
60
4
40
2
20
RISE TIME
0
2.25 2.55 2.85 3.15 3.45 3.75 4.05 4.35 4.65 4.95 5.25 5.55
VCC (V)
0
2.25 2.40 2.70 3.00 3.30 3.60 3.90 4.20 4.50 4.80 5.20 5.50
SUPPLY VOLTAGE (V)
Figure 15. Fall Time vs. Supply Voltage
Figure 12. VIN Trip Hysteresis vs. VCC
Rev. B | Page 7 of 12
05112-012
FALL TIME
05112-020
HYSTERESIS (mV)
Figure 11. VIN Trip Threshold vs. VCC
05112-011
520
ADCMP350/ADCMP354/ADCMP356
100
1
80
CH1 = VIN
70
60
50
40
30
20
CH2 = VOUT
10
0
2.25 2.40 2.70 3.00 3.30 3.60 3.90 4.20 4.50 4.80 5.20 5.50
SUPPLY VOLTAGE (V)
CH1 20mV/DIV
CH2 1.00V/DIV
TIMEBASE: 10µs/DIV
05112-015
2
05112-013
SHORT-CIRCUIT SINK CURRENT (mA)
90
Figure 18. Propagation Delay Timing, 10 mV Overdrive
Figure 16. Short-Circuit Sink Current vs. Supply Voltage
(VCC = 3.3 V, Push-Pull Only)
25
PROPAGATION DELAY (µs)
20
1
CH1 = VIN
tPLH
15
10
tPHL
5
CH2 = VOUT
10
20
30
40
50
60
70
80
90
INPUT OVERDRIVE (mV)
100 110 120 130
CH1 100mV/DIV
05112-014
0
Figure 17. Propagation Delay vs. Input Overdrive (VCC = 3.3 V, Push-Pull Only)
Rev. B | Page 8 of 12
CH2 1.00V/DIV
TIMEBASE: 10µs/DIV
Figure 19. Propagation Delay Timing, 100 mV Overdrive
05112-016
2
ADCMP350/ADCMP354/ADCMP356
APPLICATIONS INFORMATION
ADDING HYSTERESIS
VOLTAGE DETECTOR
To prevent oscillations at the output caused by noise or slowly
moving signals passing the switching threshold, positive feedback
can be used to add hysteresis to the noninverting parts
(ADCMP354 and ADCMP356).
The ADCMP350/ADCMP354/ADCMP356 can be used to
monitor voltages, such as battery monitoring or threshold
detectors. Using a resistor divider at the input to select the
appropriate trip voltage, the comparator can be configured
to give a logic output when the input passes that threshold.
Figure 21 shows the typical configuration of the ADCMP354
for monitoring a supply to indicate that the voltage is above a
certain level.
For the noninverting configuration shown in Figure 20, two
resistors are used to create different switching thresholds,
depending on whether the input signal is increasing or decreasing
in magnitude. When the input voltage is increasing, the threshold is
above VREF, and when it is decreasing, the threshold is below VREF.
VCC = 5V
The upper input threshold level is given by
VIN_HI =
VREF (R1 + R2 + RPULLUP ) − VCC R1
ADCMP354
R2 + RPULLUP
VREF = 0.6V
R1
The lower input threshold level is given by
05112-023
R2
VREF (R1 + R2 )
R2
Figure 21. Voltage Detector Application
The hysteresis is the difference between these voltage levels and
is given by
∆VIN =
VCC R1
R2 + RPULLUP
VCC = 5V
ADCMP354
VREF = 0.6V
RPULLUP
OUT
RLOAD
R1
R2
05112-022
VIN
OUT
VIN
where VREF = 0.6 V, assuming RLOAD >> R2, RPULLUP
V IN_LO =
RPULLUP
Figure 20. Noninverting Comparator Configuration with Added Hysteresis
Rev. B | Page 9 of 12
ADCMP350/ADCMP354/ADCMP356
OUTLINE DIMENSIONS
2.20
1.80
4
1
0.65 BSC
3
2.40
1.80
2
0.50 BSC
1.00
0.80
0.40
0.10
1.10
0.80
0.10 MAX
COPLANARITY
0.10
0.30
0.15
*0.70
0.50
SEATING
PLANE
0.18
0.10
*PACKAGE OUTLINE CORRESPONDS IN FULL TO EIAJ SC82
EXCEPT FOR WIDTH OF PIN 2 AS SHOWN.
0.30
0.10
072809-A
1.35
1.15
Figure 22. 4-Lead Thin Shrink Small Outline Transistor Package [SC70]
(KS-4)
Dimensions shown in millimeters
ORDERING GUIDE
Model 1
ADCMP350YKS-REEL7
ADCMP350YKSZ-REEL7
ADCMP354YKS-REEL7
ADCMP354YKSZ-REEL7
ADCMP356YKS-REEL7
ADCMP356YKSZ-REEL7
1
Temperature Range
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
Package Description
4-Lead Thin Shrink Small Outline Transistor Package [SC70]
4-Lead Thin Shrink Small Outline Transistor Package [SC70]
4-Lead Thin Shrink Small Outline Transistor Package [SC70]
4-Lead Thin Shrink Small Outline Transistor Package [SC70]
4-Lead Thin Shrink Small Outline Transistor Package [SC70]
4-Lead Thin Shrink Small Outline Transistor Package [SC70]
Z = RoHS Compliant Part.
Rev. B | Page 10 of 12
Package
Option
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
Branding
M0Z
M55
M13
M56
M15
M8V
ADCMP350/ADCMP354/ADCMP356
NOTES
Rev. B | Page 11 of 12
ADCMP350/ADCMP354/ADCMP356
NOTES
©2004–2011 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D05112-0-4/11(B)
Rev. B | Page 12 of 12
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