Transcript
FEATURES
FUNCTIONAL BLOCK DIAGRAMS 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
APPLICATIONS
OUT (OD/PP) REF
Voltage detectors Microprocessor systems Computers Battery monitors Intelligent instruments Portable equipment
05112-021
Data Sheet
Comparators and Reference Circuits ADCMP350/ADCMP354/ADCMP356
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.
Rev. D
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
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ADCMP350/ADCMP354/ADCMP356
Data Sheet
TABLE OF CONTENTS Features .............................................................................................. 1
Pin Configuration and Function Descriptions..............................5
Applications ....................................................................................... 1
Typical Performance Characteristics ..............................................6
Functional Block Diagrams ............................................................. 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 4/16—Rev. C to Rev. D Changes to Figure 13 Caption and Figure 14 Caption ................ 7 Updated Outline Dimensions ....................................................... 10 5/15—Rev. B to Rev. C Changes to Adding Hysteresis Section, Figure 20, and Figure 21 ............................................................................................ 9 Changes to Ordering Guide .......................................................... 10 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. D | Page 2 of 12
Data Sheet
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. D | 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
Data Sheet
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 at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability.
ESD CAUTION
300°C 215°C 220°C
Rev. D | Page 4 of 12
Data Sheet
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. D | Page 5 of 12
ADCMP350/ADCMP354/ADCMP356
Data Sheet
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 0.8
16 HYSTERESIS
0.7
12
0.6
10
0.5
8
0.4
6
0.3
4
0.2
2
0.1
–25
–10
5
20
35
50
65
80
95
TEMPERATURE (°C)
110
125
0 0
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)
Figure 6. VIN Trip Hysteresis vs. Temperature
Rev. D | Page 6 of 12
3.3
05112-019
TA = 25°C
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
20
35
14
80
520 20
12
100
40
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
Data Sheet
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
1
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
10
OUTPUT SINK CURRENT (mA)
Figure 10. Input Leakage vs. Supply Voltage, VCC (VIN = 22 V)
Figure 13. Output Voltage vs. Output Sink Current
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 μA) 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. D | 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
Data Sheet
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. D | Page 8 of 12
CH2 1.00V/DIV
TIMEBASE: 10µs/DIV
Figure 19. Propagation Delay Timing, 100 mV Overdrive
05112-016
2
Data Sheet
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 R2
ADCMP354 VREF = 0.6V R1
The lower input threshold level is given by
R2 05112-023
VREF R1 R2 RPULLUP VCC R1 R2 RPULLUP
Figure 21. Voltage Detector Application
The hysteresis is the difference between these voltage levels and is given by VHYS
VREF R1 R1VREF VCC R2 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
VIN_LO
RPULLUP
Figure 20. Noninverting Comparator Configuration with Added Hysteresis
Rev. D | Page 9 of 12
ADCMP350/ADCMP354/ADCMP356
Data Sheet
OUTLINE DIMENSIONS 2.20 1.80 0.65 0.65 BSC BSC 1.35 1.15
4
1
3
2.40 1.80
2
PIN 1 INDICATOR 0.50 BSC
0.10 MAX COPLANARITY 0.10
0.40 0.10
1.10 0.80
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 03-04-2014-B
1.00 0.80
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 ADCMP354YKSZ-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
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]
Z = RoHS Compliant Part.
Rev. D | Page 10 of 12
Package Option KS-4 KS-4 KS-4 KS-4
Branding M0Z M55 M56 M8V
Data Sheet
ADCMP350/ADCMP354/ADCMP356
NOTES
Rev. D | Page 11 of 12
ADCMP350/ADCMP354/ADCMP356
Data Sheet
NOTES
©2004–2016 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05112-0-4/16(D)
Rev. D | Page 12 of 12
