AD CMP04FP Quad low power, precision comparator Datasheet

a
Quad Low Power,
Precision Comparator
CMP04
FEATURES
High Gain: 200 V/mV Typ
Single- or Dual-Supply Operation
Input Voltage Range Includes Ground
Low Power Consumption (1.5 mW/Comparator)
Low Input Bias Current: 100 nA Max
Low Input Offset Current: 10 nA Max
Low Offset Voltage: 1 mV Max
Low Output Saturation Voltage: 250 mV @ 4 mA
Logic Output Compatible with TTL, DTL, ECL, MOS,
and CMOS
Directly Replaces LM139/LM239/LM339 Comparators
PIN CONNECTIONS
14-Lead SOIC
OUT 2 1
14
OUT 3
OUT 1 2
13
OUT 4
12
GND
IN 1– 4
11
IN 4+
IN 1+ 5
10
IN 4–
9
IN 3+
8
IN 3–
V+ 3
IN 2– 6
4
1
2
3
IN 2+ 7
CMP04
GENERAL DESCRIPTION
TYPICAL INTERFACE
Four precision independent comparators comprise the CMP04.
Performance highlights include a very low offset voltage, low
output saturation voltage, and high gain in a single-supply
design. The input voltage range includes ground for singlesupply operation and V– for split supplies. A low power
supply current of 2 mA, which is independent of supply voltage,
makes this the preferred comparator for precision applications
requiring minimal power consumption. Maximum logic interface flexibility is offered by the open-collector TTL output.
5.0
3
12
Figure 2a. Driving CMOS
5.0
V+
3.5␮A
100␮A
3.5␮A
3
100␮A
OUTPUT
Q8
Q2
Q3
Q1
+INPUT
1/4 SN7400
–INPUT
Q7
Q5
10k⍀
1/4
CMP04
12
Q4
*
1/4
CD4011
100k⍀
1/4
CMP04
*
Q6
Figure 2b. Driving TTL
*SUBSTRATE DIODES
Figure 1. Simplified Schematic (1/4 CMP04)
REV. D
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. 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 companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© 2003 Analog Devices, Inc. All rights reserved.
CMP04–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
Parameter
(@ V+ = 5 V, TA = 25ⴗC, unless otherwise noted.)
Symbol
Conditions
Input Offset Voltage
Input Offset Current
Input Bias Current
Voltage Gain
Large Signal Response Time
VOS
IOS
IB
AV
tr
Small Signal Response Time
tr
Input Voltage Range
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Saturation Voltage
Output Sink Current
Output Leakage Current
Supply Current
CMVR
CMRR
PSRR
VOL
ISINK
ILEAK
I+
RS = 0 Ω, RL = 5.1 kΩ, VO = 1.4 V
IIN(+) – IIN(–), RL = 5.1 kΩ, VO = 1.4 V
IIN(+) or IIN(–)
RL ≥ 15 kΩ, V+ = 15 V2
VIN = TTL Logic Swing, VREF = 1.4 V3
VRL = 5 V, RL = 5.1 kΩ
VIN = 100 mV Step3, 5 mV Overdrive
VRL = 5 V, RL = 5.1 kΩ
Note 4
Notes 2, 5
V+ = 5 V to 18 V2
VIN(–) ≥ 1 V, VIN(+) = 0, ISINK ≤ 4 mA
VIN(–) ≥ 1 V, VIN(+) = 0, VO ≤ 1.5 V
VIN(+) ≥ 1 V, VIN(–) = 0, VO = 30 V
RL = ∞, All Comps V+ = 30 V
Min
Typ
Max
Unit
1
10
100
80
0.4
2
25
200
mV
nA
nA
V/mV
1
300
ns
1.3
0
80
80
6
V+ – 1.5
100
100
250
16
0.1
0.8
400
100
2.0
µs
V
dB
dB
mV
mA
nA
mA
NOTES
1
At output switch point, V O = 1.4 V, RS = 0 Ω with V+ from 5 V, and over the full input common-mode range (0 V to V+ – 1.5 V).
2
Guaranteed by design.
3
Sample tested.
4
The input common-mode voltage or input signal voltage should not be allowed to go negative by more than 0.3 V. The upper end of the common-mode voltage range
is V+ – 1.5 V, but either or both inputs can go to 30 V without damage.
5
RL ≥ 15 kΩ, V+ = 15 V, VCM = 1.5 V to 13.5 V.
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS 1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . +36 V or ± 18 V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . 36 V dc
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +36 V
Operating Temperature Range
CMP04FS . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C
Junction Temperature (TJ) . . . . . . . . . . . . . –65°C to +150°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Input Current (VIN < –3.0 V) . . . . . . . . . . . . . . . . . . . 50 mA
Output Short Circuit to GND . . . . . . . . . . . . . . . . Continuous
Lead Temperature (Soldering, 60 sec) . . . . . . . . . . . . . 300°C
Package Type
␪JA2
␪JC
Unit
14-Lead SOIC
120
36
°C/W
NOTES
1
Absolute maximum ratings apply to both DICE and packaged parts, unless
otherwise noted. 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 listed in the
operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
2
θJA is specified for worst-case mounting conditions, i.e., θJA is specified for device
soldered to printed circuit board for SOIC package.
ORDERING GUIDE
Model
TA = 25ⴗC
VOS
Temperature
Ranges
Package
Descriptions
Package
Options
CMP04FS
1 mV
–40°C to +85°C
14-Lead SOIC
R-14
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
the CMP04 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.
–2–
WARNING!
ESD SENSITIVE DEVICE
REV. D
CMP04
ELECTRICAL CHARACTERISTICS
(@ V+ = 5 V, –40ⴗC ≤ TA ≤ +85ⴗC for CMP04FS, unless otherwise noted.)
Parameter
Symbol
Conditions
Input Offset Voltage
VOS
Input Offset Current
IOS
Input Bias Current
Voltage Gain
Large Signal Response Time
IB
AV
tr
Small Signal Response Time
tr
Input Voltage Range
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Saturation Voltage
CMVR
CMRR
PSRR
VOL
Output Sink Current
ISINK
Output Leakage Current
ILEAK
Supply Current
I+
RS = 0 Ω, RL = 5.1 kΩ
VO = 1.4 V2
IIN(+) – IIN(–)
RL = 5.1 kΩ
VO = 1.4 V
IIN(+) or IIN(–)
RL ≥ 15 kΩ, V+ = 15 V3
VIN = TTL Logic Swing
VREF = 1.4 V4
VRL = 5 V, RL = 5.1 kΩ
VIN = 100 mV Step4
5 mV Overdrive
VRL = 5 V, RL = 5.1 kΩ
Note 5
Notes 1, 3
V+ = 5 V to 18 V
VIN(–) ≥ 1 V, VIN(+) = 0,
ISINK ≤ 4 mA
VIN(–) ≥ 1 V,
VIN(+) = 0, VO ≤ 1.5 V
VIN(+) ≥ 1 V,
VIN(–) = 0, VO = 30 V
RL = ∞, All Comps
V+ = 30 V
Min
70
0
60
80
5
5
CMP04F1
Typ
1
1
4
4
4
40
125
300
300
300
1.3
1.3
1.3
Max
Unit
2
2
20
20
20
200
mV
mV
nA
nA
nA
nA
V/mV
ns
ns
ns
µs
µs
µs
V
dB
dB
mV
mV
mA
mA
nA
nA
mA
mA
V+ – 1.5
100
100
250
250
16
16
0.1
0.1
1.2
1.2
700
700
200
200
3.0
3.0
NOTES
1
RL ≥ 15 kΩ, V+ = 15 V, VCM = 1.5 V to 13.5 V.
2
At output switch point, V O = 1.4 V, RS = 0 Ω with V+ from 5 V; and over the full input common-mode range (0 V to V+ –1.5 V).
3
Guaranteed by design.
4
Sample tested.
5
The input common-mode voltage or input signal voltage should not be allowed to go negative by more than 0.3 V. The upper end of the common-mode
voltage range is V+ – 1.5 V, but either or both inputs can go to +30 V without damage.
Specifications subject to change without notice.
–18V
–18V
3.6k⍀
3.6k⍀
14
13
12
11
10
9
8
6
7
4
1
CMP04
2
3
1
100k⍀
2
3.6k⍀
3
4
5
3.6k⍀
+18V
ONE EACH
PER BOARD
+18V
ZENER
5.8V TO 6.2V
1 WATT
470k⍀
30V
TO ADJACENT SOCKETS
MIL-STD-883, METHOD 1015, CONDITION B
Figure 3. Burn-In Circuit
REV. D
–3–
CMP04–Typical Performance Characteristics
0.2
0.1
0
–0.1
–0.2
IOS – INPUT OFFSET CURRENT (nA)
IB – INPUT BIAS CURRENT (nA)
60
TA = 0ⴗC
40
TA = +25ⴗC/70ⴗC
20
1.0
0
–1.0
–2.0
–3.0
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (ⴗC)
0
–0.3
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (ⴗC)
0
TPC 1. Offset Voltage vs.
Temperature
10
25
30
35
15 20
V+ – SUPPLY VOLTAGE (VDC)
5
40
TPC 2. Input Bias Current vs. V+
and Temperature
TPC 3. Input Offset Current vs.
Temperature
10
1.1
160
150
SUPPLY CURRENT (mA)
140
130
120
110
100
90
80
TA = 0ⴗC
0.9
0.7
TA = +25ⴗC
TA = +70ⴗC
0.5
70
0.1
60
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (ⴗC)
0
5
10
20
25
30
15
SUPPLY VOLTAGE (VDC)
35
INPUT VOLTAGE
VIN (mV)
4.0
5VDC
20mV
VIN
3.0
5.1k⍀
2.0
VOUT
100mV
1.0
0
0
–50
–100
0.5
1.0
TIME (␮s)
1.5
TA = +25ⴗC
0.1
1.0
10
IO – OUTPUT SINK CURRENT (mA)
5.0
100
TPC 6. Output Voltage vs. Output
Current and Temperature
INPUT OVERDRIVE =
100mV
TA = 25ⴗC
4.0
20mV
3.0
5mV
2.0
1.0
5VDC
0
5.1k⍀
VIN
0
VOUT
–50
–100
TA = 25ⴗC
0
0.1
6.0
INPUT OVERDRIVE =
5.0mV
OUTPUT VOLTAGE
VO (V)
OUTPUT VOLTAGE
VO (V)
6.0
5.0
1.0
0.001
0.01
40
TPC 5. Supply Current vs. Supply
Voltage
TPC 4. Voltage Gain vs.
Temperature
OUT OF SATURATION
0.01
0.3
INPUT VOLTAGE
VIN (mV)
AV – VOLTAGE GAIN (V/mV)
2.0
VOL – SATURATION VOLTAGE (VDC)
VOS – OFFSET VOLTAGE (mV)
3.0
80
0.3
2.0
0
0.5
1.0
TIME (␮s)
1.5
2.0
TPC 8. Response Time for Various Input
Overdrives—Positive Transition
TPC 7. Response Time for Various Input
Overdrives—Negative Transition
–4–
REV. D
CMP04
TYPICAL APPLICATIONS
V+
V+
+VIN
3k⍀
1/4
CMP04
6.2k⍀
1M⍀
1/4
CMP04
V+
VO
VO
1M⍀
STROBE
INPUT
*
1M⍀
*OR LOGIC WITHOUT
PULLUP RESISTOR
Figure 4. Output Strobing
Figure 7. Inverting Comparator with Hysteresis
V+
2R S
+VREF HIGH
100k⍀
1/4
CMP04
+VIN
75pF
4.3k⍀
V+
0
1/4
CMP04
RS
f = 186kHz
VO
2R S
100k⍀
100k⍀
1/4
CMP04
V+
100k⍀
+VREF LOW
Figure 5. Limit Comparator
Figure 8. Square Wave Oscillator
V+
V+
100k⍀
VIN1
+VREF
3k⍀
10k⍀
5.1k⍀
1/4
CMP04
+VIN
100k⍀
VIN2
1N914
1/4
CMP04
VO
VO
10M⍀
Figure 6. Noninverting Comparator with Hysteresis
REV. D
Figure 9. Comparing Input Voltages of Opposite Polarity
–5–
CMP04
V+
V+
V+
0
t0
1M⍀
10k⍀
100pF
V+
+VIN
1N914
1ms
1/4
CMP04
1M⍀
D1
1N914
R2
100k⍀
D2
1N914
15k⍀
PW
t0
80pF
0
t1
V+
1/4
CMP04
VO
0.01␮F
R1
1M⍀
1M⍀
t0
t1
0
t2
V+
1N914
1M⍀
Figure 10. One-Shot Multivibrator
Figure 12. Pulse Generator
V+
V+
39k⍀
100k⍀
A
V+
1k⍀
0.375V
100k⍀
200k⍀
3k⍀
100k⍀
A
1/4
CMP04
f
V+
0
1
0.075V
1k⍀
100k⍀
3k⍀
1/4
CMP04
f
B
B
0
FOR LARGE RATIOS OF R1/R2,
D1 CAN BE OMITTED.
1M⍀
1M⍀
1k⍀
100k⍀
C
0
1=A•B•C
0
1k⍀
100k⍀
1
1=A+B+C
C
Figure 11. AND Gate
Figure 13. OR Gate
V+
1M⍀
4V
0
560k⍀
10M⍀
+VIN
1S
1M⍀
100k⍀
100k⍀
1/4
CMP04
100pF
15k⍀
1/4
CMP04
V+
T
VO
10M⍀
240k⍀
t0
t1
0
T = 0.3ms
62k⍀
Figure 14. One-Shot Multivibrator with Input Lockout
–6–
REV. D
CMP04
V+
V+
10k⍀
15k⍀
200k⍀
V+
V3
10k⍀
V2
VC1
V3
V1
0
3.0k⍀
10M⍀
t0
t1
t2
t3
+VIN
t4
3.0k⍀
10M⍀
V+
V+
t0
t0
VO3
V+
51k⍀
t4
10k⍀
0
0
1/4
CMP04
10k⍀
1/4
CMP04
C1
0.001␮F
V2
0
1/4
CMP04
t 0 t2
VO2
V+
INPUT GATING SIGNAL
51k⍀
10M⍀
3.0k⍀
V+
10k⍀
V1
0
1/4
CMP04
51k⍀
Figure 15. Time Delay Generator
REV. D
–7–
VO1
t 0 t1
t3
CMP04
OUTLINE DIMENSIONS
C00266–0–3/03(D)
14-Lead Standard Small Outline Package [SOIC]
Narrow Body
(R-14)
Dimensions shown in millimeters and (inches)
8.75 (0.3445)
8.55 (0.3366)
4.00 (0.1575)
3.80 (0.1496)
14
8
1
7
0.25 (0.0098)
0.10 (0.0039)
COPLANARITY
0.10
1.27 (0.0500)
BSC
0.51 (0.0201)
0.33 (0.0130)
6.20 (0.2441)
5.80 (0.2283)
1.75 (0.0689)
1.35 (0.0531)
SEATING
PLANE
0.50 (0.0197)
ⴛ 45ⴗ
0.25 (0.0098)
8ⴗ
0.25 (0.0098) 0ⴗ 1.27 (0.0500)
0.40 (0.0157)
0.19 (0.0075)
COMPLIANT TO JEDEC STANDARDS MS-012AB
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN
Revision History
Location
Page
3/03—Data Sheet changed from REV. C to REV. D.
Renumbered TPCs and Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Global
Deletion of 14-Lead CERDIP and 14-Lead PDIP information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Global
Changes to FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Changes to PIN CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Changes to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Changes to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Changes to ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Removal of DICE CHARACTERISTICS, WAFER TEST LIMITS, and TYPICAL ELECTRICAL
CHARACTERISTICS sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Changes to TPCs 2, 5, and 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Updated OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
–8–
REV. D