a
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
Quad Low Power,
Precision Comparator
CMP04
PIN CONNECTIONS
14-Lead SOIC
OUT 2
1
OUT 1
2
V+
3
IN 1–
4
IN 1+
5
IN 2–
6
IN 2+
7
2
3
1
4
14
OUT 3
13
OUT 4
12
GND
11
IN 4+
10
IN 4–
9
8
IN 3+
IN 3–
CMP04
GENERAL DESCRIPTION
TYPICAL INTERFACE
5.0
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 single-
supply 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 inter-
face flexibility is offered by the open-collector TTL output.
3
100k
1/4
CD4011
1/4
CMP04
12
Figure 2a. Driving CMOS
5.0
V+
3.5 A
100 A
3.5 A
100 A
OUTPUT
Q8
3
10k
1/4
CMP04
12
1/4 SN7400
Q2
+INPUT
*
Q5
*SUBSTRATE
DIODES
Q1
Q3
Q4
Q7
Q6
*
–INPUT
Figure 2b. Driving TTL
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
Input Offset Voltage
Input Offset Current
Input Bias Current
Voltage Gain
Large Signal Response Time
Small Signal Response Time
Input Voltage Range
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Saturation Voltage
Output Sink Current
Output Leakage Current
Supply Current
Symbol
V
OS
I
OS
I
B
A
V
t
r
t
r
CMVR
CMRR
PSRR
V
OL
I
SINK
I
LEAK
I+
(@ V+ = 5 V, T
A
= 25 C, unless otherwise noted.)
Conditions
R
S
= 0
Ω,
R
L
= 5.1 kΩ, V
O
= 1.4 V
1
I
IN
(+) – I
IN
(–), R
L
= 5.1 kΩ, V
O
= 1.4 V
I
IN
(+) or I
IN
(–)
R
L
≥
15 kΩ, V+ = 15 V
2
V
IN
= TTL Logic Swing, V
REF
= 1.4 V
3
V
RL
= 5 V, R
L
= 5.1 kΩ
V
IN
= 100 mV Step
3
, 5 mV Overdrive
V
RL
= 5 V, R
L
= 5.1 kΩ
Note 4
Notes 2, 5
V+ = 5 V to 18 V
2
V
IN
(–)
≥
1 V, V
IN
(+) = 0, I
SINK
≤
4 mA
V
IN
(–)
≥
1 V, V
IN
(+) = 0, V
O
≤
1.5 V
V
IN
(+)
≥
1 V, V
IN
(–) = 0, V
O
= 30 V
R
L
=
∞
, All Comps V+ = 30 V
Min
Typ
0.4
2
25
200
300
1.3
0
80
80
6
V+ – 1.5
100
100
250
16
0.1
0.8
Max
1
10
100
Unit
mV
nA
nA
V/mV
ns
µs
V
dB
dB
mV
mA
nA
mA
80
400
100
2.0
NOTES
1
At output switch point, V
O
= 1.4 V, R
S
= 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
R
L
≥
15 kΩ, V+ = 15 V, V
CM
= 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 (T
J
) . . . . . . . . . . . . . –65°C to +150°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Input Current (V
IN
< –3.0 V) . . . . . . . . . . . . . . . . . . . 50 mA
Output Short Circuit to GND . . . . . . . . . . . . . . . . Continuous
Lead Temperature (Soldering, 60 sec) . . . . . . . . . . . . . 300°C
Package Type
14-Lead SOIC
JA
2
JC
Unit
°C/W
120
36
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
θ
JA
is specified for worst-case mounting conditions, i.e.,
θ
JA
is specified for device
soldered to printed circuit board for SOIC package.
ORDERING GUIDE
Model
CMP04FS
T
A
= 25 C
V
OS
1 mV
Temperature
Ranges
–40°C to +85°C
Package
Descriptions
14-Lead SOIC
Package
Options
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.
WARNING!
ESD SENSITIVE DEVICE
–2–
REV. D
CMP04
ELECTRICAL CHARACTERISTICS
Parameter
Input Offset Voltage
Input Offset Current
Symbol
V
OS
I
OS
I
B
A
V
t
r
t
r
CMVR
CMRR
PSRR
V
OL
I
SINK
I
LEAK
I+
(@ V+ = 5 V, –40 C
≤
T
A
≤
+85 C for CMP04FS, unless otherwise noted.)
Conditions
R
S
= 0
Ω,
R
L
= 5.1 kΩ
V
O
= 1.4 V
2
I
IN
(+) – I
IN
(–)
R
L
= 5.1 kΩ
V
O
= 1.4 V
I
IN
(+) or I
IN
(–)
R
L
≥
15 kΩ, V+ = 15 V
3
V
IN
= TTL Logic Swing
V
REF
= 1.4 V
4
V
RL
= 5 V, R
L
= 5.1 kΩ
V
IN
= 100 mV Step
4
5 mV Overdrive
V
RL
= 5 V, R
L
= 5.1 kΩ
Note 5
Notes 1, 3
V+ = 5 V to 18 V
V
IN
(–)
≥
1 V, V
IN
(+) = 0,
I
SINK
≤
4 mA
V
IN
(–)
≥
1 V,
V
IN
(+) = 0, V
O
≤
1.5 V
V
IN
(+)
≥
1 V,
V
IN
(–) = 0, V
O
= 30 V
R
L
=
∞,
All Comps
V+ = 30 V
Min
CMP04F
1
Typ
1
1
4
4
4
40
125
300
300
300
1.3
1.3
1.3
100
100
250
250
16
16
0.1
0.1
1.2
1.2
Max
2
2
20
20
20
200
Unit
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
Input Bias Current
Voltage Gain
Large Signal Response Time
70
Small Signal Response Time
Input Voltage Range
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Saturation Voltage
Output Sink Current
Output Leakage Current
Supply Current
0
60
80
V+ – 1.5
700
700
5
5
200
200
3.0
3.0
NOTES
1
R
L
≥
15 kΩ, V+ = 15 V, V
CM
= 1.5 V to 13.5 V.
2
At output switch point, V
O
= 1.4 V, R
S
= 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
3.6k
14
13
–18V
3.6k
12
4
1
11
10
9
8
CMP04
2
3
100k
3.6k
+18V
ONE EACH
PER BOARD
1
2
3
4
5
6
7
3.6k
+18V
ZENER
5.8V TO 6.2V
1 WATT
470k
MIL-STD-883, METHOD 1015, CONDITION B
30V
TO ADJACENT SOCKETS
Figure 3. Burn-In Circuit
REV. D
–3–
CMP04–Typical Performance Characteristics
0.3
I
B
– INPUT BIAS CURRENT (nA)
80
I
OS
– INPUT OFFSET CURRENT (nA)
3.0
V
OS
– OFFSET VOLTAGE (mV)
0.2
2.0
60
T
A
= 0 C
40
T
A
= +25 C/70 C
20
0.1
1.0
0
0
–0.1
–1.0
–0.2
–2.0
–0.3
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE ( C)
0
0
5
10
25
30
35
15 20
V+ – SUPPLY VOLTAGE (V
DC
)
40
–3.0
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE ( C)
TPC 1. Offset Voltage vs.
Temperature
TPC 2. Input Bias Current vs. V+
and Temperature
TPC 3. Input Offset Current vs.
Temperature
160
150
1.1
10
V
OL
– SATURATION VOLTAGE (V
DC
)
OUT OF SATURATION
1.0
A
V
– VOLTAGE GAIN (V/mV)
130
120
SUPPLY CURRENT (mA)
140
0.9
T
A
= 0 C
0.7
T
A
= +25 C
T
A
= +70 C
110
100
90
80
70
60
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE ( C)
0.1
0.5
0.01
T
A
= +25 C
0.3
0.1
0
5
10
20
25
30
15
SUPPLY VOLTAGE (V
DC
)
35
40
0.001
0.01
0.1
1.0
10
I
O
– OUTPUT SINK CURRENT (mA)
100
TPC 4. Voltage Gain vs.
Temperature
TPC 5. Supply Current vs. Supply
Voltage
TPC 6. Output Voltage vs. Output
Current and Temperature
6.0
OUTPUT VOLTAGE
V
O
(V)
OUTPUT VOLTAGE
V
O
(V)
5.0
4.0
3.0
2.0
100mV
1.0
0
20mV
INPUT OVERDRIVE =
5.0mV
5V
DC
V
IN
5.1k
V
OUT
6.0
5.0
4.0
20mV
3.0
2.0
1.0
0
0
–50
V
IN
INPUT OVERDRIVE =
100mV
T
A
= 25 C
5mV
5V
DC
5.1k
V
OUT
INPUT VOLTAGE
V
IN
(mV)
0
–50
T
A
= 25 C
0
0.5
1.0
TIME ( s)
1.5
2.0
–100
INPUT VOLTAGE
V
IN
(mV)
–100
0
0.5
1.0
TIME ( s)
1.5
2.0
TPC 7. Response Time for Various Input
Overdrives—Negative Transition
TPC 8. Response Time for Various Input
Overdrives—Positive Transition
–4–
REV. D
CMP04
TYPICAL APPLICATIONS
V+
V+
+V
IN
3k
1M
6.2k
1/4
CMP04
*
*
OR LOGIC WITHOUT
PULLUP RESISTOR
1/4
CMP04
V
O
1M
1M
V
O
STROBE
INPUT
V+
Figure 4. Output Strobing
Figure 7. Inverting Comparator with Hysteresis
V+
2R
S
+V
REF
HIGH
100k
4.3k
1/4
CMP04
+V
IN
R
S
75pF
V+
1/4
CMP04
100k
V+
100k
100k
0
f = 186kHz
V
O
2R
S
+V
REF
LOW
1/4
CMP04
Figure 5. Limit Comparator
Figure 8. Square Wave Oscillator
V+
V
IN1
100k
V+
5.1k
+V
REF
10k
+V
IN
3k
1/4
CMP04
V
O
10M
100k
V
IN2
1N914
1/4
CMP04
V
O
Figure 6. Noninverting Comparator with Hysteresis
Figure 9. Comparing Input Voltages of Opposite Polarity
REV. D
–5–
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