FUNCTIONAL BLOCK DIAGRAM
V
DIGITAL
=
+3V OR +5V
V
ANALOG+
=
+0V TO +5V
OUTPUT
IN+
IN
NOTE: (V
ANALOG+
) (V
ANALOG
)
3V
V
ANALOG
=
+0V TO 5V
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
23 ns and 65 ns
Low Voltage Comparators
CMP401/CMP402
Analog Devices, Inc., 1995
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FEATURES
23 ns or 65 ns Propagation Delay
Single-Supply Operation
Compatible with +3 V and +5 V Logic
Separate Input and Output Sections
Low Power
Wide Input Range: 5 V to +3.9 V
APPLICATIONS
Battery Operated Instrumentation
Line Receivers
Level Translators
Read Channel Detection
GENERAL DESCRIPTION
The CMP401 and CMP402 are 23 ns and 65 ns quad comp-
arators with separate input and output supplies. Separate supplies
enable the input stage to be operated from +3 volts to as high as
6 volts. The output can be supplied with either +3 volts or
+5 volts as determined by the interface logic or available supplies.
Independent input and output supplies combined with fast prop-
agation make the CMP401 and CMP402 excellent choices for
interfacing to portable instrumentation.
The CMP401 and CMP402 are specified over the extended
industrial (40
C to +125
C) temperature range. Both are
available in 16-pin plastic DIP or narrow SO-16 surface mount
packages. Consult factory for 16-lead TSSOP availability.
10
0%
2v
10nS
50mV
100
90
CMP401: 20 MHz Noninverting Switching. V
IN
=
100 mV
ELECTRICAL SPECIFICATIONS
Parameter
Symbol
Conditions
Min
Typ
Max
Units
INPUT CHARACTERISTICS
Offset Voltage
1
V
OS
T
A
= +25
C
3
mV
Offset Voltage
1
V
OS
4
mV
Hysteresis
2
mV
Input Bias Current
I
B
T
A
= +25
C
3
A
I
B
4
A
Input Offset Current
I
OS
3
A
Input Common-Mode Voltage Range
V
CM
0
+4.0
V
Common-Mode Rejection
CMRR
0.1 V
V
CM
3.9 V
60
dB
Large Signal Voltage Gain
A
VO
R
L
= 10 k
10
V/mV
Offset Voltage Drift
V
OS
/
T
1
V/
C
OUTPUT CHARACTERISTICS
Output High Voltage
V
OH
I
OH
= 3.2 mA
4.6
V
Output Low Voltage
V
OL
I
OL
= 3.2 mA
0.2
V
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
V+
ANA
and V+
DIG
+2.7 V to +6 V
60
dB
Analog Supply Current CMP401
I
ANA
T
A
= +25
C
6.5
mA
Digital Supply Current CMP401
I
DIG
V
O
= 0 V, R
L
=
, T
A
= +25
C
2.0
mA
Analog Supply Current CMP401
I
ANA
8.0
mA
Digital Supply Current CMP401
I
DIG
V
O
= 0 V, R
L
=
2.25
mA
Analog Supply Current CMP402
I
ANA
T
A
= +25
C
1.4
mA
Digital Supply Current CMP402
I
DIG
V
O
= 0 V, R
L
=
, T
A
= +25
C
2.0
mA
Analog Supply Current CMP402
I
ANA
1.75
mA
Digital Supply Current CMP402
I
DIG
V
O
= 0 V, R
L
=
2.25
mA
DYNAMIC PERFORMANCE
Propagation Delay CMP401
t
P
100 mV Step with 20 mV OD,
T
A
= +25
C
17
23
ns
Propagation Delay CMP401
t
P
100 mV Step with 5 mV OD,
T
A
= +25
C
33
ns
Propagation Delay CMP401
t
P
100 mV Step with 20 mV OD
30
ns
Propagation Delay CMP402
t
P
100 mV Step with 20 mV OD,
T
A
= +25
C
54
65
ns
Propagation Delay CMP402
t
P
100 mV Step with 5 mV OD,
T
A
= +25
C
60
ns
Propagation Delay CMP402
t
P
100 mV Step with 20 mV OD
75
ns
ELECTRICAL SPECIFICATIONS
Parameter
Symbol
Conditions
Min
Typ
Max
Units
INPUT CHARACTERISTICS
Offset Voltage
1
V
OS
4.5
mV
Input Common-Mode Voltage Range
V
CM
0
+2.0
V
Input Differential Voltage Range
V
DIFF
2.0
V
Common-Mode Rejection
CMRR
0.1 V
V
CM
1.9 V
60
dB
OUTPUT CHARACTERISTICS
Output High Voltage
V
OH
I
OH
= 3.2 mA
2.6
V
Output Low Voltage
V
OL
I
OL
= 3.2 mA
0.25
V
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
V+
ANA
and V+
DIG
+2.7 V to +6 V
60
dB
Analog Supply Current CMP401
I
ANA
6
mA
Digital Supply Current CMP401
I
DIG
V
O
= 0 V, R
L
=
1
mA
Analog Supply Current CMP402
I
ANA
1.2
mA
Digital Supply Current CMP402
I
DIG
V
O
= 0 V, R
L
=
1
mA
DYNAMIC PERFORMANCE
Propagation Delay CMP401
t
P
100 mV Step with 20 mV OD
32
ns
Propagation Delay CMP402
t
P
100 mV Step with 20 mV OD
70
ns
REV. 0
2
(@ V+
ANA
= V+
DIG
= +5.0 V, V
CM
= 0.1 V, 40 C
T
A
+125 C unless otherwise noted)
(@ V
ANA
= V
DIG
= +3.0 V, V
CM
= 0.1 V, T
A
= +25 C unless otherwise noted)
CMP401/CMP402SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Parameter
Symbol
Conditions
Min
Typ
Max
Units
INPUT CHARACTERISTICS
Offset Voltage
1
V
OS
V
CM
= 0 V
3
mV
Input Common-Mode Voltage Range
V
CM
5.0
+4.0
V
Input Differential Voltage Range
V
DIFF
8.0
V
Common-Mode Rejection
CMRR
4.9 V
V
CM
3.9 V
60
dB
Offset Voltage Drift
V
OS
/
T
1
5
V/
C
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
V
ANA
3 V to
6 V
60
dB
Analog Supply Current CMP401
I
ANA
6.5
mA
Digital Supply Current CMP401
I
DIG
V
O
= 0 V, R
L
=
2.0
mA
Analog Supply Current CMP402
I
ANA
2.0
mA
Digital Supply Current CMP402
I
DIG
V
O
= 0 V, R
L
=
2.0
mA
DYNAMIC PERFORMANCE
Propagation Delay CMP401
t
P
100 mV Step with 20 mV OD
23
ns
Propagation Delay CMP402
t
P
100 mV Step with 20 mV OD
65
ns
NOTES
1
Offset voltage is defined as (V
OS+
+ V
OS
)/2.
Specifications subject to change without notice.
REV. 0
3
(@ V
ANA
=
5 V, V
DIG
= +5.0 V, T
A
= +25 C unless otherwise noted)
CMP401/ CMP402
CMP401/ CMP402
REV. 0
4
WARNING!
ESD SENSITIVE DEVICE
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 CMP401/CMP402 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.
ABSOLUTE MAXIMUM RATINGS
1
Total Analog Supply Voltage . . . . . . . . . . . . . . . . . . . . . +16 V
Digital Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V
Analog Positive Supply--Digital Positive Supply . . . . 200 mV
Input Voltage
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . .
9 V
Output Short-Circuit Duration to GND . . . . . . . . . Indefinite
Storage Temperature Range
P, S, RU Package . . . . . . . . . . . . . . . . . . . 65
C to +150
C
Operating Temperature Range
CMP401G, CMP402G . . . . . . . . . . . . . . 40
C to +125
C
Junction Temperature Range
P, S, RU Package . . . . . . . . . . . . . . . . . . . 65
C to +150
C
Lead Temperature Range (Soldering, 60 sec) . . . . . . . +300
C
Package Type
JA
3
JC
Units
16-Pin Plastic DIP (P)
90
47
C/W
16-Pin SO (S)
113
37
C/W
16-Lead TSSOP (RU)
180
37
C/W
NOTES
1
Absolute maximum ratings apply to both DICE and packaged parts, unless
otherwise noted.
2
The analog input voltage is equal to
7 volts or the analog supply voltage,
whichever is less.
3
JA
is specified for the worst case conditions, i.e.,
JA
is specified for device in socket
for P-DIP, and
JA
is specified for device soldered in circuit board for SOIC and
TSSOP packages.
ORDERING GUIDE
Temperature
Package
Package
Model
Range
Description
Option
CMP401GP
40
C to +125
C 16-Pin Plastic DIP
N-16
CMP401GS
40
C to +125
C 16-Pin SOIC
R-16A
CMP401GRU
40
C to +125
C 16-Lead TSSOP
RU-16
CMP402GP
40
C to +125
C 16-Pin Plastic DIP
N-16
CMP402GS
40
C to +125
C 16-Pin SOIC
R-16A
CMP402GRU
40
C to +125
C 16-Lead TSSOP
RU-16
DICE CHARACTERISTICS
2
1
16 15
8
9
3
4
5
6
7
14
13
12
11
10
CMP401/CMP402 Die Size 0.065
0.069 inch, 4,485 sq. mils
Substrate (Die Backside) Is Connected to V+
Transistor Count 104.
+IN
IN
V+ ANA
V ANA
V+ DIG
OUT
DIG GND
Figure 1. Simplified Schematic
CMP401/CMP402 PIN CONFIGURATIONS
16-Lead Epoxy DIP
(P Suffix)
16-Lead Narrow-SO
(S Suffix)
16-Lead
TSSOP
(RU Suffix)
OUT B
OUT A
V+ DIG
V+ ANA
IN A
+IN A
IN B
+IN B
V ANA
DIG GND
OUT D
OUT C
IN C
+IN D
IN D
+IN C
1
16
8
9
TOP VIEW
(Not to Scale)
CMP401/
402
14
13
12
11
16
15
10
9
8
1
2
3
4
7
6
5
OUT B
OUT A
V+ DIG
V+ ANA
IN A
+IN A
IN B
+IN B
V ANA
DIG GND
OUT D
OUT C
IN C
+IN D
IN D
+IN C
TOP VIEW
(Not to Scale)
CMP401/
402
14
13
12
11
16
15
10
9
8
1
2
3
4
7
6
5
OUT B
OUT A
V+ DIG
V+ ANA
IN A
+IN A
IN B
+IN B
V ANA
DIG GND
OUT D
OUT C
IN C
+IN D
IN D
+IN C
Typical Performance CharacteristicsCMP401/ CMP402
REV. 0
5
OVERDRIVE mV
PROPAGATION DELAY ns
40
35
0
0
10
50
20
30
40
20
15
10
5
30
25
+P
DELAY
P
DELAY
+V
AN
= +V
DIG
= +5V
V
AN
= 0V TO 5V
R
S
50
, C
L
= 15pF
T
A
= +25
C
Figure 2. CMP401 Propagation Delay
vs. Overdrive
TEMPERATURE
C
PROPAGATION DELAY ns
90
30
50
25
125
0
25
50
75
100
80
70
60
50
40
+V
AN
= +V
DIG
= +5V
V
AN
= 0V TO 5V
R
S
50
, C
L
= 15pF
+P
DELAY
P
DELAY
Figure 5. CMP402 Propagation Delay
vs. Temperature 5 mV OD
SOURCE RESISTANCE
90
80
0
10
100
100k
1k
10k
40
30
20
10
70
60
50
PROPAGATION DELAY ns
+V
AN
= +V
DIG
= +5V
V
AN
= 0V TO 5V
T
A
= +25
C
+P
DELAY
P
DELAY
Figure 8. CMP401 Propagation Delay
vs. Source Resistance 20 mV OD
OVERDRIVE mV
PROPAGATION DELAY ns
110
90
20
0
10
50
20
30
40
60
50
40
30
80
70
+V
AN
= +V
DIG
= +5V
V
AN
= 0V TO 5V
R
S
50
, C
L
= 15pF
T
A
= +25
C
+P
DELAY
P
DELAY
Figure 3. CMP402 Propagation Delay
vs. Overdrive
TEMPERATURE
C
PROPAGATION DELAY ns
30
0
50
25
125
0
25
50
75
100
25
20
15
10
5
+V
AN
= +V
DIG
= +5V
V
AN
= 0V TO 5V
R
S
50
, C
L
= 15pF
+P
DELAY
P
DELAY
Figure 6. CMP401 Propagation Delay
vs. Temperature 20 mV OD
SOURCE RESISTANCE
PROPAGATION DELAY ns
120
100
0
10
100
100k
1k
10k
80
60
40
20
+V
AN
= +V
DIG
= +5V
V
AN
= 0V TO 5V
T
A
= +25
C
+P
DELAY
P
DELAY
Figure 9. CMP402 Propagation Delay
vs. Source Resistance 20 mV OD
TEMPERATURE
C
PROPAGATION DELAY ns
40
10
50
25
125
0
25
50
75
100
35
30
25
20
15
+P
DELAY
P
DELAY
+V
AN
= +V
DIG
= +5V
V
AN
= 0V TO 5V
R
S
50
, C
L
= 15pF
Figure 4. CMP401 Propagation Delay
vs. Temperature 5 mV OD
TEMPERATURE
C
PROPAGATION DELAY ns
60
0
50
25
125
0
25
50
75
100
50
40
30
20
10
+V
AN
= +V
DIG
= +5V
V
AN
= 0V TO 5V
R
S
50
, C
L
= 15pF
+P
DELAY
P
DELAY
Figure 7. CMP402 Propagation Delay
vs. Temperature 20 mV OD
POSITIVE SUPPLY VOLTAGE Volts
PROPAGATION DELAY ns
80
70
0
0
2
6
3
4
5
40
30
20
10
60
50
+V
AN
= +V
DIG
V
AN
= 0V TO 5V
R
S
50
, C
L
= 15pF
T
A
= +25
C
+P
DELAY
P
DELAY
Figure 10. CMP401 Propagation Delay
vs. Supply Voltage 20 mV OD
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