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Электронный компонент: CA3100

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3-1
Semiconductor
January 1999
CA3100
38MHz, Operational Amplifier
Features
High Open Loop Gain at Video
Frequencies . . . . . . . . . . . . . . . . . . 42dB (Typ) at 1MHz
Unity Gain
Crossover Frequency (f
T
) . . . . . . . . . . . . . 38MHz (Typ)
Full Power Bandwidth
V
O
= 18V
P-P
. . . . . . . . . . . . . . . . . . . . . . . 1.2MHz (Typ)
Slew Rate
- 20dB Amplifier . . . . . . . . . . . . . . . . . . . . 70V/
s (Typ)
- Unity Gain Amplifier. . . . . . . . . . . . . . . . 25V/
s (Typ)
Settling Time . . . . . . . . . . . . . . . . . . . . . . . . 0.6
s (Typ)
Output Current . . . . . . . . . . . . . . . . . . . . . .
15mA (Min)
Single Capacitor Compensation
Offset Null Terminals
Applications
Video Amplifiers
Fast Peak Detectors
Meter Driver Amplifiers
High Frequency Feedback Amplifiers
Video Pre-Drivers
Oscillators
Multivibrators
Voltage Controlled Oscillator
Fast Comparators
Description
The CA3100 is a large signal wideband, high speed
operational amplifier which has a unity gain cross over
frequency (f
T
) of approximately 38MHz and an open loop,
3dB corner frequency of approximately 110kHz. It can
operate at a total supply voltage of from 14V to 36V (
7V to
18V when using split supplies) and can provide at least
18V
P-P
and 30mA
P-P
at the output when operating from
15V supplies. The CA3100 can be compensated with a
single external capacitor and has DC offset adjust terminals
for those applications requiring offset null. (See Figure 1).
The CA3100 circuit contains both bipolar and PMOS transis-
tors on a single monolithic chip.
Pinouts
Part Number Information
PART NUMBER
(BRAND)
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
CA3100E
-40 to 85
8 Ld PDIP
E8.3
CA3100M
(3100)
-40 to 85
8 Ld SOIC
M8.15
CA3100T
-55 to 125
8 Pin Metal Can
T8.C
CA3100
(PDIP, SOIC)
TOP VIEW
CA3100
(METAL CAN)
TOP VIEW
1
2
3
4
8
7
6
5
OFFSET
NULL
INV.
INPUT
NON-INV.
INPUT
V-
V+
OUTPUT
OFFSET
NULL
PHASE COMPENSATION
-
+
V+
2
4
6
1
3
7
5
8
-
+
PHASE
COMP TAB
OUTPUT
OFFSET
NULL
NON-INV.
INPUT
INV.
INPUT
V-
PHASE
COMP AND
OFFSET NULL
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Harris Corporation 1999
File Number
625.4
[ /Title
(CA31
00)
/Sub-
ject
(38MH
z,
Opera-
tional
Ampli-
fier)
/Autho
r ()
/Key-
words
(Har-
ris
Semi-
con-
ductor,
single,
opera-
tional
ampli-
fier, op
amp,
gen-
eral
pur-
pose,
indus-
trial
mili-
tary
OBSOLETE PR
ODUCT
POSSIBLE SUBSTITUTE PR
ODUCT
HA-2525
3-2
Absolute Maximum Ratings
Thermal Information
Supply Voltage (Between V+ and V- Terminals) . . . . . . . . . . . . . 36V
Differential Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Input Voltage to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . V+ to V-
Offset Terminal to V- Terminal Voltage . . . . . . . . . . . . . . . . . .
0.5V
Output Current (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Operating Conditions
Temperature Range
CA3100E, CA3100M. . . . . . . . . . . . . . . . . . . . . . . -40
o
C to 85
o
C
CA3100T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to 125
o
C
Thermal Resistance (Typical, Note 1)
JA
(
o
C/W)
JC
(
o
C/W)
PDIP Package . . . . . . . . . . . . . . . . . . .
100
N/A
SOIC Package . . . . . . . . . . . . . . . . . . .
165
N/A
Metal Can Package . . . . . . . . . . . . . . .
170
85
Maximum Junction Temperature (Metal Can) . . . . . . . . . . . . . 175
o
C
Maximum Junction Temperature (Plastic Package) . . . . . . . 150
o
C
Maximum Storage Temperature Range . . . . . . . . . -65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300
o
C
(SOIC - Lead Tips Only)
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1.
JA
is measured with the component mounted on an evaluation PC board in free air.
2. CA3100 does not contain circuitry to protect against short circuits in the output.
Electrical Specifications
T
A
= 25
o
C, V
SUPPLY
=
15V, Unless Otherwise Specified
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
DC
Input Offset Voltage
V
IO
V
O
= 0
0.1V
-
1
5
mV
Input Bias Current
I
IB
V
O
= 0
1V
-
0.7
2
A
Input Offset Current
I
IO
V
O
= 0
1V
-
0.05
0.4
A
Common Mode Input Voltage Range
V
lCR
CMRR
76dB
12
+14
-13
-
V
Common Mode Rejection Ratio
CMRR
V
CM
=
12V
76
90
-
dB
Maximum Output Voltage
V
OM
+
Differential Input Voltage = 0
0.1V,
R
L
= 2k
+9
+11
-
V
V
OM
-
-9
-11
-
V
Maximum Output Current
I
OM
+
Differential Input Voltage = 0 + 0.1V,
R
L
= 250
+15
+30
-
mA
I
OM
-
-15
-30
-
mA
Supply Current
I+
V
O
= 0
0.1V, R
L
10k
-
8.5
10.5
mA
Power Supply Rejection Ratio
PSRR
V+ =
1V,
V- =
1V
60
70
-
dB
DYNAMIC
Unity-Gain Crossover Frequency
f
T
C
C
= 0, V
O
= 0.3V
P-P
-
38
-
MHz
Open Loop Voltage Gain
A
OL
f = 1kHz, V
O
=
1V, (Note 3)
56
61
-
dB
f = 1MHz, C
C
= 0, V
O
= 10V
P-P
36
42
-
dB
Slew Rate
SR
A
V
= 10, C
C
= 0, V
I
= 1V (Pulse)
50
70
-
V/
s
A
V
= 1, C
C
= 10pF, V
I
= 10V (Pulse)
-
25
-
V/
s
Full Power Bandwidth (Note 4)
FPBW
A
V
= 10, C
C
= 0, V
O
= 18V
P-P
0.8
1.2
-
MHz
A
V
= 1, C
C
= 10pF, V
O
= 18V
P-P
-
0.4
-
MHz
Open Loop Differential Input Impedance
Z
I
f = 1MHz
-
30
-
k
Open Loop Output lmpedance
Z
O
f = 1MHz
-
110
-
CA3100
3-3
Wideband Noise Voltage (RTI)
e
N
(Total)
BW = 1MHz, R
S
= 1k
-
8
-
V
RMS
Settling Time (To Within
50mV of 9V
Output Swing)
tS
R
L
= 2k
, C
L
= 20pF
-
0.6
-
s
NOTES:
3. Low frequency dynamic characteristic.
4.
.
Electrical Specifications
T
A
= 25
o
C, V
SUPPLY
=
15V, Unless Otherwise Specified (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Full Power Bandwidth
Slew Rate
V
O P
P
---------------------------
=
Test Circuits
FIGURE 1. OPEN-LOOP VOLTAGE GAIN TEST CIRCUIT AND
OFFSET ADJUST CIRCUIT
FIGURE 2. SLEW RATE IN 10X AMPLIFIER TEST CIRCUIT
FIGURE 3. FOLLOWER SLEW RATE TEST CIRCUIT
FIGURE 4. WIDEBAND INPUT NOISE VOLTAGE TEST CIRCUIT
+
-
CA3100
7
4
8
5
V
O
V+
2
1
3
R
X
6
V-
20pF
2k
WITH V
I
= 0 ADJ
POTENTIO-
TO GIVE
METER (R
X
)
V
O
= 0
0.1V
DC
AT FREQUENCY > 1MHz V
I
AND V
O
MEASURED WITH
HF8405A VECTOR
NULL ADJUST
POTENTIOMETER
SET V
I
TO GIVE
DESIRED V
O
LEVEL
AT TEST FREQUENCY
C
C
0.1
F
HP606A
OR
EQUIV
51
A
OL
=
V
O
V
I
OL
0.1
F
V
I
10k
VOLTMETER
V
O
V+
2
4
6
20
2k
0.1
+1V
PULSE
t
R
10ns
51
0.1
F
V
I
7
+
-
CA3100
3
pF
F
t
WIDTH
1
s
SLOPE = SR
220
V-
2k
V
O
V+
2
5
+10V
PULSE
t
R
10ns
51
0.1
F
V
I
+
-
CA3100
3
SLOPE = SR
V-
4
7
1
3
10pF
0.1
F
500pF
2k
6
t
WIDTH
1
s
+15V
2
4
6
0.1
F
0.1
F
7
+
-
CA3100
3
A
V
= 100
47
-15V
420
POST AMPL. AND
2 POLE 1MHz
FILTER
HP400EL
VTVM
e
NO
INPUT REFERRED
NOISE VOLTAGE
e
NI
=
e
NO
100
R
S
CA3100
3-4
Schematic Diagram
FIGURE 5. OUTPUT VOLTAGE SWING (V
OM
), OUTPUT
CURRENT SWING (I
OM
) TEST CIRCUIT
FIGURE 6. SETTLING TIME TEST CIRCUIT
Test Circuits
(Continued)
2
4
6
1k
7
+
-
CA3100
3
1k
-15V
V
OM
9.1k
R
L
2k
1V
+15V
R
L
= 250
FOR I
OM
TEST
I
OM
=
V
O
250
+
-
CA3100
7
4
1
8
-15V
+15V
3
6
1pF
2k
0.1
F
V
O
=
9V
20pF
0.1
F
1k
12pF
2k
2k
2k
51
SETTLING POINT TO SCOPE
V
I
=
9V
2
3
2
4
V+
Q
3
Q
4
R
1
2.5k
C
1
10pF
D
2
D
3
Q
13
OUTPUT
PHASE
COMP
Q
8
Q
6
Q
5
Q
1
Q
7
Q
9
R
9
200
Q
18
R
8
200
R
17
600
R
19
600
R
18
150
OFFSET
NULL
AND PHASE
COMP
OFFSET
NULL
D
5
Q
17
Q
16
6
8
5
1
7
R
5
750
R
4
750
R
6
12k
NON-
INVERT
INPUT
+
Q
12
Q
15
Q
14
Q
11
R
10
20
R
11
20
Q
23
Q
21
Q
22
Q
20
R
12
50
R
14
R
13
20
Q
19
R
15
1.1k
R
16
150
R
7
10k
-
INVERT
INPUT
D
4
Q
10
Q
2
1.1k
V-
CA3100
3-5
Typical Applications
FIGURE 7. 20dB VIDEO AMPLIFIER
FIGURE 8. 20dB VIDEO LINE DRIVER
FIGURE 9. FAST POSITIVE PEAK DETECTOR
FIGURE 10. 1MHz METER-DRIVER AMPLIFIER
Typical Performance Curves
FIGURE 11. OPEN LOOP GAIN, OPEN LOOP PHASE SHIFT vs
FREQUENCY
FIGURE 12. OPEN LOOP GAIN vs FREQUENCY
2
+
-
CA3100
3k
-15V
6
4
3
+15V
7
INPUT
0.33
F
0.1
F
OUTPUT
2k
220
3pF
0.1
F
-3dB BANDWIDTH
20MHz
TOTAL INPUT NOISE
VOLTAGE REFERRED TO
INPUT
35
V
RMS
2
+
-
CA3100
-15V
0.1
F
OUTPUT TO
3
6
4
7
+15V
3pF
220
3k
0.33
F
INPUT
4.7
2N5320
2N5322
TERMINATED
50
TRANS-
MISSION LINE
k
220
2k
0.1
F
1N5393
10
10
DELIVERS FOLLOWING
PEAK VOLTAGES TO
50
LINE:
FREQ
1MHz
2MHz
4MHz
6MHz
V
O
8V
5V
2V
1V
GAIN = 20dB
3dB BANDWIDTH = 15MHz
A
CL
= 20dB
2
+
-
CA3100
0.1
F
7
4
6
3
V
I
(AC)
3k
1.2k
-15V
+15V
1000pF
1N914
2N2102
V
O
(DC) =
+V
I
PEAK
0.1
F
2
+
-
CA3100
8
4
6
3
+15V
1mA
1N914
0.1
F
1
7
FULL
SCALE
-15V
250
POT.
330
FULL SCALE
CALIBRATION
ADJUST
TEST
LEADS
INPUT
IMPEDANCE
50k
51k
20k
ZERO ADJ
200
10pF
1V
RMS
51k
+
-
0.1
F
FULL SCALE
DC
METER
12pF
24pF
12pF
C
C
= 24pF
12pF
T
A
= 25
o
C
V
S
=
15V
R
L
= 2k
C
L
= 20pF
0pF
70
60
50
40
30
20
10
0
OPEN LOOP V
O
L
T
A
GE GAIN (dB)
0.001
0.01
0.1
1
10
100
FREQUENCY (MHz)
-270
-225
-180
-135
-90
-45
0
OPEN LOOP PHASE SHIFT (DEGREES)
80
|A
OL
|
0pF
0pF
C
C
= 24pF
V
S
=
15V
R
L
= 2k
C
C
= 0
25
o
C
125
o
C
T
A
= -55
o
C
0.001
0.01
0.1
1
10
100
FREQUENCY (MHz)
70
60
50
40
30
20
10
0
OPEN LOOP V
O
L
T
A
GE GAIN (dB)
CA3100