Intersil CA3100T 38mhz, operational amplifier Datasheet

CA3100
Semiconductor
CT
ODU ODUCT
R
P
PR
TE
OLE TITUTE
S
B
O
UBS
5
LE S HA-252
B
I
S
OS
January 1999
[ /Title
(CA31
00)
/Subject
(38MH
z,
Operational
Amplifier)
/Autho
r ()
/Keywords
(Harris
Semiconductor,
single,
operational
amplifier, op
amp,
general
purpose,
industrial
military
38MHz, Operational Amplifier
P
Features
Description
• High Open Loop Gain at Video
Frequencies . . . . . . . . . . . . . . . . . . 42dB (Typ) at 1MHz
The CA3100 is a large signal wideband, high speed
operational amplifier which has a unity gain cross over
frequency (fT) 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
18VP-P and 30mAP-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).
• Unity Gain
Crossover Frequency (fT) . . . . . . . . . . . . . 38MHz (Typ)
• Full Power Bandwidth
V = 18VP-P . . . . . . . . . . . . . . . . . . . . . . . 1.2MHz (Typ)
O
• Slew Rate
- 20dB Amplifier . . . . . . . . . . . . . . . . . . . . 70V/µs (Typ)
- Unity Gain Amplifier. . . . . . . . . . . . . . . . 25V/µs (Typ)
• Settling Time . . . . . . . . . . . . . . . . . . . . . . . . 0.6µs (Typ)
The CA3100 circuit contains both bipolar and PMOS transistors on a single monolithic chip.
• Output Current . . . . . . . . . . . . . . . . . . . . . . ±15mA (Min)
Part Number Information
• Single Capacitor Compensation
PART NUMBER
(BRAND)
• Offset Null Terminals
Applications
• Video Amplifiers
TEMP.
RANGE (oC)
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
• Fast Peak Detectors
• Meter Driver Amplifiers
• High Frequency Feedback Amplifiers
• Video Pre-Drivers
• Oscillators
• Multivibrators
• Voltage Controlled Oscillator
• Fast Comparators
Pinouts
CA3100
(PDIP, SOIC)
TOP VIEW
CA3100
(METAL CAN)
TOP VIEW
PHASE COMPENSATION
OFFSET
NULL
INV.
INPUT
NON-INV.
INPUT
1
8
2
7 V+
V-
4
3
+
PHASE
COMP AND
OFFSET NULL
INV.
INPUT
6 OUTPUT
5 OFFSET
NULL
1
-
2
NON-INV.
INPUT
PHASE
COMP TAB
8
7 V+
6
+
5
3
4
OUTPUT
OFFSET
NULL
V-
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© Harris Corporation 1999
3-1
File Number
625.4
CA3100
Absolute Maximum Ratings
Thermal Information
Supply Voltage (Between V+ and V- Terminals) . . . . . . . . . . . . . 36V
Differential Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Input Voltage to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . V+ to VOffset Terminal to V- Terminal Voltage . . . . . . . . . . . . . . . . . . ±0.5V
Output Current (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Thermal Resistance (Typical, Note 1)
θJA (oC/W) θJC (oC/W)
PDIP Package . . . . . . . . . . . . . . . . . . .
100
N/A
SOIC Package . . . . . . . . . . . . . . . . . . .
165
N/A
Metal Can Package . . . . . . . . . . . . . . .
170
85
Maximum Junction Temperature (Metal Can) . . . . . . . . . . . . . 175oC
Maximum Junction Temperature (Plastic Package) . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
(SOIC - Lead Tips Only)
Operating Conditions
Temperature Range
CA3100E, CA3100M. . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
CA3100T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC
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. θJA 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
TA = 25oC, VSUPPLY = ±15V, Unless Otherwise Specified
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
DC
Input Offset Voltage
VIO
VO = 0 ±0.1V
-
±1
±5
mV
Input Bias Current
IIB
VO = 0 ±1V
-
0.7
2
µA
Input Offset Current
IIO
VO = 0 ±1V
-
±0.05
±0.4
µA
CMRR ≥ 76dB
±12
+14
-13
-
V
Common Mode Input Voltage Range
VlCR
Common Mode Rejection Ratio
CMRR
VCM = ±12V
76
90
-
dB
Maximum Output Voltage
VOM+
Differential Input Voltage = 0 ±0.1V,
RL = 2kΩ
+9
+11
-
V
-9
-11
-
V
+15
+30
-
mA
-15
-30
-
mA
-
8.5
10.5
mA
VOMMaximum Output Current
IOM+
Differential Input Voltage = 0 + 0.1V,
RL = 250Ω
IOMSupply Current
Power Supply Rejection Ratio
I+
VO = 0 ±0.1V, RL ≥ 10kΩ
PSRR
∆V+ = ±1V, ∆V- = ±1V
60
70
-
dB
fT
CC = 0, VO = 0.3VP-P
-
38
-
MHz
f = 1kHz, VO = ±1V, (Note 3)
56
61
-
dB
f = 1MHz, CC = 0, VO = 10VP-P
36
42
-
dB
AV = 10, CC = 0, VI = 1V (Pulse)
50
70
-
V/µs
-
25
-
V/µs
0.8
1.2
-
MHz
AV = 1, CC = 10pF, VO = 18VP-P
-
0.4
-
MHz
DYNAMIC
Unity-Gain Crossover Frequency
Open Loop Voltage Gain
Slew Rate
AOL
SR
AV = 1, CC = 10pF, VI = 10V (Pulse)
Full Power Bandwidth (Note 4)
FPBW
AV = 10, CC = 0, VO = 18VP-P
Open Loop Differential Input Impedance
ZI
f = 1MHz
-
30
-
kΩ
Open Loop Output lmpedance
ZO
f = 1MHz
-
110
-
Ω
3-2
CA3100
TA = 25oC, VSUPPLY = ±15V, Unless Otherwise Specified (Continued)
Electrical Specifications
PARAMETER
SYMBOL
Wideband Noise Voltage (RTI)
eN (Total)
Settling Time (To Within ±50mV of 9V
Output Swing)
tS
TEST CONDITIONS
MIN
TYP
MAX
UNITS
BW = 1MHz, RS = 1kΩ
-
8
-
µVRMS
RL = 2kΩ, CL = 20pF
-
0.6
-
µs
NOTES:
3. Low frequency dynamic characteristic.
Slew Rate
4. Full Power Bandwidth = --------------------------- .
πVO P – P
Test Circuits
V+
VO
AOL =
VI
7
θOL
V+
7
0.1µF
VI
3
51Ω
VI
+
CA3100
3
20pF
-
2
HP606A
OR
EQUIV
5
1
0.1µF
WITH VI = 0 ADJ
POTENTIOMETER (RX)
TO GIVE
VO = 0 ± 0.1VDC
+1V
PULSE
tR ≤ 10ns
tWIDTH
≥ 1µs
4
51Ω
2kΩ
0.1
µF
2kΩ
CC
RX
SET VI TO GIVE
10kΩ
DESIRED VO LEVEL
AT TEST FREQUENCY NULL ADJUST
AT FREQUENCY > 1MHz VI
POTENTIOMETER AND VO MEASURED WITH
HF8405A VECTOR
VOLTMETER
6
-
2
V-
4
8
2kΩ
VO
+
CA3100
VO
6
SLOPE = SR
0.1µF
20
pF
220Ω
V-
FIGURE 2. SLEW RATE IN 10X AMPLIFIER TEST CIRCUIT
FIGURE 1. OPEN-LOOP VOLTAGE GAIN TEST CIRCUIT AND
OFFSET ADJUST CIRCUIT
AV = 100
10pF V+
+15V
1
3
VI
51Ω
2
+10V
PULSE
tR ≤ 10ns
tWIDTH ≥ 1µs
0.1µF
7
3
INPUT REFERRED
NOISE VOLTAGE
eNO
eNI =
100
3
SLOPE = SR
+
CA3100
VO
6
2
-
7
0.1µF
+
CA3100
6
-
POST AMPL. AND
2 POLE 1MHz
FILTER
2kΩ
5
4
HP400EL
VTVM
RS
420Ω
500pF
0.1µF
0.1µF
4
47Ω
eNO
-15V
V-
FIGURE 4. WIDEBAND INPUT NOISE VOLTAGE TEST CIRCUIT
FIGURE 3. FOLLOWER SLEW RATE TEST CIRCUIT
3-3
CA3100
Test Circuits
(Continued)
1pF
7
±1V
2kΩ
RL = 250Ω FOR IOM TEST
VO
IOM =
250Ω
+15V
+15V
9.1kΩ
3
+
CA3100
2kΩ
VO = ±9V
CA3100
VOM
+
3
6
4
8
4
1kΩ
0.1µF
-
2
6
-
2
7
VI = ±9V
RL
2kΩ
1kΩ
51Ω
1kΩ
0.1
µF
1
12pF
20pF
-15V
-15V
2kΩ
FIGURE 5. OUTPUT VOLTAGE SWING (VOM), OUTPUT
CURRENT SWING (IOM) TEST CIRCUIT
2kΩ
SETTLING POINT TO SCOPE
FIGURE 6. SETTLING TIME TEST CIRCUIT
Schematic Diagram
7
R4
750Ω
R6
12kΩ
Q2
R5
750Ω
Q4
NONINVERT
INPUT
+
3
Q5
Q8
-
Q11
D3
Q15
Q23
Q16
Q22
Q17
Q19
Q21
6
8
PHASE
COMP
Q13
Q10
R11
20Ω
R10
20Ω
OUTPUT
C1
10pF
D4
Q14
R7
10kΩ
D2
Q9
Q12
R1
2.5kΩ
Q6
Q7
INVERT
INPUT
2
Q3
Q1
V+
R8
200Ω
R9
200Ω
Q18
Q20
D5
OFFSET
NULL
5
R12
50Ω
V- 4
R14
1.1kΩ
R13
20Ω
R15
1.1kΩ
R16
150Ω
R17
600Ω
3-4
R19
600Ω
R18
150Ω
1
OFFSET
NULL
AND PHASE
COMP
CA3100
Typical Applications
+15V
+15V
3dB BANDWIDTH = 15MHz
ACL = 20dB
7
INPUT
0.1µF
0.33µF
3
3
6
220Ω
3kΩ
2N5320
+
CA3100
0.33µF
-
2
7
INPUT
OUTPUT
+
CA3100
4.7
kΩ
0.1µF
10Ω
6
-
2
3kΩ
1N5393
4
4
OUTPUT TO
TERMINATED
50Ω TRANSMISSION LINE
10Ω
0.1µF
3pF
-15V
220Ω
DELIVERS FOLLOWING
PEAK VOLTAGES TO
50Ω LINE:
2kΩ
FREQ
1MHz
2MHz
4MHz
6MHz
-3dB BANDWIDTH ≈ 20MHz
TOTAL INPUT NOISE
VOLTAGE REFERRED TO
INPUT ≈ 35µVRMS
3pF
VO
8V
5V
2V
1V
FIGURE 7. 20dB VIDEO AMPLIFIER
2kΩ
0.1µF
GAIN = 20dB
-15V
FIGURE 8. 20dB VIDEO LINE DRIVER
ZERO ADJ
200Ω
10pF
6
-
1N914
2
51kΩ
TEST
LEADS
2N2102
7
1
2
-
VO (DC) =
+VI PEAK
0.1µF
6
51kΩ
+
0.1
µF
-15V
1.2kΩ
1VRMS
FULL SCALE
1N914
+
CA3100
4
4
0.1µF
8
3
+
CA3100
3kΩ
INPUT
IMPEDANCE
≈ 50kΩ
0.1µF
7
3
+15V
20kΩ
+15V
VI(AC)
2N5322
220Ω
250Ω POT.
330Ω
1mA
FULL
SCALE
DC
METER
1000pF
FULL SCALE
CALIBRATION
ADJUST
-15V
FIGURE 9. FAST POSITIVE PEAK DETECTOR
FIGURE 10. 1MHz METER-DRIVER AMPLIFIER
Typical Performance Curves
|AOL|
12pF
50
40
0pF
CC = 24pF
30
CC = 24pF
20
θ
12pF -270
-225
0pF
-180
-135
24pF
-90
-45
0
0pF
10
12pF
0
0.001
0.01
0.1
1
FREQUENCY (MHz)
10
OPEN LOOP VOLTAGE GAIN (dB)
70
60
70
TA = 25oC
VS = ±15V
RL = 2kΩ
CL = 20pF
OPEN LOOP PHASE SHIFT (DEGREES)
OPEN LOOP VOLTAGE GAIN (dB)
80
VS = ±15V
RL = 2kΩ
CC = 0
60
50
TA = -55oC
40
30
25oC
125oC
20
10
0
0.001
100
0.01
0.1
1
FREQUENCY (MHz)
10
FIGURE 12. OPEN LOOP GAIN vs FREQUENCY
FIGURE 11. OPEN LOOP GAIN, OPEN LOOP PHASE SHIFT vs
FREQUENCY
3-5
100
CA3100
Typical Performance Curves
(Continued)
TA = 25oC
RL = 2kΩ
CL = 20pF
CC = 0
60
COMP CAP PINS 1 TO 8 (pF)
OPEN LOOP VOLTAGE GAIN (dB)
70
VS = ±18V
50
40
±12V
±10V
±7V
30
20
TA = 25oC
RL = 2kΩ
CL = 20pF
25
20
15
VS = ±15V
10
5
±10V
10
0
0.001
0
0.01
0.1
1
10
0
6 (0)
100
FREQUENCY (MHz)
FIGURE 13. OPEN LOOP GAIN vs FREQUENCY
350
OPEN LOOP OUTPUT IMPEDANCE (Ω)
SLEW RATE (V/µs)
80
60
40
VS = ±15V
±10V
0
5
10
15
20
TA = 25oC
VS = ±15V
300
+15V
7
200
3
CA3100
100
25
-
6
4
VO
1
10
K
10
20
-15V
30
40
FREQUENCY (MHz)
FIGURE 16. TYPICAL OPEN LOOP OUTPUT IMPEDANCE vs
FREQUENCY
106
30
HEWLETT
PACKARD
VECTOR
IMPEDANCE
METER4815A
5
0
FIGURE 15. SLEW RATE vs COMPENSATION CAPACITANCE
TA = 25oC
OPEN LOOP DIFFERENTIAL INPUT
IMPEDANCE (Ω)
TOTAL INPUT REFERRED NOISE VOLTAGE
(µVRMS)
+
2
COMP CAP PINS 1 TO 8 (pF)
BW AT 6dB = 1MHz
20
10
0
102
20 (19.1)
FIGURE 14. REQUIRED COMPENSATION CAPACITANCE vs
CLOSED LOOP GAIN
TA = 25oC
RL = 2kΩ
CL = 20pF
20
10 (6)
NONINVERTING GAIN (dB), INVERTING GAIN (dB)
CLOSED LOOP GAIN (dB)
TA = 25oC
VS = ±15V
105
104
103
103
0.1
104
1
10
FREQUENCY (MHz)
SOURCE RESISTANCE (Ω)
FIGURE 17. WIDEBAND INPUT NOISE VOLTAGE vs SOURCE
RESISTANCE
FIGURE 18. TYPICAL OPEN LOOP DIFFERENTIAL INPUT
IMPEDANCE vs FREQUENCY
3-6
100
CA3100
Typical Performance Curves
COMMON MODE INPUT VOLTAGE RANGE (V)
(Continued)
25
OUTPUT VOLTAGE (VP-P)
TA = 25oC
VS = ±15V
20
15
CIRCUIT FIG. 3
(FOLLOWER)
CIRCUIT FIG. 2
10X AMPL
10
5
0
0.01
0.1
1
10
TA = 25oC
15.0
12.5
10.0
+VICR
7.5
-VICR
5.0
2.5
0
100
±2.5
0
±5
±7.5
FREQUENCY (MHz)
±10
±12.5
±15
FIGURE 19. MAXIMUM OUTPUT VOLTAGE SWING vs
FREQUENCY
TA = 25oC
TA = 25oC
15
VOM -
12.5
SUPPLY CURRENT (mA)
MAXIMUM OUTPUT VOLTAGE (V)
±20
FIGURE 20. COMMON MODE INPUT VOLTAGE RANGE vs
SUPPLY VOLTAGE
15
VOM +
10
7.5
5
12.5
10
7.5
5
2.5
2.5
0
±17.5
SUPPLY VOLTAGE (V)
0
±2.5
±5
±7.5
±10
±12.5
±15
±17.5
0
±20
±2.5
0
±5
±7.5
SUPPLY VOLTAGE (V)
FIGURE 21. MAXIMUM OUTPUT VOLTAGE vs SUPPLY VOLTAGE
INPUT BIAS CURRENT (µA)
15.0
12.5
10.0
7.5
5.0
2.5
0
±12.5
±15
±17.5
±20
FIGURE 22. SUPPLY CURRENT vs SUPPLY VOLTAGE
TA = 25oC
0
±10
SUPPLY VOLTAGE (V)
±2.5
±5
±7.5
±10
±12.5
±15
±17.5
±20
SUPPLY VOLTAGE (V)
FIGURE 23. INPUT BIAS CURRENT vs SUPPLY VOLTAGE
3-7