1
HA-2540
400MHz, Fast Settling Operational
Amplifier
The Intersil HA-2540 is a wideband, very high slew rate,
monolithic operational amplifier featuring superior speed and
bandwidth characteristics. Bipolar construction coupled with
dielectric isolation allows this truly differential device to
deliver outstanding performance in circuits where closed
loop gain is 10 or greater. Additionally, the HA-2540 has a
drive capability of
10V into a 1k
load. Other desirable
characteristics include low input voltage noise, low offset
voltage, and fast settling time.
A 400V/
s slew rate ensures high performance in video and
pulse amplification circuits, while the 400MHz gain-
bandwidth product is ideally suited for wideband signal
amplification. A settling time of 140ns also makes the
HA-2540 an excellent selection for high speed Data
Acquisition Systems.
Refer to Application Note AN541 and Application Note
AN556 for more information on High Speed Op Amp
applications. HA-2540/883 MIL-STD-883 data sheet is
available on request.
Pinout
HA-2540
(CERDIP, PDIP)
TOP VIEW
Features
Very High Slew Rate . . . . . . . . . . . . . . . . . . . . . . 400V/
s
Fast Settling Time. . . . . . . . . . . . . . . . . . . . . . . . . . . 140ns
Wide Gain Bandwidth (A
V
10) . . . . . . . . . . . . . . 400MHz
Power Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . 6MHz
Low Offset Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 8mV
Input Voltage Noise . . . . . . . . . . . . . . . . . . . . . . . 6nV/
Hz
Output Voltage Swing . . . . . . . . . . . . . . . . . . . . . . . .
10V
Monolithic Bipolar Construction
Applications
Pulse and Video Amplifiers
Wideband Amplifiers
High Speed Sample-Hold Circuits
Fast, Precise D/A Converters
For a lower power version of this product, please see
the HA-2850 datasheet.
NC
NC
NC
-IN
+IN
V-
NC
NC
NC
NC
V+
OUTPUT
NC
NC
1
2
3
4
5
6
7
14
13
12
11
10
9
8
+
-
Ordering Information
PART
NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG. NO.
HA1-2540-2
-55 to 125
14 Ld CERDIP
F14.3
HA1-2540-5
0 to 75
14 Ld CERDIP
F14.3
HA3-2540-5
0 to 75
14 Ld PDIP
E14.3
HA3-2540C-5
0 to 75
14 Ld PDIP
E14.3
Data Sheet
September 1998
File Number
2897.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Copyright
Intersil Corporation 1999
2
Absolute Maximum Ratings
Thermal Information
Voltage Between V+ and V- Terminals. . . . . . . . . . . . . . . . . . . . 35V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Output Current . . . . . . . . . . . . . . 33mA
RMS
Continuous, 50mA
PEAK
Operating Conditions
Temperature Range
HA-2540-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to 125
o
C
HA-2540/2540C-5 . . . . . . . . . . . . . . . . . . . . . . . . . . 0
o
C to 75
o
C
Thermal Resistance (Typical, Note 2)
JA
(
o
C/W)
JC
(
o
C/W)
CERDIP Package . . . . . . . . . . . . . . . . .
75
20
PDIP Package . . . . . . . . . . . . . . . . . . .
107
N/A
Maximum Internal Power Dissipation (Note 1)
Maximum Junction Temperature (Ceramic Package) . . . . . . 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
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. Maximum power dissipation with load conditions must be designed to maintain the maximum junction temperature below 175
o
C for the ceramic
package, and below 150
o
C for the plastic package. By using Application Note AN556 on Safe Operating Area Equations, along with the thermal
resistances, proper load conditions can be determined. Heat sinking is recommended above 75
o
C.
2.
JA
is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
V
SUPPLY
=
15V, R
L
= 1k
, C
L
< 10pF, Unless Otherwise Specified
PARAMETER
TEMP
(
o
C)
HA-2540-2
HA-2540-5
HA-2540C-5
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
INPUT CHARACTERISTICS
Offset Voltage
25
-
8
10
-
8
15
-
8
15
mV
Full
-
13
15
-
13
20
-
13
20
mV
Average Offset Voltage Drift
Full
-
20
-
-
20
-
-
20
-
V/
o
C
Bias Current
25
-
5
20
-
5
20
-
5
20
A
Full
-
-
25
-
-
25
-
-
25
A
Offset Current
25
-
1
6
-
1
6
-
1
6
A
Full
-
-
8
-
-
8
-
-
8
A
Input Resistance
25
-
10
-
-
10
-
-
10
-
k
Input Capacitance
25
-
1
-
-
1
-
-
1
-
pF
Common Mode Range
Full
10
-
-
10
-
-
10
-
-
V
Input Noise Current (f = 1kHz,
R
SOURCE
= 0
)
25
-
6
-
-
6
-
-
6
-
pA/
Hz
Input Noise Voltage (f = 1kHz,
R
SOURCE
= 0
)
25
-
6
-
-
6
-
-
6
-
nV/
Hz
TRANSFER CHARACTERISTICS
Large Signal Voltage Gain (Note 3)
25
10
15
-
10
15
-
7
10
-
kV/V
Full
5
-
-
5
-
-
5
-
-
kV/V
Common-Mode Rejection Ratio (Note 4)
Full
60
72
-
60
72
-
60
72
-
dB
Minimum Stable Gain
25
10
-
-
10
-
-
10
-
-
V/V
Gain Bandwidth Product (Notes 5, 6)
25
-
400
-
-
400
-
-
400
-
MHz
OUTPUT CHARACTERISTICS
Output Voltage Swing (Notes 3, 10)
Full
10
-
-
10
-
-
10
-
-
V
Output Current (Note 3)
25
10
20
-
10
20
-
10
20
-
mA
Output Resistance
25
-
30
-
-
30
-
-
30
-
Full Power Bandwidth (Notes 3, 7)
25
5.5
6
-
5.5
6
-
5.5
6
-
MHz
TRANSIENT RESPONSE (Note 8)
Rise Time
25
-
14
-
-
14
-
-
14
-
ns
Overshoot
25
-
5
-
-
5
-
-
5
-
%
Slew Rate
25
320
400
-
320
400
-
320
400
-
V/
s
Settling Time: 10V Step to 0.1%
25
-
140
-
-
140
-
-
140
-
ns
HA-2540
3
POWER REQUIREMENTS
Supply Current
Full
-
20
25
-
20
25
-
20
25
mA
Power Supply Rejection Ratio (Note 9)
Full
60
70
-
60
70
-
60
70
-
dB
NOTES:
3. R
L
= 1k
, V
O
=
10V.
4. V
CM
=
10V.
5. V
O
= 90mV.
6. A
V
= 10.
7. Full power bandwidth guaranteed based on slew rate measurement using:
.
8. Refer to Test Circuits section of the data sheet.
9. V
SUPPLY
= +5V, -15V and +15V, -5V.
10. Guaranteed range for output voltage is
10V. Functional operation outside of this range is not guaranteed.
Electrical Specifications
V
SUPPLY
=
15V, R
L
= 1k
, C
L
< 10pF, Unless Otherwise Specified (Continued)
PARAMETER
TEMP
(
o
C)
HA-2540-2
HA-2540-5
HA-2540C-5
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
FPBW
Slew Rate
2
V
PEAK
---------------------------
=
Test Circuits and Waveforms
FIGURE 1. LARGE AND SMALL SIGNAL RESPONSE TEST CIRCUIT
LARGE SIGNAL RESPONSE
SMALL SIGNAL RESPONSE
FIGURE 2. SETTLING TIME TEST CIRCUIT
V
IN
900
100
V
OUT
-
+
NOTES:
11. A
V
= +10.
12. C
L
10pF.
A
B
Vertical Scale: A = 0.5V/Div., B = 5.0V/Div.
Horizontal Scale: 50ns/Div.
Vertical Scale: Input = 10mV/Div.; Output = 50mV/Div.
Horizontal Scale: 20ns/Div.
0.001
F
1
F
0.001
F
1
F
2k
5k
500
200
V+
V-
-
+
PROBE
MONITOR
OUTPUT
INPUT
SETTLE
POINT
NOTES:
13. A
V
= -10.
14. Load Capacitance should be less than 10pF. Turn on time delay
typically 4ns.
15. It is recommended that resistors be carbon composition and the
feedback and summing network ratios be matched to 0.1%.
16. SETTLE POINT (Summing Node) capacitance should be less
than 10pF. For optimum settling time results, it is recommended
that the test circuit be constructed directly onto the device pins. A
Tektronix 568 Sampling Oscilloscope with S-3A sampling heads is
recommended as a settle point monitor.
HA-2540
4
Schematic Diagram
OUTPUT
R
3
R
24
R
13
Q
P28
Q
P18
Q
P19
Q
P17
Q
P22
Q
P6
Q
P5
Q
P25
Q
P3
Q
P4
R
6
R
7
R
8
R
9
Q
N1
Q
N2
R
11
R
12
R
14
R
25
V+
R
10
Q
N14
Q
N20
Q
N15
Q
N25
Q
N29
V+
R
21
R
22
Q
P23
Q
N21
+ INPUT
- INPUT
Z
1
D
Z1
D
Z2
Q
P8
Q
N9
Q
N7
Q
N10
Q
N13
R
4
R5
C
2
V+
R
19
R
18
Q
N16
Q
N12
R
17
R
16
R
15
Q
P11
C
1
R
C2
V-
V-
V-
R
23
R
1
R
2
Typical Applications
FIGURE 3. WIDEBAND SIGNAL SPLITTER
FIGURE 4. BOOTSTRAPPING FOR MORE OUTPUT CURRENT
AND VOLTAGE SWING
Refer to Application Note AN541 For Further Application Information.
HA-2540
+
200
V+
V-
2K
2K
OFFSET
ADJUST
-
NOTE: With one HA-2540 and two low capacitance
switching diodes, signals exceeding 10MHz can be
separated. This circuit is most useful for full wave
rectification, AM detectors or sync generation.
NOTES:
17. Used for experimental purposes. C
F
3pF.
18. C
1
is optional (0.001
F
0.01
F ceramic).
19. R
5
is optional and can be utilized to reduce input signal
amplitude and/or balance input conditions. R
5
= 500
to 1k
.
HA-2540
V+
V-
C
F
(NOTE 17)
C
1
(NOTE 18)
1K
1K
R
5
10K
R
1
4K
R
2
4K
SIGNAL
OUT
0.1
F
R
3
4K
R
4
4K
(NOTE 19)
-
+
HA-2540
5
Typical Performance Curves
FIGURE 5. CLOSED LOOP FREQUENCY RESPONSE
FIGURE 6. OUTPUT VOLTAGE SWING vs FREQUENCY
FIGURE 7. OUTPUT VOLTAGE SWING vs LOAD RESISTANCE
FIGURE 8. NORMALIZED AC PARAMETERS vs TEMPERATURE
FIGURE 9. SETTLING TIME FOR VARIOUS OUTPUT STEP
VOLTAGES
FIGURE 10. POWER SUPPLY CURRENT vs TEMPERATURE
FREQUENCY (Hz)
CLOSED LOOP GAIN (dB)
100
1K
10K
100K
1M
10M
100M
-10
10
30
40
50
60
70
80
90
100
0
20
FREQUENCY (Hz)
OUTPUT V
O
L
T
A
GE SWING (V
P-P
)
1K
10K
100K
1M
10M
100M
0
4
8
12
16
20
24
28
V
S
=
15V
V
S
=
10V
V
S
=
5V
OUTPUT V
O
L
T
A
GE SWING (V
P-P
)
RESISTANCE (
)
0
200
400
600
800
1K
1.2K
0
4
8
12
16
24
28
20
TEMPERATURE (
o
C)
NORMALIZED P
ARAMETERS REFERRED T
O
V
ALUES A
T
25
o
C
-80
-40
0
40
80
120
160
SLEW RATE
BANDWIDTH
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
SETTLING TIME (ns)
OUTPUT V
O
L
T
A
GE STEP (V)
0
80
40
120
160
200
240
-10
-8
-6
-4
-2
2
4
6
8
10
10mV
1mV
10mV
1mV
0
TEMPERATURE (
o
C)
-80
-40
0
40
80
120
160
0
4
8
12
16
24
28
20
SUPPL
Y CURRENT (mA)
V
S
=
15V
V
S
=
5V
HA-2540
6
Die Characteristics
FIGURE 11. INPUT OFFSET VOLTAGE AND BIAS CURRENT vs
TEMPERATURE
FIGURE 12. INPUT NOISE VOLTAGE AND NOISE CURRENT vs
FREQUENCY
FIGURE 13. BROADBAND NOISE (0.1Hz TO 1MHz)
FIGURE 14. COMMON MODE REJECTION RATIO vs FREQUENCY
FIGURE 15. POWER SUPPLY REJECTION RATIO vs FREQUENCY
FIGURE 16. OPEN LOOP GAIN/PHASE vs FREQUENCY
Typical Performance Curves
(Continued)
TEMPERATURE (
o
C)
-80
-40
0
40
80
120
160
0
2
4
6
8
12
14
10
INPUT BIAS CURRENT (
A)
BIAS CURRENT
OFFSET VOLTAGE
0
1
2
3
4
6
7
5
|V
IO
| OFFSET V
O
L
T
A
GE (mV)
0
5
10
15
20
25
100
1K
10K
100K
10
0
10
20
30
40
50
NOISE V
O
L
T
A
GE (nV/
Hz)
NOISE CURRENT (pA/
Hz)
VOLTAGE
CURRENT NOISE
R
SOURCE
= 0
, V
S
=
15
NOISE
FREQUENCY (Hz)
+40
V
+20
V
+10
V
0
V
-10
V
-20
V
-30
V
-40
V
+30
V
Vertical Scale: 10mV/Div.
Horizontal Scale: 50ms/Div.
FREQUENCY (Hz)
1K
10K
100K
1M
10M
0
20
40
60
80
100
120
V
S
=
15, R
L
= 1K
CMRR (dB)
FREQUENCY (Hz)
1K
10K
100K
1M
PSRR (dB)
0
20
40
60
80
100
POSITIVE SUPPLY
NEGATIVE SUPPLY
10M
FREQUENCY (Hz)
100
10K
100K
1M
10M
100M
1K
-10
0
20
40
60
80
100
OPEN LOOP GAIN (dB)
225
180
135
90
45
0
GAIN
PHASE
PHASE (DEGREES)
HA-2540
7
All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification.
Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time with-
out notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries 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 Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see web site http://www.intersil.com
DIE DIMENSIONS:
62 mils x 76 mils x 19 mils
1575
mx 1930
m x 483
m
METALLIZATION:
Type: Al, 1% Cu
Thickness: 16k
2k
PASSIVATION:
Type: Nitride (Si
3
N
4
) over Silox (SiO
2
, 5% Phos.)
Silox Thickness: 12k
2k
Nitride Thickness: 3.5k
1.5k
SUBSTRATE POTENTIAL (Powered Up):
V-
TRANSISTOR COUNT:
30
PROCESS:
Bipolar Dielectric Isolation
Metallization Mask Layout
HA-2540
V+
OUTPUT
V-
+IN
-IN
HA-2540
PDF 
ZIP