HA-2544 [INTERSIL]
50MHz, Video Operational Amplifier; 50MHz的，视频业务扩增fi er
| 型号： | HA-2544 |
| 厂家： | 
Intersil |
| 描述： | 50MHz, Video Operational Amplifier |
| 文件： | 总11页 (文件大小：855K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HA-2544
Data Sheet
April 1999
File Number 2900.4
50MHz, Video Operational Amplifier
Features
The HA-2544 is a fast, unity gain stable, monolithic op amp
designed to meet the needs required for accurate
• Gain Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . 50MHz
• High Slew Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . 150V/µs
• Low Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
• Differential Gain Error. . . . . . . . . . . . . . . . . . . . . . . 0.03%
• Differential Phase Error . . . . . . . . . . . . . . . . 0.03 Degrees
• Gain Flatness at 10MHz. . . . . . . . . . . . . . . . . . . . . 0.12dB
reproduction of video or high speed signals. It offers high
voltage gain (6kV/V) and high phase margin (65 degrees)
while maintaining tight gain flatness over the video
bandwidth. Built from high quality Dielectric Isolation, the
HA-2544 is another addition to the Intersil series of high
speed, wideband op amps, and offers true video
performance combined with the versatility of an op amp.
Applications
The primary features of the HA-2544 include 50MHz Gain
Bandwidth, 150V/µs slew rate, 0.03% differential gain error
and gain flatness of just 0.12dB at 10MHz. High
performance and low power requirements are met with a
supply current of only 10mA.
• Video Systems
• Imaging Systems
• Video Test Equipment
• Radar Displays
• Pulse Amplifiers
• Signal Conditioning Circuits
Uses of the HA-2544 range from video test equipment,
guidance systems, radar displays and other precise imaging
systems where stringent gain and phase requirements have
previously been met with costly hybrids and discrete
circuitry. The HA-2544 will also be used in non-video
systems requiring high speed signal conditioning such as
data acquisition systems, medical electronics, specialized
instrumentation and communication systems.
• Data Acquisition Systems
Pinout
HA-2544 (CERDIP)
HA-2544C (PDIP)
TOP VIEW
1
2
3
4
8
7
6
5
BAL
-IN
+IN
V-
NC
Military (/883) product and data sheets are available upon
request.
V+
-
+
OUT
BAL
Ordering Information
PART NUMBER
(BRAND)
TEMP.
RANGE ( C)
PKG.
NO.
o
PACKAGE
8 Ld PDIP
HA3-2544C-5
HA7-2544-2
0 to 75
E8.3
F8.3A
-55 to 125 8 Ld CERDIP
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
1
HA-2544
Absolute Maximum Ratings
Thermal Information
o
o
Voltage Between V+ and V- Terminals. . . . . . . . . . . . . . . . . . . . 35V
Differential Input Voltage (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . 6V
Peak Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±40mA
Thermal Resistance (Typical, Note 2)
θ
( C/W)
θ
( C/W)
JA
JC
PDIP Package . . . . . . . . . . . . . . . . . . .
CERDIP Package. . . . . . . . . . . . . . . . .
92
135
N/A
50
o
Maximum Junction Temperature (Hermetic Packages) . . . . . 175 C
Maximum Junction Temperature (Plastic Packages) . . . . . . . 150 C
Maximum Storage Temperature Range. . . . . . . . . . -65 C to 150 C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300 C
o
Operating Conditions
o
o
Temperature Range
HA-2544C-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 C to 75 C
HA-2544-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 C to 125 C
o
o
o
o
o
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. To achieve optimum AC performance, the input stage was designed without protective diode clamps. Exceeding the maximum differential input
voltage results in reverse breakdown of the base-emitter junction of the input transistors and probable degradation of the input parameters
especially V , I
OS OS
and Noise.
2. θ is measured with the component mounted on an evaluation PC board in free air.
JA
Electrical Specifications
V
= ±15V, C ≤10pF, R = 1kΩ, Unless Otherwise Specified
SUPPLY L L
HA-2544-2
TYP
HA-2544C-5
TYP
TEST
CONDITIONS
TEMP
( C)
o
PARAMETER
INPUT CHARACTERISTICS
Offset Voltage
MIN
MAX
MIN
MAX
UNITS
25
-2, -5
-9
-
6
-
15
20
25
-
-
15
-
25
40
40
-
mV
mV
mV
-
-
-
-
-
-
o
Average Offset Voltage Drift (Note 7)
Bias Current
Full
25
-
10
7
-
10
9
µV/ C
-
15
20
-
-
18
30
-
µA
µA
Full
Full
25
-
-
-
-
o
Average Bias Current Drift (Note 7)
Offset Current
-
0.04
0.2
-
-
0.04
0.8
-
µA/ C
-
2
3
-
-
2
3
-
µA
µA
Full
Full
Full
25
-
-
o
Offset Current Drift
-
10
±11.5
90
3
-
10
±11.5
90
3
nA/ C
Common Mode Range
Differential Input Resistance
Differential Input Capacitance
Input Noise Voltage
±10
-
±10
-
V
50
-
-
50
-
-
kΩ
25
-
-
pF
f = 1kHz
25
-
20
2.4
1.5
4.6
-
-
20
2.4
1.5
4.6
-
nV/√Hz
pA/√Hz
Input Noise Current
f = 1kHz
25
-
-
-
-
Input Noise Voltage (Note 7)
0.1Hz to 10Hz
0.1Hz to 1MHz
25
-
-
-
-
µV
P-P
25
-
-
-
-
µV
RMS
TRANSFER CHARACTERISTICS
Large Signal Voltage Gain (Note 7)
V
= ±5V
25
Full
-2, -5
-9
3.5
2.5
75
75
+1
-
6
-
-
-
-
-
-
-
-
3
2
6
-
-
-
-
-
-
-
-
kV/V
kV/V
dB
O
Common Mode Rejection Ratio (Note 7)
∆V
CM
= ±10V
89
89
-
70
65
+1
-
89
89
-
dB
Minimum Stable Gain
25
V/V
MHz
MHz
Unity Gain Bandwidth (Note 7)
Gain Bandwidth Product (Note 7)
V
= ±100mV
= ±100mV
25
45
50
45
50
O
V
25
-
-
O
2
HA-2544
Electrical Specifications
V
= ±15V, C ≤10pF, R = 1kΩ, Unless Otherwise Specified (Continued)
SUPPLY
L
L
HA-2544-2
TYP
HA-2544C-5
TEST
CONDITIONS
TEMP
( C)
o
PARAMETER
Phase Margin
MIN
MAX
MIN
TYP
MAX
UNITS
25
-
65
-
-
65
-
Degrees
OUTPUT CHARACTERISTICS
Output Voltage Swing
Full Power Bandwidth (Note 6)
Full
25
25
25
25
±10
3.2
±25
±10
-
±11
4.2
±35
-
-
-
-
-
-
±10
3.2
±25
±10
-
±11
4.2
±35
-
-
-
-
-
-
V
MHz
mA
mA
Ω
Peak Output Current (Note 7)
Continuous Output Current (Note 7)
Output Resistance
Open Loop
20
20
TRANSIENT RESPONSE
Rise Time (Note 4)
25
25
25
25
-
7
-
-
-
-
-
7
-
-
-
-
ns
%
Overshoot (Note 4)
-
100
-
10
-
100
-
10
Slew Rate
150
120
150
120
V/µs
ns
Settling Time (Note 5)
VIDEO PARAMETERS R = 1kΩ (Note 8)
L
Differential Phase (Note 9)
Differential Gain (Notes 3, 9)
25
25
25
25
25
25
25
-
-
-
-
-
-
-
0.03
0.0026
0.03
0.10
0.12
0.1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.03
0.0026
0.03
0.10
0.12
0.1
-
-
-
-
-
-
-
Degree
dB
%
Gain Flatness
5MHz
dB
10MHz
dB
Chrominance to Luminance Gain (Note 10)
Chrominance to Luminance Delay (Note 10)
POWER SUPPLY CHARACTERISTICS
Supply Current
dB
7
7
ns
Full
-2, -5
-9
-
10
80
80
12
-
-
10
80
80
15
-
mA
dB
dB
Power Supply Rejection Ratio (Note 7)
V
= ±10V to ±20V
70
65
70
65
S
-
-
NOTES:
A
(dB)
D
---------------------
20
3.
.
– 1 × 100
A (%) = 10
D
4. For Rise Time and Overshoot testing, V
OUT
is measured from 0 to +200mV and 0 to -200mV.
5. Settling Time is specified to 0.1% of final value for a 10V step and A = -1.
V
Slew Rate
----------------------------
6. Full Power Bandwidth is guaranteed by equation: Full Power Bandwidth =
(V
= 5V) .
PEAK
2π V
PEAK
7. Refer to typical performance curve in Data Sheet.
8. The video parameter specifications will degrade as the output load resistance decreases.
9. Tested with a VM700A video tester, using a NTC-7 Composite input signal. For adequate test repeatability, a minimum warm-up of 2 minutes is
suggested. A = +1.
V
10. C-L Gain and C-L Delay was less than the resolution of the test equipment used which is 0.1dB and 7ns, respectively.
3
HA-2544
Test Circuits and Waveforms
NOTES:
V+
11. V = ±15V.
S
R
12. A = +1.
V
S
V
+
IN
13. R = 50Ω or 75Ω (Optional).
S
V
OUT
-
14. R = 1kΩ.
L
C
R
L
L
15. C < 10pF.
L
16. V for Large Signal = ±5V.
IN
V-
17. V for Small Signal = 0 to
IN
+200mV and 0 to -200mV.
FIGURE 1. TRANSIENT RESPONSE
V
IN
V
IN
V
OUT
V
OUT
V
= 0 to +10V
OUT
Vertical Scale: V = 5V/Div.; V
V
= 0 to +200mV
OUT
= 2V/Div.
IN
OUT
Vertical Scale: V = 100mV/Div.; V
= 100mV/Div.
IN OUT
Horizontal Scale: 100ns/Div.
Horizontal Scale: 100ns/Div.
LARGE SIGNAL RESPONSE
SMALL SIGNAL RESPONSE
SETTLING
POINT
BAL
1
2
3
4
8
7
6
5
NC
-IN
V+
5kΩ
2kΩ
5kΩ
2kΩ
-
+
+IN
OUT
V-
BAL
R
T
-
V
IN
V
OUT
+
NOTES:
18. A = -1.
V
19. Feedback and summing resistor ratios should be 0.1% matched.
20. HP5082-2810 clipping diodes recommended.
NOTE: Tested offset adjustment range is |V
OS
+ 1mV| minimum
referred to output. Typical range for R = 20kΩ is approximately
T
±30mV.
21. Tektronix P6201 FET probe used at settling point.
FIGURE 2. SETTLING TIME TEST CIRCUIT
FIGURE 3. OFFSET VOLTAGE ADJUSTMENT
4
HA-2544
Schematic Diagram
V+
R
R
R
4
1
2
Q
P24
Q
P6
Q
R
P57
Q
2A
P58
Q
P23
V-
Q
N22
R
R
8
7
Q
N36
Q
Q
P20
P5
C
Q
R
1
N21
9
Q
N50
R
28
Q
P19
V-
R
R
36
37
Q
Q
N51
N53
Q
Q
+INPUT
-INPUT
P32
P33
R
36Ω
32
Q
R
R
35
Q
N2
30
N1
D
34
OUTPUT
R
R
25
200Ω
24
200Ω
D
37
R
33
36Ω
Q
P44
Q
Q
Q
P54
N43
P52
D
D
38
39
R
10
D
D
41
40
V+
Q
N18
R
11
R
12
Q
N59
Q
Q
N10
N9
Q
P16
Q
N46
Q
N17
R
13
Q
P15
V+
R
14
Q
N14
Q
N55
Q
Q
R
Q
N12
N60
N11
Q
Q
N13
N48
5kΩ
5kΩ
R
R
R
R
R
31
15
16
18
R
38
39
17
V-
BAL
BAL
Application Information
The HA-2544 is a true differential op amp that is as versatile
as any op amp but offers the advantages of high unity gain
bandwidth, high speed and low supply current. More
important than its general purpose applications is that the
HA-2544 was especially designed to meet the requirements
found in a video amplifier system. These requirements
include fine picture resolution and accurate color rendition,
and must meet broadcast quality standards.
(NTSC) or 4.43MHz (PAL) color band without altering phase or
gain. The HA-2544’s key specifications aimed at meeting this
include high bandwidth (50MHz), very low gain flatness
(0.12dB at 10MHz), near unmeasurable differential gain and
differential phase (0.03% and 0.03 degrees), and low noise
(20nV/√Hz). The HA-2544 meets these guidelines.
The HA-2544 also offers the advantage of a full output voltage
swing of ±10V into a 1kΩ load. This equates to a full power
bandwidth of 2.4MHz for this ±10V signal. If video signal
In a video signal, the video information is carried in the
amplitude and phase as well as in the DC level. The amplifier
must pass the 30Hz line rate Iuminance level and the 3.58MHz
levels of ±2V maximum is used (with R = 1kΩ), the full power
L
bandwidth would be 11.9MHz without clipping distortion.
5
HA-2544
Another usage might be required for a direct 50Ω or 75Ω load
resistor (20Ω to 100Ω) before the capacitance effectively
where the HA-2544 will still swing this ±2V signal as shown in
the above display. One important note that must be realized is
that as load resistance decreases the video parameters are
also degraded. For optimal video performance a 1kΩ load is
recommended.
decouples this effect.
Stability/Phase Margin/Compensation
The HA-2544 has not sacrificed unity gain stability in
achieving its superb AC performance. For this device, the
phase margin exceeds 60 degrees at the unity crossing
point of the open loop frequency response. Large phase
margin is critical in order to reduce the differential phase and
differential gain errors caused by most other op amps.
Because this part is unity gain stable, no compensation pin
is brought out. If compensation is desired to reduce the
noise bandwidth, most standard methods may be used. One
method suggested for an inverting scheme would be a
series R-C from the inverting node to ground which will
reduce bandwidth, but not effect slew rate. If the user wishes
to achieve even higher bandwidth (>50MHz), and can
tolerate some slight gain peaking and lower phase margin,
experimenting with various load capacitance can be done.
If lower supply voltages are required, such as ±5V, many of
the characterization curves indicate where the parameters
vary. As shown the bandwidth, slew rate and supply current
are still very well maintained.
Prototyping and PC Board Layout
When designing with the HA-2544 video op amp as with
any high performance device, care should be taken to use
high frequency layout techniques to avoid unwanted
parasitic effects. Short lead lengths, low source impedance
and lower value feedback resistors help reduce unwanted
poles or zeros. This layout would also include ground plane
construction and power supply decoupling as close to the
supply pins with suggested parallel capacitors of 0.1µF and
0.001µF ceramic to ground.
Shown in Application 1 is an excellent Differential Input,
Unity Gain Buffer which also will terminate a cable to 75Ω
and reject common mode voltages. Application 2 is a
method of separating a video signal up into the Sync only
signal and the Video and Blanking signal. Application 3
shows the HA-2544 being used as a 100kHz High Pass
2-Pole Butterworth Filter. Also shown is the measured
frequency response curves.
In the noninverting configuration, the amplifier is sensitive
to stray capacitance (<40pF) to ground at the inverting
input. Therefore, the inverting node connections should be
kept to a minimum. Phase shift will also be introduced as
load parasitic capacitance is increased. A small series
Typical Applications
1K
SYNC ONLY
1N5711
1.21K
SHIELDED
1.21K
1K
CABLE
-
+
-
+
100
COMPOSITE
VIDEO
1.21K
HA-2544
1N5711
HA-2544
1K
1.21K
VIDEO AND
BLANK
FIGURE 4. APPLICATION 1, 75Ω DIFFERENTIAL INPUT BUFFER
FIGURE 5. APPLICATION 2, COMPOSITE VIDEO SYNC
SEPARATOR
0
-20
f
= 105.3kHz
0
-40
-60
2.1K
-80
180
135
90
-100
750pF
750pF
2.1K
-
+
INPUT
OUTPUT
45
HA-2544
0
-45
10M
1
f
=
O
10
100
1K
10K
100K
1M
2π (2.1K x 750pF)
FREQUENCY (Hz)
FIGURE 6. APPLICATION 3, 100kHz HIGH PASS 2-POLE
BUTTERWORTH FILTER
FIGURE 7. MEASURED FREQUENCY RESPONSE OF
APPLICATION 3
6
HA-2544
Typical Performance Curves
1000
1000
100
10
3
2
1
100
0
-1
-2
-3
-4
-5
-6
INPUT NOISE VOLTAGE
10
1
INPUT NOISE CURRENT
1
1
10
100
1K
10K
100K
-60 -40 -20
0
20
40
60
80 100 120 140
o
TEMPERATURE ( C)
FREQUENCY (Hz)
FIGURE 8. INPUT NOISE VOLTAGE AND NOISE CURRENT
vs FREQUENCY
FIGURE 9. INPUT OFFSET VOLTAGE vs TEMPERATURE
(3 TYPICAL UNITS)
15
R
= 1kΩ, V = ±15V
S
L
14
13
12
11
10
9
8
7
6
5
4
-60 -40 -20
0
20
40
60
80 100 120 140
o
0.1Hz to 10Hz, Noise Voltage = 0.97µV
TEMPERATURE ( C)
P-P
FIGURE 10. NOISE VOLTAGE (A = 1000)
FIGURE 11. INPUT BIAS CURRENT vs TEMPERATURE
V
92
90
88
86
84
82
80
78
76
74
9
R
= 1kΩ, V = ±15V
S
R
= 1kΩ, V = ±15V
S
L
L
-A
VOL
8
7
6
5
4
3
CMRR
+A
VOL
-PSRR
+PSRR
-60 -40 -20
0
20
40
60 80 100 120 140
o
-60 -40 -20
0
20 40
60 80 100 120 140
o
TEMPERATURE ( C)
TEMPERATURE ( C)
FIGURE 12. PSRR AND CMRR vs TEMPERATURE
FIGURE 13. OPEN LOOP GAIN vs TEMPERATURE
7
HA-2544
Typical Performance Curves (Continued)
12
10
8
R
= 1kΩ , V = ±15V
S
OPEN LOOP
L
80
60
40
20
0
6
A
= 100
= 10
= -1
+V
OUT
V
4
2
A
V
A
V
o
o
o
0
-2
-55 C
25 C
125 C
180
135
90
-4
OPEN LOOP
A
-6
-V
OUT
= 100
10K
-8
V
45
-10
-12
A
= 10
V
A
= -1
1M
V
0
5
7
9
11
13
15
100
1K
100K
10M
100M
SUPPLY VOLTAGE (±V)
FREQUENCY (Hz)
FIGURE 14. OUTPUT VOLTAGE SWING vs SUPPLY VOLTAGE
FIGURE 15. FREQUENCY RESPONSE AT VARIOUS GAINS
50
40
30
20
10
80
60
40
20
0
±15V
±8V
±5V
o
o
o
0
-10
-20
-30
-40
-50
-55 C
25 C
125 C
0
-45
-90
-135
-180
±15V
±8V
±5V
V
= ±100mV
OUT
5
7
9
11
13
15
100
1K
10K
100K
1M
10M
100M
SUPPLY VOLTAGE (±V)
FREQUENCY (Hz)
FIGURE 16. OUTPUT CURRENT vs SUPPLY VOLTAGE
FIGURE 17. OPEN LOOP RESPONSE
1.1
1.0
0.9
0.8
A
= +1, V = ±100mV
OUT
V
R
= 1kΩ , C = ≤ 10pF
L
L
6
3
0
0.7
o
125 C
o
-3
-6
0.6
0.5
0.4
0.3
0.2
0.1
25 C
0
o
-55 C
-45
-90
-135
-180
= ±15V
= ±8V
= ±5V
100
1K
10K
100K
1M
10M
100M
5
7
9
11
13
15
FREQUENCY (Hz)
SUPPLY VOLTAGE (±V)
FIGURE 18. SUPPLY CURRENT vs SUPPLY VOLTAGE
FIGURE 19. VOLTAGE FOLLOWER RESPONSE
o
(NORMALIZED TO V = ±15V AT 25 C)
S
8
HA-2544
Typical Video Performance Curves
0.200
0.150
0.100
0.050
0
0.004
0.003
0.002
0.001
0
SYSTEM
ALONE
f = 3.58MHz AND 5.00MHz
-0.050
-0.100
-0.150
-0.200
-0.250
-0.300
-0.001
f = 3.58MHz
-0.002
-0.003
-0.004
-0.005
-0.006
f = 5.00MHz
0
1
2
3
4
5
0
1
2
3
4
5
DC VOLTAGE LEVEL
DC VOLTAGE LEVEL
FIGURE 20. AC GAIN VARIATION vs DC OFFSET LEVELS
(DIFFERENTIAL GAIN)
FIGURE 21. AC PHASE VARIATION vs DC OFFSET LEVELS
(DIFFERENTIAL PHASE)
o
NTSC Method, R = 1kΩ,
NTSC Method, R = 1kΩ, Differential Gain <0.05% at T = 75 C
L
L
A
o
o
o
Differential Phase < 0.05 Degree at T = 75 C
No Visual Difference at T = -55 C or 125 C
A
A
o
o
No Visual Difference at T = -55 C or 125 C
A
FIGURE 22. DIFFERENTIAL GAIN
FIGURE 23. DIFFERENTIAL PHASE
INPUT
A
= +1, V = ±100mV
IN
V
R
= 1kΩ, C < 10pF
L
L
0.15
0.10
0.05
0
OUTPUT
-0.05
-0.10
-0.15
-0.20
o
NTSC Method, R = 1kΩ, C-L Delay <7ns at T = 75 C
L
A
o
o
No Visual Difference at T = -55 C or 125 C
A
Vertical Scale: Input = 100mV/Div., Output = 50mV/Div.
Horizontal Scale: 500ns/Div.
100
1K
10K
100K
1M
10M
100M
FREQUENCY (Hz)
FIGURE 24. GAIN FLATNESS
FIGURE 25. CHROMINANCE TO LUMINANCE DELAY
9
HA-2544
Typical Video Performance Curves (Continued)
C
(pF)
A
= +1, V = ±15V
= 1kΩ
BANDWIDTH PHASE
L
V
S
(-3dB)
(-3dB)
9
6
R
L
o
0
35.5
40.8
50.1
55.8
54.8
-77.1
o
V
10
20
30
40
-89.6
IN
o
-122.0
-150.7
-179.1
o
o
3
0
-3
0
-6
V
OUT
45
90
135
180
-9
+
V
IN
V
O
-12
-15
-18
-
50
1K
C
L
-250.000ns
0.00000ns
250.000ns
V
= 2.0V/Div., V = 2.0V/Div., Timebase = 50ns
OUT
IN
100K
1M
10M
100M
FIGURE 26. ±2V OUTPUT SWING (WITH R
= 75Ω,
FIGURE 27. BANDWIDTH vs LOAD CAPACITANCE
LOAD
FREQUENCY = 5.00MHz)
Die Characteristics
DIE DIMENSIONS:
SUBSTRATE POTENTIAL (POWERED UP):
80 mils x 64 mils x 19 mils
V-
2030µm x 1630µm x 483µm
TRANSISTOR COUNT:
METALLIZATION:
44
Type: Al, 1% Cu
Thickness: 16kÅ ±2kÅ
PROCESS:
Bipolar Dielectric Isolation
PASSIVATION:
Type: Nitride (Si N ) over Silox (SiO , 5% Phos.)
3
4
2
Silox Thickness: 12kÅ ± 2kÅ
Nitride Thickness: 3.5kÅ ±1.5kÅ
Metallization Mask Layout
HA-2544
BAL
V+
-IN
OUT
BAL
+IN
V-
10
HA-2544
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11
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