DATASHEET

HA-2841
CT
ODU O DUCT
R
P
PR
TE
OL E
U TE
OBS UBSTIT -2544
E S 42, HA
8 Sheet
SIBL Data
S
O
HA- 2
P
®
May 2003
FN2843.4
50MHz, Fast Settling, Unity Gain Stable,
Video Operational Amplifier
Features
The HA-2841 is a wideband, unity gain stable, operational
amplifier featuring a 50MHz unity gain bandwidth, and
excellent DC specifications. This amplifier’s performance is
further enhanced through stable operation down to closed
loop gains of +1, the inclusion of offset null controls, and by
its excellent video performance.
• Low AC Variability Over Process and Temperature
• Low Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
• Unity Gain Bandwidth. . . . . . . . . . . . . . . . . . . . . . . 50MHz
• Gain Flatness to 10MHz. . . . . . . . . . . . . . . . . . . . . 0.05dB
• High Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . 240V/µs
• Low Offset Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . 1mV
The capabilities of the HA-2841 are ideally suited for high
speed pulse and video amplifier circuits, where high slew
rates and wide bandwidth are required. Gain flatness of
0.05dB, combined with differential gain and phase
specifications of 0.03%, and 0.03 degrees, respectively,
make the HA-2841 ideal for component and composite video
applications.
A zener/nichrome based reference circuit, coupled with
advanced laser trimming techniques, yields a supply current
with a low temperature coefficient and low lot-to-lot
variability. Tighter ICC control translates to more consistent
AC parameters ensuring that units from each lot perform the
same way, and easing the task of designing systems for
wide temperature ranges. Critical AC parameters, Slew Rate
and Bandwidth, each vary by less than ±5% over the
industrial temperature range (see characteristic curves).
For military grade product, refer to the HA-2841/883 data
sheet.
HA-2841 (PDIP, SOIC)
TOP VIEW
BAL
1
-IN
2
+IN
3
V-
4
+
1
8
BAL
7
V+
6
OUT
5
NC
• Fast Settling Time (0.1%). . . . . . . . . . . . . . . . . . . . . . 90ns
• Differential Gain/Phase . . . . . . . . . . 0.03%/0.03 Degrees
• Enhanced Replacement for AD841 and EL2041
Applications
• Pulse and Video Amplifiers
• Wideband Amplifiers
• High Speed Sample-Hold Circuits
• Fast, Precise D/A Converters
• High Speed A/D Input Buffer
Part Number Information
PART NUMBER
(BRAND)
TEMP.
RANGE (oC)
PACKAGE
PKG.
NO.
HA3-2841-5
0 to 75
8 Ld PDIP
E8.3
HA9P2841-5
(H28415)
0 to 75
8 Ld SOIC
M8.15
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
HA-2841
Absolute Maximum Ratings
Thermal Information
Voltage Between V+ and V- Terminals . . . . . . . . . . . . . . . . . . . 35V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Output Current (Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
10mA (50% Duty Cycle)
Thermal Resistance (Typical, Note 2)
Operating Conditions
Temperature Range
HA-2841-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 75oC
Recommended Supply Voltage Range . . . . . . . . . . . ±6.5V to ±15V
θJA (oC/W)
8 Lead PDIP Package . . . . . . . . . . . . . . . . . . . . . . .
92
8 Lead SOIC Package . . . . . . . . . . . . . . . . . . . . . . .
157
Maximum Junction Temperature (Die, Note 1). . . . . . . . . . . . . .175oC
Maximum Junction Temperature (Plastic Package) . . . . . . . .150oC
Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
(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. Maximum power dissipation, including output load, must be designed to maintain the maximum junction temperature below 150oC for plastic
packages.
2. θJA is measured with the component mounted on an evaluation PC board in free air.
3. VO = ±10V, RL unconnected. Output duty cycle must be reduced if IOUT >10mA.
VSUPPLY = ±15V, RL = 1kΩ , CL ≤ 10pF, Unless Otherwise Specified
Electrical Specifications
PARAMETER
TEST CONDITIONS
HA-2841-5
TEMP.
(oC)
MIN
TYP
MAX
UNITS
INPUT CHARACTERISTICS
Offset Voltage (Note 10)
25
-
1
3
mV
Full
-
-
6
mV
Average Offset Voltage Drift
Full
-
14
-
µV/oC
Bias Current (Note 10)
25
-
5
10
µA
Full
-
8
15
µA
Full
-
45
-
nA/oC
Average Bias Current Drift
25
-
0.5
1.0
µA
Full
-
-
1.5
µA
Input Resistance
25
-
170
-
kΩ
Input Capacitance
25
-
1
-
pF
Offset Current
Full
±10
-
-
V
Input Noise Voltage
10Hz to 1MHz
25
-
16
-
µVRMS
Input Noise Voltage (Note 10)
f = 1kHz, RSOURCE = 0Ω
25
-
16
-
nV ⁄ Hz
Input Noise Current (Note 10)
f = 1kHz, RSOURCE = 10kΩ
25
-
2
-
pA ⁄ Hz
Large Signal Voltage Gain
VO = ±10V
25
25
50
-
kV/V
Full
10
30
-
kV/V
Common-Mode Rejection Ratio (Note 10)
VCM = ±10V
Full
80
95
-
dB
Minimum Stable Gain
25
1
-
-
V/V
Gain Bandwidth Product (Notes 5, 10)
25
-
50
-
MHz
Common Mode Range
TRANSFER CHARACTERISTICS
Gain Flatness to 5MHz (Note 10)
RL ≥ 75Ω
25
-
±0.015
-
dB
Gain Flatness to 10MHz (Note 10)
RL ≥ 500Ω
25
-
±0.05
-
dB
Full
±10
±10.5
-
V
Full
15
30
-
mA
25
-
8.5
-
Ω
OUTPUT CHARACTERISTICS
Output Voltage Swing (Note 10)
Output Current (Note 10)
Note 3
Output Resistance
Full Power Bandwidth (Note 6)
VO = ±10V
25
3.2
3.8
-
MHz
Differential Gain (Note 10)
Note 4
25
-
0.03
-
%
2
HA-2841
VSUPPLY = ±15V, RL = 1kΩ , CL ≤ 10pF, Unless Otherwise Specified (Continued)
Electrical Specifications
TEMP.
(oC)
HA-2841-5
MIN
TYP
MAX
UNITS
Differential Phase (Note 10)
Note 4
25
-
0.03
-
Degrees
Harmonic Distortion (Note 10)
VO = 2VP-P, f = 1MHz, AV = +1
25
-
>83
-
dBc
Rise Time
25
-
3
-
ns
Overshoot
25
-
33
-
%
PARAMETER
TEST CONDITIONS
TRANSIENT RESPONSE (Note 7)
Slew Rate (Notes 9, 10)
AV = +1
25
200
240
-
V/µs
Settling Time
10V Step to 0.1%
25
-
90
-
ns
25
-
10
-
mA
Full
-
10
11
mA
Full
70
80
-
dB
POWER REQUIREMENTS
Supply Current (Note 10)
Power Supply Rejection Ratio (Note 10)
Note 8
NOTES:
4. Differential gain and phase are measured with a VM700A video tester, using a NTC-7 composite VITS. RF = R1 = 1kΩ , RL = 700Ω.
5. AVCL = 1000, Measured at unity gain crossing.
Slew Rate
6. Full Power Bandwidth guaranteed based on slew rate measurement using FPBW = --------------------------( V PEAK = 10V ) .
2πV PEAK
7. Refer to Test Circuit section of data sheet.
8. VSUPPLY = ±10V to ±20V.
9. This parameter is not tested. The limits are guaranteed based on lab characterization, and reflect lot-to-lot variation.
10. See “Typical Performance Curves” for more information.
Test Circuits and Waveforms
IN
+
NOTES:
OUT
-
11. VS = ±15V.
12. AV = +1.
1kΩ
13. CL < 10pF.
TEST CIRCUIT
INPUT
INPUT
OUTPUT
OUTPUT
Input = 5V/Div.
Output = 5V/Div.
50ns/Div.
LARGE SIGNAL RESPONSE
3
Input = 100mV/Div.
Output = 100mV/Div.
50ns/Div.
SMALL SIGNAL RESPONSE
HA-2841
Test Circuits and Waveforms
5kΩ
(Continued)
SETTLING
POINT
5kΩ
2kΩ
2kΩ
V+
-
VIN
VOUT
+
NOTES:
14.
15.
16.
17.
18.
V+
V-
AV = -1.
Load Capacitance should be less than 10pF.
Feedback and summing resistors must be matched to 0.1%.
Tektronix P6201 FET probe used at settling point.
HP5082-2810 clipping diodes recommended.
SETTLING TIME TEST CIRCUIT
Typical Applications
5kΩ
+
BAL
OUT
V-
SUGGESTED OFFSET VOLTAGE ADJUSTMENT
(Also see Application Note AN550)
Application 1 - High Power Amplifiers and Buffers
High power amplifiers and buffers are in use in a wide variety
of applications. Many times the “high power” capability is
needed to drive large capacitive loads as well as low value
resistive loads. In both cases the final driver stage is usually a
power transistor of some type, but because of their inherently
low gain, several stages of pre-drivers are often required. The
HA-2841, with its 15mA output rating, is powerful enough to
drive a power transistor without additional stages of current
amplification. This capability is well demonstrated with the
high power buffer circuit in Figure 1.
The HA-2841 acts as the pre-driver to the output power
transistor. Together, they form a unity gain buffer with the
ability to drive three 50Ω coaxial cables in parallel, each with
a capacitance of 2000pF. The total combined load is 16.6Ω
and 6000pF capacitance.
ordinary amplifier applications since video signals contain
precise DC levels which must be retained.
The addition of a clamping circuit restores DC levels at the
output of an amplifier stage. The circuit shown in Figure 2
utilizes the HA-5320 sample and hold amplifier as the DC
clamp. Also shown is a 3.57MHz trap in series, which will
block the color burst portion of the video signal and allow the
DC level to be amplified and restored.
1kΩ
HA-5320
1kΩ
HA-2841
3.57MHz
TRAP
1kΩ
1kΩ
1kΩ
532pF
50Ω
75Ω
+
R1
R2
HA-2841
D3
-
2N5886
1K
R3
D1
FIGURE 2. VIDEO DC RESTORER
HP2835
100Ω
HP2835
Prototyping Guidelines
D2
LOAD 16.6Ω; 6000pF
OR 12.5Ω; 6000pF
FIGURE 1. DRIVING POWER TRANSISTORS TO GAIN
ADDITIONAL CURRENT BOOSTING
For best overall performance in any application, it is
recommended that high frequency layout techniques be
used. This should include:
1. Mounting the device through a ground plane.
2. Connecting unused pins (NC) to the ground plane.
Application 2 - Video
One of the primary uses of the HA-2841 is in the area of
video applications. These applications include signal
construction, synchronization addition and removal, as well
as signal modification. A wide bandwidth device such as the
HA-2841 is well suited for use in this class of amplifier. This,
however, is a more involved group of applications than
4
3. Mounting feedback components on Teflon standoffs
and/or locating these components as close to the device
as possible.
4. Placing power supply decoupling capacitors from device
supply pins to ground.
HA-2841
Typical Performance Curves
TA = 25oC, VSUPPLY = ±15V, RL = 1kΩ, CL < 10pF, Unless Otherwise Specified
60
40
AVCL
= 1000 AVCL
= 100 AVCL
= 10
20
0
AVCL = 1
0
90
AVCL
= 1000
OPEN
LOOP
AVCL
= 100
AVCL AVCL
= 10
=1
180
GAIN BANDWIDTH PRODUCT (MHz)
60
OPEN
LOOP
80
PHASE (DEGREE)
GAIN (dB)
100
55
50
45
40
35
30
1K
10K
100K
1M
10M
6
100M 500M
7
8
FREQUENCY (Hz)
10
11
12
13
14
15
FIGURE 4. GAIN BANDWIDTH PRODUCT vs SUPPLY VOLTAGE
65
100
60
90
55
80
CMRR (dB)
GAIN BANDWIDTH PRODUCT (MHz)
FIGURE 3. FREQUENCY RESPONSE FOR VARIOUS GAINS
50
45
40
70
60
50
35
30
-60
9
SUPPLY VOLTAGE (±V)
40
-40
-20
0
20
40
60
80
100
120
30
100
140
1K
TEMPERATURE (oC)
10K
100K
1M
10M
FREQUENCY (Hz)
FIGURE 5. GAIN BANDWIDTH PRODUCT vs TEMPERATURE
90
FIGURE 6. CMRR vs FREQUENCY
40
120
NOISE VOLTAGE (nV/√Hz)
80
±PSRR
PSRR (dB)
70
60
50
40
30
90
20
60
NOISE VOLTAGE
30
NOISE CURRENT
10
30
20
100
0
0
1K
10K
100K
FREQUENCY (Hz)
FIGURE 7. PSRR vs FREQUENCY
5
1M
10M
10
100
1K
10K
FREQUENCY (Hz)
FIGURE 8. INPUT NOISE vs FREQUENCY
100K
NOISE CURRENT (pA/√Hz)
100
HA-2841
Typical Performance Curves
TA = 25oC, VSUPPLY = ±15V, RL = 1kΩ, CL < 10pF, Unless Otherwise Specified (Continued)
290
290
280
270
NEGATIVE
SLEW RATE
260
POSITIVE
SLEW RATE
280
SLEW RATE (V/µs)
SLEW RATE (V/µs)
POSITIVE
SLEW RATE
270
NEGATIVE
SLEW RATE
260
250
250
240
-60
-40
-20
0
20
40
60
80
100
120
7
140
8
9
10
TEMPERATURE (oC)
11
12
13
14
15
SUPPLY VOLTAGE (±V)
FIGURE 9. SLEW RATE vs TEMPERATURE
FIGURE 10. SLEW RATE vs SUPPLY VOLTAGE
9.0
1.5
1.0
OFFSET
VOLTAGE
7.0
0.5
6.0
0.0
-0.5
5.0
BIAS
CURRENT
4.0
3.0
-60
-1.0
SUPPLY CURRENT (mA)
8.0
INPUT OFFSET VOLTAGE (mV)
INPUT BIAS CURRENT (µA)
12
-20
0
20
40
60
80
100
120
8
125oC
6
-55oC
4
25οC
2
-1.5
-40
10
5
140
6
7
8
TEMPERATURE (oC)
FIGURE 11. INPUT OFFSET VOLTAGE AND INPUT BIAS
CURRENT vs TEMPERATURE
10
±15V, 75Ω
7.5
±8V, 1kΩ
5
2.5
0
-60
±8V, 75Ω
-40
-20
0
20
40
60
80
100
120
140
TEMPERATURE (oC)
FIGURE 13. POSITIVE OUTPUT SWING vs TEMPERATURE
6
11
12
13
14
15
0
±15V, 1kΩ
±15V, 150Ω
±8V, 150Ω
10
FIGURE 12. SUPPLY CURRENT vs SUPPLY VOLTAGE
NEGATIVE OUTPUT SWING (V)
POSITIVE OUTPUT SWING (V)
12.5
9
SUPPLY VOLTAGE (±V)
-2.5
±8V, 150Ω
±15V, 75Ω
±8V, 75Ω
-5
±8V, 1kΩ
-7.5
±15V, 150Ω
-10
-12.5
-60
±15V, 1kΩ
-40
-20
0
20
40
60
80
100
120 140
TEMPERATURE (oC)
FIGURE 14. NEGATIVE OUTPUT SWING vs TEMPERATURE
HA-2841
Typical Performance Curves
TA = 25oC, VSUPPLY = ±15V, RL = 1kΩ, CL < 10pF, Unless Otherwise Specified (Continued)
VSUPPLY = ±15V
25
VO = 10VP-P
-30
20
-40
THD (dBc)
OUTPUT VOLTAGE SWING (VP-P)
-20
15
VSUPPLY = ±8V
10
-50
VO = 1VP-P
VO = 2VP-P
-60
5
-70
0
-80
VO = 0.5VP-P
1K
10K
100K
1M
10M
-90
100K
100M
1M
FIGURE 15. MAXIMUM UNDISTORTED OUTPUT SWING vs
FREQUENCY
FIGURE 16. TOTAL HARMONIC DISTORTION vs FREQUENCY
0.16
VO = 5VP-P
0.14
-30
DIFFERENTIAL GAIN (%)
THIRD INTERMOD PRODUCT (dBc)
-20
-40
VO = 2VP-P
VO = 1VP-P
-50
VO = 0.5VP-P
-60
-70
0.12
0.10
VSUPPLY = ±8V
VSUPPLY = ±10V
0.08
VSUPPLY = ±15V
0.06
0.04
-80
VO = 0.25VP-P
-90
500K
1M
0.02
100
10M
200
300
FREQUENCY (Hz)
500
600
700
800
900
1000
FIGURE 18. DIFFERENTIAL GAIN vs LOAD RESISTANCE
0.08
0.22
400
LOAD RESISTANCE (Ω)
FIGURE 17. INTERMODULATION DISTORTION vs FREQUENCY
(TWO TONE)
VSUPPLY = ±8V
AVCL = 1
RL = 75Ω
0.07
0.20
GAIN FLATNESS (±dB)
DIFFERENTIAL PHASE (DEGREES)
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
0.18
0.16
0.14
0.12
0.10
0.08 VSUPPLY = ±10V
0.06 V
SUPPLY = ±15V
0.04
0.06
RL = 150Ω
0.05
RL = 500Ω
0.04
0.03
0.02
RL = 1000Ω
0.01
0.02
0.00
0
100
200
300
400
500 600
700
800
900 1000
LOAD RESISTANCE (Ω)
FIGURE 19. DIFFERENTIAL PHASE vs LOAD RESISTANCE
7
0
1M
2M
3M
4M
5M
6M
7M
8M
9M
FREQUENCY (Hz)
FIGURE 20. GAIN FLATNESS vs FREQUENCY
10M
HA-2841
Die Characteristics
DIE DIMENSIONS:
SUBSTRATE POTENTIAL (Powered Up):
77 mils x 81 mils x 19 mils
1960µm x 2060µm x 483µm
VTRANSISTOR COUNT:
METALLIZATION:
43
Type: Aluminum, 1% Copper
Thickness: 16kÅ ±2kÅ
PROCESS:
High Frequency Bipolar Dielectric Isolation
PASSIVATION:
Type: Nitride over Silox
Silox Thickness: 12kÅ ±2kÅ
Nitride thickness: 3.5kÅ ±1kÅ
Metallization Mask Layout
HA-2841
BAL
BAL
-IN
V+
OUT
+IN
V-
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
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.
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