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U CT PROD ENT OLETE REPLACEM r at OBS e nt e D ED MMEN al Support C om/tsc RE C O .c ic NO Datachn November 19, 2004 e Sheetww.intersil t o ur T contac TERSIL or w IN 1-888(R)
HA-2541
FN2898.4
40MHz, Fast Settling, Unity Gain Stable, Operational Amplifier
The HA-2541 is the first unity gain stable monolithic operational amplifier to achieve 40MHz unity gain bandwidth. A major addition to the Intersil series of high speed, wideband op amps, the HA-2541 is designed for video and pulse applications requiring stable amplifier response at low closed loop gains. The uniqueness of the HA-2541 is that its slew rate and bandwidth characteristics are specified at unity gain. Historically, high slew rate, wide bandwidth and unity gain stability have been incompatible features for a monolithic operational amplifier. But features such as 250V/s slew rate and 40MHz unity gain bandwidth clearly show that this is not the case for the HA-2541. These features, along with 90ns settling time to 0.1%, make this product an excellent choice for high speed data acquisition systems. MIL-STD-883 product and data sheets are available upon request. For further application suggestions on the HA-2541, please refer to Application Note AN550 (Using the HA-2541), and Application Note AN556 (Thermal Safe Operating Areas for High Current Operational Amplifiers). Also see `Applications' in this data sheet. For a lower power version of this product, please see the HA-2841 data sheet.
Features
* Unity Gain Bandwidth. . . . . . . . . . . . . . . . . . . . . . . 40MHz * High Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . 250V/s * Low Offset Voltage. . . . . . . . . . . . . . . . . . . . . . . . . 0.8mV * Fast Settling Time (0.1%). . . . . . . . . . . . . . . . . . . . . 90ns * Power Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . 4MHz * Output Voltage Swing (Min) . . . . . . . . . . . . . . . . . . . 10V * Unity Gain Stability * Monolithic Bipolar Dielectric Isolation Construction
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 HA1-2541-5 TEMP. RANGE (oC) 0 to 75 PACKAGE 14 Ld CERDIP PKG. NO. F14.3
Pinout
HA1-2541 (CERDIP) TOP VIEW
NC 1 NC 2 BAL 3 -IN 4 +IN 5 V- 6 NC 7 14 NC 13 NC 12 BAL
-
11 V+ 10 OUT 9 NC 8 NC
+
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 1999, 2004. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
HA-2541
Absolute Maximum Ratings
Voltage Between V+ and V- Terminals . . . . . . . . . . . . . . . . . . . 35V Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Peak Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . 28mARMS
Thermal Information
Thermal Resistance (Typical, Note 2) JA (oC/W) JC (oC/W) CERDIP Package. . . . . . . . . . . . . . . . . 75 20 Maximum Junction Temperature (Note 1) . . . . . . . . . . . . . . . .175oC Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
Operating Conditions
Temperature Range HA-2541-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 75oC
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 175oC. 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 75oC. 2. JA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
VSUPPLY = 15V, RL = 1k, CL 10pF, Unless Otherwise Specified TEST CONDITIONS TEMP (oC) 25 Full Full 25 Full Full 25 Full 25 25 Full f = 1kHz, Rg = 0 f = 1kHz, Rg = 0 VO = 10V VCM = 10V VO = 90mV RL = 1k RL = 1k VP = 10V Note 4 Note 4 Note 6 25 25 25 Full Full 25 25 Full 25 25 25 25 25 25 HA-2541-5 0oC TO 75oC MIN 10 10 5 70 1 10 10 3 TYP 1 9 11 85 1 100 1 11 10 4 16 90 40 11 15 2 4 0.1 0.2 <0.01 MAX 2 6 35 50 7 9 UNITS mV mV V/oC A A nA/oC A A k pF V nV/Hz pA/Hz kV/V kV/V dB V/V MHz V mA MHz % Degrees %
PARAMETER INPUT CHARACTERISTICS Offset Voltage Average Offset Voltage Drift Bias Current Average Bias Current Drift Offset Current Input Resistance Input Capacitance Common Mode Range Input Noise Voltage Input Noise Current TRANSFER CHARACTERISTICS Large Signal Voltage Gain Common Mode Rejection Ratio Minimum Stable Gain Unity Gain Bandwidth OUTPUT CHARACTERISTICS Output Voltage Swing Output Current Output Resistance Full Power Bandwidth (Note 3) Differential Gain Differential Phase Harmonic Distortion
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FN2898.4 November 19, 2004
HA-2541
Electrical Specifications
VSUPPLY = 15V, RL = 1k, CL 10pF, Unless Otherwise Specified (Continued) TEST CONDITIONS TEMP (oC) 25 25 25 10V Step To 0.1% 10V Step To 0.01% POWER REQUIREMENTS Supply Current Power Supply Rejection Ratio NOTES: Slew Rate 3. Full Power Bandwidth guaranteed based on slew rate measurement using: FPBW = ---------------------------- . 2V PEAK 4. Differential Gain and Phase are measured with a 1V differential voltage at 5MHz. 5. Refer to Test Circuits section of this data sheet. 6. f = 10kHz; AV = 5; VO = 14VP-P. VS = 5V to 15V 25 Full Full 70 29 78 40 mA mA dB 25 25 HA-2541-5 0oC TO 75oC MIN 200 TYP 4 40 250 90 175 MAX UNITS ns % V/s ns ns
PARAMETER TRANSIENT RESPONSE (Note 5) Rise Time Overshoot Slew Rate Settling Time
Test Circuits and Waveforms
SETTLING POINT VIN +
-
VOUT 1k
NOTES: 7. VS = 15V. 8. AV = +1. 9. CL 10pF.
VIN
5k
5k 2k
2k
+
-
VOUT
NOTES: 10. AV = -1. 11. Feedback and summing resistor ratios should be 0.1% matched. 12. HP5082-2810 clipping diodes recommended. 13. Tektronix P6201 FET probe used at settling point. FIGURE 1. TRANSIENT RESPONSE TEST CIRCUIT FIGURE 2. SETTLING TIME TEST CIRCUIT
VIN 0V
VIN 0V
VOUT
VOUT 0V 0V
Vertical Scale: 5V/Div. Horizontal Scale: 50ns/Div. LARGE SIGNAL RESPONSE
Vertical Scale: VIN = 100mV/Div., VOUT = 50mV/Div. Horizontal Scale: 20ns/Div. SMALL SIGNAL RESPONSE
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FN2898.4 November 19, 2004
HA-2541 Test Circuits and Waveforms
(Continued)
NOTES:
VIN VOUT
14. VS = 15V, RL = 1k. 15. TA = 25oC. 16. Propagation delay variance is negligible over full temperature range.
Vertical Scale: 100mV/Div. Horizontal Scale: 5ns/Div.
PROPAGATION DELAY
Schematic Diagram
BALANCE R7 QP15 R11 QP31 QP13 R23 QN49 QP5 QP32 QP7 C1 QP11 QN45 QN44 Z41 QP54 R24 QN51 QN17 QN52 +IN QN1 R6 QN2 -IN QN23 QP30 QN20 VOUT QN34 QN8 QN9 C2 QN3 QN20 QN21 R29 R1 R2 R3 R4 R31 R32 QN5 QN37 R30 R16 R17 R5 QN22 QN26 R13 QN43 R18 R20 QN4 QN10 QN29 QN47 QN42 QN28 R14 VR21 QN46 QN27 R8 R9 R10 QP14 R12 QP16 QP33 R15 R27 5K QP55 BALANCE V+ R28 5K
QP25
R19 QN18
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FN2898.4 November 19, 2004
HA-2541 Typical Applications
Application 1
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-2541, with its 10mA 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 3. The HA-2541 acts as the pre-driver to the output power transistor. Together, they form a unity gain buffer with the ability to drive three 50 coaxial cables in parallel, each with a capacitance of 2000pF. The total combined load is 16.6 and 6000pF capacitance.
50 R1 D3 + HA-2541 532pF R2 1k HP2835 HP2835 D2 3.57MHz TRAP 1k 1k 1k LOAD 16.6; 6000pF OR 12.5; 6000pF 75 D1 HA-2541 1k 2N5886 1k
(Also see Application Note AN550)
Application 2
VIDEO One of the primary uses of the HA-2541 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-2541 is well suited for use in this class of amplifier. This, however, is a more involved group of applications than 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 4 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.
-
R3 100
FIGURE 3. DRIVING POWER TRANSISTORS TO GAIN ADDITIONAL CURRENT BOOSTING
FIGURE 4. VIDEO DC RESTORER
Suggested Offset Voltage Adjustment
NC 1 RT NC 2 BAL -IN 3 4
14 NC 13 NC 12 11 BAL V+
NOTE: Tested Offset Adjustment Range is |VOS + 1mV| minimum referred to output. Typical range is 15mV for RT = 5k.
+IN 5 V- 6 NC 7
-
10 OUT 9 NC 8 NC
+
5
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HA-2541 Typical Performance Curves
TA = 25oC, VS = 15V 100K OFFSET VOLTAGE (mV) 100M INPUT RESISTANCE () 3.0 2.5 2.0 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 10 100K 1M 10M FREQUENCY (Hz) -3.0 -60 -40 -20 0 20 40 60 80 100 120
10K V+ 1000 +
-
V100
900 100
TEMPERATURE (oC)
FIGURE 5. INPUT RESISTANCE vs FREQUENCY
FIGURE 6. OFFSET VOLTAGE vs TEMPERATURE (6 REPRESENTATIVE UNITS)
1000 INPUT NOISE CURRENT (pA/Hz) 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 -60
1000 INPUT NOISE VOLTAGE (nV/Hz) TA = 25oC
100
100
ENI 10 10
INI 1 1 10 100 1K FREQUENCY (Hz) 10K 1 100K
BIAS CURRENT (A)
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (oC)
FIGURE 7. NOISE DENSITY vs FREQUENCY
FIGURE 8. BIAS CURRENT vs TEMPERATURE (6 REPRESENTATIVE UNITS)
60
12 10 8 6 4 2 VOUT (V) 0 -2 -4 -6 -8 -10 -12 -14 3 5 -55oC +VOUT -55oC +VOUT 25oC
125oC +VOUT
50 40 30 IOUT (mA) 20 10 0 -10 -55oC +IOUT
+VOUT
+IOUT
25oC
125oC +IOUT
-55oC -IOUT
25oC -IOUT
125oC -IOUT
25oC +VOUT
-20 125oC +VOUT 13 15 -30 -40 3 5 7 9 11 SUPPLY VOLTAGE (V) 13 15
7 9 11 SUPPLY VOLTAGE (V)
FIGURE 9. OUTPUT VOLTAGE SWING vs SUPPLY VOLTAGE
FIGURE 10. OUTPUT CURRENT vs SUPPLY VOLTAGE
FN2898.4 November 19, 2004
6
HA-2541 Typical Performance Curves
30 28 26 SUPPLY CURRENT (mA) 24 22 20 18 16 14 12 10 8 6 4 3 5 11 7 9 SUPPLY VOLTAGE (V) 13 15 125oC 25oC -55oC NORMALIZED SLEW RATE
(Continued)
1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 5 7 9 11 SUPPLY VOLTAGE (V) 13 15 -55oC 25oC VIN + 125oC V+
VRL = 2k CL 10pF
VOUT RL CL
FIGURE 11. SUPPLY CURRENT vs SUPPLY VOLTAGE
FIGURE 12. SLEW RATE vs SUPPLY VOLTAGE (NORMALIZED WITH VS = 15V AT 25oC)
122 120 118 116 114 112 110 108 106 104 102 100 98 96 94 92 90
87 86 85 84 PSRR (dB) 83 82 81 80 79 78 77 76 3 5 7 9 11 13 15 SUPPLY VOLTAGE (V) -55oC +PSRR 125oC -PSRR 25oC -PSRR -55oC -PSRR 25oC +PSRR 125oC CMRR (dB) +PSRR
125oC
25oC
-55oC
3
5
7
9
11
13
15
SUPPLY VOLTAGE (V)
FIGURE 13. PSRR vs SUPPLY VOLTAGE (AVERAGE OF 3 LOTS)
FIGURE 14. CMRR vs SUPPLY VOLTAGE (AVERAGE OF 3 LOTS)
VS = 15V, RL = 2k, TA = 25oC 120 100 80 (dB) 60 40 20 0 -PSRR
20 19 18 17 16 AVOL (kV/V) 15 14 13 12 11 10 9 8 8 10 12 SUPPLY VOLTAGE (V) 14 AVOL AT TA = -55oC
CMRR +PSRR
AVOL AT TA 25oC
100
1K
10K
100K
1M
10M
FREQUENCY (Hz)
FIGURE 15. REJECTION RATIOS vs FREQUENCY
FIGURE 16. OPEN LOOP GAIN vs SUPPLY VOLTAGE (AVERAGE OF 3 LOTS)
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FN2898.4 November 19, 2004
HA-2541 Typical Performance Curves
100 80 GAIN (dB) 60 GAIN (dB) 40 20 0 PHASE (DEGREES) 180 VS = 15V RL = 1k CL 10pF TA = 25oC 10 OPEN LOOP 100 1K 135 90 PHASE 10K 100K 1M FREQUENCY (Hz) AV = -10 10M 100M AV = -1 45 0 GAIN 20 15 10 5 0 -5 -10 VIN RS 50 + PHASE -45 VOUT 900 -90 -135 -180 10M RS = 50k 100M PHASE (DEGREES) 0
(Continued)
VS = 15V, RL = 1k GAIN
-
100 AV +10 PHASE VS = 15V oC T = 25 1K RS = 0 10K 100K 1M FREQUENCY (Hz) RS = 5k
AV = -100
FIGURE 17. GAIN AND PHASE FREQUENCY RESPONSE
FIGURE 18. SMALL SIGNAL BANDWIDTH vs SOURCE RESISTANCE
VS = 8V, AV = +1 RL = 2k, CL 10pF 9 6 GAIN (dB) 3 0 -3 -6 -9 PHASE TA = 125oC TA = 25oC TA = -55oC 100M GAIN TA = 125oC TA = 25oC TA = -55oC 0 PHASE (DEGREES) -45 -90 -135 -180 -225 100K 1M 10M FREQUENCY (Hz)
FIGURE 19. CLOSED LOOP FREQUENCY RESPONSE
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FN2898.4 November 19, 2004
HA-2541 Die Characteristics
DIE DIMENSIONS: 80 mils x 90 mils x 19 mils 2020m x 2280m x 483m METALLIZATION: Type: Al, 1% Cu Thickness: 16kA 2kA PASSIVATION: Type: Nitride(Si3N4) over Silox (SiO2, 5% Phos.) Silox Thickness: 12kA 2kA Nitride Thickness: 3.5kA 1.5kA SUBSTRATE POTENTIAL (Powered Up): VTRANSISTOR COUNT: 41 PROCESS: Bipolar Dielectric Isolation
Metallization Mask Layout
HA-2541
-IN
+IN
BAL
V-
NC
BAL
OUTPUT
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.
For information regarding Intersil Corporation and its products, see www.intersil.com 9
FN2898.4 November 19, 2004

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