HA3-2841-5

T CT DU C P R O PR O D U E TE U TE OL OBS UBSTIT -2544 S A IBLE -2842, H Data Sheet A O SS H P ® HA-2841 May 2003 FN2843.4 50MHz, Fast Settling, Unity Gain Stable, Video Operational Amplifier 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. 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 Features • Low Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . 10mA • Low AC Variability Over Process and Temperature • Unity Gain Bandwidth. . . . . . . . . . . . . . . . . . . . . . . 50MHz • Gain Flatness to 10MHz. . . . . . . . . . . . . . . . . . . . . 0.05dB • High Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . 240V/µs • Low Offset Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . 1mV • 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) HA3-2841-5 HA9P2841-5 (H28415) TEMP. RANGE (oC) 0 to 75 0 to 75 PACKAGE 8 Ld PDIP 8 Ld SOIC PKG. NO. E8.3 M8.15 BAL -IN +IN V- 1 2 3 4 8 BAL V+ OUT NC + 7 6 5 1 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 Voltage Between V+ and V- Terminals . . . . . . . . . . . . . . . . . . . 35V Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Output Current (Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA 10mA (50% Duty Cycle) Thermal Information Thermal Resistance (Typical, Note 2) θJA (oC/W) Operating Conditions Temperature Range HA-2841-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 75oC Recommended Supply Voltage Range . . . . . . . . . . . ±6.5V to ±15V 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. Electrical Specifications PARAMETER INPUT CHARACTERISTICS Offset Voltage (Note 10) VSUPPLY = ±15V, RL = 1kΩ , CL ≤ 10pF, Unless Otherwise Specified TEMP. (oC) HA-2841-5 MIN TYP MAX UNITS TEST CONDITIONS 25 Full ±10 - 1 14 5 8 45 0.5 170 1 16 16 2 3 6 10 15 1.0 1.5 - mV mV µV/oC µA µA nA/oC µA µA kΩ pF V µVRMS nV ⁄ Hz pA ⁄ Hz Average Offset Voltage Drift Bias Current (Note 10) Full 25 Full Average Bias Current Drift Offset Current Full 25 Full Input Resistance Input Capacitance Common Mode Range Input Noise Voltage Input Noise Voltage (Note 10) Input Noise Current (Note 10) TRANSFER CHARACTERISTICS Large Signal Voltage Gain VO = ±10V VCM = ±10V 10Hz to 1MHz f = 1kHz, RSOURCE = 0Ω f = 1kHz, RSOURCE = 10kΩ 25 25 Full 25 25 25 25 Full 25 10 80 1 ±10 15 3.2 - 50 30 95 50 ±0.015 ±0.05 ±10.5 30 8.5 3.8 0.03 - kV/V kV/V dB V/V MHz dB dB Common-Mode Rejection Ratio (Note 10) Minimum Stable Gain Gain Bandwidth Product (Notes 5, 10) Gain Flatness to 5MHz (Note 10) Gain Flatness to 10MHz (Note 10) OUTPUT CHARACTERISTICS Output Voltage Swing (Note 10) Output Current (Note 10) Output Resistance Full Power Bandwidth (Note 6) Differential Gain (Note 10) Full 25 25 RL ≥ 75Ω RL ≥ 500Ω 25 25 Full Note 3 VO = ±10V Note 4 Full 25 25 25 - V mA Ω MHz % 2 HA-2841 Electrical Specifications PARAMETER Differential Phase (Note 10) Harmonic Distortion (Note 10) TRANSIENT RESPONSE (Note 7) Rise Time Overshoot Slew Rate (Notes 9, 10) Settling Time POWER REQUIREMENTS Supply Current (Note 10) 25 Full Power Supply Rejection Ratio (Note 10) 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 ) 2 π V 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. Note 8 Full 70 10 10 80 11 mA mA dB AV = +1 10V Step to 0.1% 25 25 25 25 200 3 33 240 90 ns % V/µs ns Note 4 VO = 2VP-P, f = 1MHz, AV = +1 VSUPPLY = ±15V, RL = 1kΩ , CL ≤ 10pF, Unless Otherwise Specified (Continued) TEMP. (oC) 25 25 HA-2841-5 MIN TYP 0.03 >83 MAX UNITS Degrees dBc TEST CONDITIONS Test Circuits and Waveforms IN + - OUT 1kΩ NOTES: 11. VS = ±15V. 12. AV = +1. 13. CL < 10pF. TEST CIRCUIT INPUT INPUT OUTPUT OUTPUT Input = 5V/Div. Output = 5V/Div. 50ns/Div. Input = 100mV/Div. Output = 100mV/Div. 50ns/Div. LARGE SIGNAL RESPONSE SMALL SIGNAL RESPONSE 3 HA-2841 Test Circuits and Waveforms 5kΩ 5kΩ 2kΩ 2kΩ VIN V+ (Continued) SETTLING POINT + V- VOUT V+ + 5kΩ BAL OUT NOTES: 14. 15. 16. 17. 18. 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 V- SUGGESTED OFFSET VOLTAGE ADJUSTMENT Typical Applications (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. 50Ω + R1 D3 HA-2841 532pF R2 1K R3 100Ω HP2835 D2 LOAD 16.6Ω; 6000pF OR 12.5Ω; 6000pF HP2835 2N5886 D1 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. HA-5320 1kΩ 1kΩ 3.57MHz TRAP HA-2841 1kΩ 1kΩ 1kΩ 75Ω - FIGURE 2. VIDEO DC RESTORER Prototyping Guidelines 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. 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. FIGURE 1. DRIVING POWER TRANSISTORS TO GAIN ADDITIONAL CURRENT BOOSTING 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 HA-2841 Typical Performance Curves 100 GAIN (dB) AVCL = 1000 AVCL = 100 AVCL = 10 GAIN BANDWIDTH PRODUCT (MHz) 80 60 40 20 0 AVCL = 1 0 90 OPEN LOOP 100 1K AVCL = 1000 10K AVCL = 100 100K AVCL AVCL = 10 =1 1M 10M 180 OPEN LOOP TA = 25oC, VSUPPLY = ±15V, RL = 1kΩ, CL < 10pF, Unless Otherwise Specified 60 55 50 45 40 35 30 100M 500M 6 7 8 9 10 11 12 13 14 15 PHASE (DEGREE) FREQUENCY (Hz) SUPPLY VOLTAGE (±V) FIGURE 3. FREQUENCY RESPONSE FOR VARIOUS GAINS FIGURE 4. GAIN BANDWIDTH PRODUCT vs SUPPLY VOLTAGE 65 GAIN BANDWIDTH PRODUCT (MHz) 60 55 50 45 40 35 30 -60 CMRR (dB) -40 -20 0 20 40 60 80 100 120 140 100 90 80 70 60 50 40 30 100 1K 10K 100K 1M 10M TEMPERATURE (oC) FREQUENCY (Hz) FIGURE 5. GAIN BANDWIDTH PRODUCT vs TEMPERATURE FIGURE 6. CMRR vs FREQUENCY 90 80 ±PSRR 70 PSRR (dB) 60 50 40 30 20 100 120 40 NOISE VOLTAGE (nV/√Hz) 90 30 60 NOISE VOLTAGE 30 20 NOISE CURRENT 10 0 1K 10K 100K 1M 10M 10 100 1K FREQUENCY (Hz) 10K FREQUENCY (Hz) 0 100K FIGURE 7. PSRR vs FREQUENCY FIGURE 8. INPUT NOISE vs FREQUENCY 5 NOISE CURRENT (pA/√Hz) HA-2841 Typical Performance Curves 290 POSITIVE SLEW RATE SLEW RATE (V/µs) SLEW RATE (V/µs) 280 TA = 25oC, VSUPPLY = ±15V, RL = 1kΩ, CL < 10pF, Unless Otherwise Specified (Continued) 290 POSITIVE SLEW RATE 280 270 NEGATIVE SLEW RATE 260 270 NEGATIVE SLEW RATE 260 250 250 -60 -40 -20 0 20 40 60 80 100 120 140 240 7 8 9 10 11 12 13 14 15 TEMPERATURE (oC) SUPPLY VOLTAGE (±V) FIGURE 9. SLEW RATE vs TEMPERATURE 9.0 1.5 12 INPUT BIAS CURRENT (µA) 8.0 OFFSET VOLTAGE 1.0 INPUT OFFSET VOLTAGE (mV) FIGURE 10. SLEW RATE vs SUPPLY VOLTAGE 7.0 0.5 SUPPLY CURRENT (mA) 10 8 125oC 6 -55oC 4 25οC 6.0 0.0 5.0 BIAS CURRENT -0.5 4.0 -1.0 3.0 -60 -1.5 -40 -20 0 20 40 60 80 100 120 140 2 5 6 7 8 9 10 11 12 13 14 15 TEMPERATURE (oC) SUPPLY VOLTAGE (±V) FIGURE 11. INPUT OFFSET VOLTAGE AND INPUT BIAS CURRENT vs TEMPERATURE FIGURE 12. SUPPLY CURRENT vs SUPPLY VOLTAGE 12.5 POSITIVE OUTPUT SWING (V) ±15V, 150Ω ±15V, 1kΩ NEGATIVE OUTPUT SWING (V) 0 ±8V, 75Ω ±15V, 75Ω ±8V, 150Ω 10 ±15V, 75Ω 7.5 ±8V, 150Ω 5 ±8V, 1kΩ -2.5 -5 ±8V, 1kΩ -7.5 ±15V, 150Ω -10 ±15V, 1kΩ -40 -20 0 20 40 60 80 100 120 140 2.5 ±8V, 75Ω 0 -60 -40 -20 0 20 40 60 80 100 120 140 -12.5 -60 TEMPERATURE (oC) TEMPERATURE (oC) FIGURE 13. POSITIVE OUTPUT SWING vs TEMPERATURE FIGURE 14. NEGATIVE OUTPUT SWING vs TEMPERATURE 6 HA-2841 Typical Performance Curves TA = 25oC, VSUPPLY = ±15V, RL = 1kΩ, CL < 10pF, Unless Otherwise Specified (Continued) -20 OUTPUT VOLTAGE SWING (VP-P) 25 20 15 10 5 0 VSUPPLY = ±8V THD (dBc) VSUPPLY = ±15V -30 -40 -50 -60 -70 -80 VO = 0.5VP-P 1K 10K 100K 1M 10M 100M -90 100K 1M FREQUENCY (Hz) 10M VO = 1VP-P VO = 2VP-P VO = 10VP-P FREQUENCY (Hz) FIGURE 15. MAXIMUM UNDISTORTED OUTPUT SWING vs FREQUENCY FIGURE 16. TOTAL HARMONIC DISTORTION vs FREQUENCY -20 THIRD INTERMOD PRODUCT (dBc) VO = 5VP-P -30 DIFFERENTIAL GAIN (%) -40 -50 -60 -70 -80 VO = 0.25VP-P -90 500K 1M FREQUENCY (Hz) 10M VO = 2VP-P VO = 1VP-P VO = 0.5VP-P 0.16 0.14 0.12 0.10 0.08 0.06 0.04 0.02 100 VSUPPLY = ±8V VSUPPLY = ±10V VSUPPLY = ±15V 200 300 400 500 600 700 800 900 1000 LOAD RESISTANCE (Ω) FIGURE 17. INTERMODULATION DISTORTION vs FREQUENCY (TWO TONE) FIGURE 18. DIFFERENTIAL GAIN vs LOAD RESISTANCE 0.08 DIFFERENTIAL PHASE (DEGREES) 0.22 0.20 GAIN FLATNESS (±dB) 0.18 0.16 0.14 0.12 0.10 0.08 VSUPPLY = ±10V 0.06 V SUPPLY = ±15V 0.04 0.02 0 100 200 300 400 500 600 700 800 900 1000 LOAD RESISTANCE (Ω) VSUPPLY = ±8V 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.00 0 AVCL = 1 RL = 75Ω RL = 150Ω RL = 500Ω RL = 1000Ω 1M 2M 3M 4M 5M 6M 7M 8M 9M 10M FREQUENCY (Hz) FIGURE 19. DIFFERENTIAL PHASE vs LOAD RESISTANCE FIGURE 20. GAIN FLATNESS vs FREQUENCY 7 HA-2841 Die Characteristics DIE DIMENSIONS: 77 mils x 81 mils x 19 mils 1960µm x 2060µm x 483µm METALLIZATION: Type: Aluminum, 1% Copper Thickness: 16kÅ ±2kÅ PASSIVATION: Type: Nitride over Silox Silox Thickness: 12kÅ ±2kÅ Nitride thickness: 3.5kÅ ±1kÅ SUBSTRATE POTENTIAL (Powered Up): VTRANSISTOR COUNT: 43 PROCESS: High Frequency Bipolar Dielectric Isolation 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. For information regarding Intersil Corporation and its products, see www.intersil.com 8