HA-2540 Data Sheet September 1998 File Number 2897.3 400MHz, Fast Settling Operational Amplifier Features 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 1kΩ load. Other desirable characteristics include low input voltage noise, low offset voltage, and fast settling time. • Fast Settling Time. . . . . . . . . . . . . . . . . . . . . . . . . . . 140ns • Very High Slew Rate . . . . . . . . . . . . . . . . . . . . . . 400V/µs A 400V/µs slew rate ensures high performance in video and pulse amplification circuits, while the 400MHz gainbandwidth 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. For a lower power version of this product, please see the HA-2850 datasheet. Pinout • Wide Gain Bandwidth (AV ≥ 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 Ordering Information PART NUMBER TEMP. RANGE (oC) PACKAGE 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 PKG. NO. HA-2540 (CERDIP, PDIP) TOP VIEW NC 1 14 NC NC 2 13 NC NC 3 12 NC -IN 4 11 V+ - +IN 5 + 10 OUTPUT V- 6 9 NC NC 7 8 NC 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999 HA-2540 Absolute Maximum Ratings Thermal Information Voltage Between V+ and V- Terminals. . . . . . . . . . . . . . . . . . . . 35V Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Output Current . . . . . . . . . . . . . . 33mARMS Continuous, 50mAPEAK Thermal Resistance (Typical, Note 2) θJA (oC/W) θJC (oC/W) CERDIP Package. . . . . . . . . . . . . . . . . 75 20 PDIP Package . . . . . . . . . . . . . . . . . . . 107 N/A Maximum Internal Power Dissipation (Note 1) Maximum Junction Temperature (Ceramic Package) . . . . . . 175oC Maximum Junction Temperature (Plastic Package) . . . . . . . . .150oC Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC Operating Conditions Temperature Range HA-2540-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC HA-2540/2540C-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 for the ceramic package, and below 150oC 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 75oC. 2. θJA is measured with the component mounted on an evaluation PC board in free air. VSUPPLY = ±15V, RL = 1kΩ, CL < 10pF, Unless Otherwise Specified Electrical Specifications TEMP (oC) PARAMETER HA-2540-2 MIN TYP HA-2540-5 MAX MIN TYP HA-2540C-5 MAX MIN TYP MAX UNITS 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 - µV/oC Bias Current 25 - 5 20 - 5 20 - 5 20 µA Offset Current Full - - 25 - - 25 - - 25 µA 25 - 1 6 - 1 6 - 1 6 µA Full - - 8 - - 8 - - 8 µA Input Resistance 25 - 10 - - 10 - - 10 - kΩ Input Capacitance 25 - 1 - - 1 - - 1 - pF Common Mode Range Full ±10 - - ±10 - - ±10 - - V Input Noise Current (f = 1kHz, RSOURCE = 0Ω) 25 - 6 - - 6 - - 6 - pA/√Hz Input Noise Voltage (f = 1kHz, RSOURCE = 0Ω) 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 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 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 - Ω Full Power Bandwidth (Notes 3, 7) 25 5.5 6 - 5.5 6 - 5.5 6 - MHz 25 - 14 - - 14 - - 14 - ns Common-Mode Rejection Ratio (Note 4) OUTPUT CHARACTERISTICS TRANSIENT RESPONSE (Note 8) Rise Time Overshoot 25 - 5 - - 5 - - 5 - % Slew Rate 25 320 400 - 320 400 - 320 400 - V/µs Settling Time: 10V Step to 0.1% 25 - 140 - - 140 - - 140 - ns 2 HA-2540 VSUPPLY = ±15V, RL = 1kΩ, CL < 10pF, Unless Otherwise Specified (Continued) Electrical Specifications HA-2540-2 HA-2540-5 HA-2540C-5 TEMP (oC) MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS Supply Current Full - 20 25 - 20 25 - 20 25 mA Power Supply Rejection Ratio (Note 9) Full 60 70 - 60 70 - 60 70 - dB PARAMETER POWER REQUIREMENTS NOTES: 3. RL = 1kΩ, VO = ±10V. 4. VCM = ±10V. 5. VO = 90mV. 6. AV = 10. Slew Rate 7. Full power bandwidth guaranteed based on slew rate measurement using: FPBW = --------------------------- . 2πV PEAK 8. Refer to Test Circuits section of the data sheet. 9. VSUPPLY = +5V, -15V and +15V, -5V. 10. Guaranteed range for output voltage is ±10V. Functional operation outside of this range is not guaranteed. Test Circuits and Waveforms VIN + VOUT - 900 NOTES: 11. AV = +10. 100 12. CL ≤ 10pF. FIGURE 1. LARGE AND SMALL SIGNAL RESPONSE TEST CIRCUIT 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. LARGE SIGNAL RESPONSE SMALL SIGNAL RESPONSE 0.001µF V+ NOTES: 13. AV = -10. 1µF INPUT 200Ω OUTPUT - + 15. It is recommended that resistors be carbon composition and the feedback and summing network ratios be matched to 0.1%. 0.001µF PROBE MONITOR 500Ω 1µF V- 2kΩ SETTLE POINT 14. Load Capacitance should be less than 10pF. Turn on time delay typically 4ns. 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. 5kΩ FIGURE 2. SETTLING TIME TEST CIRCUIT 3 HA-2540 Schematic Diagram R2 R1 R23 QP18 V+ R4 R3 QP28 QP22 QP6 QP17 QP19 R24 R5 R13 V- QP5 QP25 R22 C2 C1 V- RC2 QN2 QN1 QN7 QN9 R7 R6 QP8 + INPUT R18 OUTPUT QP23 R9 R8 QN21 R19 QN10 QP4 QP3 QP11 - INPUT V+ R21 Z1 QN25 QN12 V+ R25 R10 QN20 DZ1 QN14 DZ2 R11 R16 QN15 QN13 QN16 R12 QN29 R14 R15 R17 V- Typical Applications R1 4K 2K C1 (NOTE 18) 200 - + 10K 1K R2 4K HA-2540 CF (NOTE 17) V+ OFFSET ADJUST 1K V- V+ + SIGNAL OUT HA-2540 0.1µF R5 (NOTE 19) 2K R3 4K R4 4K NOTES: 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. FIGURE 3. WIDEBAND SIGNAL SPLITTER 17. Used for experimental purposes. CF ≅ 3pF. 18. C1 is optional (0.001µF → 0.01µF ceramic). 19. R5 is optional and can be utilized to reduce input signal amplitude and/or balance input conditions. R5 = 500Ω to 1kΩ. FIGURE 4. BOOTSTRAPPING FOR MORE OUTPUT CURRENT AND VOLTAGE SWING Refer to Application Note AN541 For Further Application Information. 4 V- HA-2540 Typical Performance Curves 28 100 OUTPUT VOLTAGE SWING (VP-P) CLOSED LOOP GAIN (dB) 90 80 70 60 50 40 30 20 10 0 -10 100 1K 10K 100K 1M 10M VS = ±15V 24 20 VS = ±10V 16 12 8 VS = ±5V 4 0 1K 100M 10K FREQUENCY (Hz) 28 24 20 16 12 8 4 0 200 400 600 800 1M 10M 100M FIGURE 6. OUTPUT VOLTAGE SWING vs FREQUENCY NORMALIZED PARAMETERS REFERRED TO VALUES AT 25oC OUTPUT VOLTAGE SWING (VP-P) FIGURE 5. CLOSED LOOP FREQUENCY RESPONSE 0 100K FREQUENCY (Hz) 1K 1.2K 1.4 1.3 1.2 1.1 BANDWIDTH 1.0 SLEW RATE 0.9 0.8 0.7 0.6 -80 -40 0 40 80 120 160 TEMPERATURE (oC) RESISTANCE (Ω) FIGURE 7. OUTPUT VOLTAGE SWING vs LOAD RESISTANCE FIGURE 8. NORMALIZED AC PARAMETERS vs TEMPERATURE 28 10mV 1mV 6 4 2 0 -2 -4 1mV -6 -8 VS = ±15V 24 8 SUPPLY CURRENT (mA) OUTPUT VOLTAGE STEP (V) 10 10mV 20 16 VS = ±5V 12 8 4 -10 0 40 80 120 160 200 SETTLING TIME (ns) FIGURE 9. SETTLING TIME FOR VARIOUS OUTPUT STEP VOLTAGES 5 240 0 -80 -40 0 40 80 120 160 TEMPERATURE (oC) FIGURE 10. POWER SUPPLY CURRENT vs TEMPERATURE HA-2540 Typical Performance Curves (Continued) 14 7 12 6 8 4 6 3 BIAS CURRENT 4 2 2 1 0 -80 -40 0 40 80 120 25 50 20 40 15 30 CURRENT NOISE 20 10 VOLTAGE NOISE 5 0 160 NOISE CURRENT (pA/√Hz) 5 NOISE VOLTAGE (nV/√Hz) OFFSET VOLTAGE 10 |VIO| OFFSET VOLTAGE (mV) INPUT BIAS CURRENT (µA) RSOURCE = 0Ω, VS = ±15 0 10 10 0 100K TEMPERATURE (oC) 1K FREQUENCY (Hz) FIGURE 11. INPUT OFFSET VOLTAGE AND BIAS CURRENT vs TEMPERATURE FIGURE 12. INPUT NOISE VOLTAGE AND NOISE CURRENT vs FREQUENCY +40µV 100 10K VS = ±15, RL = 1K +20µV 100 CMRR (dB) +30µV 120 +10µV 0µV 80 60 -10µV 40 -20µV 20 -30µV 0 1K -40µV Vertical Scale: 10mV/Div. Horizontal Scale: 50ms/Div. 10K 100K 1M 10M FREQUENCY (Hz) FIGURE 14. COMMON MODE REJECTION RATIO vs FREQUENCY FIGURE 13. BROADBAND NOISE (0.1Hz TO 1MHz) 100 100 0 80 60 POSITIVE SUPPLY 40 NEGATIVE SUPPLY 45 GAIN 60 PHASE 90 40 135 20 20 180 0 0 1K 10K 100K FREQUENCY (Hz) 1M 10M FIGURE 15. POWER SUPPLY REJECTION RATIO vs FREQUENCY -10 100 10K 100K 1M 10M FREQUENCY (Hz) 100M FIGURE 16. OPEN LOOP GAIN/PHASE vs FREQUENCY Die Characteristics 6 225 1K PHASE (DEGREES) OPEN LOOP GAIN (dB) PSRR (dB) 80 HA-2540 DIE DIMENSIONS: SUBSTRATE POTENTIAL (Powered Up): 62 mils x 76 mils x 19 mils 1575 µmx 1930µm x 483µm VTRANSISTOR COUNT: METALLIZATION: 30 Type: Al, 1% Cu Thickness: 16kÅ ±2kÅ PROCESS: Bipolar Dielectric Isolation PASSIVATION: Type: Nitride (Si3N4) over Silox (SiO2, 5% Phos.) Silox Thickness: 12kÅ ±2kÅ Nitride Thickness: 3.5kÅ ±1.5kÅ Metallization Mask Layout HA-2540 V+ -IN OUTPUT V- +IN 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 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. 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