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| Semiconductor January 1999 P T CT DUC PRO PRODU ETE UTE OL OBS UBSTIT 5 S 52 IBLE HA-2 OSS CA3100 38MHz, Operational Amplifier Features * High Open Loop Gain at Video Frequencies . . . . . . . . . . . . . . . . . . 42dB (Typ) at 1MHz Description The CA3100 is a large signal wideband, high speed operational amplifier which has a unity gain cross over frequency (fT) of approximately 38MHz and an open loop, 3dB corner frequency of approximately 110kHz. It can operate at a total supply voltage of from 14V to 36V (7V to 18V when using split supplies) and can provide at least 18VP-P and 30mAP-P at the output when operating from 15V supplies. The CA3100 can be compensated with a single external capacitor and has DC offset adjust terminals for those applications requiring offset null. (See Figure 1). The CA3100 circuit contains both bipolar and PMOS transistors on a single monolithic chip. [ /Title (CA31 00) /Subject (38MH z, Operational Amplifier) /Autho r () /Keywords (Harris Semiconductor, single, operational amplifier, op amp, general purpose, industrial military * Unity Gain Crossover Frequency (fT) . . . . . . . . . . . . . 38MHz (Typ) * Full Power Bandwidth V = 18VP-P . . . . . . . . . . . . . . . . . . . . . . . 1.2MHz (Typ) O * Slew Rate - 20dB Amplifier . . . . . . . . . . . . . . . . . . . . 70V/s (Typ) - Unity Gain Amplifier. . . . . . . . . . . . . . . . 25V/s (Typ) * Settling Time . . . . . . . . . . . . . . . . . . . . . . . . 0.6s (Typ) * Output Current . . . . . . . . . . . . . . . . . . . . . . 15mA (Min) * Single Capacitor Compensation * Offset Null Terminals Part Number Information PART NUMBER (BRAND) CA3100E TEMP. RANGE (oC) -40 to 85 -40 to 85 -55 to 125 PACKAGE 8 Ld PDIP 8 Ld SOIC 8 Pin Metal Can PKG. NO. E8.3 M8.15 T8.C Applications * Video Amplifiers * Fast Peak Detectors * Meter Driver Amplifiers * High Frequency Feedback Amplifiers * Video Pre-Drivers * Oscillators * Multivibrators * Voltage Controlled Oscillator * Fast Comparators CA3100M (3100) CA3100T Pinouts CA3100 (PDIP, SOIC) TOP VIEW PHASE COMPENSATION OFFSET NULL INV. INPUT NON-INV. INPUT VPHASE COMP AND OFFSET NULL INV. INPUT 2 3 4 V- CA3100 (METAL CAN) TOP VIEW PHASE COMP TAB 8 7 V+ 1 2 3 4 8 1 + 7 V+ 6 OUTPUT 5 OFFSET NULL + 5 6 OUTPUT NON-INV. INPUT OFFSET NULL CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright (c) Harris Corporation 1999 File Number 625.4 3-1 CA3100 Absolute Maximum Ratings Supply Voltage (Between V+ and V- Terminals) . . . . . . . . . . . . . 36V Differential Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Input Voltage to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . V+ to VOffset Terminal to V- Terminal Voltage . . . . . . . . . . . . . . . . . . 0.5V Output Current (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA Thermal Information Thermal Resistance (Typical, Note 1) JA (oC/W) JC (oC/W) PDIP Package . . . . . . . . . . . . . . . . . . . 100 N/A SOIC Package . . . . . . . . . . . . . . . . . . . 165 N/A Metal Can Package . . . . . . . . . . . . . . . 170 85 Maximum Junction Temperature (Metal Can) . . . . . . . . . . . . . 175oC Maximum Junction Temperature (Plastic Package) . . . . . . . 150oC Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC (SOIC - Lead Tips Only) Operating Conditions Temperature Range CA3100E, CA3100M. . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC CA3100T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC 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. JA is measured with the component mounted on an evaluation PC board in free air. 2. CA3100 does not contain circuitry to protect against short circuits in the output. TA = 25oC, VSUPPLY = 15V, Unless Otherwise Specified SYMBOL TEST CONDITIONS MIN TYP MAX UNITS Electrical Specifications PARAMETER DC Input Offset Voltage Input Bias Current Input Offset Current VIO IIB IIO VlCR CMRR VOM+ VOM- VO = 0 0.1V VO = 0 1V VO = 0 1V CMRR 76dB VCM = 12V Differential Input Voltage = 0 0.1V, RL = 2k 12 76 +9 1 0.7 0.05 +14 -13 90 +11 5 2 0.4 - mV A A V Common Mode Input Voltage Range Common Mode Rejection Ratio Maximum Output Voltage - dB V -9 Differential Input Voltage = 0 + 0.1V, RL = 250 +15 -11 +30 - V mA Maximum Output Current IOM+ IOM- -15 VO = 0 0.1V, RL 10k V+ = 1V, V- = 1V 60 -30 8.5 70 10.5 - mA mA dB Supply Current Power Supply Rejection Ratio DYNAMIC Unity-Gain Crossover Frequency Open Loop Voltage Gain I+ PSRR fT AOL CC = 0, VO = 0.3VP-P f = 1kHz, VO = 1V, (Note 3) f = 1MHz, CC = 0, VO = 10VP-P 56 36 50 0.8 - 38 61 42 70 25 1.2 0.4 30 110 - MHz dB dB V/s V/s MHz MHz k Slew Rate SR AV = 10, CC = 0, VI = 1V (Pulse) AV = 1, CC = 10pF, VI = 10V (Pulse) Full Power Bandwidth (Note 4) FPBW AV = 10, CC = 0, VO = 18VP-P AV = 1, CC = 10pF, VO = 18VP-P Open Loop Differential Input Impedance Open Loop Output lmpedance ZI ZO f = 1MHz f = 1MHz 3-2 CA3100 Electrical Specifications PARAMETER Wideband Noise Voltage (RTI) Settling Time (To Within 50mV of 9V Output Swing) NOTES: 3. Low frequency dynamic characteristic. Slew Rate 4. Full Power Bandwidth = -------------------------- . VO P - P TA = 25oC, VSUPPLY = 15V, Unless Otherwise Specified (Continued) SYMBOL eN (Total) tS TEST CONDITIONS BW = 1MHz, RS = 1k RL = 2k, CL = 20pF MIN TYP 8 0.6 MAX UNITS VRMS s Test Circuits V+ 7 0.1F VI 3 VI HP606A OR EQUIV 8 51 2 + CA3100 3 6 20pF 4 5 1 0.1F VWITH VI = 0 ADJ POTENTIOMETER (RX) TO GIVE VO = 0 0.1VDC +1V PULSE tR 10ns tWIDTH 1s 51 2k 220 2k VO 2 AOL = VO VI OL V+ 7 0.1F + CA3100 VO 6 SLOPE = SR - 4 0.1 F 20 pF 2k CC RX SET VI TO GIVE 10k DESIRED VO LEVEL AT TEST FREQUENCY NULL ADJUST AT FREQUENCY > 1MHz VI POTENTIOMETER AND VO MEASURED WITH HF8405A VECTOR VOLTMETER V- FIGURE 1. OPEN-LOOP VOLTAGE GAIN TEST CIRCUIT AND OFFSET ADJUST CIRCUIT 10pF V+ FIGURE 2. SLEW RATE IN 10X AMPLIFIER TEST CIRCUIT AV = 100 +15V INPUT REFERRED NOISE VOLTAGE eNO eNI = 100 3 7 0.1F + CA3100 POST AMPL. AND 2 POLE 1MHz FILTER 1 VI 3 51 2 +10V PULSE tR 10ns tWIDTH 1s 3 7 + CA3100 6 0.1F SLOPE = SR VO 6 5 2k RS 2 4 420 HP400EL VTVM 500pF 4 0.1F 47 0.1F eNO V- -15V FIGURE 3. FOLLOWER SLEW RATE TEST CIRCUIT FIGURE 4. WIDEBAND INPUT NOISE VOLTAGE TEST CIRCUIT 3-3 CA3100 Test Circuits (Continued) 1pF +15V 7 1V 9.1k 3 + CA3100 6 VOM 4 1k 1k RL 2k 51 1k 1 RL = 250 FOR IOM TEST VO IOM = 250 VI = 9V 7 2k 2 2k +15V 0.1F VO = 9V 6 4 8 0.1 F -15V 20pF CA3100 + 2 - 3 12pF -15V 2k 2k SETTLING POINT TO SCOPE FIGURE 5. OUTPUT VOLTAGE SWING (VOM), OUTPUT CURRENT SWING (IOM) TEST CIRCUIT FIGURE 6. SETTLING TIME TEST CIRCUIT Schematic Diagram 7 R4 750 R5 750 Q2 Q1 Q3 V+ R6 12k NONINVERT INPUT + 3 INVERT INPUT 2 Q4 Q5 Q6 Q8 Q9 D4 Q10 Q16 Q19 Q20 D5 Q17 Q13 D2 D3 C1 10pF R1 2.5k Q7 - Q12 Q11 Q14 R10 20 R11 20 Q15 OUTPUT 6 8 PHASE COMP R9 200 Q18 OFFSET NULL 5 1 OFFSET NULL AND PHASE COMP R7 10k Q23 Q22 Q21 R8 200 R12 50 V- 4 R14 1.1k R13 20 R15 1.1k R16 150 R17 600 R19 600 R18 150 3-4 CA3100 Typical Applications +15V 7 INPUT 0.33F 3 + CA3100 0.1F OUTPUT 6 0.33F 220 3k 4 0.1F -15V 220 2k 3pF -3dB BANDWIDTH 20MHz TOTAL INPUT NOISE VOLTAGE REFERRED TO INPUT 35VRMS 3pF DELIVERS FOLLOWING PEAK VOLTAGES TO 50 LINE: FREQ 1MHz 2MHz 4MHz 6MHz VO 8V 5V 2V 1V 220 GAIN = 20dB 0.1F -15V 2 +15V 3dB BANDWIDTH = 15MHz ACL = 20dB INPUT 3 7 + CA3100 0.1F 4.7 k 2N5320 OUTPUT TO TERMINATED 50 TRANSMISSION LINE 6 10 2 3k - 4 1N5393 10 2k 2N5322 FIGURE 7. 20dB VIDEO AMPLIFIER FIGURE 8. 20dB VIDEO LINE DRIVER ZERO ADJ 200 20k 10pF INPUT IMPEDANCE 50k 2N2102 TEST LEADS 2 VO (DC) = +VI PEAK -15V 51k 1 8 3 + CA3100 7 0.1F 1VRMS FULL SCALE 1N914 6 51k 0.1 F + 1mA FULL SCALE DC METER +15V +15V VI(AC) 3 3k 2 7 + CA3100 0.1F 6 1N914 4 4 250 POT. 330 1.2k 0.1F 1000pF FULL SCALE CALIBRATION ADJUST -15V FIGURE 9. FAST POSITIVE PEAK DETECTOR FIGURE 10. 1MHz METER-DRIVER AMPLIFIER Typical Performance Curves 80 OPEN LOOP VOLTAGE GAIN (dB) 70 60 50 40 30 CC = 24pF 20 10 12pF 0 0.001 0.01 0.1 1 FREQUENCY (MHz) 10 100 0pF CC = 24pF |AOL| 12pF 0pF 12pF -270 -225 0pF -180 -135 24pF -90 -45 0 OPEN LOOP PHASE SHIFT (DEGREES) OPEN LOOP VOLTAGE GAIN (dB) TA = 25oC VS = 15V RL = 2k CL = 20pF 70 60 50 40 30 20 10 0 0.001 VS = 15V RL = 2k CC = 0 TA = -55oC 25oC 125oC 0.01 0.1 1 FREQUENCY (MHz) 10 100 FIGURE 11. OPEN LOOP GAIN, OPEN LOOP PHASE SHIFT vs FREQUENCY FIGURE 12. OPEN LOOP GAIN vs FREQUENCY 3-5 CA3100 Typical Performance Curves 70 OPEN LOOP VOLTAGE GAIN (dB) 60 50 40 30 20 10 0 0.001 0 0.01 0.1 1 10 100 FREQUENCY (MHz) 0 6 (0) 12V 10V 7V (Continued) TA = 25oC RL = 2k CL = 20pF 25 20 15 10 5 10V 10 (6) 20 (19.1) VS = 15V VS = 18V COMP CAP PINS 1 TO 8 (pF) TA = 25oC RL = 2k CL = 20pF CC = 0 NONINVERTING GAIN (dB), INVERTING GAIN (dB) CLOSED LOOP GAIN (dB) FIGURE 13. OPEN LOOP GAIN vs FREQUENCY FIGURE 14. REQUIRED COMPENSATION CAPACITANCE vs CLOSED LOOP GAIN OPEN LOOP OUTPUT IMPEDANCE () TA = 25oC RL = 2k CL = 20pF SLEW RATE (V/s) 80 350 300 TA = 25oC VS = 15V +15V 200 3 + 7 HEWLETT PACKARD VECTOR IMPEDANCE METER4815A 60 CA3100 6 4 VO 40 VS = 15V 20 10V 100 2 1 5 10 K -15V 0 5 10 15 20 25 0 10 20 30 40 COMP CAP PINS 1 TO 8 (pF) FREQUENCY (MHz) FIGURE 15. SLEW RATE vs COMPENSATION CAPACITANCE FIGURE 16. TYPICAL OPEN LOOP OUTPUT IMPEDANCE vs FREQUENCY 106 TA = 25oC VS = 15V TOTAL INPUT REFERRED NOISE VOLTAGE (VRMS) 30 BW AT 6dB = 1MHz OPEN LOOP DIFFERENTIAL INPUT IMPEDANCE () TA = 25oC 20 105 10 104 0 102 103 103 SOURCE RESISTANCE () 104 0.1 1 10 100 FREQUENCY (MHz) FIGURE 17. WIDEBAND INPUT NOISE VOLTAGE vs SOURCE RESISTANCE FIGURE 18. TYPICAL OPEN LOOP DIFFERENTIAL INPUT IMPEDANCE vs FREQUENCY 3-6 CA3100 Typical Performance Curves 25 TA = 25oC VS = 15V OUTPUT VOLTAGE (VP-P) 20 (Continued) COMMON MODE INPUT VOLTAGE RANGE (V) TA = 25oC 15.0 12.5 10.0 7.5 5.0 2.5 0 +VICR -VICR 15 CIRCUIT FIG. 3 (FOLLOWER) 10 CIRCUIT FIG. 2 10X AMPL 5 0 0.01 0.1 1 FREQUENCY (MHz) 10 100 0 2.5 5 7.5 10 12.5 15 17.5 20 SUPPLY VOLTAGE (V) FIGURE 19. MAXIMUM OUTPUT VOLTAGE SWING vs FREQUENCY FIGURE 20. COMMON MODE INPUT VOLTAGE RANGE vs SUPPLY VOLTAGE TA = 25oC MAXIMUM OUTPUT VOLTAGE (V) 15 12.5 10 7.5 5 2.5 0 SUPPLY CURRENT (mA) VOM VOM + 15 12.5 10 7.5 5 2.5 0 0 TA = 25oC 0 2.5 5 7.5 10 12.5 15 17.5 20 2.5 5 7.5 10 12.5 15 17.5 20 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) FIGURE 21. MAXIMUM OUTPUT VOLTAGE vs SUPPLY VOLTAGE FIGURE 22. SUPPLY CURRENT vs SUPPLY VOLTAGE TA = 25oC 15.0 INPUT BIAS CURRENT (A) 12.5 10.0 7.5 5.0 2.5 0 0 2.5 5 7.5 10 12.5 15 17.5 20 SUPPLY VOLTAGE (V) FIGURE 23. INPUT BIAS CURRENT vs SUPPLY VOLTAGE 3-7 |
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