Semiconductor CT T ODU CEMEN 7 R P E A 74 T L 7 E OL REP 00-442OBS ENDED 8 1 m s.co MM ions ECO pplicat p@harri R O N ral A centap Cent : Call or email CA3028A January 1999 File Number 382.5 Differential/Cascode Amplifier for Commercial and Industrial Equipment from DC to 120MHz Features The CA3028A is a differential/cascode amplifier designed for use in communications and industrial equipment operating at frequencies from DC to 120MHz. • Balanced Differential Amplifier Configuration with Controlled Constant Current Source [ /Title (CA30 28A) Part Number Information /SubPART NUMBER TEMP. ject (BRAND) RANGE (oC) PACKAGE (DifCA3028A -55 to 125 8 Pin Metal Can ferenCA3028AE -55 to 125 8 Ld PDIP tial/Ca CA3028AM96 -55 to 125 8 Ld SOIC Tape scode (3028A) and Reel Amplifier for Pinouts ComCA3028A (PDIP, SOIC) merTOP VIEW cial and 1 8 Indus2 7 trial 3 6 Equipment 4 5 from DC to 120M CA3028A (METAL CAN) Hz) TOP VIEW /Autho r () 8 /Key1 7 words 2 6 (Harris 5 3 Semi4 • Controlled for Input Offset Voltage, Input Offset Current and Input Bias Current • Single-Ended and Dual-Ended Operation Applications PKG. NO. • RF and IF Amplifiers (Differential or Cascode) T8.C • DC, Audio and Sense Amplifiers E8.3 • Converter in the Commercial FM Band M8.15 • Oscillator • Mixer • Limiter • Related Literature - Application Note AN5337 “Application of the CA3028 Integrated Circuit Amplifier in the HF and VHF Ranges.” This note covers characteristics of different operating modes, noise performance, mixer, limiter, and amplifier design considerations Schematic Diagram (Terminal Numbers Apply to All Packages) 8 1 R1 6 Q1 Q2 5 7 5kΩ 2 Q3 4 R2 2.8kΩ R3 500Ω 3 SUBSTRATE AND CASE 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. Copyright © Harris Corporation 1999 CA3028A Operating Conditions Thermal Information Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC Thermal Resistance (Typical, Note 1) θJA (oC/W) θJC (oC/W) Metal Can Package . . . . . . . . . . . . . . . 225 140 PDIP Package . . . . . . . . . . . . . . . . . . . 155 N/A SOIC Package . . . . . . . . . . . . . . . . . . . 185 N/A Maximum Junction Temperature (Metal Can Package). . . . . . . .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. NOTE: 1. θJA is measured with the component mounted on an evaluation PC board in free air. Absolute Maximum Voltage Ratings TA = 25oC The following chart gives the range of voltages which can be applied to the terminals listed horizontally with respect to the terminals listed vertically. For example, the voltage range of the horizontal Terminal 4 with respect to Terminal 2 is -1V to +5V. TERM NO. 1 1 Absolute Maximum Current Ratings 2 3 4 5 6 7 8 TERM NO. IIN mA IOUT mA 0 to -15 0 to -15 0 to -15 +5 to -5 Note 3 Note 3 +20 to 0 1 0.6 0.1 +5 to -11 +5 to -1 +15 to 0 Note 3 +15 to 0 Note 3 2 4 0.1 +10 to 0 +15 to 0 +24 to 0 +15 to 0 +24 to 0 3 0.1 23 +15 to 0 Note 3 Note 3 Note 3 4 20 0.1 +20 to 0 Note 3 Note 3 5 0.6 0.1 Note 3 Note 3 6 20 0.1 Note 3 7 4 0.1 8 20 0.1 2 3 (Note 2) 4 5 6 7 8 NOTES: 2. Terminal No. 3 is connected to the substrate and case. 3. Voltages are not normally applied between these terminals. Voltages appearing between these terminals will be safe, if the specified voltage limits between all other terminals are not exceeded. TA = 25oC Electrical Specifications PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT VCC = 6V, VEE = -6V - 16.6 70 µA VCC = 12V, VEE = -12V - 36 106 µA VCC = 6V, VEE = -6V 0.8 1.25 2.0 mA VCC = 12V, VEE = -12V 2.0 3.3 5.0 mA VCC = 12V, VAGC = 9V - 1.28 - mA VCC = 12V, VAGC = 12V - 1.65 - mA VCC = 6V, VEE = -6V 0.5 0.85 1.0 mA VCC = 12V, VEE = -12V 1.0 1.65 2.1 mA VCC = 6V, VEE = -6V 24 36 54 mW VCC = 12V, VEE = -12V 120 175 260 mW DC CHARACTERISTICS Input Bias Current (Figures 1, 10) Quiescent Operating Current (Figures 1,11, 12) AGC Bias Current (Into Constant Current Source Terminal 7) (Figures 2, 13) Input Current (Terminal 7) II I6, I8 I7 I7 Power Dissipation (Figures 1, 14) 2 PT CA3028A TA = 25oC (Continued) Electrical Specifications PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT DYNAMIC CHARACTERISTICS Power Gain (Figures 3, 4, 5, 15, 17, 19) Noise Figure (Figures 3, 4, 5, 16, 18, 19) Input Admittance (Figures 20, 21) Reverse Transfer Admittance (Figures 22, 23) Forward Transfer Admittance (Figures 24, 25) Output Admittance (Figures 26, 27) Output Power (Untuned) (Figures 6, 28) AGC Range (Maximum Power Gain to Full Cutoff) (Figures 7, 29) Voltage Gain (Figures 8, 9, 30, 31) Peak-to-Peak Output Current GP NF Y11 Y12 Y21 Y22 Cascode 16 20 - dB Diff. Amp. 14 17 - dB f = 10.7MHz VCC = 9V Cascode 35 39 - dB Diff. Amp. 28 32 - dB f = 100MHz, VCC = 9V Cascode - 7.2 9.0 dB Diff. Amp. - 6.7 9.0 dB Cascode - 0.6 + j1.6 - mS Diff. Amp. - 0.5 + j0.5 - mS Cascode - 0.0003 - j0 - mS Diff. Amp. - 0.01 j0.0002 - mS Cascode - 99 - j18 - mS Diff. Amp. - -37 + j0.5 - mS Cascode - 0+ j0.08 - mS Diff. Amp. - 0.04 + j0.23 - mS f = 10.7MHz, VCC = 9V f = 10.7MHz, VCC = 9V f = 10.7MHz, VCC = 9V f = 10.7MHz, VCC = 9V PO f = 10.7MHz, VCC = 9V Diff. Amp., 50Ω Input-Output - 5.7 - µW AGC f = 10.7MHz, VCC = 9V Diff. Amp. - 62 - dB A f = 10.7MHz, VCC = 9V, RL = 1kΩ Cascode - 40 - dB Diff. Amp. - 30 - dB f = 10.7MHz, eIN = 400mV, Diff. Amp. VCC = 9V 2.0 4.0 7.0 mA VCC = 12V 3.5 6.0 10 mA IP-P 3 f = 100MHz VCC = 9V CA3028A Test Circuits VCC + I6 3µF + - - I8 6 8 1kΩ 5 6 1 2kΩ ICUT ICUT - 3 8 I1 7 3 + 5 - 7 + - I3 + + VCC 1 I7 I7 I5 3µF 5kΩ VCC VEE NOTE: Power Dissipation = I 3 V EE + ( I 6 + I 8 )V CC . FIGURE 1. INPUT OFFSET CURRENT, INPUT BIAS CURRENT, POWER DISSIPATION, AND QUIESCENT OPERATING CURRENT TEST CIRCUIT FIGURE 2. AGC BIAS CURRENT TEST CIRCUIT (DIFFERENTIAL AMPLIFIER CONFIGURATION) VCC 7 1kΩ 470pF L2 8 2 ICUT 1 C2 8 L1 50Ω RF VOLTMETER (NOTE 4) OR NOISE AMP (NOTE 5) 1 4 50Ω SIGNAL SOURCE (NOTE 4) OR NOISE DIODE (NOTE 5) 0.001µF 0.001µF C1 (pF) C2 (pF) 10.7 20 - 60 20 - 60 100 3 - 30 2kΩ 6 3 50Ω SIGNAL SOURCE (NOTE 6) OR NOISE DIODE (NOTE 7) 5 0.001µF C1 (pF) 50Ω RF VOLTMETER (NOTE 6) OR NOISE AMP (NOTE 7) 2kΩ L1 (µH) L2 (µH) f (MHz) 3-5 3-5 10.7 30 - 60 20 - 50 100 2 - 15 NOTES: C2 ICUT L1 3 - 30 0.1 - 0.25 0.15 - 0.3 L2 7 6 3 1kΩ C1 5 C1 f (MHz) VCC 0.001 µF C2 (pF) 2 - 15 L1 (µH) L2 (µH) 3-6 3-6 0.2 - 0.5 0.2 - 0.5 NOTES: 4. For Power Gain Test. 6. For Power Gain Test. 5. For Noise Figure Test. 7. For Noise Figure Test. FIGURE 3. POWER GAIN AND NOISE FIGURE TEST CIRCUIT (CASCODE CONFIGURATION) FIGURE 4. POWER GAIN AND NOISE FIGURE TEST CIRCUIT (DIFFERENTIAL AMPLIFIER CONFIGURATION AND TERMINAL 7 CONNECTED TO VCC) 4 CA3028A Test Circuits (Continued) 5kΩ VCC 1kΩ 7 L2 8 C1 1 6 C2 ICUT L1 3 50Ω SIGNAL SOURCE (NOTE 8) OR NOISE DIODE (NOTE 9) 5 50Ω RF VOLTMETER (NOTE 8) OR NOISE AMP (NOTE 9) VCC 0.001µF 2kΩ VCC 1kΩ f (MHz) C1 (pF) C2 (pF) L1 (µH) 10.7 30 - 60 20 - 50 100 2 - 15 2 - 15 7 5 L2 (µH) 0.01 µF 3-6 3-6 0.2 - 0.5 0.2 - 0.5 2kΩ 8 50Ω ICUT 1 6 0.01 µF 3 INPUT 0.01µF 50Ω NOTES: OUTPUT 8. For Power Gain Test. 0.01µF 9. For Noise Figure Test. FIGURE 5. POWER GAIN AND NOISE FIGURE TEST CIRCUIT (DIFFERENTIAL AMPLIFIER CONFIGURATION) FIGURE 6. OUTPUT POWER TEST CIRCUIT 5kΩ VCC 1kΩ 7 10Ω L2 8 C1 C2 1 50Ω SIGNAL SOURCE VCC 6 1kΩ LOAD 50Ω RF VOLTMETER ICUT L1 3 8 5 7 OUTPUT 6 1 0.001µF 2kΩ INPUT 2 50Ω f (MHz) C1 (pF) C2 (pF) 10.7 30 - 60 20 - 50 100 2 - 15 2 - 15 L1 (µH) L2 (µH) 3-6 3-6 0.2 - 0.5 0.2 - 0.5 FIGURE 7. AGC RANGE TEST CIRCUIT (DIFFERENTIAL AMPLIFIER) 5 0.01µF 5 ICUT 1kΩ 3 4 0.01µF 0.01µF 2kΩ 0.01µF FIGURE 8. TRANSFER CHARACTERISTIC (VOLTAGE GAIN) TEST CIRCUIT (10.7MHz) CASCODE CONFIGURATION CA3028A Test Circuits (Continued) VCC 10Ω 1kΩ LOAD 8 7 INPUT 0.01µF OUTPUT 6 1 50Ω 5 ICUT 1kΩ 3 0.01µF 10µH 2kΩ 0.001µF FIGURE 9. TRANSFER CHARACTERISTIC (VOLTAGE GAIN) TEST CIRCUIT (10.7MHz) DIFFERENTIAL AMPLIFIER CONFIGURATION Typical Performance Curves QUIESCENT OPERATING CURRENT (mA) INPUT BIAS CURRENT (µA) 75.0 POSITIVE DC SUPPLY VOLTS (VCC) NEGATIVE DC SUPPLY VOLTS (VEE) 62.5 50.0 VCC = +12V VEE = -12V 37.5 25.0 12.5 0 -75 VCC = +6V VEE = -6V -50 -25 0 25 50 75 TEMPERATURE (oC) 100 125 FIGURE 10. INPUT BIAS CURRENT vs TEMPERATURE 6 DIFFERENTIAL AMPLIFIER CONFIGURATION 3.5 VEE = -12V 2.5 VEE = -9V 1.5 -75 -50 -25 0 25 50 75 TEMPERATURE (oC) 100 FIGURE 11. QUIESCENT OPERATING CURRENT vs TEMPERATURE 125 CA3028A Typical Performance Curves (Continued) 3.5 DIFFERENTIAL AMPLIFIER CONFIGURATION TA = 25oC 2.5 AGC BIAS CURRENT (mA) 2 2.0 1.5 1.0 0.5 0 0 -5 -10 -15 DC EMITTER SUPPLY (V) 0 40 180 VCC = +12V VEE = -12V 35 170 VCC = +6V VEE = -6V 30 160 -50 -25 0 25 50 75 100 2 4 10 6 8 AGC BIAS, TERMINAL NO. 7 (V) 12 FIGURE 13. AGC BIAS CURRENT vs BIAS VOLTAGE (TERMINAL 7) TOTAL POWER DISSIPATION, ±6V (mW) TOTAL POWER DISSIPATION, ±12V (mW) FIGURE 12. OPERATING CURRENT vs VEE VOLTAGE 150 1 0 -20 CASCODE CONFIGURATION TA = 25oC 45 40 VCC = +12V 35 POWER GAIN (dB) OPERATING CURRENT, I6 OR I8 (mA) VCC = 6V 3.0 30 25 VCC = +9V 20 15 10 5 0 10 25 125 20 TEMPERATURE (oC) FIGURE 14. POWER DISSIPATION vs TEMPERATURE 30 40 50 FREQUENCY (MHz) 60 70 80 90 100 FIGURE 15. POWER GAIN vs FREQUENCY (CASCODE CONFIGURATION) CASCODE CONFIGURATION TA = 25oC, f = 100MHz 40 DIFFERENTIAL DIFFERENTIAL AMPLIFIER AMPLIFIER CONFIGURATION CONFIGURATION TA = 25oC POWER GAIN (dB) 35 NOISE FIGURE (dB) 9 8 7 6 VCC = +12V 30 25 20 VCC = +9V 15 10 5 5 9 12 10 11 DC COLLECTOR SUPPLY VOLTAGE (V) FIGURE 16. 100MHz NOISE FIGURE vs COLLECTOR SUPPLY VOLTAGE (CASCODE CONFIGURATION) 7 0 10 20 30 40 50 60 70 80 90 100 FREQUENCY (MHz) FIGURE 17. POWER GAIN vs FREQUENCY (DIFFERENTIAL AMPLIFIER CONFIGURATION) CA3028A Typical Performance Curves (Continued) NOISE FIGURE (dB) OR POWER GAIN (dB) DIFFERENTIAL AMPLIFIER CONFIGURATION TA = 25oC, f = 100MHz NOISE FIGURE (dB) 9 8 7 6 5 9 DIFFERENTIAL AMPLIFIER CONFIGURATION TA = 25oC, VCC = +9V, f = 100MHz 20 POWER GAIN 15 10 NOISE FIGURE 5 0 9 12 10 11 DC COLLECTOR SUPPLY VOLTAGE (V) FIGURE 18. 100MHz NOISE FIGURE vs COLLECTOR SUPPLY VOLTAGE (DIFFERENTIAL AMPLIFIER CONFIGURATION) 8 DIFFERENTIAL AMPLIFIER CONFIGURATION TA = 25oC, VCC = +9V 3 INPUT CONDUCTANCE (g11) OR SUSCEPTANCE (b11) (mS) INPUT CONDUCTANCE (g11) OR SUSCEPTANCE (b11) (mS) 7 6 5 4 b11 2 g11 1 2 3 FIGURE 19. 100MHz NOISE FIGURE AND POWER GAIN vs BASE-TO-EMITTER BIAS VOLTAGE (TERMINAL 7) CASCODE CONFIGURATION, TA = 25oC IC(STAGE) = 4.5mA, VCC = +9V 3 7 6 5 4 POSITIVE DC BIAS VOLTAGE (V) 0 IC OF EACH TRANSISTOR = 2.2mA 2 b11 1 g11 0 10 FREQUENCY (MHz) 1 10 FREQUENCY (MHz) 100 FIGURE 20. INPUT ADMITTANCE (Y11) vs FREQUENCY (CASCODE CONFIGURATION) FIGURE 21. INPUT ADMITTANCE (Y11) vs FREQUENCY (DIFFERENTIAL AMPLIFIER CONFIGURATION) REVERSE TRANSFER CONDUCTANCE (g12) OR SUSCEPTANCE (b12) (mS) 100 REVERSE TRANSFER CONDUCTANCE (g12) OR SUSCEPTANCE (b12) (µS) 1 CASCODE CONFIGURATION, TA = 25oC IC(STAGE) = 4.5mA, VCC = +9V 20 15 10 g12 5 0 b12 -5 -10 -15 -20 1 10 FREQUENCY (MHz) FIGURE 22. REVERSE TRANSADMITTANCE (Y12) vs FREQUENCY (CASCODE CONFIGURATION) 8 100 0.3 DIFFERENTIAL AMPLIFIER CONFIGURATION TA = 25oC, VCC = +9V IC OF EACH TRANSISTOR = 2.2mA 0.2 g12 0.1 0 b12 -0.1 -0.2 -0.3 10 20 30 40 50 60 80 100 200 FREQUENCY (MHz) FIGURE 23. REVERSE TRANSADMITTANCE (Y12) vs FREQUENCY (DIFFERENTIAL AMPLIFIER CONFIGURATION) 300 CA3028A (Continued) FORWARD TRANSFER CONDUCTANCE (g21) OR SUSCEPTANCE (b21) (mS) CASCODE CONFIGURATION, TA = 25oC IC(STAGE) = 4.5mA, VCC = +9V 100 80 g21 60 40 20 0 -20 b21 -40 -60 -80 1 2 3 4 5 6 7 8 910 DIFFERENTIAL AMPLIFIER CONFIGURATION TA = 25oC, VCC = +9V IC OF EACH TRANSISTOR = 2.2mA 30 20 b21 10 0 -10 -20 g21 -30 -40 100 1 10 FREQUENCY (MHz) FREQUENCY (MHz) CASCODE CONFIGURATION, TA = 25oC IC(STAGE) = 4.5mA, VCC = +9V 3 b22 2 1 0 0 -0.02 g22 -0.04 -0.06 -0.08 1 OUTPUT CONDUCTANCE (g22) (mS) FIGURE 25. FORWARD TRANSADMITTANCE (Y21) vs FREQUENCY (DIFFERENTIAL AMPLIFIER CONFIGURATION) OUTPUT SUSCEPTANCE (b22) (mS) OUTPUT CONDUCTANCE (g22) (mS) FIGURE 24. FORWARD TRANSADMITTANCE (Y21) vs FREQUENCY (CASCODE CONFIGURATION) 100 10 FREQUENCY (MHz) FIGURE 26. OUTPUT ADMITTANCE (Y22) vs FREQUENCY (CASCODE CONFIGURATION) DIFFERENTIAL AMPLIFIER CONFIGURATION, TA = 25oC IC OF EACH TRANSISTOR = 2.2mA, VCC = +9V OUTPUT POWER (µW) 2 1.5 0.6 b22 0.5 1.0 0.4 0.3 0.2 0.5 g22 0.1 0 100 0 10 FREQUENCY (MHz) 1 FIGURE 27. OUTPUT ADMITTANCE (Y22) vs FREQUENCY (DIFFERENTIAL AMPLIFIER CONFIGURATION) DIFFERENTIAL AMPLIFIER CONFIGURATION TA = 25oC, CONSTANT POWER INPUT = 2µW 10 100 DIFFERENTIAL AMPLIFIER CONFIGURATION TA = 25oC, VCC = +9V 40 VCC = +12V POWER GAIN (dB) f = 10.7MHz VCC = +9V 20 100MHz 0 -20 -40 1 10 100 FREQUENCY (MHz) FIGURE 28. OUTPUT POWER vs FREQUENCY - 50Ω INPUT AND 50Ω OUTPUT (DIFFERENTIAL AMPLIFIER CONFIGURATION) 9 9 8 7 6 5 4 3 2 1 0 DC BIAS VOLTAGE ON TERMINAL NO. 7 (V) FIGURE 29. AGC CHARACTERISTICS OUTPUT SUSCEPTANCE (b22) (mS) FORWARD TRANSFER CONDUCTANCE (g21) OR SUSCEPTANCE (b21) (mS) Typical Performance Curves CA3028A Typical Performance Curves (Continued) 3.0 CASCODE CONFIGURATION TA = 25oC, f = 10.7MHz DIFFERENTIAL AMPLIFIER CONFIGURATION TA = 25oC, f = 10.7MHz 4 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 5 VCC = +12V VCC = +9V 3 2 1 2.5 VCC = +12V 2.0 1.5 VCC = +9V 1.0 0.5 0 0 0.05 0.1 INPUT VOLTAGE (V) 0.15 FIGURE 30. TRANSFER CHARACTERISTICS (CASCODE CONFIGURATION) 0 0.05 0.1 INPUT VOLTAGE (V) 0.15 FIGURE 31. TRANSFER CHARACTERISTICS (DIFFERENTIAL AMPLIFIER CONFIGURATION) Glossary of Terms AGC Bias Current - The current drawn by the device from the AGC voltage source, at maximum AGC voltage. AGC Range - The total change in voltage gain (from maximum gain to complete cutoff) which may be achieved by application of the specified range of dc voltage to the AGC input terminal of the device. Common Mode Rejection Ratio - The ratio of the full differential voltage gain to the common mode voltage gain. Power Dissipation - The total power drain of the device with no signal applied and no external load current. Input Bias Current - The average value (one half the sum) of the currents at the two input terminals when the quiescent operating voltages at the two output terminals are equal. Input Offset Current - The difference in the currents at the two input terminals when the quiescent operating voltages at the two output terminals are equal. Input Offset Voltage - The difference in the DC voltages which must be applied to the input terminals to obtain equal quiescent operating voltages (zero output offset voltage) at the output terminals. 10 Noise Figure - The ratio of the total noise power of the device and a resistive signal source to the noise power of the signal source alone, the signal source representing a generator of zero impedance in series with the source resistance. Power Gain - The ratio of the signal power developed at the output of the device to the signal power applied to the input, expressed in dB. Quiescent Operating Current - The average (DC) value of the current in either output terminal. Voltage Gain - The ratio of the change in output voltage at either output terminal with respect to ground, to a change in input voltage at either input terminal with respect to ground, with the other input terminal at AC ground.