MC33078 Low noise dual operational amplifier Features ■ Low voltage noise: 4.5 nV/√Hz ■ High gain bandwidth product: 15 MHz ■ High slew rate: 7 V/µs ■ Low distortion: 0.002% ■ Large output voltage swing: +14.3 V / -14.6 V ■ Low input offset voltage ■ Excellent frequency stability ■ ESD protection 2 kV ■ Macromodel included in this specification N DIP8 (Plastic package) D SO-8 (Plastic micropackage) Description The MC33078 is a monolithic dual operational amplifier particularly well suited for audio applications. Pin connections (top view) It offers low voltage noise (4.5 nV/√Hz) and high frequency performance (15 MHz gain bandwidth product, 7 V/µs slew rate). In addition, the MC33078 has a very low distortion (0.002%) and excellent phase/gain margins. Output 1 1 Inverting input 1 2 - Non-inverting input 1 3 + - 4 V CC 8 VCC+ 7 Output 2 - 6 Inverting input 2 + 5 Non-inverting input 2 The output stage allows a large output voltage swing and symmetrical source and sink currents. March 2008 Rev 5 1/15 www.st.com 15 Absolute maximum ratings and operating conditions 1 MC33078 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings (AMR) Symbol VCC Parameter Supply voltage Vid Differential input voltage - note Vi Input voltage - see note 1 Value Unit ±18 or +36 V ±30 V ±15 V Infinite s (1) Output short circuit duration Tj Junction temperature +150 °C Tstg Storage temperature -65 to +150 °C Rthja Thermal resistance junction to ambient(2) (3) SO-8 DIP8 125 85 °C/W Rthjc Thermal resistance junction to case(2) (3) SO-8 DIP8 40 41 °C/W HBM: human body model(4) 2 kV 200 V 1.5 kV ESD MM: machine model (5) CDM: charged device model(6) 1. Either or both input voltages must not exceed the magnitude of VCC+ or VCC-. 2. Short-circuits can cause excessive heating and destructive dissipation. 3. Rth are typical values. 4. Human body model: A 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. 5. Machine model: A 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating. 6. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins. Table 2. Operating conditions Symbol 2/15 Parameter Value Unit VCC Supply voltage ±2.5 to ±15 V Toper Operating free-air temperature range -40 to 105 °C MC33078 Schematic diagram 2 Schematic diagram Figure 1. Schematic diagram (1/2 MC33078) VCC Output Inverting Input Non-inverting Input VCC 3/15 Electrical characteristics MC33078 3 Electrical characteristics Table 3. VCC+ = +15V, VCC- = -15V, Tamb = 25°C (unless otherwise specified) Symbol Vio DVio Parameter Min. Input offset voltage (Vo = 0V, Vic = 0V) Tmin ≤ Tamb ≤ Tmax Input offset voltage drift Vo = 0V, Vic = 0V, Tmin ≤ Tamb ≤ Tmax Typ. Max. Unit 0.15 2 3 mV 2 µV/°C Iio Input offset current (Vo = 0V, Vic = 0V) Tmin ≤ Tamb ≤Tmax 10 150 175 nA Iib Input bias current (Vo = 0V, Vic = 0V) Tmin ≤ Tamb ≤ Tmax 250 750 800 nA Vicm Input common mode voltage range (ΔVio = 5mV, Vo = 0V) ±13 ±14 Avd Large signal voltage gain (RL = 2kΩ, Vo = ±10V) Tmin ≤ Tamb ≤ Tmax 90 85 100 ±Vopp Output voltage swing (Vid = ±1V) RL = 600Ω RL = 600Ω RL = 2.0kΩ RL = 2.0kΩ RL = 10kΩ RL = 10kΩ 13.2 13.5 12.2 -12.7 14 -14.2 14.3 -14.6 V dB V -13.2 -14 CMR Common-mode rejection ratio (Vic = ±13V) 80 100 dB SVR Supply voltage rejection ratio VCC+ / VCC- = +15V / -15V to +5V / -5V 80 105 dB 15 20 29 37 mA Io Output short-circuit current (Vid = ±1V, output to ground) Source Sink ICC Supply current (Vo = 0V, all amplifiers) Tmin ≤ Tamb ≤ Tmax SR Slew rate Vi = -10V to +10V, RL = 2kΩ, CL = 100pF, AV = +1 5 7 V/µs GBP Gain bandwidth product RL = 2kΩ, CL = 100pF, f = 100kHz 10 15 MHz B Unity gain bandwidth (Open loop) 9 MHz Am Gain margin (RL = 2kΩ), CL = 0pF CL = 100pF -11 -6 dB φm Phase margin (RL = 2kΩ), CL = 0pF CL = 100pF 55 30 Degrees en Equivalent input noise voltage RS = 100Ω, f = 1kHz 4.5 nV/√Hz in Equivalent input noise current (f = 1kHz) 0.5 pA/√Hz 4/15 4 5 5.5 mA MC33078 Table 3. Electrical characteristics VCC+ = +15V, VCC- = -15V, Tamb = 25°C (unless otherwise specified) (continued) Symbol THD Parameter Total harmonic distortion RL = 2kΩ, f = 20Hz to 20kHz, Vo = 3Vrms, AV = +1 Min. Typ. Max. Unit 0.002 % Channel separation f = 20Hz to 20kHz 120 dB Full power bandwidth Vo = 27Vpp, RL = 2kΩ, THD ≤ 1% 120 kHz Zo Output impedance Vo = 0V, f = 9MHz 37 Ω Ri Input resistance Vic = 0V 175 kΩ Ci Input capacitance Vic = 0V 12 pF VO1/VO2 FPB 5/15 Electrical characteristics Figure 2. MC33078 Total supply current vs. supply voltage Figure 3. Output voltage vs. supply voltage 5 15 4 10 3.5 3 Output Voltage (V) Total Supply Current (mA) 4.5 2.5 2 1.5 5 0 -5 1 0.5 -10 0 0 5 10 15 20 25 -15 30 0 5 Supply Voltage (V) Figure 4. 10 15 Supply Voltage (V) Equivalent input noise voltage vs. frequency Figure 5. Output short circuit current vs. output voltage Output Short Circuit Current (mA) 50 VCC = ±15V, G = 100 Rs = 100, Tamb = 25°C 40 30 20 VCC = 0/30V Tamb = 25°C 10 0 -10 -20 -30 -40 0 10 20 30 Output Voltage (V) Figure 6. Output voltage vs. supply voltage Figure 7. THD + noise vs. frequency 15 1 THD+Noise (%) Output Voltage (V) 10 5 Vid = ±1V RL = 2kΩ 0 -5 0.1 RL = 2kΩ, Vo = 3Vrms VCC = ±15V, Av = 1 0.01 -10 0.001 0.01 -15 0 5 10 Supply Voltage (V) 6/15 15 0.1 1 Frequency (kHz) 10 100 MC33078 Figure 8. Electrical characteristics Voltage gain and phase vs. frequency 50 Figure 9. THD noise vs. Vout 180 1.000 40 120 60 10 0 0 RL = 2kΩ, CL = 100pF VCC = ±15V, G = -100 -10 THD+Noise (%) 20 Phase (Deg) Gain (dB) 30 RL = 2kΩ, f = 1kHz VCC = ±15V, Av = 10 0.100 0.010 -60 -20 0.001 -30 -120 10 100 1000 Frequency (kHz) 10000 100000 1 2 3 4 5 6 7 8 9 10 Vout (Vrms) 7/15 Macromodel MC33078 4 Macromodel 4.1 Important note concerning this macromodel Please consider the following remarks before using this macromodel. ● All models are a trade-off between accuracy and complexity (i.e. simulation time). ● Macromodels are not a substitute to breadboarding; rather, they confirm the validity of a design approach and help to select surrounding component values. ● A macromodel emulates the nominal performance of a typical device within specified operating conditions (temperature, supply voltage, for example). Thus the macromodel is often not as exhaustive as the datasheet, its purpose is to illustrate the main parameters of the product. Data derived from macromodels used outside of the specified conditions (VCC, temperature, for example) or even worse, outside of the device operating conditions (VCC, Vicm, for example), is not reliable in any way. Section 4.2 provides the electrical characteristics resulting from the use of this macromodel. 4.2 Electrical characteristics from macromodelization Table 4. Electrical characteristics resulting from macromodel simulation at VCC+ = +15V, VCC- = -15V, Tamb = 25°C (unless otherwise specified) Symbol Conditions Vio 8/15 Value Unit 0 mV AVD RL = 2kΩ, VO = ±10V 100 dB ICC No load, per operator 2 mA Vicm ΔVio = 5mV, VO = 0V 28 V Vopp RL = 2kΩ 28.2 V Isink VO = 0V 37 mA Isource VO = 0V 29 mA GBP RL = 2kΩ, CL = 100pF 15 MHz SR RL = 10kΩ, CL = 100pF, AV = +1 7 V/µs φm RL = 2kΩ, CL = 0pF 55 Degrees MC33078 4.3 Macromodel Macromodel code ** Standard Linear Ics Macromodels, 1993. ** CONNECTIONS : * 1 INVERTING INPUT * 2 NON-INVERTING INPUT * 3 OUTPUT * 4 POSITIVE POWER SUPPLY * 5 NEGATIVE POWER SUPPLY .SUBCKT MC33078 1 3 2 4 5 ******************************************************** .MODEL MDTH D IS=1E-8 KF=2.286238E-16 CJO=10F * INPUT STAGE CIP 2 5 1.200000E-11 CIN 1 5 1.200000E-11 EIP 10 5 2 5 1 EIN 16 5 1 5 1 RIP 10 11 2.363636E+00 RIN 15 16 2.363636E+00 RIS 11 15 1.224040E+01 DIP 11 12 MDTH 400E-12 DIN 15 14 MDTH 400E-12 VOFP 12 13 DC 0 VOFN 13 14 DC 0 IPOL 13 5 1.100000E-04 CPS 11 15 2.35E-09 DINN 17 13 MDTH 400E-12 VIN 17 5 1.000000e+00 DINR 15 18 MDTH 400E-12 VIP 4 18 1.000000E+00 FCP 4 5 VOFP 1.718182E+01 FCN 5 4 VOFN 1.718182E+01 FIBP 2 5 VOFN 4.545455E-03 FIBN 5 1 VOFP 4.545455E-03 * AMPLIFYING STAGE FIP 5 19 VOFP 9.545455E+02 FIN 5 19 VOFN 9.545455E+02 CC 19 29 1.500000E-08 HZTP 30 29 VOFP 1.523529E+02 HZTN 5 30 VOFN 1.523529E+02 DOPM 51 22 MDTH 400E-12 DONM 21 52 MDTH 400E-12 HOPM 22 28 VOUT 5.172414E+03 VIPM 28 4 1.500000E+02 HONM 21 27 VOUT 4.054054E+03 VINM 5 27 1.500000E+02 DBIDON1 19 53 MDTH 400E-12 V1 51 53 0.68 DBIDON2 54 19 MDTH 400E-12 V2 54 52 0.68 RG11 51 5 3.04E+05 RG12 51 4 3.04E+05 9/15 Macromodel RG21 52 5 0.6072E+05 RG22 52 4 0.6072E+05 E1 50 40 51 0 1 E2 40 39 52 0 1 EDEC1 38 39 4 0 0.5 EDEC2 0 38 5 0 0.5 DOP 51 25 MDTH 400E-12 VOP 4 25 1.474575E+00 DON 24 52 MDTH 400E-12 VON 24 5 1.474575E+00 RAJUS 50 5 1E12 GCOMP 5 4 4 5 8.1566068E-04 RPM1 5 80 1E+06 RPM2 4 80 1E+06 GAVPH 5 82 50 80 3.26E-03 RAVPHGH 82 4 613 RAVPHGB 82 5 613 RAVPHDH 82 83 1000 RAVPHDB 82 84 1000 CAVPHH 4 83 0.159E-09 CAVPHB 5 84 0.159E-09 EOUT 26 23 82 5 1 VOUT 23 5 0 ROUT 26 3 4.780354E+01 COUT 3 5 1.000000E-12 .ENDS 10/15 MC33078 MC33078 5 Package information Package information In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 11/15 Package information 5.1 MC33078 DIP8 package information Figure 10. DIP8 package mechanical drawing Table 5. DIP8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Max. Min. Typ. 5.33 Max. 0.210 A1 0.38 0.015 A2 2.92 3.30 4.95 0.115 0.130 0.195 b 0.36 0.46 0.56 0.014 0.018 0.022 b2 1.14 1.52 1.78 0.045 0.060 0.070 c 0.20 0.25 0.36 0.008 0.010 0.014 D 9.02 9.27 10.16 0.355 0.365 0.400 E 7.62 7.87 8.26 0.300 0.310 0.325 E1 6.10 6.35 7.11 0.240 0.250 0.280 e 2.54 0.100 eA 7.62 0.300 eB L 12/15 Inches 10.92 2.92 3.30 3.81 0.430 0.115 0.130 0.150 MC33078 5.2 Package information SO-8 package information Figure 11. SO-8 package mechanical drawing Table 6. SO-8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Inches Max. Min. Typ. 1.75 0.069 A1 0.10 A2 1.25 b 0.28 0.48 0.011 0.019 c 0.17 0.23 0.007 0.010 D 4.80 4.90 5.00 0.189 0.193 0.197 E 5.80 6.00 6.20 0.228 0.236 0.244 E1 3.80 3.90 4.00 0.150 0.154 0.157 e 0.25 Max. 0.004 0.010 0.049 1.27 0.050 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k 1° 8° 1° 8° ccc 0.10 0.004 13/15 Ordering information 6 MC33078 Ordering information Table 7. Order codes Temperature range Order code Package Packing Marking DIP8 Tube MC33078N SO-8 Tube or Tape & reel 33078 SO-8 (Automotive grade) Tube or Tape & reel 33078Y MC33078N MC33078D MC33078DT -40, +105°C MC33078YD (1) MC33078YDT (1) 1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent are on-going. 7 Revision history Table 8. Document revision history Date Revision 10-Nov-2001 1 Initial release. 10-Jun-2005 2 PPAP references inserted in the datasheet, see order codes table. 30-Sep- 2005 3 The following changes were made in this revision: – Order codes table updated with complete list of markings and packages. – Reorganization of Chapter 4.3: Macromodel code on page 9. 16-Feb-2006 4 Corrected error in the first page title. 5 Added Rth and ESD values in absolute maximum ratings table. Added footnote for automotive grade order codes in order codes table. 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