MC33079 Low noise quad 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 ■ Excellent frequency stability ■ ESD protection 2 kV ■ Macromodel included in this specification DIP14 (Plastic package) SO-14 (Plastic micropackage) Description Pin connections (top view) The MC33079 is a monolithic quad operational amplifier particularly well suited for audio applications. Output 1 1 It offers low voltage noise (4.5 nV/√Hz) and high frequency performance (15 MHz gain bandwidth product, 7 V/µs slew rate). Inverting Input 1 2 - - 13 Inverting Input 4 Non-inverting Input 1 3 + + 12 Non-inverting Input 4 11 VCC - VCC + 4 In addition the MC33079 has a very low distortion (0.002%) and excellent phase/gain margins. Non-inverting Input 2 Inverting Input 2 The output stage allows a large output voltage swing and symmetrical source and sink currents. March 2008 14 Output 4 5 + + 10 Non-inverting Input 3 6 - - 9 Inverting Input 3 8 Output 3 Output 2 7 Rev 4 1/12 www.st.com 12 Schematic diagram (1/4 MC33079) 1 MC33079 Schematic diagram (1/4 MC33079) Figure 1. Schematic diagram (1/4 MC33079) VCC Inverting Input Non-inverting Input VCC 2/12 Output MC33079 2 Absolute maximum ratings and operating conditions Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings (AMR) Symbol VCC Vid Vi Parameter Supply voltage Differential input voltage Input voltage (1) (1) Output short-circuit duration Value Unit ±18 or +36 V ±30 V ±15 V Infinite s Tj Junction temperature +150 °C Tstg Storage temperature -65 to +150 °C Rthja Thermal resistance junction to ambient (2) (3) DIP14 SO-14 80 105 °C/W Rthjc Thermal resistance junction to case (2) (3) DIP14 SO-14 33 31 °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. Destructive dissipation can result from simultaneous shortcircuits on all amplifiers. 3. Rth are typical values. 4. Human body model: 100 pF discharged through a 1.5 kΩ resistor between two pins of the device, done for all couples of pin combinations with other pins floating. 5. Machine model: a 200 pF cap is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω), done for all couples of pin combinations with other pins floating. 6. Charged device model: all pins plus package are charged together to the specified voltage and then discharged directly to the ground. Table 2. Operating conditions Symbol Parameter Value Unit VCC Supply voltage ±2.5 to ±15 V Toper Operating free-air temperature range -40 to 105 °C Vicm Input common mode voltage range (ΔVio= 5mV, Vo= 0V) ±13 to ±14 V 3/12 Electrical characteristics MC33079 3 Electrical characteristics Table 3. VCC+ = +15V, VCC- = -15V, Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit 2.5 3.5 mV Vio Input offset voltage (Vo = 0V, Vic = 0V) Tmin ≤ Tamb ≤ Tmax DVio Input offset voltage drift Vo = 0V, Vic = 0V, Tmin ≤ Tamb ≤ Tmax 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 Avd ±Vopp CMR SVR Io 2 Large signal voltage gain (RL = 2kΩ, Vo = ±10V) Tmin ≤ Tamb ≤ Tmax Output voltage swing (Vid = ±1V) RL = 600Ω RL = 600Ω RL = 2.0kΩ RL = 2.0kΩ RL = 10kΩ RL = 10kΩ 90 85 13.2 13.5 Common-mode rejection ratio (Vic = ±13V) + Supply voltage rejection ratio (VCC / VCC-= +15V / -15V to +5V / -5V) Output short-circuit current (Vid = ±1V, output to ground) Source Sink µV/°C 100 12.2 -12.7 14 -14.2 14.3 -14.6 dB V -13.2 -14 80 100 dB 80 105 dB 15 20 29 37 mA 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 9 MHz B Unity gain bandwidth (open loop) 8 10 12 mA 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 4/12 MC33079 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 % 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 Channel separation (f = 20Hz to 20kHz) FPB 5/12 Electrical characteristics Figure 2. MC33079 Supply current vs. supply voltage Figure 3. Output voltage vs. supply voltage 10 15 8 Output Voltage (V) Supply Current (mA) 10 6 4 2 5 Vid = ±1V RL = 600Ω 0 -5 -10 0 0 5 10 15 20 25 -15 30 0 5 Supply Voltage (V) Equivalent input noise voltage vs. frequency Figure 5. Output Short Circuit Current (mA) Equivalent Input Noise Voltage (nV/VHz) Figure 4. 10 VCC = ±15V, Av = 100 Rs = 100Ω, Tamb = 25°C 8 6 4 2 0 0.01 60 40 20 VCC = 0/30V Tamb = 25°C 0 -20 -40 0.1 1 10 100 1000 0 10 20 30 Output Voltage (V) Output voltage vs. supply voltage Figure 7. 15 THD + noise vs. frequency 0.01 10 THD+Noise (%) Output Voltage (V) 15 Output short circuit current vs. output voltage Frequency (kHz) Figure 6. 10 Supply Voltage (V) 5 Vid = ±1V RL = 2kΩ 0 -5 RL = 2kΩ, Vo = 3Vrms VCC = ±15V gain = 10 0.005 gain = 1 -10 0 0.01 -15 0 5 10 Supply Voltage (V) 6/12 15 0.1 1 Frequency (kHz) 10 100 MC33079 Figure 8. Electrical characteristics Voltage gain and phase vs. frequency 60 180 phase 60 0 0 RL = 2kΩ, CL = 100pF VCC = ±15V, Av = -100 -20 THD+Noise (%) 120 gain 20 Total harmonic distortion vs. output voltage 0.020 Phase (Deg) 40 Gain (dB) Figure 9. 0.015 RL = 2kΩ, f = 1kHz VCC = ±15V, Av = 10 0.010 0.005 -60 0.000 -40 10 100 1000 10000 -120 100000 0 1 2 3 4 5 6 7 8 9 Vout (Vrms) Frequency (kHz) 7/12 Package information 4 MC33079 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. 4.1 DIP14 package information Figure 10. DIP14 package mechanical drawing Table 4. DIP14 package mechanical data Dimensions Ref. Millimeters Min. a1 0.51 B 1.39 Typ. Max. Min. Typ. Max. 0.020 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 D 8/12 Inches 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 F 7.1 0.280 I 5.1 0.201 MC33079 Package information Table 4. DIP14 package mechanical data L Z 4.2 3.3 1.27 0.130 2.54 0.050 0.100 SO-14 package information Figure 11. SO-14 package mechanical drawing Table 5. SO-14 package mechanical data Dimensions Ref. Millimeters Min. Typ. A a1 Inches Max. Min. Typ. 1.75 0.1 0.2 a2 Max. 0.068 0.003 0.007 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.019 c1 45° (typ.) D 8.55 8.75 0.336 0.344 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 7.62 0.300 F 3.8 4.0 0.149 0.157 9/12 Package information Table 5. SO-14 package mechanical data G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M S 10/12 MC33079 0.68 0.026 8° (max.) MC33079 5 Ordering information Ordering information Table 6. Order codes Order code Temperature range Package Packaging Marking DIP14 Tube MC33079N SO-14 Tube or Tape & reel 33079 SO-14 (Automotive grade) Tube or Tape & reel 33079Y MC33079N -40°C to +105°C MC33079D MC33079DT MC33079YD(1) MC33079YDT(1) -40°C to + 105°C 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. 6 Revision history Table 7. Document revision history Date Revision Changes 10-Oct-2001 1 Initial release. 23-Jun-2005 2 PPAP references inserted in the datasheet. See order codes table. 21-Nov-2007 3 Added Rthja, Rthjc and ESD values in Table 1: Absolute maximum ratings (AMR). Added footnote for automotive grade order codes in order codes table. Updated document format. 13-Mar-2008 4 Corrected value for ESD HBM parameter. Removed section on Macromodel. 11/12 MC33079 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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