MC33078YDT - STMicroelectronics

March 2008 Rev 5 1/15

MC33078

Low noise dual operational amplifier

Features

■Low voltage noise: 4.5 nV/√Hz

■High gain bandwidth product: 15 MHz

■High slew rate: 7V/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

■Macromod el inc lud ed in this specification

Description

The MC33078 is a monolithic dual operational

amplifier particularly well suited for audio

applications.

It offers low voltage noise (4.5 nV/√Hz) and high

frequency pe rfor m an ce (15 MHz gain bandw idth

product, 7 V/µs slew rate).

In addition, the MC33078 has a very low

distortio n (0 .0 02 %) an d excellent phase/gain

margins.

The output stage allows a large output voltage

swing and symmetrical source and sink currents.

DIP8

(Plastic package)

SO-8

(Plastic micropackage)

Pin connections (top view)

Output 1

Inverting input 1

Non-inv ertin g input 1

Output 2

Invert ing input 2

Non-invert ing input 2

www.st.com

Absolute maximum ratings and operati ng conditions MC33078

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1 Absolute maximum ratings and operating conditions

Table 1. Absolute maximum ratings (AMR)

Symbol Parameter Value Unit

VCC Supply voltage ±18 or +36 V

Vid Differential input voltage - note (1)

1. Either or both input voltages must not exceed the magnitude of VCC+ or VCC-.

±30 V

ViInput voltage - see note 1 ±15 V

Output short circuit duration Infinite s

TjJunction temperature +150 °C

Tstg Storage temperature -65 to +150 °C

Rthja

Ther mal resistance junction to ambient(2) (3)

SO-8

DIP8

2. Short-circuits can cause excessive heating and destructive dissipation.

3. Rth are typical values.

125

85 °C/W

Rthjc

Ther mal resistance junction to case(2) (3)

SO-8

DIP8 40

41 °C/W

ESD

HBM: human body model(4)

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.

2kV

MM: machine model(5)

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.

200 V

CDM: charged device model(6)

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.

1.5 kV

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

MC33078 Schematic diagram

3/15

2 Schematic diagram

Figure 1. Schematic diagram (1/2 MC33078)

Inverting

Input Non-inverting

Input

VCC

Output

VCC

Electrical characteristics MC33078

4/15

3 Electrical characteristics

Table 3. VCC+ = +15V, VCC- = -15V, Tamb = 25°C (unless otherwise specified)

Symbol Parameter Min. Typ. Max. Unit

Vio Input offset voltage (Vo = 0V, Vic = 0V)

Tmin ≤ T

amb ≤ T

max

0.15 2

3mV

DVio Input offset voltage drift

Vo = 0V, Vic = 0V, Tmin ≤ T

amb ≤ T

max 2µV/°C

Iio Input offset current (Vo = 0V, Vic = 0V)

Tmin ≤ T

amb ≤Tmax

10 150

175 nA

Iib Input bias current (Vo = 0V, Vic = 0V)

Tmin ≤ T

amb ≤ T

max

250 750

800 nA

Vicm Input common mode voltage range (ΔVio = 5mV, Vo = 0V) ±13 ±14 V

Avd Large signal voltage gain (RL = 2kΩ, Vo = ±10V)

Tmin ≤ T

amb ≤ T

max

85 100 dB

±Vopp

Output voltage swing (Vid = ±1V)

RL = 600Ω

RL = 2.0kΩ

RL = 10kΩ

13.2

13.5

12.2

-12.7

-14.2

14.3

-14.6

-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

Output short-circuit current (Vid = ±1V, output to ground)

Source

Sink 15

20 29

37 mA

ICC Supply current (Vo = 0V, all amplifiers)

Tmin ≤ T

amb ≤ T

max

5.5 mA

SR Slew r ate

Vi = -10V to +10V, RL = 2kΩ, CL = 100pF, AV = +1 57 V/µs

GBP Gain bandwidth product

RL = 2kΩ, CL = 100pF, f = 100kHz 10 15 MHz

B Unity gain bandwidth (Open loop) 9 MHz

AmGain margin (RL = 2kΩ), CL = 0pF

CL = 100pF -11

-6 dB

φmPhase margin (RL = 2kΩ), CL = 0pF

CL = 100pF 55

30 Degrees

enEquivalent input noise voltage

RS = 100Ω, f = 1kHz 4.5 nV/√Hz

inEquivalent input noise current (f = 1kHz) 0.5 pA/√Hz

MC33078 Electrical characteristics

5/15

THD Total harmonic distortion

RL = 2kΩ, f = 20Hz to 20kHz, Vo = 3Vrms, AV = +1 0.002 %

VO1/VO2 Channel separation

f = 20Hz to 20kHz 120 dB

FPB Full power bandwidth

Vo = 27Vpp, RL = 2kΩ, THD ≤ 1% 120 kHz

ZoOutput impedance

Vo = 0V, f = 9MHz 37 Ω

RiInput resistance

Vic = 0V 175 kΩ

CiInput capacitance

Vic = 0V 12 pF

Table 3. VCC+ = +15V, VCC- = -15V, Tamb = 25°C (unless otherwise specified) (continued)

Symbol Parameter Min. Typ. Max. Unit

Electrical characteristics MC33078

6/15

Figure 2. Total supply current vs. supply

voltage Figure 3. Output volt age vs. supply voltage

0.5

1.5

2.5

3.5

4.5

0 5 10 15 20 25 30

Supply Voltage ( V)

Total Supply Current (mA)

-15

-10

-5

0 5 10 15

Supply Voltage ( V)

Output Voltage (V)

Figure 4. Equivalent input noise voltage vs.

frequency Figure 5. Output short circuit current vs.

output voltage

VCC = ±15V, G = 100

Rs = 100, Tamb = 25°C

-40

-30

-20

-10

0102030

Out put Voltage ( V)

Output Short Circuit Current (mA)

VCC = 0/30V

Tamb = 25°C

Figure 6. Output voltage vs. supply voltage Figure 7. THD + noise vs. frequency

-15

-10

-5

0 5 10 15

Supply Voltage ( V)

Output Voltage (V)

Vid = ±1V

RL = 2kΩ

0.001

0.01

0.1

0.01 0.1 1 10 100

Freq uenc y (kHz)

THD+Noise (%)

RL = 2kΩ, Vo = 3Vrms

VCC = ±15V, Av = 1

MC33078 Electrical characteristics

7/15

Figure 8. Voltage gain and phase vs.

frequency Figure 9. THD noise vs. Vout

-30

-20

-10

10 100 1000 10000 100000

Frequency (kHz)

Gain (dB)

-120

-60

120

180

Phase (Deg)

RL = 2kΩ, CL = 100pF

VCC = ±15V, G = -100

0.001

0.010

0.100

1.000

12345678910

Vout ( Vrm s)

THD+Noise (%)

RL = 2kΩ, f = 1kHz

VCC = ±15V, Av = 10

Macromodel MC33078

8/15

4 Macromodel

4.1 Impor t ant 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 em ulates the nominal perf ormance 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 deriv ed from macromodel s used outside of the specified conditions (V CC, temperature,

fo r 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 th e use of t his m acromod el.

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 Value Unit

Vio 0mV

AVD RL = 2kΩ, VO = ± 10V 100 dB

ICC No load, per operator 2 mA

Vicm ΔVio = 5mV, VO = 0V 28 V

Vopp RL = 2kΩ28.2 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

φmR

L = 2kΩ, CL = 0pF 55 Degrees

MC33078 Macromodel

9/15

4.3 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

Macromodel MC33078

10/15

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

MC33078 Package information

11/15

5 Package information

In order to meet environmental requirements, ST offers these de vices 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 ratin gs 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.

Package information MC33078

12/15

5.1 DIP8 package information

Figure 10. DIP8 package mech anical drawing

Table 5. DIP8 package mechanical data

Ref.

Dimensions

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A5.330.210

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 10.92 0.430

L 2.92 3.30 3.81 0.115 0.130 0.150

MC33078 Package information

13/15

5.2 SO-8 package information

Figure 11. SO-8 packa ge mechanical drawing

Table 6. SO-8 package mechanical data

Ref.

Dimensions

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A1.750.069

A1 0.10 0.25 0.004 0.010

A2 1.25 0.049

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 1.27 0.050

h 0.25 0.50 0.010 0.020

L 0.40 1.27 0.016 0.050

k1°8°1°8°

ccc 0.10 0.004

Ordering information MC33078

14/15

6 Ordering information

7 Revision history

Table 7. Order codes

Order code Temperature

range Package Packing Marking

MC33078N

-40, +105°C

DIP8 Tube MC33078N

MC33078D

MC33078DT SO-8 Tube or

Tape & reel 33078

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.

SO-8

(Automotive grade) Tube or

Tape & reel 33078Y

Table 8. Document revision history

Date Revision Changes

10-Nov-2001 1 Initial release.

10-Jun-2005 2 PPAP references inserted in the datasheet, see order codes ta ble.

30-Sep- 2005 3

The following changes were made in this revision:

– Order codes table updated with complete list of mark ings and

packages.

– Reorganization of Chapter 4.3: Macromodel code on page 9.

16-Feb-2006 4 Corrected error in the first page title.

3-Mar-2008 5

Added Rth and ESD values in absolute maximum ratings table.

Added footnote for automotive grade order codes in ord er codes

table.

Re-formatted document.

MC33078

15/15

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