LM833
Dual Audio Operational Amplifier
General Description
The LM833 is a dual general purpose operational amplifier
designed with particular emphasis on performance in audio
systems.
This dual amplifier IC utilizes new circuit and processing
techniques to deliver low noise, high speed and wide band-
width without increasing external components or decreasing
stability. The LM833 is internally compensated for all closed
loop gains and is therefore optimized for all preamp and high
level stages in PCM and HiFi systems.
The LM833 is pin-for-pin compatible with industry standard
dual operational amplifiers.
Features
j Wide dynamic range: 140dB
j Low input noise
voltage: 4.5nV/√Hz
j High slew rate: 7 V/µs (typ); 5V/µs (min)
j High gain bandwidth: 15MHz (typ); 10MHz (min)
j Wide power bandwidth: 120KHz
j Low distortion: 0.002%
j Low offset voltage: 0.3mV
j Large phase margin: 60˚
j Available in 8 pin
MSOP package
Schematic Diagram (1/2 LM833)
Connection Diagram
DS005218-1
DS005218-2
Order Number LM833M, LM833MX, LM833N, LM833MM or LM833MMX
See NS Package Number
M08A, N08E or MUA08A
August 2000
LM
833
DualAudio
OperationalAm
plifier
© 2000 National Semiconductor Corporation DS005218 www.national.com
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage VCC–VEE 36V
Differential Input Voltage (Note 3) VI ±30V
Input Voltage Range (Note 3) VIC ±15V
Power Dissipation (Note 4) PD 500 mW
Operating Temperature Range TOPR −40 ∼ 85˚C
Storage Temperature Range TSTG −60 ∼ 150˚C
Soldering Information
Dual-In-Line Package
Soldering (10 seconds) 260˚C
Small Outline Package
(SOIC and MSOP)
Vapor Phase (60 seconds) 215˚C
Infrared (15 seconds) 220˚C
See AN-450 “Surface Mounting Methods and Their Effect
on Product Reliability” for other methods of soldering
surface mount devices.
ESD tolerance (Note 5) 1600V
DC Electrical Characteristics (Notes 1, 2)
(TA = 25˚C, VS = ±15V)
Symbol Parameter Conditions Min Typ Max Units
VOS Input Offset Voltage RS = 10Ω 0.3 5 mV
IOS Input Offset Current 10 200 nA
IB Input Bias Current 500 1000 nA
AV Voltage Gain RL = 2 kΩ, VO = ±10V 90 110 dB
VOM Output Voltage Swing RL = 10 kΩ ±12 ±13.5 V
RL = 2 kΩ ±10 ±13.4 V
VCM Input Common-Mode Range ±12 ±14.0 V
CMRR Common-Mode Rejection Ratio VIN = ±12V 80 100 dB
PSRR Power Supply Rejection Ratio VS = 15∼5V, −15∼−5V 80 100 dB
IQ Supply Current VO = 0V, Both Amps 5 8 mA
AC Electrical Characteristics
(TA = 25˚C, VS = ±15V, RL = 2 kΩ)
Symbol Parameter Conditions Min Typ Max Units
SR Slew Rate RL = 2 kΩ 5 7 V/µs
GBW Gain Bandwidth Product f = 100 kHz 10 15 MHz
Design Electrical Characteristics
(TA = 25˚C, VS = ±15V)
The following parameters are not tested or guaranteed.
Symbol Parameter Conditions Typ Units
∆VOS/∆T Average Temperature Coefficient 2 µV/˚C
of Input Offset Voltage
THD Distortion RL = 2 kΩ, f = 20∼20 kHz 0.002 %
VOUT = 3 Vrms, AV = 1
en Input Referred Noise Voltage RS = 100Ω, f = 1 kHz 4.5
in Input Referred Noise Current f = 1 kHz 0.7
PBW Power Bandwidth VO = 27 Vpp, RL = 2 kΩ, THD ≤ 1% 120 kHz
fU Unity Gain Frequency Open Loop 9 MHz
φM Phase Margin Open Loop 60 deg
Input Referred Cross Talk f = 20∼20 kHz −120 dB
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Design Electrical Characteristics (Continued)
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guar-
antee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is
given, however, the typical value is a good indication of device performance.
Note 2: All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 3: If supply voltage is less than ±15V, it is equal to supply voltage.
Note 4: This is the permissible value at TA ≤ 85˚C.
Note 5: Human body model, 1.5 kΩ in series with 100 pF.
Typical Performance Characteristics
Maximum Power
Dissipation
vs Ambient Temperature
DS005218-4
Input Bias Current vs
Ambient Temperature
DS005218-5
Input Bias Current vs
Supply Voltage
DS005218-6
Supply Current vs
Supply Voltage
DS005218-7
DC Voltage Gain
vs Ambient Temperature
DS005218-8
DC Voltage Gain
vs Supply Voltage
DS005218-9
Voltage Gain & Phase
vs Frequency
DS005218-10
Gain Bandwidth Product
vs Ambient Temperature
DS005218-11
Gain Bandwidth
vs Supply Voltage
DS005218-12
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833
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Typical Performance Characteristics (Continued)
Slew Rate vs
Ambient Temperature
DS005218-13
Slew Rate vs
Supply Voltage
DS005218-14
Power Bandwidth
DS005218-15
CMR vs Frequency
DS005218-19
Distortion vs Frequency
DS005218-20
PSRR vs Frequency
DS005218-18
Maximum
Output Voltage vs
Supply Voltage
DS005218-16
Maximum
Output Voltage vs
Ambient Temperature
DS005218-17
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Typical Performance Characteristics (Continued)
Application Hints
The LM833 is a high speed op amp with excellent phase
margin and stability. Capacitive loads up to 50 pF will cause
little change in the phase characteristics of the amplifiers
and are therefore allowable.
Capacitive loads greater than 50 pF must be isolated from
the output. The most straightforward way to do this is to put
a resistor in series with the output. This resistor will also pre-
vent excess power dissipation if the output is accidentally
shorted.
Spot Noise Voltage
vs Frequency
DS005218-21
Spot Noise Current
vs Frequency
DS005218-22
Input Referred Noise Voltage
vs Source Resistance
DS005218-23
Noninverting Amp
DS005218-24
Noninverting Amp
DS005218-25
Inverting Amp
DS005218-26
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833
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Noise Measurement Circuit
DS005218-27
Complete shielding is required to prevent induced pick up from external sources. Always check with oscilloscope for power line noise.
Total Gain: 115 dB @f = 1 kHz
Input Referred Noise Voltage: en = V0/560,000 (V)
RIAA Preamp Voltage Gain, RIAA
Deviation vs Frequency
DS005218-28
Flat Amp Voltage Gain vs
Frequency
DS005218-29
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Typical Applications
NAB Preamp
DS005218-30
AV = 34.5
F = 1 kHz
En = 0.38 µV
A Weighted
NAB Preamp Voltage Gain
vs Frequency
DS005218-31
Balanced to Single Ended Converter
DS005218-32
VO = V1–V2
Adder/Subtracter
DS005218-33
VO = V1 + V2 − V3 − V4
Sine Wave Oscillator
DS005218-34
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833
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Typical Applications (Continued)
Second Order High Pass Filter
(Butterworth)
DS005218-35
Illustration is f0 = 1 kHz
Second Order Low Pass Filter
(Butterworth)
DS005218-36
Illustration is f0 = 1 kHz
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Typical Applications (Continued)
State Variable Filter
DS005218-37
Illustration is f0 = 1 kHz, Q = 10, ABP = 1
AC/DC Converter
DS005218-38
2 Channel Panning Circuit (Pan Pot)
DS005218-39
Line Driver
DS005218-40
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833
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Typical Applications (Continued)
Tone Control
DS005218-41
Illustration is:
fL = 32 Hz, fLB = 320 Hz
fH =11 kHz, fHB = 1.1 kHz
DS005218-42
RIAA Preamp
DS005218-3
Av = 35 dB
En = 0.33 µV
S/N = 90 dB
f = 1 kHz
A Weighted
A Weighted, VIN = 10 mV
@f = 1 kHz
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Typical Applications (Continued)
Balanced Input Mic Amp
DS005218-43
Illustration is:
V0 = 101(V2 − V1)
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Typical Applications (Continued)
fo(Hz) C1 C2 R1 R2
32 0.12µF 4.7µF 75kΩ 500Ω
64 0.056µF 3.3µF 68kΩ 510Ω
125 0.033µF 1.5µF 62kΩ 510Ω
250 0.015µF 0.82µF 68kΩ 470Ω
500 8200pF 0.39µF 62kΩ 470Ω
1k 3900pF 0.22µF 68kΩ 470Ω
2k 2000pF 0.1µF 68kΩ 470Ω
4k 1100pF 0.056µF 62kΩ 470Ω
8k 510pF 0.022µF 68kΩ 510Ω
16k 330pF 0.012µF 51kΩ 510Ω
Note 6: At volume of change = ±12 dB
Q = 1.7
Reference: “AUDIO/RADIO HANDBOOK”, National Semiconductor, 1980, Page 2–61
10 Band Graphic Equalizer
DS005218-44
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Physical Dimensions inches (millimeters) unless otherwise noted
Molded Small Outline Package (M)
Order Number LM833M or LM833MX
NS Package Number M08A
Molded Dual-In-Line Package (N)
Order Number LM833N
NS Package Number N08E
LM
833
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
National Semiconductor
Corporation
Americas
Tel: 1-800-272-9959
Fax: 1-800-737-7018
Email: support@nsc.com
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Fax: 81-3-5639-7507
www.national.com
8-Lead (0.118” Wide) Molded Mini Small Outline Package
Order Number LM833MM or LM833MMX
NS Package Number MUA08A
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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
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