Texas Instruments LM833 Istruzioni operative e di manutenzione
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 tech-
niques to deliver low noise, high speed and wide bandwidth
without increasing external components or decreasing stabil-
ity. 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
■ Wide dynamic range: >140dB
■ Low input noise
voltage: 4.5nV/√Hz
■ High slew rate: 7 V/μs (typ); 5V/μs (min)
■ High gain bandwidth: 15MHz (typ); 10MHz (min)
■ Wide power bandwidth: 120KHz
■ Low distortion: 0.002%
■ Low offset voltage: 0.3mV
■ Large phase margin: 60°
■ Available in 8 pin MSOP
package
Schematic Diagram
(1/2 LM833)
521801
PRODUCTION DATA information is current as of
publication date. Products conform to specifications per
the terms of the Texas Instruments standard warranty.
Production processing does not necessarily include
testing of all parameters.
5218 SNOSBD8E Copyright © 1999-2012, Texas Instruments Incorporated
Connection Diagram
521802
Order Number LM833M, LM833MX, LM833AM, LM833AMX, LM833N, LM833MM or LM833MMX
See NS Package Number
M08A, N08E or MUA08A
LM833
2 Copyright © 1999-2012, Texas Instruments Incorporated
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the Texas Instruments 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) PD500 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
ESD tolerance (Note 5) 1600V
DC Electrical Characteristics (Note 1, Note 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
IBInput Bias Current 500 1000 nA
AVVoltage Gain RL= 2 kΩ, VO= ±10V 90 110 dB
VOM Output Voltage Swing RL= 10 kΩ±12 ±13.5 V
RL= 2 kΩ±12 ±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
IQSupply 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 kΩ5 7 V/μs
GBW Gain Bandwidth Product f = 100 kHz 10 15 MHz
VNI
Equivalent Input Noise Voltage
(LM833AM, LM833AMX)
RIAA, RS= 2.2 kΩ
(Note 6)1.4 μV
Design Electrical Characteristics
(TA= 25°C, VS= ±15V)
The following parameters are not tested or guaranteed.
Symbol Parameter Conditions Typ Units
ΔVOS/ΔTAverage 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
enInput Referred Noise Voltage RS = 100Ω, f = 1 kHz 4.5
LM833
Copyright © 1999-2012, Texas Instruments Incorporated 3
Symbol Parameter Conditions Typ Units
inInput Referred Noise Current f = 1 kHz 0.7
PBW Power Bandwidth VO= 27 Vpp, RL= 2 kΩ, THD ≤1% 120 kHz
fUUnity Gain Frequency Open Loop 9 MHz
φMPhase Margin Open Loop 60 deg
Input Referred Cross Talk f = 20∼20 kHz −120 dB
LM833
4 Copyright © 1999-2012, Texas Instruments Incorporated
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions
which guarantee 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 kΩin series with 100 pF.
Note 6: RIAA Noise Voltage Measurement Circuit
Typical Performance Characteristics
Maximum Power
Dissipation
vs Ambient Temperature
521804
Input Bias Current vs
Ambient Temperature
521805
Input Bias Current vs
Supply Voltage
521806
Supply Current vs
Supply Voltage
521807
LM833
Copyright © 1999-2012, Texas Instruments Incorporated 5
DC Voltage Gain
vs Ambient Temperature
521808
DC Voltage Gain
vs Supply Voltage
521809
Voltage Gain & Phase
vs Frequency
521810
Gain Bandwidth Product
vs Ambient Temperature
521811
Gain Bandwidth
vs Supply Voltage
521812
Slew Rate vs
Ambient Temperature
521813
LM833
6 Copyright © 1999-2012, Texas Instruments Incorporated
Slew Rate vs
Supply Voltage
521814
Power Bandwidth
521815
CMR vs Frequency
521819
Distortion vs Frequency
521820
PSRR vs Frequency
521818
Maximum
Output Voltage vs
Supply Voltage
521816
LM833
Copyright © 1999-2012, Texas Instruments Incorporated 7
Maximum
Output Voltage vs
Ambient Temperature
521817
Spot Noise Voltage
vs Frequency
521821
Spot Noise Current
vs Frequency
521822
Input Referred Noise Voltage
vs Source Resistance
521823
Noninverting Amp
521824
Noninverting Amp
521825
LM833
8 Copyright © 1999-2012, Texas Instruments Incorporated
Inverting Amp
521826
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 prevent excess power dissipation if the output is accidentally shorted.
Noise Measurement Circuit
521827
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)
LM833
Copyright © 1999-2012, Texas Instruments Incorporated 9
RIAA Noise Voltage Measurement Circuit
521855
LM833
10 Copyright © 1999-2012, Texas Instruments Incorporated
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