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.

Connection Diagram

521802

Order Number LM833M, LM833MX, LM833AM, LM833AMX, LM833N, LM833MM or LM833MMX

See NS Package Number

M08A, N08E or MUA08A

LM833

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

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

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

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

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

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

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

RIAA Noise Voltage Measurement Circuit

521855

LM833

Indice

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