SLOS481B July   2010  – October 2014 LM833


  1. Features
  2. Applications
  3. Description
  4. Typical Design Example Audio Pre-Amplifier
  5. Revision History
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Handling Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Operating Characteristics
    7. 7.7 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Operating Voltage
      2. 8.3.2 High Gain Bandwidth Product
      3. 8.3.3 Low Total Harmonic Distortion
    4. 8.4 Device Functional Modes
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. Introduction to Design Method
        2. RIAA Phono Preamplifier Design Procedure
      3. 9.2.3 Application Curves for Output Characteristics
    3. 9.3 Typical Application — Reducing Oscillation from High-Capacitive Loads
      1. 9.3.1 Test Schematic
      2. 9.3.2 Output Characteristics
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8 Detailed Description

8.1 Overview

The LM833 device is a dual operational amplifier with high-performance specifications for use in quality audio and data-signal applications. This device operates over a wide range of single- and dual-supply voltage with low noise, high-gain bandwidth, and high slew rate. Additional features include low total harmonic distortion, excellent phase and gain margins, large output voltage swing with no deadband crossover distortions, and symmetrical sink/source performance. The dual amplifiers are utilized widely in circuit of audio optimized for all preamp and high-level stages in PCM and HiFi systems. The LM833 device is pin-for-pin compatible with industry-standard dual operation amplifiers' pin assignments. With addition of a preamplifier, the gain of the power stage can be greatly reduced to improve performance.

8.2 Functional Block Diagram


8.3 Feature Description

8.3.1 Operating Voltage

The LM833 operational amplifier is fully specified and ensured for operation from ±5 V to ±18 V. In addition, many specifications apply from –40°C to 85°C. Parameters that vary significantly with operating voltages or temperature are shown in Absolute Maximum Ratings.

8.3.2 High Gain Bandwidth Product

Gain bandwidth product is found by multiplying the measured bandwidth of an amplifier by the gain at which that bandwidth was measured. The LM833 has a high gain bandwidth of 16 MHz which stays relatively stable over a wide range of supply voltages. Parameters that vary significantly with temperature are shown in Figure 14.

8.3.3 Low Total Harmonic Distortion

Harmonic distortions to an audio signal are created by electronic components in a circuit. Total harmonic distortion (THD) is a measure of harmonic distortions accumulated by a signal in an audio system. The LM833 has a very low THD of 0.002% meaning that the LM833 will add little harmonic distortion when used in audio signal applications. More specific characteristics are shown in Figure 22.

8.4 Device Functional Modes

The LM833 is powered on when the supply is connected. It can be operated as a single supply operational amplifier or dual supply amplifier depending on the application.