Overview
The LM833-N/NOPB is a dual high-speed audio operational amplifier produced by Texas Instruments. This device is designed with particular emphasis on performance in audio systems, offering low noise, high speed, and wide bandwidth. The LM833-N is internally compensated for all closed-loop gains, making it optimized for preamp and high-level stages in PCM and HiFi systems. It is pin-for-pin compatible with industry-standard dual operational amplifiers, ensuring ease of integration into existing designs.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage (VCC–VEE) | 36 | V | |||
| Differential Input Voltage (VI) | ±30 | V | |||
| Input Voltage Range (VIC) | ±15 | V | |||
| Power Dissipation (PD) | TA ≤ 85°C | 500 | mW | ||
| Operating Temperature Range (TOPR) | -40 | 85 | °C | ||
| Storage Temperature Range (TSTG) | -60 | 150 | °C | ||
| Input Offset Voltage (VOS) | RS = 10Ω | 0.3 | 5 | mV | |
| Input Offset Current (IOS) | 10 | 200 | nA | ||
| Input Bias Current (IB) | 500 | 1000 | nA | ||
| Voltage Gain (AV) | RL = 2 kΩ, VO = ±10V | 90 | 110 | dB | |
| Slew Rate (SR) | RL = 2 kΩ | 5 | 7 | V/μs | |
| Gain Bandwidth Product (GBW) | f = 100 kHz | 10 | 15 | MHz | |
| Input Referred Noise Voltage (en) | RS = 100Ω, f = 1 kHz | 4.5 | nV / √Hz | ||
| Power Bandwidth (PBW) | VO = 27 Vpp, RL = 2 kΩ, THD ≤1% | 120 | kHz | ||
| Phase Margin (φM) | Open Loop | 60 | deg |
Key Features
- Low Input Noise Voltage: 4.5 nV/√Hz, making it suitable for high-quality audio applications.
- High Slew Rate: 7 V/μs (typical), ensuring fast response times.
- High Gain Bandwidth Product: 15 MHz (typical), providing a wide range of frequencies for signal processing.
- Wide Dynamic Range: Greater than 140 dB, allowing for a broad range of signal levels.
- Low Distortion: 0.002%, ensuring high fidelity in audio signals.
- Low Offset Voltage: 0.3 mV, minimizing DC offset errors.
- Large Phase Margin: 60°, ensuring stability in feedback configurations.
- Available in Multiple Packages: Including PDIP, SOIC, and VSSOP, offering flexibility in design.
Applications
- HiFi Audio System Equipment: Ideal for preamplification and high-level stages in audio systems.
- Preamplification and Filtering: Suitable for microphone preamplifiers and various filtering applications.
- Set-Top Box: Used in audio processing stages of set-top boxes.
- General-Purpose Amplifier Applications: Can be used in a variety of general-purpose amplifier circuits.
- RIAA Preamps: Suitable for RIAA equalization in phonograph preamplifiers.
- Audio Processing Circuits: Including balanced to single-ended converters, adder/subtracter circuits, and tone controls.
Q & A
- What is the typical slew rate of the LM833-N?
The typical slew rate of the LM833-N is 7 V/μs.
- What is the input referred noise voltage of the LM833-N?
The input referred noise voltage of the LM833-N is 4.5 nV/√Hz at 1 kHz.
- What is the gain bandwidth product of the LM833-N?
The gain bandwidth product of the LM833-N is 15 MHz (typical).
- What are the operating temperature ranges for the LM833-N?
The operating temperature range for the LM833-N is from -40°C to 85°C.
- Is the LM833-N pin-for-pin compatible with other dual operational amplifiers?
Yes, the LM833-N is pin-for-pin compatible with industry-standard dual operational amplifiers.
- What are the typical applications of the LM833-N?
The LM833-N is typically used in HiFi audio systems, preamplification, filtering, set-top boxes, and general-purpose amplifier applications.
- What is the maximum power dissipation of the LM833-N?
The maximum power dissipation of the LM833-N is 500 mW at TA ≤ 85°C.
- How does the LM833-N handle capacitive loads?
The LM833-N can handle capacitive loads up to 50 pF without significant phase changes. For loads greater than 50 pF, a series resistor is recommended.
- What is the phase margin of the LM833-N?
The phase margin of the LM833-N is 60° in open-loop configuration.
- What are the available packages for the LM833-N?
The LM833-N is available in PDIP, SOIC, and VSSOP packages.
