MC33272ADR2G

Product Overview

• Category: Integrated Circuit (IC)
• Use: Operational Amplifier
• Characteristics: Low Noise, Low Distortion, High Slew Rate
• Package: SOIC-8
• Essence: The MC33272ADR2G is a dual operational amplifier designed for precision applications.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: ±2.5V to ±18V
• Input Offset Voltage: 1.5mV (maximum)
• Input Bias Current: 100nA (maximum)
• Gain Bandwidth Product: 10MHz (typical)
• Slew Rate: 3.5V/µs (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MC33272ADR2G has a standard pin configuration for an SOIC-8 package:

__ __ -| 1 8 |- -| 2 7 |- -| 3 6 |- -| 4 5 |- ¯¯ ¯¯

Pin Description: 1. Non-Inverting Input (Op-Amp A) 2. Inverting Input (Op-Amp A) 3. Negative Power Supply (V-) 4. Output (Op-Amp A) 5. Positive Power Supply (V+) 6. Output (Op-Amp B) 7. Negative Power Supply (V-) 8. Inverting Input (Op-Amp B) 9. Non-Inverting Input (Op-Amp B)

Functional Features

• Low noise and distortion: The MC33272ADR2G offers low input noise and low harmonic distortion, making it suitable for high-fidelity audio applications.
• High slew rate: With a high slew rate of 3.5V/µs, this operational amplifier can handle fast input signal transitions accurately.
• Wide supply voltage range: The device operates from ±2.5V to ±18V, providing flexibility in various power supply configurations.
• Rail-to-rail output swing: The output stage of the MC33272ADR2G allows the signal to swing close to both supply rails, maximizing dynamic range.

Advantages and Disadvantages

Advantages: - Low noise and distortion for high-quality audio applications - High slew rate enables accurate handling of fast input signals - Wide supply voltage range offers flexibility in power supply configurations - Rail-to-rail output swing maximizes dynamic range

Disadvantages: - Limited bandwidth compared to some other operational amplifiers - Higher power consumption compared to low-power op-amps

Working Principles

The MC33272ADR2G is based on a bipolar junction transistor (BJT) input stage followed by a MOSFET output stage. The BJT input stage provides low input offset voltage and low input bias current, ensuring accurate signal amplification. The MOSFET output stage allows the output signal to swing close to both supply rails, minimizing distortion.

Detailed Application Field Plans

The MC33272ADR2G is commonly used in the following applications:

1. Audio Amplification: Due to its low noise and distortion characteristics, the MC33272ADR2G is widely used in audio amplifiers, preamplifiers, and headphone amplifiers.
2. Active Filters: The high slew rate and wide supply voltage range make this operational amplifier suitable for active filter designs, such as low-pass, high-pass, and band-pass filters.
3. Instrumentation Amplifiers: The MC33272ADR2G can be used in precision instrumentation amplifiers, providing accurate signal amplification in measurement and control systems.
4. Signal Conditioning: With its low noise and high slew rate, this operational amplifier is suitable for signal conditioning applications, such as sensor amplification and signal filtering.

Detailed and Complete Alternative Models

1. LM358: Dual operational amplifier with similar characteristics, available in various packages.
2. TL072: Low-noise JFET-input operational amplifier with wide supply voltage range.
3. AD822: Precision instrumentation amplifier with low input offset voltage and low noise.

These alternative models offer similar functionality to the MC33272ADR2G and can be considered based on specific application requirements.

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