MC3403 Quad Low-Power Operational Amplifier IC DIP-14
The MC3403 is a monolithic integrated circuit that incorporates four independent, general-purpose operational amplifiers on a single silicon chip. It is engineered as a cost-effective solution for systems requiring multiple amplification stages, consolidating functionality to save board space and reduce component count. Its design emphasizes versatility and reliability for a broad range of analog circuit tasks, from basic amplification to signal conditioning and active filtering, making it a staple in both educational and industrial electronic design.
A primary design achievement of the MC3403 is its ability to operate seamlessly from a single-ended power supply, as low as 3.0 volts, or from traditional split (positive and negative) supplies. This flexibility is enabled by an input stage whose common-mode voltage range extends to the negative supply rail (ground in single-supply configurations). Consequently, the output can also swing close to the ground potential, eliminating the need for external biasing networks and simplifying circuit design in battery-powered or ground-referenced systems.
Internally, each amplifier is fully compensated for stable unity-gain operation, simplifying implementation without external capacitors. The output stage utilizes a Class AB configuration, which minimizes the crossover distortion typical of many early single-supply op-amps. Furthermore, the device includes integrated protection features such as output short-circuit protection and ESD diodes, enhancing its durability in real-world applications where faults or handling incidents may occur.
Features:
- Short Circuit Protected Outputs.
- Class AB Output Stage for Minimal Crossover Distortion.
- True Differential Input Stage.
- Single Supply Operation: 3.0 V to 36 V.
- Split Supply Operation: ±1.5 V to ±18 V.
- Low Input Bias Currents.
- Four Amplifiers Per Package.
- Internally Compensated.
- Industry Standard Pinouts.
- ESD Diodes Added for Increased Ruggedness.
Specifications:
| Characteristic | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage Range (Single): | VCC | – | 3.0 | – | 36 | V |
| Supply Voltage Range (Split): | VCC, VEE | – | ±1.5 | – | ±18 | V |
| Input Offset Voltage: | VIO | TA=25°C | – | 2.0 | 10 | mV |
| Input Bias Current: | IIB | TA=25°C | – | -200 | -500 | nA |
| Large Signal Voltage Gain: | AVOL | VO=±10V, RL=2.0kΩ | 20 | 200 | – | V/mV |
| Common Mode Rejection Ratio: | CMR | – | 70 | 90 | – | dB |
| Supply Current (all 4 amps): | ICC, IEE | VO=0, RL=∞ | – | 2.8 | 7.0 | mA |
| Output Voltage Swing: | VO | RL=10kΩ, VCC=±15V | ±12 | ±13.5 | – | V |
| Slew Rate: | SR | AV=1 | – | 0.6 | – | V/µs |
| Gain Bandwidth Product: | BW | AV=1 | – | 1.0 | – | MHz |
Applications:
- Voltage Reference Circuits.
- High Impedance Differential Amplifiers.
- Comparators with Hysteresis.
- Bi-Quad Active Filters.
- Multiple Feedback Bandpass Filters.
- Function / Waveform Generators.
- Transducer Amplifiers.
- DC Gain Blocks.
Package Contents:
- 1x MC3403 Quad Low-Power Operational Amplifier IC DIP-14
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