Overview
The MC34072AD is a high-performance operational amplifier produced by onsemi. It is part of the MC34071/72/74 series, known for its wide bandwidth, high slew rate, and fast settling time, making it suitable for a variety of applications. This operational amplifier is particularly suited for single supply operation and offers a wide input common mode voltage range that includes ground potential. The device features a Darlington input stage and an all NPN output stage, providing high input resistance, low input offset voltage, and high gain.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VIO) | - | 0.5 | 3.0 | mV |
| Input Bias Current (IIB) | - | 100 | 500 | nA |
| Input Offset Current (IIO) | - | 6.0 | 300 | nA |
| Input Common Mode Voltage Range (VICR) | VEE to (VCC - 1.8) | - | - | V |
| Large Signal Voltage Gain (AVOL) | 50 | 100 | - | V/mV |
| Output Voltage Swing (VOH/VOL) | 3.7 / -14.7 | 13.6 / -14.3 | - | V |
| Slew Rate (SR) | 8.0 | 13 | - | V/μs |
| Gain Bandwidth Product (GBW) | 3.5 | 4.5 | - | MHz |
| Phase Margin (fm) | 60 | - | - | ° |
| Gain Margin (Am) | 12 | - | - | dB |
| Total Harmonic Distortion (THD) | 0.02 | - | - | % |
Key Features
- Wide Bandwidth: 4.5 MHz gain bandwidth product.
- High Slew Rate: 13 V/μs symmetrical slew rate.
- Fast Settling Time: 1.1 μs to 0.1% for a 10 V step.
- Wide Single Supply Operation: 3.0 V to 44 V.
- Wide Input Common Mode Voltage Range: Includes ground potential (VEE).
- Low Input Offset Voltage: 3.0 mV maximum (A Suffix).
- Large Output Voltage Swing: −14.7 V to +14 V with ±15 V supplies.
- Large Capacitance Drive Capability: 0 pF to 10,000 pF.
- Low Total Harmonic Distortion: 0.02%.
- Excellent Phase and Gain Margins: 60° phase margin and 12 dB gain margin.
- Output Short Circuit Protection: Protected against short circuits.
- ESD Protection: ESD diodes/clamps provide input protection.
Applications
The MC34072AD is versatile and can be used in various applications, including:
- Fast Settling D-to-A Current to Voltage Conversion: Ideal for applications requiring quick settling times, such as in digital-to-analog converters.
- Audio and Video Circuits: Suitable for audio and video amplification due to its low total harmonic distortion and high slew rate.
- Industrial and Automotive Systems: The NCV prefix versions are AEC-Q100 qualified, making them suitable for automotive and other demanding applications.
- Medical Devices: Can be used in medical equipment where high precision and reliability are required.
- General Purpose Amplification: Applicable in a wide range of general-purpose amplification tasks due to its robust specifications.
Q & A
- What is the gain bandwidth product of the MC34072AD?
The gain bandwidth product of the MC34072AD is 4.5 MHz.
- What is the slew rate of the MC34072AD?
The slew rate of the MC34072AD is 13 V/μs.
- What is the input offset voltage of the MC34072AD?
The input offset voltage of the MC34072AD is 3.0 mV maximum (A Suffix).
- What is the output voltage swing of the MC34072AD?
The output voltage swing of the MC34072AD is −14.7 V to +14 V with ±15 V supplies.
- Does the MC34072AD have ESD protection?
Yes, the MC34072AD has ESD diodes/clamps that provide input protection.
- What is the phase margin of the MC34072AD?
The phase margin of the MC34072AD is 60°.
- What is the gain margin of the MC34072AD?
The gain margin of the MC34072AD is 12 dB.
- Can the MC34072AD operate from a single supply?
Yes, the MC34072AD can operate from a single supply ranging from 3.0 V to 44 V.
- What is the total harmonic distortion of the MC34072AD?
The total harmonic distortion of the MC34072AD is 0.02%.
- Is the MC34072AD suitable for automotive applications?
Yes, the NCV prefix versions of the MC34072AD are AEC-Q100 qualified, making them suitable for automotive applications.
