Overview
The MC34072ADG, part of the MC33071/72/74, MC34071/72/74, NCV33072/74A series, is a high-performance monolithic operational amplifier produced by onsemi. This series employs quality bipolar fabrication and innovative design concepts, making it suitable for a wide range of applications. The MC34072ADG is particularly noted for its single supply operation, with a voltage range of 3.0 V to 44 V, and its ability to operate from split supplies as well. The amplifier features a Darlington input stage, which provides high input resistance, low input offset voltage, and high gain. The all NPN output stage ensures no deadband crossover distortion and a large output voltage swing, making it ideal for high capacitance drive and fast settling times.
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 | 50 | nA |
| Input Common Mode Voltage Range (VICR) | VEE to (VCC - 1.8) | - | - | V |
| Gain Bandwidth Product (GBW) | 3.5 | 4.5 | - | MHz |
| Slew Rate (SR) | 8.0 | 13 | - | V/μs |
| Settling Time (ts) to 0.1% | - | 1.1 | - | μs |
| Output Voltage Swing (VO) | -14.7 | - | +14 | V |
| Phase Margin (fm) | - | 60 | - | ° |
| Gain Margin (Am) | - | 12 | - | dB |
Key Features
- Wide Bandwidth: 4.5 MHz gain bandwidth product.
- High Slew Rate: 13 V/μs, ensuring fast signal processing.
- Fast Settling Time: Settles to within 1/2 LSB of 8-bits in 1.0 μs and 12-bits in 2.2 μs for a 10 V step.
- Wide Single Supply Operation: Operates from 3.0 V to 44 V, and includes ground potential in the common mode input voltage range.
- Low Input Offset Voltage: Maximum of 3.0 mV (A Suffix).
- Large Output Voltage Swing: Up to ±14 V with ±15 V supplies.
- High Capacitance Drive Capability: Drives capacitive loads from 0 pF to 10,000 pF.
- Low Total Harmonic Distortion: 0.02% at specified conditions.
- Output Short Circuit Protection: Protects the output from short circuit conditions.
- ESD Protection: ESD diodes/clamps provide input protection).
Applications
The MC34072ADG is versatile and can be used in various applications, including:
- Fast Settling D-to-A Converters: Ideal for fast settling current to voltage conversion applications due to its low input capacitance and fast settling times.
- Audio and Video Circuits: Suitable for audio and video signal processing due to its low total harmonic distortion and high slew rate).
- Industrial Control Systems: Used in industrial control systems requiring high gain, low offset voltage, and high capacitance drive capability).
- Automotive Systems: The NCV prefix versions are suitable for automotive and other applications requiring unique site and control change requirements).
Q & A
- What is the gain bandwidth product of the MC34072ADG?
The gain bandwidth product is 4.5 MHz.
- What is the slew rate of the MC34072ADG?
The slew rate is 13 V/μs.
- What is the input offset voltage of the MC34072ADG?
The maximum input offset voltage is 3.0 mV (A Suffix)).
- What is the output voltage swing of the MC34072ADG?
The output voltage swing is up to ±14 V with ±15 V supplies).
- Can the MC34072ADG operate from a single supply?
Yes, it can operate from a single supply of 3.0 V to 44 V).
- What is the phase margin of the MC34072ADG?
The phase margin is 60°).
- Does the MC34072ADG have ESD protection?
Yes, it has ESD diodes/clamps for input protection).
- What is the settling time of the MC34072ADG for a 10 V step?
It settles to within 1/2 LSB of 8-bits in 1.0 μs and 12-bits in 2.2 μs).
- Can the MC34072ADG drive high capacitance loads?
Yes, it can drive capacitive loads from 0 pF to 10,000 pF).
- What are some typical applications of the MC34072ADG?
It is used in fast settling D-to-A converters, audio and video circuits, industrial control systems, and automotive systems).
