Overview
The MC1458PG4 is a dual general-purpose operational amplifier produced by Texas Instruments. It is part of the MC1458 series, which is electrically similar to the μA741, but without the offset null capability. This high-performance, monolithic operational amplifier is designed for a wide range of analog applications, offering superior performance in integrators, summing amplifiers, and general feedback applications.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC±) | ±5 | ±15 | V | ||
| Operating Free-Air Temperature Range | 0 | 70 | °C | ||
| Input Offset Voltage (VIO) | At 25°C | 1 | 5 | 6 | mV |
| Input Offset Current (IIO) | At 25°C | 20 | 200 | 300 | nA |
| Input Bias Current (IIB) | At 25°C | 80 | 500 | 800 | nA |
| Rise Time (tr) | VI = 20 mV, RL = 2 kΩ | 0.3 | μs | ||
| Slew Rate (SR) | VI = 10 V, RL = 2 kΩ | 0.5 | V/μs | ||
| Unity Gain Bandwidth | VI = 10 mV, RL = 2 kΩ, CL = 100 pF | 1 | MHz |
Key Features
- Low Power Consumption: The MC1458 is designed to operate with low power consumption, making it suitable for a variety of applications.
- Large Input Voltage Range: The device can handle a wide range of input voltages, up to ±15 V.
- No Latch-Up: The MC1458 does not latch up, ensuring stable operation.
- High Gain: It offers high gain, which is beneficial for applications requiring significant signal amplification.
- Short-Circuit Protection: The output is protected against short circuits, allowing it to be shorted to ground or either power supply without damage.
- No Frequency Compensation Required: Internal frequency compensation ensures stability without the need for external components.
Applications
- Summing Amplifier: The MC1458 can be used in summing amplifier configurations to combine multiple input signals.
- Voltage Follower: Its high input impedance and low output impedance make it ideal for voltage follower applications.
- Integrator: It is suitable for use in integrator circuits due to its high gain and stability.
- Active Filtering: The MC1458 can be used in active filter designs to enhance signal processing capabilities.
- Function Generator: It can be part of function generator circuits to produce various waveforms.
Q & A
- What is the MC1458PG4?
The MC1458PG4 is a dual general-purpose operational amplifier produced by Texas Instruments.
- What are the key features of the MC1458PG4?
Key features include low power consumption, large input voltage range, no latch-up, high gain, short-circuit protection, and no requirement for frequency compensation.
- What is the operating temperature range of the MC1458PG4?
The operating free-air temperature range is 0°C to 70°C for the MC1458.
- What is the input offset voltage of the MC1458PG4?
The input offset voltage is typically 5 mV at 25°C.
- Does the MC1458PG4 require external frequency compensation?
No, the MC1458PG4 does not require external frequency compensation due to its internal frequency compensation.
- What are some common applications of the MC1458PG4?
Common applications include summing amplifiers, voltage followers, integrators, active filters, and function generators.
- Is the MC1458PG4 protected against short circuits?
Yes, the MC1458PG4 has short-circuit protection, allowing the output to be shorted to ground or either power supply without damage.
- What is the unity gain bandwidth of the MC1458PG4?
The unity gain bandwidth is 1 MHz.
- Can the MC1458PG4 be used in high-gain applications?
Yes, the MC1458PG4 offers high gain, making it suitable for applications requiring significant signal amplification.
- Is the MC1458PG4 still in production?
No, the MC1458PG4 is listed as obsolete and is no longer manufactured.
