MC1458 is a high performance operational amplifier IC, used in audio signal processing, summing amplifiers. This IC performs similarly to the LM741 op amp IC. But in this IC two op amps are present inside of it. In this article I am sharing MC1458 Pinout, Characteristics, and Equivalent ICs.
MC1458 Pinout
The MC1458 comes in two common packages: 8-pin DIP and SOIC-8. Here’s the pin configuration for the IC is given below,
| Pin No. | Pin Name | Description |
| 1 | -IN A | Inverting Input of Op Amp A |
| 2 | +IN A | Non inverting Input A |
| 3 | OUT A | Output of Op Amp A |
| 4 | VEE | Negative Supply Voltage |
| 5 | +IN B | Non-inverting Input B |
| 6 | -IN B | Inverting Input of Op Amp B |
| 7 | OUT B | Output of Op Amp B |
| 8 | VCC | Positive Supply Voltage (3V to 18V DC) |
Features and Characteristics
| Feature | Specification |
| Number of Op Amps Inside of IC | 2 (dual) |
| Supply Voltage Range | ±3V to ±18V |
| Input Offset Voltage | 2 mV typical, 6 mV max |
| Input Bias Current | 80 nA typical, 500 – 700 nA max |
| Input Offset Current | 20 nA typical, 200 – 300 nA max |
| Common Mode Input Voltage Range | ±13V |
| Output Voltage Swing | ±13V (typical, with RL ≥ 2kΩ) |
| Large Signal Voltage Gain | 200 V/mV (typical) |
| Slew Rate | 0.5 V/μs |
| Bandwidth (Unity Gain) | ~1 MHz |
| Short Circuit Protection | Yes |
| Power Consumption | 70 – 240 mW |
| Temperature Range | 0°C to +70°C |
Additional Benefits
- No external frequency compensation required
- Low power consumption
- Latch up free design
Applications
- Used in audio signal amplifiers
- Active filters
- Integrators
- Voltage followers
- General purpose analog circuits
Equivalent and Replacement ICs
Several dual op amp ICs can be used as replacements or equivalents for the MC1458. The replacement is depending on the application and pinout configuration. So always check the electrical characteristics and pin out compatibility before substituting with other ICs.
| Equivalent IC | Notes |
| LM358 | Popular low-power dual op-amp (single supply capable) |
| UA1458 | Essentially the same dual op-amp as MC1458 |
| TL082 | Dual op-amp with JFET inputs and low bias current |
| RC4558 | Dual op-amp with higher gain-bandwidth product |
| NE5532 | High-performance dual op-amp (audio applications) |
Conclusion
The MC1458 op amp IC is the best choice for building pre amplifier circuits and signal processing circuits. The IC provides internal short circuit protection, dual voltage support and low power consumption. Use NE5532 as the perfect replacement IC with the MC1458.
