Overview
The MC1458DRG4 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 device is designed for a wide range of applications due to its high common-mode input voltage range, absence of latch-up, and internal frequency compensation, ensuring stability without external components.
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) | V = 0, 25°C | 1 | 6 | 7.5 | mV |
| Input Offset Current (IIO) | V = 0, 25°C | 20 | 200 | 300 | nA |
| Input Bias Current (IIB) | V = 0, 25°C | 80 | 500 | nA | |
| Unity-Gain Bandwidth (B1) | 25°C | 1 | MHz | ||
| Phase Margin (φm) | AVD = 1, 25°C | 65 | deg | ||
| Gain Margin | 25°C | 11 | dB | ||
| Input Resistance (ri) | 25°C | 0.3 | 2 | MΩ | |
| Output Resistance (ro) | VO = 0, 25°C | 75 | Ω | ||
| Common-Mode Rejection Ratio (CMRR) | VIC = VICR min, 25°C | 70 | 90 | dB | |
| Short-Circuit Output Current (IOS) | 25°C | ±25 | ±40 | mA | |
| Supply Current (ICC) | No load, 25°C | 3.4 | 6.6 | mA |
Key Features
- Short-Circuit Protection: The MC1458DRG4 is protected against short circuits, allowing the output to be shorted to ground or either power supply without damage.
- Wide Common-Mode and Differential Voltage Ranges: The device can handle a wide range of input voltages, making it versatile for various applications.
- No Frequency Compensation Required: Internal frequency compensation ensures stability without the need for external components.
- Low Power Consumption: The amplifier has a relatively low supply current, making it energy-efficient.
- No Latch-Up: The absence of latch-up ensures reliable operation in voltage-follower applications.
- High Common-Mode Input Voltage Range: Suitable for applications requiring high common-mode input voltage handling.
Applications
- General-Purpose Amplification: Suitable for a wide range of general-purpose amplification tasks due to its versatility and stability.
- Voltage Followers: Ideal for voltage-follower applications due to its high common-mode input voltage range and absence of latch-up.
- Audio and Instrumentation Circuits: Can be used in audio and instrumentation circuits where low noise and high stability are required.
- Industrial Control Systems: Applicable in industrial control systems where reliability and stability are crucial.
Q & A
- What is the operating temperature range of the MC1458DRG4?
The operating free-air temperature range for the MC1458DRG4 is 0°C to 70°C.
- What is the supply voltage range for the MC1458DRG4?
The supply voltage range is ±5 V to ±15 V.
- Does the MC1458DRG4 require external frequency compensation?
No, the MC1458DRG4 does not require external frequency compensation as it has internal frequency compensation.
- What is the input offset voltage of the MC1458DRG4?
The input offset voltage is typically 6 mV at 25°C.
- Is the MC1458DRG4 protected against short circuits?
- What is the unity-gain bandwidth of the MC1458DRG4?
- What is the phase margin of the MC1458DRG4?
- What is the common-mode rejection ratio (CMRR) of the MC1458DRG4?
- What is the short-circuit output current of the MC1458DRG4?
- What is the typical supply current of the MC1458DRG4?
