Texas Instruments

MC1458D

MC1458D Description

The MC1458D is a general-purpose operational amplifier (op-amp) designed by Texas Instruments, featuring a dual-channel configuration. This IC is housed in a surface-mount package, specifically an 8SOIC, making it suitable for compact and efficient circuit designs. The MC1458D operates within a supply voltage range of 10 V to 30 V, providing flexibility for various power supply configurations. It offers a gain bandwidth product of 1 MHz, which is ideal for applications requiring moderate frequency response and signal processing capabilities. The slew rate of 0.5 V/µs ensures stable performance in dynamic signal environments.

MC1458D Features

• Dual-Channel Configuration: The MC1458D features two independent operational amplifier circuits, allowing for simultaneous processing of multiple signals in a single package. This dual-channel design reduces the need for multiple discrete op-amps, saving space and simplifying circuit design.
• Wide Supply Voltage Range: With a supply voltage span ranging from 10 V to 30 V, the MC1458D can be used in a variety of power supply environments, making it versatile for different applications.
• Low Input Bias Current: The low input bias current of 80 nA ensures minimal loading on the input signal source, preserving signal integrity and reducing distortion.
• High Output Current: Each channel can deliver up to 25 mA of output current, providing robust performance for driving various loads.
• Low Input Offset Voltage: The input offset voltage of 1 mV ensures accurate signal processing and minimal error in the output signal.
• Compliance and Reliability: The MC1458D is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. Additionally, it has a moisture sensitivity level (MSL) of 1, making it suitable for a wide range of manufacturing processes.
• Operating Temperature Range: The MC1458D operates within a temperature range of 0°C to 70°C, making it suitable for general-purpose applications in typical ambient conditions.

MC1458D Applications

The MC1458D is well-suited for a variety of applications where general-purpose signal processing and amplification are required. Some specific use cases include:

• Signal Conditioning: The MC1458D can be used to amplify and condition low-level signals from sensors, such as temperature sensors or strain gauges, before they are processed by analog-to-digital converters (ADCs).
• Audio Amplification: Its moderate gain bandwidth product and low input bias current make it suitable for audio signal amplification in consumer electronics, such as portable audio devices or small speaker systems.
• Filter Design: The dual-channel configuration allows for the implementation of complex filter designs, such as active filters for noise reduction or signal shaping.
• Transimpedance Amplifiers: The low input offset voltage and high output current capability make the MC1458D suitable for converting current signals from photodiodes or other sensors into voltage signals.
• General-Purpose Amplification: The MC1458D can be used in a wide range of general-purpose amplification tasks, such as buffering signals in analog circuits or driving small actuators.

Conclusion of MC1458D

The MC1458D is a versatile and reliable general-purpose operational amplifier designed for a variety of applications. Its dual-channel configuration, wide supply voltage range, and low input bias current make it an excellent choice for compact and efficient circuit designs. While the product is marked as obsolete, it remains a valuable component for applications requiring moderate performance and reliability. The MC1458D's compliance with environmental and safety standards ensures its suitability for modern manufacturing processes. Overall, the MC1458D offers a balance of performance and flexibility, making it a reliable choice for general-purpose signal processing and amplification tasks.