Texas Instruments

OPA404BG

OPA404BG Description

The OPA404BG is a general-purpose operational amplifier (op-amp) from Texas Instruments, designed for a wide range of applications requiring high performance and reliability. This quad op-amp features a wide supply voltage range, from a minimum of 10 V to a maximum of 36 V, making it suitable for various power supply configurations. It offers a gain bandwidth product of 6.4 MHz, ensuring high-frequency performance and stability. The OPA404BG is housed in a through-hole package, specifically a tube format, which facilitates easy integration into existing designs.

OPA404BG Features

• Wide Supply Voltage Range: The OPA404BG operates within a supply voltage range of 10 V to 36 V, providing flexibility in power supply requirements.
• High Gain Bandwidth Product: With a gain bandwidth product of 6.4 MHz, this op-amp ensures high-frequency performance, making it suitable for applications requiring wide bandwidth.
• Low Input Bias Current: The input bias current is as low as 1 pA, which minimizes the impact of input currents on the circuit's performance, especially in high-impedance applications.
• High Slew Rate: A slew rate of 35 V/µs allows for fast response times and accurate signal reproduction, essential for high-speed applications.
• Low Input Offset Voltage: The input offset voltage is as low as 260 µV, ensuring high accuracy and precision in signal processing.
• Quad Configuration: The OPA404BG features four independent op-amp circuits in a single package, which is ideal for applications requiring multiple amplification stages.
• General-Purpose Amplifier Type: As a general-purpose op-amp, it is versatile and can be used in a variety of applications, from simple signal conditioning to complex multi-stage amplifiers.
• Compliance and Reliability: The OPA404BG is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and regulatory standards. It also has a moisture sensitivity level (MSL) that is not applicable, indicating it is not sensitive to moisture.

OPA404BG Applications

The OPA404BG is ideal for a variety of applications due to its wide supply voltage range, high gain bandwidth product, and low input bias current. Some specific use cases include:

• Signal Conditioning: The low input offset voltage and low input bias current make it suitable for precision signal conditioning in sensor interfaces and analog-to-digital converters.
• Audio Applications: The high slew rate and wide bandwidth ensure accurate reproduction of audio signals, making it suitable for high-fidelity audio amplifiers and preamplifiers.
• Industrial Control: The wide supply voltage range and robust performance make it suitable for industrial control systems where reliability and precision are critical.
• Medical Equipment: The low input bias current and high accuracy make it suitable for medical devices where signal integrity and precision are paramount.

Conclusion of OPA404BG

The OPA404BG from Texas Instruments is a versatile and high-performance quad op-amp that offers a wide range of features and benefits. Its wide supply voltage range, high gain bandwidth product, and low input bias current make it suitable for a variety of applications, from precision signal conditioning to high-fidelity audio. The quad configuration allows for multiple amplification stages in a single package, enhancing design flexibility. While the product is marked as "Not For New Designs," its existing applications and performance make it a reliable choice for existing systems. For designers seeking a general-purpose op-amp with high performance and reliability, the OPA404BG is an excellent option.