Texas Instruments

OPA743UA  

OP Amps, Buffer Amps ICs

OPA743UA Description

The OPA743UA is a high-performance general-purpose operational amplifier (op-amp) from Texas Instruments, designed for a wide range of applications requiring precision and reliability. This op-amp features a wide supply voltage range, from 3.5 V to 12 V, making it suitable for various power supply configurations. Its gain bandwidth product of 7 MHz ensures high-frequency performance, while the slew rate of 10 V/µs allows for fast transient response. The OPA743UA is housed in an 8-SOIC package, which is ideal for surface-mount applications, providing compact and robust physical characteristics.

OPA743UA Features

• Wide Supply Voltage Range: The OPA743UA operates within a supply voltage range of 3.5 V to 12 V, offering flexibility in power supply design.
• High Gain Bandwidth Product: With a gain bandwidth product of 7 MHz, this op-amp can handle high-frequency signals effectively, 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 loading effect on the input signal source, ensuring high input impedance.
• High Slew Rate: A slew rate of 10 V/µs ensures fast response to input signal changes, making the OPA743UA ideal for applications requiring rapid signal processing.
• Low Input Offset Voltage: The input offset voltage is only 1.5 mV, which helps in maintaining high accuracy in signal amplification.
• Compliance and Reliability: The OPA743UA is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory compliance. It also has a moisture sensitivity level (MSL) of 2 (1 Year), making it suitable for various manufacturing environments.
• High Output Current: The op-amp can deliver up to 20 mA per channel, providing sufficient drive capability for various loads.

OPA743UA Applications

The OPA743UA is versatile and can be used in a variety of applications, including:

• Signal Conditioning: Ideal for amplifying and conditioning signals in sensor interfaces, where precision and low noise are crucial.
• Audio Applications: Suitable for audio preamplifiers and active filters due to its low input bias current and high slew rate, ensuring high-fidelity audio signal processing.
• Industrial Control Systems: Can be used in feedback loops and control systems where high accuracy and reliability are required.
• Medical Equipment: Due to its low input offset voltage and high input impedance, it is suitable for medical instrumentation where precision and signal integrity are paramount.
• General-Purpose Amplification: The OPA743UA can be used in a wide range of general-purpose amplification tasks, from simple gain stages to complex signal processing circuits.

Conclusion of OPA743UA

The OPA743UA from Texas Instruments stands out as a high-performance general-purpose op-amp, offering a combination of wide supply voltage range, high gain bandwidth product, and low input bias current. Its robust design, compliance with environmental standards, and high output current make it a reliable choice for a variety of applications. Whether used in signal conditioning, audio processing, or industrial control systems, the OPA743UA delivers precision and reliability, making it an excellent choice for engineers and designers in the electronics industry.

OPA743UA Documents

Download datasheets and manufacturer documentation for OPA743UA

Datasheets :

OPA743,2743,4743 Datasheet      

HTML Datasheet :

OPA743,2743,4743 Datasheet      

PCN Design/Specification :

Design 25/Feb/2022