OPA2350EA/2K5G4

OPA2350EA/2K5G4 Application Field and Working Principle

The OPA2350EA/2K5G4 from Texas Instruments is a low noise amplifier that combines precision, flexibility, and speed in a fast settling time and high bandwidth amplifier. It is suitable for a wide range of applications, including instrumentation, medical imaging, process control and low noise gain stages. The OPA2350EA/2K5G4 provides clean amplification of signals and can be used in systems where low noise and wide dynamic range are critical.

Application Fields

The OPA2350EA/2K5G4 offers several advantages over similar devices and is therefore suitable for many applications.

• Medical Imaging – The OPA2350EA/2K5G4 amplifier can be used in medical imaging devices such as ultrasound, echocardiography, and radiology, due to its fast settling speed and high bandwidth.
• Instrumentation – The OPA2350EA/2K5G4 can be used in industrial and laboratory instrumentation applications where wide dynamic range, low noise, and fast settling time are required.
• Audio – The OPA2350EA/2K5G4 is suitable for audio applications where high sound quality is desired. It can be used for PA systems, mixing consoles, and recording equipment.
• Process Control – The OPA2350EA/2K5G4 is suitable for process control applications. The device is able to amplify low-level signals accurately and can be used in sensor measurement applications.

Working Principle

The OPA2350EA/2K5G4 is a precision, high speed, low noise, and wide dynamic range amplifier that uses an integrated Voltage-to-Frequency (V/F) converter and a current mode structure. The amplifier is able to accurately amplify signals and provide a reliable output across its wide Gain Bandwidth Product (GBW) range of 6 MHz to 10 MHz. The OPA2350EA/2K5G4 has a maximum gain of 90dB, a unity gain stability of ±0.05%, and a 120dB Common Mode Rejection (CMRR).

The V/F converter is used to convert the input voltage to a frequency, which is then used to modulate the current output of the amplifier. This current is circulated through the amplifier’s feedback path and provides the gain. The feedback signal is then used to adjust the amplifier\'s gain resulting in a high linearity across its operational range. Since the current mode is used, the amplifier is less susceptible to power supply and temperature drift, allowing for higher precision and accuracy in signals.

Conclusion

The OPA2350EA/2K5G4 is a precision, high performance amplifier suitable for a wide range of applications. Its low noise, wide dynamic range, and fast settling time make it ideal for instrumentation, medical imaging, process control, and low noise gain stages. The amplifier is capable of providing reliable output across its gain bandwidth product range and offers high linearity and accuracy.