OPA1688IDRGR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The OPA1688IDRGR is an instrumentation amplifier used in a wide variety of applications. This versatile device is capable of accurately amplifying different signals and outputs low distortion and low noise (LDN) in order to maintain the desired signal-level fidelity. It is the ideal choice for applications requiring accurate measurement and amplification such as those in medical, industrial, and consumer electronics.

Overview

The OPA1688IDRGR is a single-channel fully differential low noise instrumentation amplifier with flexible gain selection and excellent performance. This product utilizes proprietary design techniques to achieve very low noise (3 μV RMS) and low distortion (0.00001%) performance. Its input stage is fully differential with a common-mode voltage range covering 4.7V to 6.5V. This makes it suitable for both single supply and dual supply applications. The gain of the OPA1688IDRGR can be adjusted by simply changing the gain-setting resistors from 10 to 5000, allowing accurate gain settings in 1dB steps.

Features

• High accuracy and high common-mode rejection ratio (CMRR) with low distorted output
• Low noise (3μV RMS) and low distortion (0.00001%)
• Wideband operation – gain flatness up to 200kHz
• Programmable gain – 10 to 5000 in 1dB steps
• Robust ESD protection
• Low power consumption (<200 μA) at 5V
• Wide common-mode voltage range (4.7V to 6.5V)

Application Fields

The OPA1688IDRGR is suitable for a wide range of applications such as medical instrumentation, industrial process control, audio and video systems, robotic control, and automotive electronic systems. With its low noise feature, it can be used in applications that require high signal-to-noise ratios such as high quality audio systems, medical systems, and laboratory equipment. Additionally, the wide range of gain settings enables precision signal amplification for various applications.

Working Principle

The OPA1688IDRGR consists of two stages: the input stage and the output stage. The input stage consists of two differential inputs that allows any signal of common mode voltage range (4.7V to 6.5V) to be measured. The signal is then amplified in the first stage and the output is then buffered and fed to the output stage. The gain of the amplifier is set by adjusting the resistor values of the gain-setting resistors. The output stage buffers the signal and drives the load. It has the ability to drive load capacitances up to 300pF, which makes it suitable for driving capacitive loads.

Conclusion

The OPA1688IDRGR is an excellent low noise, low distortion instrumentation amplifier with versatile gain selection and robust ESD protection. It is suitable for a wide range of applications, from medical and industrial to audio and automotive systems. With its high input common-mode voltage range and low noise feature, it is capable of providing accurate signal gains in various applications.

The specific data is subject to PDF, and the above content is for reference