LT1885IS#TRPBF

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LT1885IS#TRPBF is a high-performance instrumentation amplifier, available in both single and dual-supply versions. It is a three-module design, with a common-mode feedback amplifier and an inverting amplifier that can adjust the gain, and a differential driver to provide high-frequency output levels. This amplifier provides high performance as it is optimized for low noise, wide bandwidth and low power consumption.

Application Field

LT1885IS#TRPBF is commonly used in data acquisition systems, communications, instrumentation, and industrial sensors and actuators. Additionally, it provides a cost-effective solution for feedback networks, line drivers and buffered instrumentation amplifiers. It is an ideal amplifier for low-level wiring applications, as it has low differential input voltage noise. Its high-speed design also allows it to be used in high-frequency applications.

Working Principle

LT1885IS#TRPBF is able to maintain high performance due to its principle of operation. It uses an inverting amplifier to achieve its high performance. In the inverting amplifier, the amplifier gain is set by the ratio of its two resistors. The input signal is inverted, its voltage amplified and output at the other lead of the amplifier. This amplified signal is given to the common-mode feedback amplifier, which controls the output voltage of the LT1885IS#TRPBF. This feedback amplifier then reinforces the input signal and keeps the output of the LT1885IS#TRPBF at the desired level.

Additionally, LT1885IS#TRPBF has a differential driver that allows for high-frequency outputs. It can handle input frequency up to 8.5MHz, following the local oscillator frequency of the data conversion board. The differential driver minimizes the number of components needed in the signal path and provides a wide frequency response. It also provides better noise rejection and further improves the signal to noise ratio.

Conclusion

The LT1885IS#TRPBF is a high-performance instrumentation amplifier and buffer amplifier, designed for signal conditioning and data acquisition. It has an inverting amplifier, common-mode feedback amplifier, and differential driver to achieve its superior performance. It is suitable for low-level wiring applications and high-frequency applications. Furthermore, it is a cost-effective solution for high-bandwidth instrumentation applications.

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