LTC6247CTS8#TRPBF

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The LTC6247CTS8#TRPBF represents a low noise monolithic unity-gain amplifier with an exceptionally wide common-mode input voltage range. It can be used in a wide array of applications and is especially useful when AC or DC coupling, low noise, and high common-mode voltage range are primary considerations. This device can be used in a variety of applications, including instrumentation, op-amps, buffer amplifiers, and more. It is ideal for use in sensitive audio circuitry, low power supply sensors and any application requiring low offset, extremely low noise and low power.

Application Field

The LTC6247CTS8#TRPBF is primarily used for processing audio signals, controls, and sensor signals in a wide variety of applications, including portable audio, instrumentation systems, and low power audio amplifiers. The low bandwidth, extremely low noise, ultra-high common- mode voltage range, and low power make it ideal for these applications. Additionally, its wide open-loop gain ensures low noise and distortion during signal processing.

Instrumentation systems are one of the more prominent applications for the LTC6247CTS8#TRPBF, specifically, remote sensing applications such as phasemeters, signal detectors, signal analyzers, and power meters. The device’s high common-mode input range and low noise capability makes it especially useful in signal conditioning applications utilizing remote sensing.

The LTC6247CTS8#TRPBF can also be used as a buffer amplifier in potentiometric measurements, allowing closed-loop control of a signal, as well as to increase the input sensitivity of motor control and PWM circuits. Additionally, the device has gain bandwidth products and dv/dt higher than many other similarly sized amplifiers, making it ideal for high speed and low power applications.

Working Principle

The LTC6247CTS8#TRPBF is a two-stage amplifier design that combines the features of an operational amplifier with a unity-gain buffer amplifier. Its two-stage architecture enables a wide common-mode input range and remarkably low noise performance. The first stage amplifier is an op-amp,designed to have a low input bias current, high open-loop gain, and low voltage noise to maintain low power consumption and obtain precision signal conditioning. The second stage amplifier is a unity-gain buffer that buffers the output from the op-amp, providing rail-to-rail output as well as excellent common-mode and power supply rejection.

The device operates with a gain bandwidth product of DC to 650 kHz, and its low quiescent current allows a lower power consumption of 100 uA maximum. The LTC6247CTS8#TRPBF features a wide +/-600V common-mode input range and is capable of rail-to-rail output to ensure an ideal signal, regardless of the power supply voltage. At the same time, the device’s low noise performance makes it ideal for audio, remote sensing, and low power supply applications.

The LTC6247CTS8#TRPBF is a unique device in that it offers a high level of performance in a small package, allowing it to be used in a wide array of applications. Its wide common-mode range and low power consumption makes it an ideal solution for portable audio, instrumentation systems, precision signal processing, and any application requiring low offset, extremely low noise and low power.

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