LMH6618MK/NOPB

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LMH6618MK/NOPB is a linear amplifier that is specifically designed to provide precision high-speed performance in a wide variety of applications. It is available in a range of package formats and features a wide bandwidth and high gain. The LMH6618MK/NOPB is a monolithic amplifier consisting of a differential amplifier, a current source, a current mirror and an output stage.

The LMH6618MK/NOPB is used in a variety of applications ranging from communications equipment and data converters, to instrumentation and control systems. It is particularly suitable for ultra-low noise, high speed, and high accuracy applications. Its low output noise and wide bandwidth make it suitable for use in high speed sensor signal conditioning and signal processing applications.

Applications

• Communications systems
• High-precision signal conditioning
• Data conversion
• Instrumentation
• Control systems
• Medical systems
• Digital signal processing
• High-precision signal conditioning for sensors, such as RF front-end, piezoelectric, and strain gage
• Signal routing and amplifying
• Power monitoring

Working Principle

The LMH6618MK/NOPB is a transimpedance amplifier that operates on the principle of current feedback in order to reduce noise and provide high precision. It consists of two stages: a differential amplifier, and an output stage made up of a current source and current mirror. The differential amplifier is composed of a pair of transistors, which are connected in a common emitter configuration.

The amplifier’s output current is controlled by a current feedback loop, with the differential inputs providing the reference to the output current. The transistors in the current source are matched, which results in an output polarity that is independent of input voltage. The current mirror component precisely tracks the output current, ensuring that the amplifier maintains a linear response over its wide bandwidth. The combination of the current feedback loop and matched transistors provide the precision, linearity, and low noise performance of the LMH6618MK/NOPB.

The LMH6618MK/NOPB has many operating characteristics that make it ideal for precision instrumentation and high-speed signal conditioning applications. It has a wide bandwidth of 100MHz, an input range of 7.5-15V and a high gain of 140db with a high precision differential input of 6.5mV. Its low noise performance makes it ideal for high speed sensor and data conversion applications.

The LMH6618MK/NOPB is a highly engineered precision amplifier that can be used in a variety of applications from instrumentation to data conversion. Its superior performance in linearity, bandwidth, input range and noise make it an ideal choice for a wide range of applications.

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