MAX4267ESA+

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The MAX4267ESA+ is an extremely low noise, high precision/high CMRR dual operational amplifier with rail-to-rail outputs. This device is designed to provide a low noise interface between low-level signals and higher voltage systems, without compromising accuracy. It can be used in a wide range of applications requiring high performance, low noise, and robust operation.

The application field of the MAX4267ESA+ falls into the category of linear amplifiers, instrumentation OP amps, and buffer amps. It is a dual monolithic high performance device, using a combination of low noise design techniques, precision high CMRR design architectures, and rail-to-rail output capabilities to provide:

• High level of accuracy and low noise
• High common mode rejection ratio
• Wide range of pressure and temperature capability
• Rail-to-rail output capability
• Improved output voltage range and performance

The MAX4267ESA+ is ideal for uses such as sensory control, low frequency audio applications, instrumentation, and high speed data acquisition systems. With its small 10-lead MSOP package, it is suitable for applications requiring small size and low-noise performance. It features low supply current, a wide power supply range from 2.7V to 12V, low noise input voltage offset, low gain drift, and rail-to-rail output swing.

The working principle of the MAX4267ESA+ is based on the basic operation of an operational amplifier. It is a feedback control circuit composed of two input differential amplifier stages, a biasing stage and an output stage. The first differential amplifier stage accepts an input signal, amplifies it and sends it to the second stage. The second stage amplifies the amplified signal and sends it to the biasing stage. The biasing stage adjusts the offset voltage of the operational amplifier and sets the gain of the amplifier. The output stage of the operational amplifier supplies the required current to the output pin. The feedback control network helps to improve the bandwidth, linearity, distortion, and noise of the operational amplifier.

The MAX4267ESA+ uses a special precision high CMRR (Common Mode Rejection Ratio) design architecture to ensure high accuracy and low noise performance. The CMRR and input bias current of the device are determined by the Miller capacitance of the first stage differential amplifier. This design also helps to reduce the input voltage offset and gain drift. The improved linearity and noise performance of the device also provides rail-to-rail output swing at low supply current. As a result, the MAX4267ESA+ provides high precision and low noise performance for applications such as sensory control, low frequency audio applications, instrumentation and high speed data acquisition systems.

The MAX4267ESA+ is a reliable and robust dual operational amplifier with precision high CMRR design architecture and rail-to-rail output capability. Its high performance and low-noise characteristics make it suitable for a wide range of linear amplifier, instrumentation OP amp, and buffer amp applications.

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