MAX479EPD

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The MAX479EPD is a highly integrated low power, low cost instrumentation amplifier. It features high accuracy, low power, and compact size for a wide range of applications in instrumentation, audio and data acquisition systems. It is designed to handle both analog and digital signals. The device incorporates a differential input stage, a low power amplifier stage, a wide range of gain and filtering functions, and an adjustable output stage.

The MAX479EPD’s differential input stage has a low noise input impedance of 10 KΩ with a minimum of 1 Vrms; it also provides high-impedance gain control with low noise input buffers. The low power amplifier stage boosts the differential input amplitude and provides a wide range of gains (from 2 V/V to 16 V/V). These gains are selectable via a three-bit binary or digital input, or they can be adjusted using an external resistor. The device also provides internal gain and offset adjustment with temperature-compensated offset matched to the gain.

The MAX479EPD also features filtering functions. This includes a low-pass filter for -3 dB corner frequency at 2 MHz, a high-pass filter for -3 dB corner frequency of 200 Hz, and a band-pass filter for center frequency of 100 kHz. The adjustable output stage provides a maximum of 20 Vpp output, precision current sources and adjustable output impedance.

Applications for the MAX479EPD are varied. These include medical instrumentation, data acquisition, audio system sensors and microphones, industrial automation systems and controllers, acoustic modeling, and automotive instrumentation. The device is also ideal for portable electronics where power savings and size are a priority.

In summary, the MAX479EPD is a low-power, low-cost instrumentation amplifier that is suitable for a wide range of applications. It provides gains from 2 V/V to 16 V/V, wide range of filtering functions, and adjustable output stage. The device can be used in medical instrumentation, data acquisition, audio system sensors and microphones, industrial automation systems and controllers, and automotive instrumentation. With its small size and low power consumption, the MAX479EPD is ideal for portable electronics.

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