MAX1080ACUP+

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Data Acquisition - Analog to Digital Converters (ADC) have a variety of applications, one of them being the MAX1080ACUP+. It is a 12-bit, low power, high accuracy bridge transducer signal conditioning IC.

The MAX1080ACUP+ operates with a built-in power supply of 3.3 V. It allows ‘seamless’ integration of bridge transducers, such as strain gauges, into digital systems. The signal conditioning includes low noise amplification, programmable gain setting, temperature compensation, excitation current, creep compensation, and active filtering.

The bridge transducer typically consists of four active elements connected in a Wheatstone bridge configuration. The transducer provides an output voltage proportional to the applied strain. The signal is conditioned and digitized by the ADC. The output is typically in the range from 0 V to 3.3 V.

The MAX1080ACUP+ has an analog input range of ±5 mV to ±2.2 V. It has a resolution of 12 bits (the ability to resolve 4096 different signal levels) and a signal-to-noise ratio of up to 72 dB. The signal is digitized using ‘Delta-Sigma’ modulators which use an oversampled modulator to provide very low noise conversion.

The ADC is configurable with a variety of settings including bridge excitation current, offset, gain, filter response, and temperature compensation. These parameters can be programmed through the SPI/I2C digital ports. The output of the ADC can be set to digital or analog. If a digital output is chosen then the data can be read out as either a 12-bit or 14-bit digital word.

The MAX1080ACUP+ provides the engineer with a powerful and reliable solution for the signal conditioning and digitization of bridge transducers. It provides high accuracy conversion, low power consumption, and configurability for a variety of applications. It is an excellent choice for low power, low noise solutions where accuracy, precision, and reliability are paramount.

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