MAX188BEAP+T

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The MAX188BEAP+T is a low cost, low power, high performance, self-calibrating, continuous-time sigma-delta A/D converter that operates from both five volt and 3.3V supplies. Combining most of the advanced features that are usually limited to high end data acquisition systems into a small, highly integrated 28-pin package, the MAX188BEAP+T can provide single supply operation, high precision, low power, and low cost. With this device, the customer can select either the cmos output or the lcmos output to meet the application needs. It is suitable for industrial, health care and consumer applications.

The MAX188BEAP+T combines a low power, high performance 16-bit A/D converter and a T-circuit 20/18-bit Sigma-Delta modulator with two inverting amplifiers and two, four-state control switches, all on a single chip. The device has a great feature which is an integrated, self-calibrating sample and hold that allows single-supply operation. The self-calibrating feature also reduces board design complexity and cost.

The MAX188BEAP+T is designed to increase accuracy, minimize errors and to minimize system power consumption. The signal conditioning and signal processing circuits, such as a high pass filter, compensation circuits and sample rate generator, are all integrated into a single chip and do not require external components for signal conditioning and signal processing, thus reducing system size and power consumption.

The MAX188BEAP+T is optimized for applications that require low power, high precision and a wide dynamic range. It can be used in applications that range from temperature measurement, motor control systems, bio-sensors and imaging, up to audio and video signal processing. Its features of low power and high accuracy make it an ideal choice for low power and low cost industrial, health care and consumer applications.

The basic working principle of the MAX188BEAP+T is based on a Sigma-Delta modulator. A sigma-delta modulator is a type of circuit used to convert an analog input signal into a digital output signal at high precision. It consists of a feedback loop and an oversampling circuit. The feedback loop takes the output of the system, which is a digital signal, and subtracts it from the input of the system which is the analog signal. The oversampling circuit is used to sample the analog signal at high rates to produce a high-resolution digital output. The output of the modulator is then low pass filtered to remove noise and to reconstruct the input signal.

The MAX188BEAP+T also goes a step further by providing integrated self-calibration. The integrated calibration feature of the device uses an internal reference cell to automatically perform calibration of the signal chain. The device self-calibrates the offset, gain and temperature drift so that the accuracy is maintained over wide temperature and voltage ranges, thus reducing the need for extensive manual calibration.

The MAX188BEAP+T provides a variety of output types that are based on the application needs. It features a CMOS output and a low CMOS output (LCMOS) which can be used to provide a high resolution digital output signal that is compatible with most Serial Bus and digital interface systems. In addition, it can also provide an analog voltage output that can be used with ADC chipsets and other signal conditioning circuits.

In summary, the MAX188BEAP+T is a low cost, low power, high performance, self-calibrating, sigma-delta A/D converter that operates from both five-volt and 3.3V supplies. It provides reliable signal conditioning and signal processing, high precision, low power and low cost. It is suitable for a wide range of industrial, health care and consumer applications. Its integrated self-calibration feature reduces the need for manual calibration, thus ensuring consistent accuracy over wide temperature and voltage ranges. The device can also provide CMOS and LCMOS outputs, as well as an analog voltage output, depending on the application.

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