MAX11202BEUB+

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The MAX11202BEUB+ is a high-precision, high-performance analog-to-digital converter (ADC) from Maxim Integrated. This device is ideally suited for medical, industrial, and other application fields where high accuracy is of paramount importance.

The MAX11202BEUB+ offers 16-bit resolution, ±1 LSB INL, and ±2 LSB DNL performance. It is designed to operate over a wide range of temperatures and supports both single-ended and differential inputs. The device operates with a single 3V digital supply and can sample up to 2.5MS/s with no pipeline delay. The device is also capable of direct battery operation and adapts to input ranges of -13.5V to +13.5V.

The MAX11202BEUB+ has an integrated on-chip custom-filtering channel multiplexer and a serial interface to configure the device for operation. It also includes an on-chip voltage reference and a reference bypass resistor for adjustment. The device is available in a 5.0mm x 5.0mm 28-pin TQFN package.

The working principle of the MAX11202BEUB+ is based on the successive approximation register technique. This technique can quantify analog input signals in discrete steps. It does this by analyzing the capacitive array formed by the successive approximation register. It compares the charge stored on the capacitor array elements with the analog input signal by activating a feedback loop. At each step of the feedback loop, the digital coding of the analog input is improved. The resolution of the digital coding depends on the number of bits in the successive approximation register.

The MAX11202BEUB+ features on-chip oversampling which enables it to generate higher resolution digital codes. Oversampling works by sampling the analog input signal at a rate higher than the required resolution. The device then applies digital filtering algorithms to process the oversampled data and generate the required resolution. This process reduces quantization errors and ensures high-accuracy measurements.

The MAX11202BEUB+ includes both static differential non-linearity (DNL) and static integral non-linearity (INL) error compensation. Static INL error compensation ensures that the device maintains accuracy across different temperature and supply voltage conditions while static DNL improves performance when the ADC is used with an unbalanced input signal.

The MAX11202BEUB+ is designed to provide high-precision performance in the medical, industrial and other application fields. With its high resolution and fast sampling rate, this device is ideal for precise signal analysis. It also provides excellent DNL and INL error compensation along with low power consumption, making it very suitable for battery-operated applications.

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