MAX1134BEAP+

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Data Acquisition - Analog to Digital Converters (ADC) is an important field with a wide range of applications, particularly in the industrial and manufacturing sectors. The MAX1134BEAP+ is a precision 24-bit, high-resolution Analog-to-Digital Converter (ADC) designed to meet the demanding requirements of industrial, scientific and data acquisition applications, especially for applications requiring high accuracy, wide dynamic range, low noise and power dissipation.

The MAX1134BEAP+ provides a wide dynamic range from a single supply of 4V to 5.5V and an accuracy of +/-0.005% total unadjusted error (TUE) over the full -40°C to +125°C temperature range. It features an on-chip output register, storing the 24-bit conversion result, which eliminates the need for an external shift register and the associated power consumption. The output latch is configurable to accommodate various data acquisition protocols, such as pulse detect and start conversion, scan protocol.

The MAX1134BEAP+ operates on a wide supply voltage range of 4V to 5.5V and consumes just 0.65mW at 20MS/s. It is available in a small 6-pin SOIC (Small outline integrated circuit) package and two versions are offered with either unipolar or bipolar inputs. It also includes an on-chip reference buffer, which eliminates the need for an external reference. All these features make the MAX1134BEAP+ the ideal choice for high accuracy and high-resolution applications.

The working principle of the MAX1134BEAP+ is based on the successive approximation technique. The successive approximation technique is a process in which the ADC tries to determine the digital output by successively comparing the input analog sample to the ADC reference voltage. The successive approximation technique requires a minimum number of components, including an input stage, a SAR logic block, a reference voltage and 11-bit comparator.

The input stage amplifies and filters the analog signal for the ADC and supplies it to the SAR logic block. The SAR logic block then compares the two inputs, the input analog sample and the ADC reference voltage, and stores the comparator result to the output latch. The output latch stores the 11-bit converted output, which is then converted to a digital value by the ADC converter.

The MAX1134BEAP+ also includes an on-chip power-on reset circuit, which resets the digital output to zero when power is applied. Additionally, it comes with a self-calibration feature, providing an improved accuracy, as well as an on-chip 68.5kHz clock for all clock related operations.

Overall, the MAX1134BEAP+ is a highly accurate, low-power and wide dynamic range Analog-to-Digital Converter (ADC) designed to meet the demanding requirements of industrial, scientific and data acquisition applications. It features a wide supply voltage range of 4V to 5.5V, a power-on reset circuit, a self-calibration feature and an on-chip 68.5kHz clock. It provides an accuracy of +/-0.005% total unadjusted error (TUE) over the full -40°C to +125°C temperature range and is available in a small 6-pin SOIC (Small outline integrated circuit) package.

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