MAX1113EPE+

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The MAX1113EPE+ is a high-accuracy, low-power, 8-bit analog-to-digital (A/D) converter with differential inputs. It is part of the family of A/D converters made by Maxim Integrated, which distinguishes it from its competitors. The MAX1113EPE+ has many features that make it ideal for use in data acquisition systems, such as its high-accuracy, low-power performance, broad input range, and factory-calibrated accuracy. It has two inputs that accept either differential or single-ended signals, both of which are 12-bit A/D converters. Additionally, the MAX1113EPE+ is housed in a small surface-mount package, making it easy to integrate with other components in a data acquisition system.

Application Field

The MAX1113EPE+ is designed specifically for use in data acquisition systems. Its differential inputs allow it to acquire signals from both physical and virtual sources, such as strain gauges, thermocouples, encoders, and potentiometers. It can also be used to acquire inverting and non-inverting input signals from synchro, resolver, and incremental transducer systems. Furthermore, the MAX1113EPE+ is suitable for use in power analysis applications, such as AC/DC-resistance-capacitance (R/C), resistance–capacitance–inductance (R/C/L), and wattmeter measurements. In addition, the MAX1113EPE+ can be used for medical, automotive, industrial process control, precision weighing, and imaging applications.

Working Principle

The MAX1113EPE+ is a high-accuracy, low-power, 8-bit A/D converter with differential inputs. It utilizes a dual-slope conversion technique, which is basically a successive sequence of alternating integration and truncation cycles. In each cycle, the input signal is integrated for a programmed amount of time. The integration period is set so that the difference between the analog signal voltage and a reference voltage is maximized; thus increasing the accuracy of the A/D converter. Following the integration period, the integrated signal is allowed to decay until the reference voltage is re-visited. This reset phase allows the converter to accurately measure the signal voltage with minimal power consumption. The entire process is then repeated until the signal is converted from analog to digital.

The MAX1113EPE+ has an 8-bit resolution and a maximum sample rate of 500 kSPS. It operates over a single supply voltage of 2.7 to 5.25 V, making it suitable for both battery- and line-powered applications. The converter also features a differential buffered voltage reference, which ensures that the reference voltage does not vary with input voltage or ambient temperature. It has a wide input range of 0 V to 5 V, making it suitable for a wide range of input signals. Additionally, the MAX1113EPE+ has a factory-calibrated accuracy of 24 LSB, which reduces the time and cost associated with calibration.

The MAX1113EPE+ is an ideal choice for data acquisition applications. Its dual-slope conversion technique ensures accurate and reliable measurements, while its low power consumption makes it suitable for battery-powered applications. Its wide input range and factory-calibrated accuracy make it an ideal choice for power analysis and various other applications, such as medical and automotive applications.

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