MAX11058ECB+T

Data Acquisition - Analog to Digital Converters (ADC)

MAX11058ECB+T is a 16-bit, 2.5V to 13V, single-channel, low power and high accuracy signal conditioning Analog-to-Digital Converter (ADC) that is optimized for current monitoring. This ADC offers improvements in both performance and functionality over alternative product solutions. MAX11058ECB+T\'s features include a 2.5V to 13V operating voltage range, 16-bit resolution, 10µs conversion time, and a power supply range of 3.3V to 5.5V.

Application Field

The MAX11058ECB+T tightly-coupled CMOS current ADC​ can be used in various applications that require monitoring of current and voltage such as motor and system control, power management, motor drive feedback control, and so on. This ADC offers low noise and excellent DR performance, making it suitable for high accuracy sensing and measurement applications. Because it has a high current resolution and a fast conversion speed, it is ideal for applications that have fast response time requirements. Additionally, its wide range of operating voltage makes it suitable for use in low voltage, low power applications.

Working Principle

The MAX11058ECB+T operation is based on a differential amplifier-type architecture. The circuit includes a differential amplifier\'s output stage, an output buffer, a low power amplifier and a high-impedance CMOS voltage-to-current converter. The output buffer enables use with low impedance loads, while the low power amplifier provides the necessary buffering for accurate current measurement. The CMOS voltage-to-current converter provides the input current to the amplifier, and the differential output stages measure the difference in the current to generate an output voltages.

The MAX11058ECB+T uses a reference voltage to convert the input current into a digital representation at the output. It uses an open-loop, switched-capacitor design which has a fast settling time and low power. The ADC uses a temperature compensation circuit which ensures accuracy and stability over a wide temperature range. The circuit includes a Digital-to-Analog Converter (DAC) and an amplifier, which are used to compensate for offsets caused by temperature variation.

The MAX11058ECB+T uses a Sigma-Delta architecture to provide excellent high frequency performance. This architecture also allows the ADC to achieve a dynamic range of 16-bits while using very low power. The conversion time is 10µs, while the supply voltage range is 3.3V to 5.5V.

In summary, the MAX11058ECB+T is an ideal solution for high accuracy current measurement applications. It offers a wide operating voltage range and excellent performance, while the DAC and amplifier provide improved dynamic range and accuracy. The low power design and fast settling time make it suitable for low voltage and low power applications.