AD7147A-1ACBZ-RL

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The AD7147A-1ACBZ-RL is a high-performance integrated circuit designed for use in data acquisition systems. It combines multiple functionalities such as data conversion, analog input scanning, and remote sensing into a single package. It is ideal for applications in harsh environments such as automotive, industrial, and avionic systems.

Upon powering up, the AD7147A-1ACBZ-RL goes through several initialization cycles that allow it to determine the correct gain and offset settings. The internal 16-bit ADC has a resolution of 15.9 mV and has selectable input ranges from 0.6 V to 1.2 V. The temperature range of the device is from -40°C to +85°C and the supply voltage range is from 3.3 V to 5.5 V.

The AD7147A-1ACBZ-RL offers two single-ended or four differential inputs and can scan up to three blocks simultaneously. The data output, which can be configured for 8-bit, 12-bit, or 16-bit data words, is clocked at up to 125 MHz. The device offers an internal amplifier that amplifies input signals up to 8x, as well as a programmable gain (PGA) to provide additional flexibility in configuring input ranges.

The AD7147A-1ACBZ-RL also provides several features to help simplify the design and integration of data acquisition systems. The remote sensing feature allows for remote temperature measurement, up to two remote temperature sources can be monitored at once. The multi-function (MF) I/O pin can be used for GPIO or internal logic control, such as performing conversions between different logic levels, or for configuring the internal logic states. The device also provides a synchronization signal output to synchronize multiple AD7147A-1ACBZ-RL devices. Lastly, the device has an endurance of up to 10 billion conversions with a single power-up cycle.

The AD7147A-1ACBZ-RL is based on a switched-capacitor architecture. It contains a differential signal conditioning front-end, which balances the input signal, amplifies it, and adjusts the signal levels according to the gain setting. The ADC is implemented using a flash architecture, which: (1) performs comparators of the input signal with reference voltages, (2) converts the comparator values into digital codes, and (3) stores the digital codes in an output register. The ADC can be configured to output 8-bit, 12-bit, or 16-bit words.

The AD7147A-1ACBZ-RL is a great choice for data acquisition applications that demand high performance, flexibility, and reliability. It provides multiple features, excellent accuracy, and is well suited for applications in harsh environments. The device’s robust architecture and user-programmable features make it an ideal solution for a wide range of data acquisition systems.

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