The AD7854AD is an integrated circuit (IC) component manufactured by Analog Devices. It is a simultaneous sampling, 14-bit analog-to-digital converter (ADC) with a versatile serial interface. This IC is specifically designed for precision measurement applications that require high-speed conversion and low power consumption.
One of the key features of the AD7854AD is its ability to sample and convert up to four analog input channels simultaneously. This simultaneous sampling feature enables precise time-aligned measurements, which is particularly useful in applications such as motor control, power monitoring, and data acquisition.
The AD7854AD offers a selectable input range that can be configured as either bipolar or unipolar, providing flexibility to accommodate different signal levels. It supports a wide analog input voltage range of ±10V or 0 to 10V, which allows for accurate measurement of both positive and negative signals.
This IC incorporates a successive approximation register (SAR) architecture, which enables high-resolution conversion with a resolution of 14 bits. The SAR ADC architecture provides excellent linearity and low distortion, ensuring accurate and reliable measurement results.
To communicate with the AD7854AD, it utilizes a serial interface that supports both serial peripheral interface (SPI) and microwire protocols. This flexible interface allows for easy integration with microcontrollers and digital signal processors.
The AD7854AD operates over a wide supply voltage range of 2.7V to 5.25V, making it suitable for various power supply configurations
