The AD7878BQ is a highly integrated analog-to-digital converter (ADC) fabricated on a single monolithic integrated circuit. It is ideal for low-power and battery-operated applications requiring high-resolution measurement and conversion of analog signals. The IC offers various key features that make it a versatile and reliable component in many applications.
One of the primary features of the AD7878BQ is its ability to provide simultaneous sampling and conversion of eight input channels. It can also support differential or single-ended inputs, offering flexibility in signal acquisition. With a 12-bit resolution, the ADC ensures accurate and precise conversion of analog signals into digital values.
The IC incorporates a successive approximation register (SAR) architecture, allowing for a fast and reliable conversion process. It offers a maximum conversion rate of 200k samples per second (SPS), making it suitable for applications requiring real-time monitoring and quick response.
To ensure the stability and accuracy of the measurements, the AD7878BQ features an integrated voltage reference and precision internal clock. This eliminates the need for external references, simplifying the design and reducing component count. Additionally, the IC incorporates a programmable gain amplifier (PGA), enabling amplification and attenuation of input signals to match the desired measurement range.
For ease of integration, the AD7878BQ provides a serial peripheral interface (SPI) that supports both 3-wire and 4-wire communication protocols. This enables seamless interfacing with microcontrollers and other digital devices
