The AD7724AST is an IC component that belongs to the AD7724 series of converters manufactured by Analog Devices. It is a complete, low-cost, 24-bit sigma-delta analog-to-digital converter (ADC) that offers high precision and performance for various applications.
One of the key features of the AD7724AST is its 24-bit resolution, which enables it to provide accurate and detailed conversion of analog inputs into digital values. This high resolution makes it suitable for applications requiring precise measurements, such as industrial control systems, data acquisition systems, medical devices, and instrumentation.
The ADC operates on a sigma-delta conversion technique, which ensures excellent noise rejection and high linearity. It employs a 4th-order modulator for oversampling, followed by a digital filter to remove the quantization noise introduced by the oversampling process.
The AD7724AST supports both single-ended and differential input modes, providing flexibility in various measurement scenarios. It offers a programmable gain amplifier (PGA) that allows the user to adjust the input range according to their specific needs. This feature enables the ADC to accommodate different signal levels, expanding its range of applicability.
Furthermore, the device incorporates an integrated hardware averaging filter, which helps to further reduce noise and enhance the output accuracy. This filter can be programmed to provide different filter settings, allowing the user to optimize the trade-off between response time and noise rejection
