AD7472BRU-REEL

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Analog to digital converters (ADC) are widely used in data acquisition applications. The AD7472BRU-REEL is a low-power, low-power, low-noise, low-cost, guaranteed monotonic 12-bit ADC, which is suitable for applications such as automotive and medical systems. This article will discuss the application field and working principle of the AD7472BRU-REEL in detail.

Application Field

The AD7472BRU-REEL is a monotonic 12-bit analog-to-digital converter (ADC) with a guaranteed 0.4LSB DNL performance over the full temperature range. It is available in a 4-channel, 16-bit form factor, allowing the analog front end to be placed closer to the sensors, avoiding unwanted noise and interference. The AD7472BRU-REEL is designed for automotive and medical systems, to provide accurate and reliable operation using less power than a conventional ADC. It offers a single-ended or a differential input range of +2V to +3V, and an input impedance of 65k Ohms. Additionally, it has an integrated sample-and-hold circuit, a clock input and a selectable reference input.

The AD7472BRU-REEL is designed to operate efficiently over an extended temperature range of -40°C to +105°C, making it ideal for use in space and extreme environment applications. The device is available in three form factors, allowing for different levels of integration. Besides, it has an integrated programmable-gain amplifier (PGA), allowing for further flexibility and customization.

Working Principle

The AD7472BRU-REEL is a 12-bit ADC with a differential input and a 0.4LSB DNL performance. The input range is from +2V to +3V, and an input impedance of 65k Ohms. The device is designed for a low power, low noise, and low-cost operation. The device is based on a successive-approximation (SA) architecture with an internal sample-and-hold circuit and a programmable-gain amplifier (PGA).

The AD7472BRU-REEL typically requires a 3MHz clock, and it is available in several form factors. The device features a low-power, low-noise on-chip sample-and-hold circuit, a selectable reference input, a clock input, and a programmable-gain amplifier (PGA). The device can be programmed to provide a single-ended or a differential input range from +2V to +3V. Additionally, it has an integrated sample-and-hold circuit and an adjustable output data rate of up to 12.5MS/s.

The AD7472BRU-REEL utilizes a successive-approximation (SA) architecture to convert the differentially-sampled analog input signal into a 12-bit digital code. This 12-bit digital code is fed to a 12-bit parallel output latch for further processing. The on-chip sample-and-hold circuit captures the input signal and holds it until conversion is complete. The PGA provides an adjustable gain in order to optimize the resolution of the 12-bit output digital code. The device also has a selectable reference input, a clock input, and a programmable output data rate up to 12.5MS/s.

The AD7472BRU-REEL is designed with an integrated low-power sample-and-hold (SAH) circuit that minimizes power consumption while providing a wide operating range. The device also features a programmable-gain amplifier (PGA), an adjustable output data rate up to 12.5MS/s, and a selectable reference input. It is available in three form factors for different levels of integration.

In summary, the AD7472BRU-REEL is a low-power, low-noise, low-cost, guaranteed monotonic 12-bit ADC. It is designed for use in automotive and medical systems and provides a single-ended or a differential input range of +2V to +3V with an input impedance of 65k Ohms. The device features an integrated sample-and-hold circuit, selectable reference input, clock input, and programmable-gain amplifier (PGA). It is based on a successive-approximation (SA) architecture and has an adjustable output data rate of up to 12.5MS/s.

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