AMC1304L05DW

An ADC or Analog to Digital Converter is a device that converts an analog signal into digital form. The AMC1304L05DW is an integrated digital signal conditioning System from Analog Devices. It utilizes an innovative architecture based on a two-stage Power Conversion Unit (PCU) and a two-stage Performance Enhancement Unit (PEU) that provides higher performance and simplifies design. This system enables the acquisition of critical analog signals in industrial, medical, and consumer applications.

Application Field

The AMC1304L05DW is suitable for use in a wide variety of signal conditioning applications, including those in test and measurement equipment, automated industrial control systems, medical diagnostic systems, and consumer electronics. The two-stage PCU and PEU architecture provides enhanced performance, simplifies design, and reduces system cost and power consumption.

The AMC1304L05DW is specifically designed for amplifier-based applications, providing a highly integrated solution for signal conditioning using an application specific integrated circuit (ASIC). This reduces cost, power consumption, and board space by eliminating the need for complicated analog circuit designs, thereby simplifying overall system designs. Additionally, the AMC1304L05DW can be used for signal conditioning a variety of input signals, including both fully differential or single-ended signals and isolated analog products.

Working Principle

The AMC1304L05DW operates on the principle of A/D conversion. It employs an innovative two-stage architecture consisting of a Power Conversion Unit (PCU) and a Performance Enhancement Unit (PEU). The PCU contains an integrated 8-bit A/D converter with a sampling frequency of up to 5MHz while the PEU contains a programmable output-generation stage that is responsible for the high accuracy of the device.

The PCU is responsible for the first stage of the analog-to-digital conversion and performs the task of converting the input signal into a digital format. During this stage, the PCU amplifies and attenuates the input signal to match the input range of the 8-bit A/D converter. It also includes low-noise input channels with built-in anti-alias filters.

The PEU performs the second stage of the analog-to-digital conversion, which is responsible for the high accuracy of the conversion. This is accomplished by the use of a programmable output-generation stage. This stage includes an 8-bit D/A converter, digital signal‑conditioning components, and analog output-conditioning components. The digital signal‑conditioning components are responsible for adjusting the output of the A/D converter to the ideal center value of the PEU. The analog output-conditioning components provide a low-noise, stable output.

The AMC1304L05DW also includes several protective features designed to ensure safe and reliable operation. These include overvoltage, overcurrent, and overhanging protection, ESD protection, and a built-in watchdog timer. Additionally, the integrated architecture of the device allows for the use of external controllers to further customize performance and accuracy.