DC782A-P

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The DC782A-P evaluation board is an efficient and flexible analog-to-digital converter (ADC) suitable for use in a wide range of high-speed data acquisition applications. This evaluation board allows rapid evaluation of signals and systems with up to 8-bit resolution, while operating at speeds of up to 48Msps.

The DC782A-P board is designed to accommodate multiple configurations for various device testing requirements. It supports a wide range of input ranges, including ±1.2V, ±2.5V, and ±5V. Additionally, the board is capable of direct input of AC signals up to 10MHz. The board also features adjustable input DC-offsets down to ±100mV, adjustable sample rate, and adjustable digital filter settings for both low- and high-pass filters.

The DC782A-P evaluation board has a high level of accuracy and low noise due to its integrated PMOSFET preamplifier and two switched capacitor integrator blocks. It has wide dynamic range and very low power consumption during operation. All signals are monitored with a built-in, four-channel logic analyzer.

The DC782A-P board also features a wide range of connectors for the data output, control inputs, and power inputs. This board includes an FPGA for user programming of the device as well as an Ethernet controller for remote communication and monitoring. Moreover, an embedded PC and an external host computer can be connected for an even wider range of test possibilities.

In terms of working principle, the DC782A-P board consists of four channels, each equipped with a PMOSFET preamplifier, two switched capacitor integrator blocks, and an analog-to-digital converter (ADC). In order to accurately sample signals, the board utilizes voltage trackers, which are essentially switches that rapidly switch between two voltage reference levels. The switch timing is determined by the user-selectable sample rate. Whenever a sample is taken, the PMOSFET preamplifier amplifies the signal a number of times. Then, the two switched capacitor integrator blocks are used to increase the signal-to-noise ratio of the sampled signal. Finally, the ADC converts the analog signal to its digital representation.

Overall, the DC782A-P evaluation board is an ideal choice for a wide range of analog-to-digital conversion applications. It offers an impressive level of accuracy, low noise performance, wide dynamic range, and very low power consumption, making it an ideal solution for data acquisition, signal processing, and analog instrumentation applications. Furthermore, it is fully compatible with the DC782A processor family for easy integration in existing systems.

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