DDC316

16 通道电流输入 16 位 ADC

The is a 16-bit, 16-channel, current-input analog-to-digital converter ADC. It combines both current-to-voltage and analog-to-digital A/D conversion so that 16 separate low-level current output devices such as photodiodes can be directly connected to its inputs and digitized.

For each of the 16 inputs, the DDC316 provides a dual-switched integrator front-end. This configuration allows for continuous current integration: while one integrator is being digitized by the on-chip ADC, the other is integrating the input current. Adjustable integration times range from 10µs to 1ms.

The DDC316 provides a serial interface of the output data, either multiplexed onto a single data output pin or parallel on four output pins. The output mode can be selected based on the available integration time.

The DDC316 uses a +5V analog supply and a +3.3V digital supply. Operating over the temperature range of 0°C to +70°C, the DDC316 is offered in a BGA-64 package.

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SINGLE-CHIP SOLU ON TO MEASURE 16 LOW-LEVEL CURRENTS

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INTEGRATING I-TO-V CONVERSION FRONT-END

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PROGRAMMABLE FULL-SCALE : 3pC to 12pC

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ADJUSTABLE SPEED:

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Data Rate Up To 100kSPS

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Integration Time Down To 10µs

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ANALOG SUPPLY: +5V

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DIGITAL SUPPLY: +3.3V

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APPLICATIONS

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CT SCANNER DAS

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PHOTODIODE SENSORS

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X-RAY DETECTION SYSTEMS

Protected by US Patent #5841310

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