AD7902/AD7903 Analog-to-Digital Converter

Dual-differential 16-bit, 1 MSPS PulSAR 12.0 mW ADC in QSOP from Analog Devices

Image of Analog Devices' AD7902/AD7903 Analog-to-Digital ConverterAnalog Devices' AD7903 is a dual 16-bit, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDDx, per ADC. It contains two low-power, high-speed, 16-bit sampling ADCs and a versatile serial interface port. On the CNVx rising edge, the AD7903 samples the voltage difference between the INx+ and INx− pins. The voltages on these pins usually swing in opposite phases between 0 V and VREF. The externally-applied reference voltage of the REFx pins (VREF) can be set independently from the supply voltage pins, VDDx. The power of the device scales linearly with throughput.

The AD7902 is a dual 16-bit, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDDx, per ADC. It contains two low-power, high-speed, 16-bit sampling ADCs and a versatile serial port interface (SPI). On the CNVx rising edge, the AD7902 samples an analog input IN+ in the range of 0 V to VREF with respect to a ground sense IN−. The externally applied reference voltage of the REFx pins (VREF) can be set independently from the supply voltage pins, VDDx. The power of the device scales linearly with throughput.

AD7902AD7903 Analog-to-Digital Converter
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Publicado: 2014-03-07