The AD9643 is a dual 14-bit, analog-to-digital converter (ADC) with sampling speeds up to 250 MSPS. The AD9643 is designed to support communications applications where low cost, small size, wide bandwidth and versatility are desired. The dual ADC core features a multistage, differential pipelinedarchitectur
e with integrated output error correction logic. Each ADC features wide bandwidth inputs supporting a variety of user-selectable input ranges. An integrated voltage reference eases design considerations. A duty cycle stabilizer is provided to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance. The ADC output data are routed directly to the two external 14- bit LVDS output ports and formatted either as interleaved or channel multiplexed. Flexible power-down options allow significant power savings, when desired. Programming for setup and control are accomplished using a 3-wire SPI-compatible serial interface. The AD9643 is available in a 64-lead LFCSP and is specified over the industrial temperature range of -40°C to +85°C.
The AD9643 is a dual 14-bit, analog-to-digital converter (ADC) with sampling speeds up to 250 MSPS. The AD9643 is designed to support communications applications where low cost, small size, wide bandwidth and versatility are desired. The dual ADC core features a multistage, differential pipelinedarchitecture with integrated output error correction logic. Each ADC features wide bandwidth inputs supporting a variety of user-selectable input ranges. An integrated voltage reference eases design considerations. A duty cycle stabilizer is provided to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance. The ADC output data are routed directly to the two external 14- bit LVDS output ports and formatted either as interleaved or channel multiplexed. Flexible power-down options allow significant power savings, when desired. Programming for setup and control are accomplished using a 3-wire SPI-compatible serial interface. The AD9643 is available in a 64-lead LFCSP and is specified over the industrial temperature range of -40°C to +85°C.
