14-Bit, 170 MSPS/210 MSPS/250 MSPS, 1.8 V Analog-to-Digital Converter (ADC)
The ADC core features a multistage, differential pipelined architecture with integrated output error correction logic. The ADC features wide bandwidth inputs that can support a variety of user-selectable input ranges. An integrated voltage reference eases design considerations. A duty cycle stabilizer (DCS) is provided to compensate for variations in the ADC clock duty cycle, allowing the converter to maintain excellent performance.
The ADC output data is routed directly to the external 14-bit LVDS output port.
Flexible power-down options allow significant power savings, when desired.
Programming for setup and control is accomplished using a 3-wire SPI-compatible serial interface.
The AD9642 is available in a 32-lead LFCSP and is specified over the industrial temperature range of −40°C to +85°C. This product is protected by a U.S. patent.
- Diversity radio systems
- Multimode digital receivers (3G)
TD-SCDMA, WiMax, WCDMA,
CDMA2000, GSM, EDGE, LTE
- I/Q demodulation systems
- Smart antenna systems
- General-purpose software radios
- Ultrasound equipment
- Broadband data applications
- Integrated 14-bit, 170 MSPS/210 MSPS/250 MSPS ADC.
- Operation from a single 1.8 V supply and a separate digital output driver supply accommodating LVDS outputs.
- Proprietary differential input maintains excellent SNR performance for input frequencies of up to 350 MHz.
- 3-pin, 1.8 V SPI port for register programming and readback.
- Pin compatibility with the AD9634, allowing a simple migration from 14 bits to 12 bits, and with the AD6672.
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This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
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MS-2124: Understanding AC Behaviors of High Speed ADCs
MS-2210: Designing Power Supplies for High Speed ADC
MS-1779: Nine Often Overlooked ADC Specifications
Analog-to-digital converters (ADCs) have many specifications; some are more important for a given application than...
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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