AD9643-250 14-Bit, 170/210/250 MSPS, 1.8 V Dual-Channel Analog-to-Digital Converter (ADC)
The AD9643 is a dual-channel, 14-bit, sample-rate analog-to-digital converter (ADC) with a sample rate of up to 250 MSPS designed to provide a solution for low-cost, small-foot-factor, wide-bandwidth, multi-function communication applications.
This dual-channel ADC features a multi-stage, differential pipeline architecture with integrated output error correction logic. Each ADC has a wide bandwidth input that supports a variety of user-selectable input ranges. Integrated voltage reference simplifies design. The duty cycle stabilizer can be used to compensate for fluctuations in the ADC clock duty cycle, allowing the converter to maintain excellent performance.
ADC output data is routed directly to two external 14-bit LVDS output ports, formatted as interleaved or channel multiplexed.
Flexible shutdown options can significantly reduce power consumption when needed.
Setup and control programming is done using a three-wire SPI-compatible serial interface.
The AD9643 is available in a 64-pin LFCSP package and is rated for a temperature range of −40°C to +85°C industrial temperatures.
Applications - Communications
- Diversity radio systems
- Multi-mode digital receiver (3G)
TD-SCDMA、WiMax、WCDMA
CDMA2000、GSM、EDGE、LTE
- I/Q demodulation system
- Smart antenna system
- Universal Software Radio
- Ultrasound equipment
- Broadband data applications
Product Focus
- Integrated dual-channel, 14-bit, 170/210/250 MSPS ADC.
- Powered by a single 1.8V supply, the digital output driver is powered by an independent supply to support LVDS output.
- Patented differential inputs maintain excellent signal-to-noise ratio (SNR) performance at input frequencies up to 300 MHz.
- SYNC input enables synchronization between multiple devices.
- Three-wire, 1.8V SPI port for register programming and register readback.
- Pin compatible with the AD9613 for easy conversion of 14-bit to 12-bit products
Features and Benefits:
SNR：71.5 dBFS（185 MHz Ain、250 MSPS）
SFDR：87 dBc（185 MHz Ain、250 MSPS）
Input Noise: -152.0 dBFS/Hz (200 MHz, -1dBFS Ain, 250MSPS)
Total Power Consumption: 785 mW (250 MSPS)
Microchip Centennial Electronic Technology (Shenzhen) Co., Ltd
Address: 13H, Block A, Huaqiang Plaza, Huaqiang Road, Futian District, Shenzhen
Phone: 0755-83591082
Fax: 0755-83591083
Q Q：1051085817
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