By Analog Devices Inc 43
ADI’s AD6684 is a 135 MHz bandwidth, quad IF receiver with four 14-bit, 500 MSPS ADC and various digital processing blocks consisting of four wideband DDCs, an NSR, and VDR monitoring. The device has an on-chip buffer and a sample-and-hold circuit designed for low power, small size, and ease of use. The AD6684 is designed to support high precision communications applications such as 3G / 4G, LTC, and W-CDMA bands. The quad ADC cores feature a multistage, differential pipelined architecture 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. The device has flexible power-down options that allow significant power savings when desired. All of these features can be programmed using the 1.8 V capable, 3-wire SPI. The AD6684 is optimized for wide input bandwidth, excellent linearity, and low power in a small 10 mm x 10 mm, 72-LFCSP package with an operating temperature range of -40°C to +105°C.
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