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ADC delivers 72.2dB SNR response up to 70MHz

Posted: 07 Dec 2005     Print Version  Bookmark and Share

Keywords:Linear Technology  analogue-to-digital converter  ADC  LTC2284  LTC2280 

Linear Technology has rolled out a 14bit 105MSPS dual high-speed analogue-to-digital converter (ADC) that delivers a flat SNR response of 72.2dB up to 70MHz, as well as SFDR of 88dB at baseband. The new LTC2284 is the latest in a pin-compatible family of dual ADCs recognized for their low power, small solution size and excellent crosstalk specifications. These features, bundled with their high dynamic range performance, make these devices suitable for portable communications equipment and the latest generation of software defined radios.

The 10bit LTC2280 and 12bit LTC2282 105MSPS dual ADCs accompany the LTC2284. The three dual ADCs expand the 3V pin-compatible family of 10-, 12- and 14bit parts, ranging from 10MSPS up to 105Msps. The 105MSPS ADCs consume 270mW per channel and feature -110dB crosstalk between channels.

The LTC2284 low power family is housed in a small 9-by-9mm QFN package. The integrated bypass capacitance further reduces the overall solution size. The part provides the flexibility to choose between two input spans. In addition, the ADCs are optimized for undersampling of signals up to 140MHz and have a wide analogue input bandwidth of 575MHz.

The LTC2280, LTC2282 and LTC2284 are supported with demo boards for quick device evaluation, which can be purchased online. These devices are available in production quantities in both commercial and industrial temperature grades and are priced at Rs.2,807.47 ($61.50), Rs.1,574.92 ($34.50) and Rs.513.56 ($11.25), respectively in 1,000-piece quantities.

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Related Datasheets
Part Number Description Category
LTC2284 Dual 14-Bit, 105Msps Low Power 3V ADC Cards and Modules
LTC2280 Dual 10-Bit, 105Msps Low Noise 3V ADC Cards and Modules
LTC2282 Dual 12-Bit, 105Msps Low Power 3V ADC Cards and Modules



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