Direct RF Sampling ADCs | National Semiconductor - Breakthrough RF-Sampling ADCs... Page 1 of 2 Search For.. Direct RF-Sampling ADCs Home > Direct RF-Sampling ADCs ADC12Dxx00RF Direct RF-Sampling ADCs Sample Beyond 2.7 GHz at up to 3.6 GSPS Breakthrough RF-Sampling ADCs Revolutionize Radio Architectures National's 12-bit direct RF-sampling ADCs can directly sample input frequencies up to and beyond 2.7 GHz at up to 3.6 GSPS. A single direct RF-sampling ADC can replace an entire IF-sampling or ZIF-sampling radio signal path subsystem of mixers, LO synthesizers, amplifiers, filters, and ADCs, drastically reducing bill of materials (BOM) cost, design time, and board size, weight, and power. A wide array of applications such as 3G/4G wireless basestations, microwave backhaul, military, and wideband softwaredefined radio (SDR) can now achieve the benefits that RFsampling provides. The ADC12Dxx00RF family of ADCs improves upon National's existing 12-bit GSPS ADC products by expanding the frequency range over which National's superior dynamic range can be realized. The ADC12Dxx00RF delivers its excellent noise and linearity performance at RF frequencies beyond the 7th Nyquist zone. These five new ADCs are available in speed grades ranging from dual-channel 500 MSPS to single-channel 3.6 GSPS. They are pin-compatible with National's ADC12D1x00 and ADC10D1x00 families, enabling system designers to reuse a single design for multiple speed and resolution combinations. RF Sampling A/D Converters Product ID Sampling Rate Single/Dual-Channel (MSPS) Power (W) IMD3 @ 2.7 GHz (dBFS) Noise Floor (dBm/Hz) ADC12D500RF 1000 / 500 2 -69 -150.5 ADC12D800RF 1600 / 800 2.5 -71 -152.2 ADC12D1000RF 2000 / 1000 3.5 -69 -154 ADC12D1600RF 3200 / 1600 4 -70 -154.6 ADC12D1800RF 3600 / 1800 4.4 -64 -155 http://www.national.com/en/rf/rf_sampling_adc.html 9/29/2011 Direct RF Sampling ADCs | National Semiconductor - Breakthrough RF-Sampling ADCs... Page 2 of 2 Unparalleled Performance Industry's best dynamic performance at 2.7 GHz and beyond Footprint-compatible family from 500 MSPS to 3.6 GSPS Reduce design time and cost and make future upgrades easy by reusing designs at different speed grades Footprint-compatible with National's ADC12D1x00 and ADC10D1x00 Enable design reuse for different dynamic range requirements Industry's largest Nyquist zone of up to 1.8 GHz Enable truly wideband software-defined radio (SDR) Combine multiple wideband and narrowband channels into a single ultra wideband channel New interleaved mode more than doubles useable input frequency range Sample higher input frequencies with higher resolution than previously possible RF-Sampling A/D Applications The RF-sampling ADC family replaces multiple analog components with a single chip, reducing system cost, size, weight, and power, and saving design time. In addition, their excellent performance over a large range of input frequencies up to and beyond 2.7 GHz enables maximum frequency, bandwidth, and overall system programmability and flexibility in many applications including software-defined radio (SDR) and digital pre-distortion (DPD) in LTE/UMTS basestations, radar, lidar, and signal intelligence (SIGINT). Basestations Microwave Backhaul Allows direct RF-sampling in 3G/4G receive and digital predistortion (DPD) signal paths Replace entire IF-sampling and ZIF-sampling subsystems of mixers, LO-synthesizers, amplifiers, filters, and ADCs Enable higher data capacity backhaul link - industry's largest Nyquist zone and best performance beyond 2.7 GHz allows for higher-order modulation over channel bandwidths of at least 1.25 GHz 1.8 GHz Nyquist zone enables ultra-wideband and multiband radio designs RF-sampling capability enables ODU and IDU integration by eliminating entire IF-sampling and ZIF-sampling subsystems RF-sampling capability eliminates multiple frequency downconversion stages Software-Defined Radio and Military Test & Measurement Replace multiple frequency down-conversion stages and combine multiple narrowband and wideband channels into a single ultra wideband channel Enable higher bandwidth scopes and higher resolution, larger bandwidth real-time spectrum analyzers (RTSA) Enable higher linearity analyzers Excellent noise and linearity performance beyond 2.7 GHz and industry's largest Nyquist zone enable digital implementation of filters and mixers, allowing for on-the-fly programming of bandwidth and frequency to maximize system agility and flexibility RF Sampling ADC Resources Related Products Software Defined Radio: Don't Talk to Me About ENOBs (article) Data Converters Ultra High-Speed Gigasample ADCs Software-Defined Radio (SDR) Information WaveVision 5 Software: Data Acquisition & Analysis Tool Software-Defined Radio (SDR) Architecture Gigasample ADC Eval Boards Amplifiers IBIS Models Clock & Timing Solutions (Clock Jitter Cleaners, PLLs) Other RF/IF ICs Wireless Infrastructure Solutions Sign-on My User Preferences My Briefcase(0) My Designs(0) Samples & Orders(0) Send us your feedback or technical question: Sign-on to save and manage products in your MyBriefcase, order free samples, create WEBENCH designs in minutes, and set your personal preferences. 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