[HomeBrew] Direct RF-Sampling ADCs - Breakthrough

[DavidE Benedict]

I don't want any homebrew receiver designers to miss this.
David
W7DBH


Direct RF-Sampling ADCs
http://www.national.com/en/rf/rf_sampling_adc.html

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).



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
software-defined radio (SDR) can now achieve the benefits that RF-sampling
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.