12- and 14-bit ADCs break the 100 mW power barrier

摘要

Xignal Technologies AG has launched the industry's lowest power, 14-bit and 12-bit, 40 MHz analog-to-digital converters (ADCs). Based on the company's recently announced breakthrough in Continuous Time Delta Sigma (CT￠Σ) technology, the 12-bit (XT11200) and 14-bit (XT11400) resolution devices consume only 70 mW while operating at 20-40 MSPS data rate. This is half the power consumption of the nearest best-in-class alternatives and the first time such performance has been available at the sub-100 mW power level, and in this instance with increased integration to simplify system design. These new ADCs eliminate costly and power-hungry anti-alias filters. They further simplify system design by providing an on-chip, precision (low jitter) sample clock. Additionally, the devices are easy to drive, needing no differentia! input buffer. XT11x00 ADCs can handle 4 V peak-peak input signals while operating from a 1.2 V DC supply and they offer exceptional linearity and signal-to-noise (SNR) performance.