National Semiconductor introduced a 14-bit, 155 mega-sample per second (MSPS) analog-to-digital converter (ADC) that offers a full-power bandwidth of 1.1 GHz. The ADC14155's high bandwidth performance allows it to digitize the first IF, eliminating the need for the second IF stage.

The ADC14155 provides a dynamic performance of 85 dB spurious free dynamic range (SFDR) and a 72 dB signal-to-noise ratio (SNR) at an input frequency of 70 MHz, which is commonly used in communications receivers. The low-jitter front end on the ADC14155 enables a performance of 72 dB SFDR and 68 dB SNR at an input frequency as high as 420 MHz. The ADC14155 operates on a 3.3V supply while consuming 980 mW (typical), with a power-down feature to reduce power consumption to 5 mW. A separate +1.8V supply for the digital interface allows low-power operation with reduced noise. The ADC14155 is available in a 48-pin LLP(R) package and is priced at $61.75 in 1,000-unit quantities and will be released to production in June 2006.