Dallas Texas Instruments Inc. (TI) unveiled a 14-bit, 190 Msamples/second analog-to-digital (A/D) converter that is said to provide strong dynamic performance and low power dissipation.
The ADS5546 offers 73.2 dBFS signal-to-noise ratio (SNR) and 84 dBc spurious-free dynamic range (SFDR) at the maximum sample rate of 190 Msamples/s with an input frequency of 70 MHz for wireless communications, video and imaging, test and measurement (T&M), and instrumentation applications.
"The ADS5546 features best-in-class dynamic performance, only 1.1 W total power dissipation and small 7 x 7 mm QFN packaging," said Kent Novak, general manager for TI's high-speed products.
The A/D converter offers interface flexibility with user-selectable CMOS or double data rate (DDR) low-voltage differential signaling (LVDS) outputs.
The device includes an internal sample and hold, low-jitter clock buffer and internal or external reference capability. It also provides a unique set of value added features, such as programmable power scaling and user-selectable output timing and level controls, according to Novak.
The converter operates from a single 3.3 V supply and is specified over the industrial temperature range of -40°C to +85°C.
See Block Diagram
The ADS5546 is sampling now, with volume production scheduled for 2Q 2006. The device comes in a 48-pin QFN package and is priced at $72.50 in 1,000-piece quantities (suggested resale pricing). Evaluation modules are also available. Click here for the ADS5546 data sheet.
Texas Instruments Inc., 1-800-477-8924, www.TI.com.