STMicroelectronics unveils A/D converters

FEB 22--STMicroelectronics NV (Geneva, Switzerland; www.st.com) has released its first three analog-to-digital (A/D) converters--one 8-bit and two 10-bit devices--both fabricated with 0.25-µm CMOS technology. These devices are the company's initial offerings in a planned line of CMOS A/D converters. The 8-bit TSA0801 and the 10-bit TSA1001 and TSA1002 devices come with a pipeline structure and a built-in voltage reference, use digital error correction, offer a 2-V p-p differential input range, and operate from a single 2.5-V supply.

The TSA0801 8-bit device, which targets camcorders and digital communications systems, provides a sampling frequency of 40 million samples/s and a power dissipation of 40 mW at 40 million samples/s.

The 10-bit TSA1001, which aims at video processing, medical imaging, and ultrasound portable applications, offers a 25 million-samples/s frequency and a power dissipation of 35 mW at 25 million samples/s (10 mW at 5 million samples/s).

The 10-bit TSA1002, which is directed at medical-imaging and ultrasound systems, portable instrumentation, and high-speed DSP interfaces, runs at a 50 million-samples/s frequency and a power dissipation of 50 mW at 50 million samples/s.

The pin-compatible A/D converters, which are packaged in a 7 x 7-mm, 48-pin TQFP, can withstand a commercial temperature range of 0°C to +70°C and an extended temperature range of -40°C to +85°C.