Press Release Summary:
Designed to drive high-definition signals on 75 ohm video lines, Models TSH340 and TSH341 operate on single 3-5 V power supply, with capability to drive video signal very close to 0 V. Model TSH340 features internal gain of 6 dB, while Model TSH341 allows gain to be set externally. Featuring gain flatness of 65 MHz with low input voltage noise of 7 nV/sqrtHz, amplifiers are specified for 150 and 100 ohm loads, and are supplied in SOT23-5 and SO8 plastic packages.
Original Press Release:
STMicroelectronics Introduces Very High Speed Video Amplifiers to Address HDTV, Professional Video and Medical Imaging Applications
High performance single-supply 300MHz devices drive video signals on 75-ohm lines at close to zero volts
GENEVA, March 9 / -- STMicroelectronics (NYSE:STM), a world leader in analog ICs, today announced the introduction of two new 300MHz amplifiers designed to drive very high-definition signals on 75-ohm video lines in high-end industrial and medical imaging systems, and in HDTV-enabled set-top boxes and DVD players. The cost-effective TSH340 and TSH341 video amplifiers feature operation on a single 3V to 5V single power supply, with the capability to drive the video signal very close to zero volts.
The TSH340 is a buffer with internal gain, providing savings both on board space and in the number of components; the gain is set at 6dB to allow the right level of video signal while maintaining good line matching. The TSH341 is an op-amp that uses the same voltage feedback architecture as the TSH340, but allows the gain to be set externally. Both use a very high-speed 0.25-micron complementary manufacturing technology to achieve up to 300MHz bandwidth for only 9.8mA quiescent current.
High slew rates, low distortion and a gain flatness of 65MHz, combined with a low input-voltage noise of 7nV/sqrtHz, make the TSH340 and TSH341 devices an excellent choice to drive DAC outputs on 75-ohm video lines. The amplifiers are input/output negative rail, which allows them to drive the signal to within 60mV of ground -- guaranteed by production testing -- while operating on a single 5V supply, and enables the video signal to be driven directly from the DAC output without any transition capacitance.
The use of a single power supply, eliminating the need for the negative supply that is usually required, reduces the complexity of applications using the devices and so reduces costs. These are essential and easy-to-use components for high performance video equipment demanding wide bandwidth and high signal purity. The amplifiers are specified for both 150-ohm and 100-ohm loads, and are supplied in the tiny SOT23-5 and SO8 plastic packages.
The TSH340 and TSH341 video amplifiers are supported by an evaluation board kit, optimized for high-speed operational amplifiers, which includes a CD-ROM containing datasheets, application notes, articles and a user manual. They are available in volume now at a price of $1.50 for quantities of 5,000.
Further information can be found at www.st.com/stdlinear
This press release is also available at
..... with links to further information on the TSH340 and TSH341 video amplifiers
About ST's Microcontroller, Linear & Discrete Group
STMicroelectronics is a world leader in offering complete system solutions that leverage its rich portfolio of Microcontroller, Linear, and Discrete products, advanced process and design technologies, and applications expertise. This emphasis on solutions allows the Company to minimize time-to-market for all customers worldwide in existing and emerging applications.
STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence markets. The Company's shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2005, the Company's net revenues were $8.88 billion and net earnings were $266 million. Further information on ST can be found at www.st.com.
CONTACT: Michael Markowitz of STMicroelectronics, +1-212-821-8959, or