Drop-in replacement for industry-standard LM20 is lowest-power device available
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Geneva,
November 21,2006 -
STMicroelectronics (NYSE: STM) today announced a precision
temperature sensor with an ultra-low supply current requirement of less than
4.3-microamps (typical) and a tiny 4-lead UDFN package, making it ideal for 3G
cell phones and other battery applications where low power, coupled with small
size, accuracy and linearity over the full temperature range, are essential.
The new STLM20
is the lowest-current drop-in replacement for industry-standard LM20 devices,
and is the first in a new series of precision temperature sensors from ST.
The new device is an analog-output temperature sensor operating over a –55
to +130 degrees C temperature range. At 25 degrees C the precision sensor’s
temperature-to-voltage accuracy is plus or minus 1.5 degrees C, and it is
plus/minus 2.5 degrees C over the entire operating temperature range. The
STLM20 is supplied in a tiny 1.0mm x 1.3mm x 0.5mm thick 4-lead UDFN package –
as well as in 5-lead SOT323 (SC70) – to meet the demands of space constrained
products.
Operating from a supply voltage of 2.4V to 5V, the STLM20 draws a maximum of
8µA over the full temperature range. It is targeted for the RF section of 3G
mobile phones and multimedia PDAs, monitoring transmitter power amplifiers to
guarantee linearity as required by the W-CDMA (Wideband Code Division Multiple
Access) 3G standards. The STLM20 is also suitable for temperature-compensated
crystal oscillators and battery chargers and other portable applications, such
as GPS devices and medical instruments.
The STLM20 is available now, priced at $0.25 in high volumes. For more
information, go to www.st.com/sensors.
Click
here for the high-resolution photo
About STMicroelectronics
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.
Information last updated Jan 2006
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