Dual Amplifier suits current sensing applications.
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Press Release Summary:
Comprised of 2 independent, high-side current sense amplifiers, Model LTC6103 provides max output of 1 mA and operates from 4-60 V with absolute max voltage of 70 V. It features max input bias current of 170 nA and max input offset voltage of 450 µV. With response time of 1 µsec, device is suited for automatic power shutdown when sensing fault conditions. Gain for each device is set by 2 precision resistors, which allow for accuracy better than 1%.
Original Press Release:
Dual 60V Current Sense Amplifiers Feature Fast Response, Precision & Flexibility
MILPITAS, CA - January 31, 2007 - Linear Technology's LTC6103 contains two independent, high side current sense amplifiers with exceptional precision and response time. As a dual, the LTC6103 is ideal for multiple current sensing applications such as H-bridge driver circuits. The unique topology also allows the second amplifier to be used for bi-directional operation, high/low current ranging or high voltage level translation.
The LTC6103 features outstanding performance: input bias current is 170nA Max and the maximum input offset voltage is 450µV. This precision performance allows the part to resolve very small currents and still operate over a large dynamic range. The LTC6103 can withstand voltages up to 70V, a valuable feature when power supply failures or catastrophic load changes can lead to voltage fly back conditions. With a response time of 1usec, the LTC6103 is ideal for automatic power shutdown when sensing fault conditions. Gain for each device is set by two resistors and since the gain resistors are the primary determinants of accuracy, precision resistors allow for accuracy better than 1%.
"The LTC6103 builds on our existing family of precision, fast and flexible current sense devices," says Mike Kultgen, Design Manager for Linear Technology. "Having a second integrated current sense amplifier increases the usefulness of this part by much more than a factor of two."
LTC6103 is in full production, with prices starting at $1.66 each in 1,000-piece quantities.
Summary of Features: LTC6103
o Dual, Independent High Side Current Sense Amplifiers
o 1us Response Time (to 2.5V on a 5V Output Step)
o Operates from 4V to 60V, 70V ABS MAX
o Low Offset Voltage: 450uV (Max)
o Low Input Bias Current: 170nA Max
o Each Amplifier Gain Configurable with 2 Resistors
o Max Output Current: 1mA
o 110dB Min PSRR
o 275uA Typical Supply Current per Amplifier
o -40°C to 125°C Operating Temperature Range
o MSOP8 Package
About Linear Technology
Linear Technology Corporation, a manufacturer of high performance linear integrated circuits, was founded in 1981, became a public company in 1986 and joined the S&P 500 index of major public companies in 2000. Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, and many other analog functions. Applications for Linear Technology's high performance circuits include telecommunications, cellular telephones, networking products such as optical switches, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, security monitoring devices, high-end consumer products such as digital cameras and MP3 players, complex medical devices, automotive electronics, factory automation, process control, and military and space systems. For more information, visit www.linear.com
LT, LTC, LTM, Burst Mode and are registered trademarks of Linear Technology Corp.
John Hamburger, Director Marketing Communications
jhamburger@linear.com
Tel 408-432-1900 ext 2419
Doug Dickinson, Media Relations Manager
ddickinson@linear.com
408-432-1900 ext 2233
