ARTICLES

Linear's 140 V precision op amp features 3 pA bias current, 3.5 µVP-P noise

Linear Technology announces the LTC6090, a precision operational amplifier that operates on a supply voltage up to 140 V (or ±70 V). Its combination of rail-to-rail output, 3 pA (typical) input bias current, 1.6 mV maximum input offset voltage and 3.5 µVP-P low frequency noise delivers the precision required for high performance ATE, piezo driver, and DAC buffer applications.


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Linear's fully differential IF 15 dB RF/IF amplifier achieves 50 dBm OIP3

Linear Technology announces the LTC6430-15, a 15dB amplifier, which achieves high dynamic range in a 100 Ohm differential environment from 20 MHz to 1GHz and beyond. Two performance grades are available: at 240MHz, the A-grade OIP3 is typically 50 dBm and is fully tested and guaranteed to be a minimum of 47dBm. Noise Figure is 3dB, which corresponds to an input-referred amplifier noise of 1nV/√Hz.


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Linear's PowerPath prioritizer eases power system design with multiple input sources

Linear Technology Corp. introduces the LTC4417, a triple-supply prioritized PowerPath™ controller for 2.5 to 36 V systems. The controller selects the highest priority valid supply among three inputs to power the load. Priority is defined by pin assignment, while a supply is considered valid after it has been inside a voltage window set by 1.5 percent accurate undervoltage and overvoltage thresholds for 256ms.


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Linear's new rail-to-rail 80 V monitor measures current & voltage with +/-0.75% accuracy

Linear Technology Corp. introduces the LTC2945, a wide range I²C system monitor that monitors the current, voltage and power of any 0 to 80 V rail. In many cases, prior power monitoring solutions are limited to 3 to 5 V supplies and monitor voltages less than 36 V, requiring additional circuitry to monitor higher voltages. The LTC2945 has flexible power supply options, deriving power from a 4 to 80 V monitored supply, a 2.7 to 80 V secondary supply, or from the onboard shunt regulator.


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Linear introduces lowest noise, 16-Bit 20 Msps ADCs that achieve 84 dB SNR

Linear Technology Corp. introduces three low power 16-bit, 20Msps analog-to-digital converters (ADCs), the LTC2269, LTC2270 and LTC2271, offering the lowest input-referred noise and tight integral nonlinearity error (INL) for very high precision DC measurements. With only 46µVRMS input noise and maximum guaranteed INL error of ±2.3LSB, these ADCs are suitable for very low noise, high linearity sampling applications such as digital x-ray, infrared and medical imaging, pachymeters, spectrometry and cytometry.


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Linear's WirelessHART and IP WSNs achieve industry’s lowest power consumption

Linear Technology’s Dust Networks® product group introduces the SmartMesh™ LTC5800 (system-on-chip) and LTP5900 (module) families, the industry’s lowest power IEEE 802.15.4E compliant wireless sensor networking products. SmartMesh ICs and modules enable tiny sensor “motes” to be designed with a battery life of over 10 years, while companion network manager components enable the development of highly robust and secure wireless sensor networks (WSN).


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Linear Technology devices power Mars Curiosity rover

Linear Technology Corp., a leading supplier of high performance analog integrated circuits, announced that its products are playing a key role in the Mars rover launched by NASA’s Jet Propulsion Laboratory (JPL).  Linear Technology’s high performance analog semiconductors are used in the Mars Science Laboratory (Curiosity) rover to enable collection of vast amounts of data, including detailed visual images of the Martian landscape and precise readings to assist scientists in assessing the geology and history of Mars.


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Linear introduces low noise fully differential 1.6GHz buffer

Linear Technology announces the LTC6417, a fully differential buffer amplifier with only 1.5nV/√Hz output-referred noise. The LTC6417 is capable of driving a differential 50 Ohm load and is optimized for driving 14- and 16-bit pipeline ADCs. It can be DC- or AC-coupled at its inputs, and achieves excellent distortion performance for signals up to and beyond 600 MHz. At 140 MHz, OIP3 is 46 dBm, and HD3 is -69 dBc with 2.4 VP-P output swing into a 50Ohm load.


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