Highest-efficiency rail-to-rail op amp achieves 180 MHz at 1 mA

Highest-efficiency rail-to-rail op amp achieves 180 MHz at 1 mA

The LTC6246, LTC6247, and LTC6248 family of op amps uses a power-efficient SiGe process to achieve 180-MHz gain-bandwidth product and 90-V/µs slew rate, while consuming just 1-mA max supply current per amplifier. These single, dual, and quad op amps also feature rail-to-rail inputs and outputs, as well as 4.2-nV/√Hz wideband noise.

Input offset voltage is specified at 500 µV max and open-loop gain is 45 V/mV. Bias current cancellation is employed to achieve a maximum of 350-nA input bias current over most of the input common-mode voltage range, allowing these products to be used in many applications with high source resistance such as portable instrumentation and other battery-powered or heat-constrained precision systems.

A shutdown feature reduces current consumption to 42 µA in the SOT-23 6-lead single and MSOP-10 dual versions. The dual LTC6247 is also available in a tiny 2 x 2 x 0.55-mm package, as well as the MSOP-8 and SOT-23 8-lead packages. The LTC6248 is available in a 16-lead MSOP package. (Ea/1,000: From $1.39 ea for the single; $1.95 each for the dual, and $3.07 each for the quad — available now.)

Linear Technology , Milpitas , CA
Literature 800-4-LINEAR
http://www.linear.com