Rail-to-rail op amps feature precision and power efficiency

March 1, 2017

Milpitas, CA. Linear Technology has introduced the LTC6258/59/60 and LTC6261/62/63 single/dual/quad op amps, extending its line of power-efficient, low-noise, precision operational amplifiers. These devices are part of a family of power-efficient op amps ranging from 1.3-MHz GBW product at 20 µA supply current to 720-MHz GBW product at 3.3 mA supply current. The latest family members operate on a 1.8-V to 5.25-V supply, feature rail-to-rail inputs and outputs, and include versions with shutdown mode, further reducing power consumption during periods of inactivity.

Input offset voltage is 400 μV max. The devices are fully specified over the industrial (-40°C to +85°C) and extended (-40°C to +125°C) temperature ranges.

With supply current of only 20 μA per amplifier, the LTC6258/59/60 achieve 1.3-MHz gain bandwidth product and 240-V/ms slew rate. They include input EMI filters that provide 45-dB rejection at 1 GHz. They are stable for any gain and with any capacitive load.

The LTC6261/62/63 achieve 30-MHz GBW product and 7-V/μs slew rate, drawing just 240 μA per amplifier. Wideband voltage noise is just 13 nV/√Hz. They are stable for any gain and for capacitive loads up to 1nF.

The single LTC6258 and LTC6261 are available in a space-saving 2-mm x 2-mm DFN package, priced starting at $1.24 each in quantities of 1,000 pieces. The dual LTC6259 and LTC6262 are available in the same size DFN package, as well as 8-lead SOT-23, MSOP-8, and MSOP-10 with shutdown mode. The quad LTC6260 and LTC6263 are available in the MSOP-16 package.


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