Take the signal to the max

announces a new class of CMOS amplifiers with voltage noise like bipolar amplifiers. Generally known for their low input bias current, CMOS amplifiers are inherently noisier than bipolar designs. The LTC6241 dual and LTC6242 quad amplifiers are said to address this fundamental performance trade off.

With low noise of 550nVp-p in the 0.1Hz to 10Hz region, these amplifiers offer a threefold reduction in voltage noise over existing CMOS amplifiers. According to Linear Technology, this performance, previously unattainable from a CMOS amplifier, delivers maximum signal resolution in a wide variety of high-end instrumentation, medical and communication applications requiring high impedance inputs.

The amplifiers minimise a crucial error source, voltage noise, but they also provide DC precision. The LTC6241 and LTC6242 feature 1pA bias current and less than 125uV input offset voltage. Offset voltage drift is guaranteed under 2.5uV/ degrees C while the high voltage gain of 124dB keeps system error to a minimum.