Texas Instruments' LPV812 operational amplifier is an ultra-low-power precision operational amplifier family for “always ON” sensing applications in battery-powered wireless and low-power wired equipment. With 8 kHz of bandwidth from 425 nA of quiescent current and a trimmed offset voltage to under 300 µV, the LPV812 amplifiers provide the required precision while minimizing power consumption in equipment such as gas detectors and portable electronic devices where operational battery-life is critical.
In addition to being ultra-low-power, the LPV812 amplifier has CMOS input stages with femto-amp bias currents for impedance source applications. The LPV812 amplifier also feature a negative-rail sensing input stage and a rail-to-rail output stage that swings within millivolts of the rails, maintaining the widest dynamic range possible. EMI protection is designed into the LPV812 in order to reduce system sensitivity to unwanted RF signals from mobile phones, Wi-Fi, radio transmitters, and tag readers.