LPV812

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design LPV811, LPV812 SNOSD33B – NOVEMBER 2016 – REVISED NOVEMBER 2016 LPV811/LPV812 Precision 425 nA Nanopower Operational Amplifiers 1 Features 1 Nanopower Supply Current: 425 nA/channel Offset Voltage: 300 µV (max) TcVos: 1 µV/°C Gain-Bandwidth: 8 kHz Unity-Gain Stable Low Input Bias Current : 100 fA Wide Supply Range: 1.6 V to 5.5 V Rail-to-Rail Output No Output Reversals EMI Protection Temperature Range: –40°C to 125°C Industry Standard Packages: – Single in 5-pin SOT-23 – Dual in 8-pin VSSOP 2 Applications CO and O2 Gas Detectors (TIDA-0756) PIR Motion Detectors Current Sensing Thermostats IoT Remote Sensors Active RFID Readers and Tags Portable Medical Equipment Figure 1. Nanopower CO Sensor 1M RL CO Sensor + V + VOUT 3 Description The LPV811 (single) and LPV812 (dual) are a ultralow-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 300µV, the LPV81x 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 LPV81x amplifiers have CMOS input stages with fempto-amp bias currents...