Texas Instruments LPV821零漂移毫微功耗放大器

Texas Instruments LPV821零漂移毫微功耗放大器是一款单通道运算放大器，用于无线和有线设备中需要低输入失调的“常开”感应应用。LPV821的特点包括初始失调低、失调漂移低、8kHz带宽和650nA静态电流，是行业功率最低的零漂移放大器。该放大器可用于监控电流消耗、温度、气体或应力计的终端设备。LPV821采用专有的自动校准技术，同时提供低偏移电压 (最高10µV），确保随时间和温度变化漂移最小。此外，该放大器具有皮安级偏置电流，从而减少监控具有高输出阻抗和放大器配置的传感器（设有兆欧级反馈电阻）的应用中经常出现的误差。

The Texas Instruments LPV821 uses a proprietary auto-calibration technique to simultaneously provide low offset voltage (10µV, maximum) and minimal drift over time and temperature. In addition, the amplifier has pico-amp bias currents which reduce errors commonly introduced in applications monitoring sensors with high output impedance and amplifier configurations with megaohm feedback resistors.