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INA219是一款仪表放大器,仪表放大器是由3个运放组成的,关于仪表放大器和普通的运放有什么区别,你可以google一下,另外,关于INA219的Spec,你可以参考它的datasheet:
您好,
INA219是High-side Current/Power Shunt Monitor,用于电流、电压监测,I2C数字接口。
相比于仪表放大器,具有较高的CMR和CMRR。