OPA699作为电压跟随器能驱动8欧姆的负载吗
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很难,除非你输出电压不是很大。由手册第三页,最大的抽/灌电流是+/-120mA,如果这个运放可以驱动8欧姆负载,那么在满足运放抽灌电流的要求下,最大摆幅是+/-0.96V。如果此时还要增加输入电压,输出端电压会因为运放无法提供大电流而降低,同时使运放脱离反馈工作状态。