大家好:
最近在使用LT1997放大电流传感器输出信号，虽然LT1997提供了80种增益组合，但是仍然不满足我的是使用要求。
LT1997可否外接电阻，修改变比。有人试过没，效果怎么样？
LT1997有80种增益组合么，这么多？我是不是看错了？
外接电阻恐怕不行，求和的输入端端没有给出来，所以无法外接，而且关键的是外接电阻会导致漂移不一致。
There are a lot of combinations of connections possible, but since the internal resistors are trimmed for ratio match, not absolute value, there would be gain error and drift if external resistors are…
There are a lot of combinations of connections possible, but since the internal resistors are trimmed for ratio match, not absolute value, there would be gain error and drift if external resistors are added.
我的表述有误，多谢指正。应该是从0.141-80倍的增益变化，大概有24种组合。
