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https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1401861/opa2228-ifference-in-part-numbers
工具与软件：
您好！ 请告诉我 OPA2228U 与 OPA2228UA/2K5有何区别？ 此致、 Jack Barret
A 版本具有较差的电气特性。 2K5后缀表示大卷带上的封装。
