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设计人员在用高性能Ａ／Ｄ变 换器（ＡＤＣ）时有一个共同的问题：市场上只有很少的放大器能提供缓冲输入信号所需的精度和驱动１６位Ａ／Ｄ变换器而不降低性能。一个１０Ｖ满量程ＡＤＣ必须能分辨１５０μＶ。这是一个高指标，甚至在输入频率低到１００ＫＨｚ时也是高指标。
Designers have a common problem with high-performance A / D converters (ADCs): Few amplifiers on the market provide the accuracy required to buffer input signals and drive 16-bit A / D converters without sacrificing performance . A 10V full-scale ADC must be capable of resolving 150μV. This is a high indicator and is a high indicator even at input frequencies as low as 100 KHz.