The one good new idea here is applying the hierarchical DC transform to inter blocks.

这里一个好的新思路是在块间采用分层DC转换。

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Applications include transducer amplifiers, dc amplification blocks, and all the conventional operational-amplifier circuits that now can be more easily implemented in single-supply-voltage systems.

应用包括传感器放大器，直流放大块，和所有的传统运算放大器，现在可以更容易地在单电源电压系统实现电路。

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Stroll a few blocks east to Lincoln Park for a glimpse into DC's recent baby boom.

BBC: Visiting Washington DC with kids