T. Miki, H. Kouno, T. Kumamoto, Y. Kinoshita, T. Igarashi, K. Okada
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引用次数: 31
摘要
本文介绍了一种低功耗BiCMOS a /D转换器，该转换器采用“差分电压子转换器”，将互补模拟输入的电压差直接转换为数字代码。这种转换技术降低了A/D转换器的功耗和信号延迟。一些新的电路技术也被开发出来，以实现单5v电源的高精度转换。该10位A/D转换器采用0.8 /spl mu/m BiCMOS工艺制造，工作速度为50 MS/s，功率为500 mW。
A 10-bit 50 MS/s 500 mW A/D converter using differential-voltage subconverter
This paper describes a low-power BiCMOS A/D converter using a "differential voltage subconverter", which directly converts a voltage difference of complementary analog inputs to a digital code. This conversion technique reduces power consumption and signal delay in the A/D converter. Several circuit techniques have also been newly developed to achieve high-accuracy conversion with single 5 V power supply. The 10-bit A/D converter is fabricated in a 0.8 /spl mu/m BiCMOS process and it operates at 50 MS/s with 500 mW.
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