A 75MS/s Low Power Pipeline ADC with scalable Resolution

A low power pipeline ADC with selectable resolutions of 13bit and 11bit has been implemented. The maximum sampling rate is 75MS/s. In 13bit mode the power consumption is 49mW and the SINAD 67.4dB for a 0.5MHz signal. In 11 bit mode it consumes 26mW, the SINAD is 62.1dB for a 0.5MHz signal. The low power consumption has been achieved by omitting building blocks that are not absolutely essential for a pipeline ADC, like an active S&H or a common-mode regulation