High-speed pipelined A/D converter using time-shifted CDS technique

A time-shifted correlated double sampling (CDS) technique is used to compensate for the finite opamp dc gain in the context of a pipelined analog-to-digital converter (ADC). This technique can significantly reduce the errors due to the finite opamp gain without compromising the conversion speed. This is particularly useful for the design of lowvoltage and high-speed pipelined ADCs where the trade-off of opamp dc gain and bandwidth is critical. Behavior simulation results confirm the effectiveness of this new technique.

• Type: Conference
• Year: 2002
• Where: ISCAS
• Authors: Jipeng Li, Un-Ku Moon
• Keywords: Hardware, ISCAS 2002, Opamp Dc Gain, finite Opamp, finite Opamp Gain