Design and error analysis of a OTA for high speed pipeline ADC

Autor: Zheying Li, Junfeng Yang
Rok vydání: 2013
Předmět:
Zdroj: 2013 5th IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications.
DOI: 10.1109/mape.2013.6689932
Popis: This work designs and simulates a high-speed low-power operational transconductance amplifier(OTA), which is used in a 100Msps, 8 bit pipeline ADC with 1.5 bit per stage. Primary objective of the design has been to analyze how the error of OTA (offset voltage and gain error) impact to the performance of ADC. The OTA use the circuit of fully differential telescopic cascode to get high gain and low power, it achieves 45dB voltage gain and the average offset voltage of this OTA is only 512.1uV.The ADC achieves 0.7LSB DNL and 0.9LSB INL with low power consumption from 1.8V supply.
Databáze: OpenAIRE