Ronald Spilka, Dominik Gruber, Timm Ostermann,
"Use of a Calibrated Voltage Reference to Enhance the Performance of Switched Capacitor Sigma-Delta ADCs over Process Corner"
, in NORCHIP, 2011: NORCHIP, 2011, 11-2011, ISBN: 978-1-4577-0514-4
Original Titel:
Use of a Calibrated Voltage Reference to Enhance the Performance of Switched Capacitor Sigma-Delta ADCs over Process Corner
Sprache des Titels:
Englisch
Original Buchtitel:
NORCHIP, 2011
Original Kurzfassung:
To enhance the performance of a switched-capacitor sigma-delta ADC we present a digitally trimmable on-chip voltage reference with a minimum step size in the range of 1-2mV@1.5-2.5V. Due to a multi-stage calibration scheme the output voltage of the reference could be additionally adjusted over a wide range of 5OO-700mV@1.7-2.1V. This can be useful to later adjust the reference levels in the sigma-delta modulator after design time (post-production).