Title :
New logarithmic two-step flash A/D converter with digital error correction for MOS technology
Author :
Guilherme, Jorge ; Vital, João ; Franca, José E.
Author_Institution :
Center for Microsyst., Inst. Superior Tecnico, Lisbon, Portugal
Abstract :
A new technique for realising in MOS technology a logarithmic analog-to-digital (A/D) converter employing a two-step flash architecture suitable for high-frequency operation is described. While the logarithmic operation is achieved by replacing the linear operations of subtraction and multiplication by simple scaling operations, the use of digital error correction techniques allows one to achieve high resolution and high dynamic range performance. An example is given to illustrate the proposed technique
Keywords :
CMOS integrated circuits; analogue-digital conversion; arithmetic; error correction; CMOS technology; MOS technology; digital error correction; high dynamic range performance; high resolution; high-frequency operation; logarithmic two-step flash A/D converter; scaling operations; Analog integrated circuits; Analog-digital conversion; Attenuation; CMOS technology; Digital integrated circuits; Error correction; Integrated circuit technology; Pulse width modulation converters; Quantization; Voltage;
Conference_Titel :
Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2972-4
DOI :
10.1109/MWSCAS.1995.510230
