Abstract
In this paper, a novel methodology for designing and analyzing high performance sigma-delta leapfrog modulators for ultra-high resolution analog-to-digital (A/D) converters is presented. The less sensitive topology, the leapfrog topology, in component variations is analyzed by considering the noise transfer function (NTF). By using theoretical analysis, the loop coefficients are constrained to a small, clear and definite range called the stable region. With the output voltage limited within + 2V, an absolutely stable region (ASR) is obtained. A program that analyzes and generates the required coefficients is constructed for easily designing this topology. For a 256 over-sampling ratio (OSR) and the coefficients from ASR, the signal to noise ratio (SNR) and dynamic range (DR) are 105 dB and 100 dB, respectively. In accordance with the behavior simulation results, the system is not only stable and efficient but also suitable for high-resolution applications.
| Original language | English |
|---|---|
| Title of host publication | 2006 International Conference on Communications, Circuits and Systems, ICCCAS, Proceedings - Circuits and Systems |
| Pages | 2304-2308 |
| Number of pages | 5 |
| Volume | 4 |
| DOIs | |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | 2006 International Conference on Communications, Circuits and Systems, ICCCAS - Guilin, China Duration: 2006 Jun 25 → 2006 Jun 28 |
Other
| Other | 2006 International Conference on Communications, Circuits and Systems, ICCCAS |
|---|---|
| Country | China |
| City | Guilin |
| Period | 06/6/25 → 06/6/28 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
On the design and analysis of the 4th-order leapfrog sigma-delta modulator. / Lin, Kuei Chih; Liu, Chuan Hsi.
2006 International Conference on Communications, Circuits and Systems, ICCCAS, Proceedings - Circuits and Systems. Vol. 4 2006. p. 2304-2308 4064385.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - On the design and analysis of the 4th-order leapfrog sigma-delta modulator
AU - Lin, Kuei Chih
AU - Liu, Chuan Hsi
PY - 2006
Y1 - 2006
N2 - In this paper, a novel methodology for designing and analyzing high performance sigma-delta leapfrog modulators for ultra-high resolution analog-to-digital (A/D) converters is presented. The less sensitive topology, the leapfrog topology, in component variations is analyzed by considering the noise transfer function (NTF). By using theoretical analysis, the loop coefficients are constrained to a small, clear and definite range called the stable region. With the output voltage limited within + 2V, an absolutely stable region (ASR) is obtained. A program that analyzes and generates the required coefficients is constructed for easily designing this topology. For a 256 over-sampling ratio (OSR) and the coefficients from ASR, the signal to noise ratio (SNR) and dynamic range (DR) are 105 dB and 100 dB, respectively. In accordance with the behavior simulation results, the system is not only stable and efficient but also suitable for high-resolution applications.
AB - In this paper, a novel methodology for designing and analyzing high performance sigma-delta leapfrog modulators for ultra-high resolution analog-to-digital (A/D) converters is presented. The less sensitive topology, the leapfrog topology, in component variations is analyzed by considering the noise transfer function (NTF). By using theoretical analysis, the loop coefficients are constrained to a small, clear and definite range called the stable region. With the output voltage limited within + 2V, an absolutely stable region (ASR) is obtained. A program that analyzes and generates the required coefficients is constructed for easily designing this topology. For a 256 over-sampling ratio (OSR) and the coefficients from ASR, the signal to noise ratio (SNR) and dynamic range (DR) are 105 dB and 100 dB, respectively. In accordance with the behavior simulation results, the system is not only stable and efficient but also suitable for high-resolution applications.
UR - http://www.scopus.com/inward/record.url?scp=39749133463&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=39749133463&partnerID=8YFLogxK
U2 - 10.1109/ICCCAS.2006.285138
DO - 10.1109/ICCCAS.2006.285138
M3 - Conference contribution
AN - SCOPUS:39749133463
SN - 0780395840
SN - 9780780395848
VL - 4
SP - 2304
EP - 2308
BT - 2006 International Conference on Communications, Circuits and Systems, ICCCAS, Proceedings - Circuits and Systems
ER -