Referenced Items are not available for this document.
A 88-dB DR, 84-dB SNDR Very Low-Power Single Op-Amp Third-Order 
Modulator
A 88-dB DR, 84-dB SNDR Very Low-Power Single Op-Amp Third-Order
A low-power switched-capacitor third-order sigma- delta (ΣΔ) modulator suitable for portable sensor systems is described. The architecture uses only one operational amplifier working in a time-interleaved fashion. The architecture employs swing reduction techniques to limit the swing and the slew-rate requirements of all internal nodes. Realized in a 0.18-μm 2P6M CMOS technology, the modulator provides 84-dB SNDR and 88-dB dynamic range in a signal bandwidth of 100 kHz and clock at 3.2 MHz. The 1.5-V supplied prototype dissipates 140 μW with a FoM of 54 fJ/conversion-level.
Published in:
Solid-State Circuits, IEEE Journal of
(Volume:47
,
Issue:
9
)
Date of Publication: Sept. 2012
- Page(s):
- 2107 - 2118
- ISSN :
- 0018-9200
- INSPEC Accession Number:
- 12933503
- Digital Object Identifier :
- 10.1109/JSSC.2012.2199669
- Product Type:
- Journals & Magazines
- Date of Publication :
- 05 July 2012
- Date of Current Version :
- 21 August 2012
- Issue Date :
- Sept. 2012
- Sponsored by :
- IEEE Solid-State Circuits Society
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