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| Content Provider | IET Digital Library |
|---|---|
| Author | Xing, X. Gielen, G. |
| Abstract | A 40 MHz-bandwidth (BW) 12-bit delta-sigma modulator (DSM) fabricated in 90 nm CMOS is presented. A noise-free capacitive local feedback scheme is proposed for noise transfer function complex zeros generation. Moreover, the operational transconductance amplifiers (OTAs) are implemented with a current-sharing feedforward technique to largely reduce the power and to boost the gain. With a 960 MHz clock frequency and 1.2 V supply, the modulator achieves 74.4 dB dynamic range and 69.7 dB peak signal-to-noise and distortion ratio (SNDR). The DSM FoM is 0.22 pJ/conv, which is among the lowest of the published moderate resolution DSMs in this high-bandwidth range. |
| Starting Page | 585 |
| Ending Page | 587 |
| Page Count | 3 |
| ISSN | 00135194 |
| Volume Number | 49 |
| e-ISSN | 1350911X |
| Issue Number | Issue 9, Apr (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/49/9 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2013.0536 |
| Journal | Electronics Letters |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | A/D And D/A Convertor Amplifiers Bandwidth 40 MHz CMOS Analogue Integrated Circuit CMOS Integrated Circuit CMOS Technology Continuous-time ΔΣ Modulator Current-sharing Operational Transconductance Amplifier Technique Current-sharing OTA Technique Delta-sigma Modulation Delta-sigma Modulator DSM FoM Frequency 960 MHz Microwave IC Noise Transfer Function Complex Zero Generation Noise-free Capacitive Local Feedback Scheme Operational Amplifier Size 90 Nm SNDR UHF Amplifiers UHF Integrated Circuit Voltage 1.2 V Word Length 12 Bit |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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