| Autor: |
Ran Fang, Yacong Zhang, Guannan Wang, Meng Chen, Zhongjian Chen, Lijiu Ji, Wengao Lu |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
2012 IEEE 11th International Conference on Solid-State and Integrated Circuit Technology. |
| DOI: |
10.1109/icsict.2012.6467719 |
| Popis: |
This paper presents a Switched-Capacitor Single-ended to Differential (SC-STD) stage for A/D conversion of an Infrared Focal Plane Array (IRFPA) Readout Integration Circuit(ROIC). The SC-STD stage converts the output of the Capacitive Trans-Impedance Amplifier (CTIA) into differential signals, which can be used as the input of the subsequent A/D conversion. A novel Switched-Capacitor Common-Mode Feedback (SC-CMFB) technique with only two capacitors and single phase clock is proposed. Performances of the SC-STD stage are verified by a 14-bit column-paralleled Successive-Approximation A/D converter which is fabricated in a 0.35um CMOS-based process technology. The SFDR of the A/D converter is up to 93dB at a sampling clock of 31.25 KHz with an input signal of 1.009 KHz. The THD of the SC-STD circuit is up to −94dB at a 1V Vpp input of 1.009 KHz. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
