| IP명 | A 12-bit 1GHz Current-Steering DAC using Dynamic Element Matching for on-chip Impedance Spectroscopy System | ||
|---|---|---|---|
| Category | Analog | Application | dac |
| 실설계면적 | 4㎛ X 4㎛ | 공급 전압 | 1.2V |
| IP유형 | Hard IP | 동작속도 | 1GHz |
| 검증단계 | Simulation | 참여공정 | SS65-1602 |
| IP개요 | This paper presents a current-steering digital to analog converter (DAC) in 65nm CMOS process which is used for the input of Impedance Spectroscopy system. Because, one chip design is useful for application, have to place DAC and IS system together. The DAC is operated in 6-bit unary, 6-bit binary-weighted mode. Dynamic element matching (DEM) may be used to reduce the influence of current mismatches and output delay mismatches of DFFs. It achieves >80 dB SFDR at 1GHz from DC to Nyquist. For a complete and faster operation of DAC in a chip, other digital circuits have to be added. They are direct digital frequency synthesizer (DDFS) and binary to thermometer decoder. This mixed signal circuit has 1.2V and 1.8V supply. The former is for switching and digital circuits, and the latter is for cascoded devices and other small digital circuit. |
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- 레이아웃 사진 -
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