Abstract
In this paper, a combined digital foreground self-calibration algorithm is designed to calibrate the gain error and capacitor mismatch error in pipelined analog-to-digital converter (ADC). For the gain error, it is detected by digital circuit and calibrated by modifying the feedback capacitance in operational amplifier. Similarly, the capacitor mismatch error is also detected by digital circuit and calibrated by a specific formula. Finally, the calibration of pipelined ADC is accomplished by combining the two error calibration algorithm. For a 14-bit pipelined ADC with gain error and capacitor mismatch error, its performance is ENOB=8.62bit and SFDR=60.8dB.With the help of the algorithm presented in this paper, its performance can be improved to ENOB=13.37bit and SFDR=88.7dB.
| Original language | English |
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| Title of host publication | 2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT) |
| Pages | 1-3 |
| Number of pages | 3 |
| DOIs | |
| Publication status | Published - 26 May 2021 |
| Event | 2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT) - Nanjing, China Duration: 23 May 2021 → 26 May 2021 |
Conference
| Conference | 2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT) |
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| Period | 23/05/21 → 26/05/21 |
Keywords
- Operational amplifiers
- Microwave integrated circuits
- Simulation
- Capacitors
- Millimeter wave technology
- Capacitance
- Approximation algorithms