Name
Abstract | ||
|---|---|---|
This paper presents a process-voltage-temperature (PVT)-robust analog baseband with DC offset cancellation (DCOC) for automotive radar applications. The baseband is composed of three stages of programmable gain amplifier (PGA) and an embedded fifth-order Butterworth filter. A novel embedded G(m)-cell based DCOC feedback loop is proposed to achieve fine DC offset rejection and a low high-pass the cut-off frequency with an economic chip area. The proposed embedded G(m)-cell based DCOC feedback topology is capable of improving gain error and loop stability simultaneously. Besides, a constant overdrive biasing technique is proposed to strengthen PVT robustness. Implemented in 65-nm CMOS technology, the measured results show that the analog baseband can provide a programmable gain range from 18.2 to 70.6 dB with 5.8 dB per step with a gain error of < 0.2 dB, while the 1-dB bandwidth range is from 200 kHz to 10 MHz. An OIP3 of 7.8 dBm and an input referred noise (IRN) of 15.8 nV/root Hz are obtained. The gain deviation is lower than 2.2 dB across all PVT corners. The core circuit consumes a dc power of 6 mW from a 1.2-V supply and occupies a chip area of 0.1 mm(2). |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1109/ACCESS.2019.2908218 | IEEE ACCESS |
Keywords | Field | DocType |
Analog baseband,automotive radar,DC offset cancellation (DCOC),filter,process-voltage-temperature (PVT)-robust,programmable gain amplifier (PGA) | Baseband,Computer science,Automotive radar,Electronic engineering,DC bias,Distributed computing | Journal |
Volume | ISSN | Citations |
7 | 2169-3536 | 0 |
PageRank | References | Authors |
0.34 | 0 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Weiping Wu | 1 | 2 | 1.08 |
| Lei Zhang | 2 | 48 | 16.33 |
| Yan Wang | 3 | 183 | 62.13 |