Abstract
This paper presents a 1∼3 GHz voltage controlled oscillator (VCO) with a rail-to-rail VCO tuning voltage (VCONT) range. To obtain wide and linear VCONT range, a new differential amplifier with a rail-to-rail common mode input range and an unstacked output stage is proposed. By using the proposed differential amplifier in the analog fine tuning block, VCONT can span almost the rail-to-rail supply voltage with good linearity. For verification, a prototype VCO was fabricated in a 65 nm 1P7M CMOS process.
| Original language | English |
|---|---|
| Article number | 20160373 |
| Journal | IEICE Electronics Express |
| Volume | 13 |
| Issue number | 11 |
| DOIs | |
| State | Published - 10 Jun 2016 |
Keywords
- Common mode input range
- Differential amplifier
- Voltage controlled oscillator
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