| 发明名称 |
AMPLIFIER, FULLY-DIFFERENTIAL AMPLIFIER AND DELTA-SIGMA MODULATOR |
| 摘要 |
An amplifier includes a front-end gain stage and an AC-coupled push-pull output stage. The AC-coupled push-pull output stage includes a first transistor, having a source, a drain and a gate, wherein the source of the first transistor is coupled to a first voltage level. The AC-coupled push-pull output stage further includes a second transistor, having a source, a drain and a gate, wherein the source of the second transistor is coupled to a second voltage level, the gate of the second transistor is coupled to the front-end gain stage, and the drain of the second transistor is coupled to the drain of the first transistor to form an output terminal of the amplifier. Further, the AC-coupled push-pull output stage includes an AC-coupled capacitor, which is a passive two terminal electrical component coupled between the front-end gain stage and the gate of the first transistor. |
| 申请公布号 |
US2015180420(A1) |
申请公布日期 |
2015.06.25 |
| 申请号 |
US201514643240 |
申请日期 |
2015.03.10 |
| 申请人 |
MediaTek Inc. |
发明人 |
HO Chen-Yen;LO Chi-Lun;TSAI Hung-Chieh;LIN Yu-Hsin |
| 分类号 |
H03F1/02;H03F3/45;H03M3/00 |
主分类号 |
H03F1/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An amplifier, comprising:
a front-end gain stage; and an AC-coupled push-pull output stage, comprising:
a first transistor, having a source, a drain and a gate, wherein the source of the first transistor is coupled to a first voltage level;a second transistor, having a source, a drain and a gate, wherein the source of the second transistor is coupled to a second voltage level, the gate of the second transistor is coupled to the front end gain stage, and the drain of the second transistor is coupled to the drain of the first transistor to form an output terminal of the amplifier; andan AC-coupled capacitor, which is a passive two terminal electrical component coupled between the front-end gain stage and the gate of the first transistor. |
| 地址 |
Hsin-Chu TW |
