(EN)
An amplifier chain with sequential DC offset correction for use in a radio receiver is provided. The amplifier chain has at least first and second amplifier stages connected in series. The first and second stages include an amplifier and a track and hold circuit connected in parallel across the amplifier. The track and hold circuit has a tracking state and a holding state. A control signal is coupled to the track and hold circuits of the first and second stages. The control signal is configured to set the track and hold circuits to the tracking state, which may be done simultaneously, and to sequentially set the track and hold circuit of the first stage to the holding state and then set the track and hold circuit of the second stage to the holding state.
(ZH) 提供一种在射频接收机中使用的具有顺序DC偏移校正的放大器链。该放大器链至少具有串联连接的第一和第二放大级。该第一和第二放大级包括放大器以及与该放大器并联跨接的跟踪和保持电路。该跟踪和保持电路具有跟踪状态和保持状态。控制信号耦合到该第一和第二放大级的跟踪和保持电路。该控制信号配置为将该跟踪和保持电路设置为跟踪状态，该设置可以同时进行，并且顺序地将该第一级的跟踪和保持电路设置为保持状态，和将该第二级的跟踪和保持电路设置为保持状态。
