| 摘要 |
<p>The present invention teaches a variety of driver amplifiers (300) having a transmit mode suitable for driving the load resistance (Rload) of a network with an amplified version of the input signal (Vin), and a standby mode wherein the driver amplifier (300) consumes substantially no current and isolates the load resistance (Rload) from the input signal (Vin). These amplifiers (300) are also characterized in that during transitions back and forth between standby mode and transmit mode, a minimum of standby transient leaks out onto the network. Further, the noise power delivered to the network in standby mode is substantially minimized, the remaining noise being primarily due to thermal noise produced by a resistor (R1) utilized to provide matched termination to the network.</p> |
