| 摘要 |
A multi-stage integrator achieves a relatively high small-signal gain, broad bandwidth, and very clean transient pulse response. Only simple amplifying stages (typically including an inverting amplifier(s)) are used. A high gain amplifier is coupled between an integrator input node and amplifier output node. A broadband single stage amplifier (which may comprise or act as a transconductor), may act as a current source for the output transistor and load, coupled between the integrator input node and output node. Preferably, a capacitance is coupled from the integrator input to the amplifier output. A frequency-selective element or network steers signal components to the single stage amplifier or the integrator appropriately to produce a combined output that has the desired characteristics.
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