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最近用OPA549T制作了一个改进型的Howland恒流源，电流峰峰值可达6A。但是恒流带宽有限（接近2KHz）低频时（大概在10Hz以内）电流大小也会衰减。有什么办法可以提高恒流带宽吗？
您好，
可以把电路接线图贴出来让大家分析一下吗
