Tektronix AM502 Differential Amplifier

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The AM502 lets you control gain, DC offset, and low and high frequency response for maximum rejection of unwanted signals. The AM502 is particularly suited to sensor signal amplification or applications where one side of the measured voltage is not ground. Adjustable DC offset before attenuation/amplification allows high amplification even when low-level signals have a DC component. Adjustable filtering (with differential amplification) permits the AM502 to emulate different loop filters on the differential phase comparator outputs in a phase locked loop design.