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Circuits Signal Gain & Filter Single Ended to Differential Conversion

Application

Single Ended to Differential Conversion Click To Select

Function

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133MHz Differential Amplifier with External Gain Setting Resistors, Impedance Matching to a 75Ω Source and Shifting from 2.5V to 1.25V

View Full Size Image View Original Design Note 133MHz Differential Amplifier with External Gain Setting Resistors, Impedance Matching to a 75Ω Source and Shifting from 2.5V to 1.25V

This example shows a single-ended-to-differential amplifier matching a 75Ω source and level shifting from a 2.5V input common mode to a 1.25V output common mode voltage (typical level shifting required from a 5V single-ended circuit to a 3V differential circuit to drive a high speed ADC). The single ended-to-differential gain of the Figure 3 amplifier is 2 (the 1VP-P input signal is amplified into a 2VP-P differential output signal, a typical input voltage range of a high speed ADC).



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