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LT1241 error amplifier open loop phase

In the LT1241 datasheet , error amplifier's open loop gain & phase curve is given & same is attached . From the curve the unity gain (0db) is around 1MHz & the phase is around 80deg. But in the page no.10 of datasheet , they mentioned as phase margin at unity gain is 80deg. Here my query is whether the open loop gain-phase curve is showing phase or phase margin

  • Hi nagasahitya,

    Sorry for late reply. I'm not sure if I understand your question fully. Page 10 first two sentences in datasheet are referring to this gain and phase plots you've attached (found in page 6). Phase margin is phase measured at unity gain (0dB) which is 80deg . Cross-over frequency (unity gain) of 1MHz.

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