What are the differences between HMC1021 and HMC1120?

Hi,

I'm looking for a supply modulator for envelope tracking application.

I came across some envelope trackers from HMC.

What are the differences between HMC1021 and HMC1120?

Which is better for this application?

Regards,

Vishnu R

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  • +1
    •  Analog Employees 
    on Oct 18, 2019 6:17 PM

    Hi Vishnu,

    HMC1120 ETOUT has different gain and intercept, compared to HMC1021. Because of this, dynamic range of the ETOUT is somewhat larger for the HMC1120. Compare datasheets, page 2 for this information. So for a linearized PA using ET, the efficiency improvements can be captured over a wider operating power range. 

Reply
  • +1
    •  Analog Employees 
    on Oct 18, 2019 6:17 PM

    Hi Vishnu,

    HMC1120 ETOUT has different gain and intercept, compared to HMC1021. Because of this, dynamic range of the ETOUT is somewhat larger for the HMC1120. Compare datasheets, page 2 for this information. So for a linearized PA using ET, the efficiency improvements can be captured over a wider operating power range. 

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