SBOS710D October 2014 – February 2018 LMH5401
PRODUCTION DATA.
The LMH5401 is a voltage feedback (VFA)-based fully-differential amplifier (FDA) offering a GBP of 8 GHz with flexible gain options using external resistors. The core differential amplifier is a slightly decompensated voltage feedback design with a high slew rate and best-in-class linearity up to 2 GHz for G = 12 dB (SE-DE, DE-DE).
As with all FDA devices, the output average voltage (common-mode) is controlled by a separate common-mode loop. The target for this output average is set by the VCM input pin. The VOCM range extends from 1.1 V below the midsupply voltage to 1.1 V above the midsupply voltage when using a 5-V supply. Note that on a 3.3-V supply the output common-mode range is quite small. For applications using a 3.3-V supply voltage, the output common-mode must remain very close to the midsupply voltage.
The input common-mode voltage offers more flexibility than the output common-mode voltage. The input common-mode range extends from the negative rail to approximately 1 V above the midsupply voltage when powered with a 5-V supply.