LMH6518 825 MHz, Digital Controlled, Variable Gain Amplifier www.
DataSheet4U.
com PRELIMINARY May 30, 2008 LMH6518 825 MHz, Digital Controlled, Variable Gain Amplifier General Description The LMH6518 is a digitally controlled variable gain amplifier whose total gain can be varied from −1.
16 dB to 38.
84 dB for a 40 dB range in 2 dB steps.
The −3 dB bandwidth is 825 MHz at all gains.
Gain accuracy at each setting is typically 0.
1 dB.
When used in conjunction with a National Semiconductor Gsample/second (Gsps) ADC with adjustable full scale (FS) range, the LMH6518 gain adjustment will accommodate full scale input signals from 6.
8 mVPP to 920 mVPP.
The LMH6518 gain is programmed via a SPI-1 se...

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