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LMH6515,pdf datasheet (600 MHz
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2009-10-08
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The LMH6515 is a high performance, digitally controlled variable
gain amplifier (DVGA). It combines precision gain control
with a low noise, ultra-linear, differential amplifier. Typically,
the LMH6515 drives a high performance ADC in a broad
range of mixed signal and digital communication applications
such as mobile radio and cellular base stations where automatic
gain control (AGC) is required to increase system dynamic
range. When used in conjunction with a high speed
ADC, system dynamic range can be extended by up to 32 dB.
The LMH6515 has a differential input and output allowing
large signal swings on a single 5V supply. It is designed to
accept signals from RF elements and maintain a terminated
impedance environment. The input impedance is 200Ω resistive.
The output impedance is either 200Ω or 400Ω and is
user selectable. A unique internal architecture allows use with
both single ended and differential input signals.
gain amplifier (DVGA). It combines precision gain control
with a low noise, ultra-linear, differential amplifier. Typically,
the LMH6515 drives a high performance ADC in a broad
range of mixed signal and digital communication applications
such as mobile radio and cellular base stations where automatic
gain control (AGC) is required to increase system dynamic
range. When used in conjunction with a high speed
ADC, system dynamic range can be extended by up to 32 dB.
The LMH6515 has a differential input and output allowing
large signal swings on a single 5V supply. It is designed to
accept signals from RF elements and maintain a terminated
impedance environment. The input impedance is 200Ω resistive.
The output impedance is either 200Ω or 400Ω and is
user selectable. A unique internal architecture allows use with
both single ended and differential input signals.
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