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Transistor Application Selection Guide
Buffer Amplifier
 
  RF to 900 MHz RF to 2.5 GHz RF to 6 GHz
  HBFP-0405 26 dB G @ 2V 22 dB G @ 2V 12 dB G @ 2V
  HBFP-0420 25 dB G @ 2V 20 dB G @ 2V 9 dB G @ 2V
  HBFP-0450 19 dB G @ 2V 13 dB G @ 2V  
  AT-320xx 15 dB G @ 3V 12 dB G @ 3V  
  AT-310xx 14 dB G @ 3 V 10 dB G @ 3 V  
  AT-305xx 13 dB G @ 3V 9 dB G @ 3V  
  AT-415xx 15 dB G @ 5V 10 dB G @ 5V  
  AT-420xx 14 dB G @ 5V 10 dB G @ 5V  
  AT-414xx     9 dB G @8V, 4 GHz
 
  ATF-36xxx     17 dB G @ 1.5V
  ATF-35xxx 20 dB G @ 4V 18 dB G @ 4V 13 dB G @ 4V
  ATF-34xxx 21 dB G @ 4V 18 dB G @ 4V 12 dB G @ 4V
  ATF-38xxx 20 dB G @ 4V 17 dB G @ 4V 10 dB G @ 4V
  ATF-33xxx 21 dB G @ 4V 15 dB G @ 4V 9 dB G @ 4V
  ATF-13xxx   18 dB G @ 3V 14 dB G @ 3V
  ATF-10xxx 18 dB G @ 3V 15 dB G @ 3V 9 dB G @ 3V
  ATF-21xxx 18 dB G @ 3V 13 dB G @ 3V 9 dB G @ 3V, 4 GHz
 
Alternatives:
 
1. Integrated Circuit Buffer Amplifiers
         
  markets Cellular & Cordless
900 MHz ISM
  LAN/modem
  RF Tag & reader
Mobile Radio (SMR)
CATV
pagers / messaging
GPS (1.5 GHz)
PCN (1.8 GHz)
USPCS (1.9 GHz)
MMDS (2 GHz)
2.4 GHz ISM
  LAN/modem
  RF Tag & reader
TVRO (4 GHz)
WLL (4 GHz)
5.8 GHz ISM
  LAN/modem
  RF Tag & reader

amp Function: provides isolation, typically to LO, to prevent impedance loading
 
Operation: Bias for desired gain input matched to S11* output matched to S22*
Key Parameters Gain: 8 to 20 dB  
and ranges: P 1dB: -20 to +10 dBm  
  isolation: 10 to 35 dB    

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this page last updated: 20 October 1999