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NXP Semiconductors - Dual N-channel dual gate MOSFET

Numéro de référence BF1218
Description Dual N-channel dual gate MOSFET
Fabricant NXP Semiconductors 
Logo NXP Semiconductors 





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BF1218 fiche technique
BF1218
Dual N-channel dual gate MOSFET
Rev. 01 — 14 April 2010
www.DataSheet4U.com
Product data sheet
1. Product profile
CAUTION
1.1 General description
The BF1218 is a combination of two dual gate MOSFET amplifiers with shared source
and gate2 leads and an integrated switch. The integrated switch is operated by the gate1
bias of amplifier B.
The source and substrate are interconnected. Internal bias circuits enable DC stabilization
and a very good cross modulation performance during Automatic Gain Control (AGC).
Integrated diodes between the gates and source protect against excessive input voltage
surges. The transistor has a SOT363 micro-miniature plastic package.
This device is sensitive to ElectroStatic Discharge (ESD). Therefore care should be taken
during transport and handling.
1.2 Features and benefits
Two low noise gain controlled amplifiers in a single package. One with a fully
integrated bias and one with a partly integrated bias
Internal switch to save external components
Superior cross modulation performance during AGC
High forward transfer admittance
High forward transfer admittance to input capacitance ratio
1.3 Applications
Gain controlled low noise amplifiers for VHF and UHF applications with 5 V supply
voltage
digital and analog television tuners
professional communication equipment

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