the dual transistor multiplier allows temperature compensation of the output stage bias currents by monitoring both the pre-driver temperature and the output temperature.
The effect of driver Vbe changes with temperature do not need compensation.
The effect of driver Vbe changes with temperature do not need compensation.
GEirin,
1.2V reference would be better. Would you tell us confidentially who's the mastermind behind the arrangement around T5 and what prevents you from using active current sources?
1.2V reference would be better. Would you tell us confidentially who's the mastermind behind the arrangement around T5 and what prevents you from using active current sources?
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Theirs but to do and die."
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Theirs not to make reply,
Theirs not to reason why,
Theirs but to do and die."
-Tennyson
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Hello AndrewT.
Thanks for you reply.
Why 2SA1360 is not suitable as driver?
• Complementary to 2SC3423
• Small collector output capacitance: Cob = 2.5 pF (typ.)
• High transition frequency: fT = 200 MHz (typ.)
GEirin
Thanks for you reply.
Why 2SA1360 is not suitable as driver?
• Complementary to 2SC3423
• Small collector output capacitance: Cob = 2.5 pF (typ.)
• High transition frequency: fT = 200 MHz (typ.)
GEirin
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