Jun 15, 2006 #1 D davidwong Member level 4 Joined Mar 5, 2006 Messages 74 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,898 I read that BJT ratio is usally 8:1, 16:1 or 24:1 due to the layout. not 3:1 why ???
Jun 15, 2006 #2 P ppenday Member level 4 Joined Jan 17, 2005 Messages 70 Helped 6 Reputation 12 Reaction score 2 Trophy points 1,288 Activity points 419 Re: BJT ratio in bandgap we choose 8:1, 16:1, 24:1 for matching purpose. 1 BJT can be surrounded (think of square shape) by 8, 16, 24, etc., BJT'S but not by 3 BJT'S.
Re: BJT ratio in bandgap we choose 8:1, 16:1, 24:1 for matching purpose. 1 BJT can be surrounded (think of square shape) by 8, 16, 24, etc., BJT'S but not by 3 BJT'S.
Jun 15, 2006 #3 D davidwong Member level 4 Joined Mar 5, 2006 Messages 74 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,898 Re: BJT ratio in bandgap I understand 1:8 and 1:24. why 1:16 ??
Jun 15, 2006 #4 eng_Semi Full Member level 6 Joined May 3, 2005 Messages 325 Helped 37 Reputation 74 Reaction score 6 Trophy points 1,298 Location Egypt Activity points 4,111 Re: BJT ratio in bandgap if u choose 1:16 the layout will be (X = dummy) X X A X X A A A A A A A B A A A A A A A X X A X X but i think 1:14 is better A A A A A A A B A A A A A A A u also may choose 1:2 A B A
Re: BJT ratio in bandgap if u choose 1:16 the layout will be (X = dummy) X X A X X A A A A A A A B A A A A A A A X X A X X but i think 1:14 is better A A A A A A A B A A A A A A A u also may choose 1:2 A B A
Jun 15, 2006 #5 jluhzw Member level 5 Joined Nov 15, 2004 Messages 94 Helped 17 Reputation 34 Reaction score 4 Trophy points 1,288 Location Hangzhou China Activity points 756 Re: BJT ratio in bandgap I have seen the ratio 1:5
Jun 15, 2006 #6 D davidwong Member level 4 Joined Mar 5, 2006 Messages 74 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,898 Re: BJT ratio in bandgap jluhzw said: I have seen the ratio 1:5 Click to expand... how to achieve 1:5?
Re: BJT ratio in bandgap jluhzw said: I have seen the ratio 1:5 Click to expand... how to achieve 1:5?