Datasheet
LT1678/LT1679
14
sn16789 16789fs
SI PLIFIED SCHE ATIC
WW
R8
200Ω
R21
100Ω
R13
100Ω
R24
100Ω
R9
200Ω
Q1A
Q10
Q12
Q5
Q6
Q4 Q7
C10
81pF
R
C2
6k
R
C1
6k
Q11
Q3
IB
D4
D3
D1
D2
IC
ID
50µA
IA, IB = 0µA V
CM
> 1.5V ABOVE –V
S
200µA V
CM
< 1.5V ABOVE –V
S
IC = 200µA V
CM
< 0.7V BELOW +V
S
50µA V
CM
> 0.7V BELOW +V
S
ID = 100µA V
CM
< 0.7V BELOW +V
S
0µA V
CM
> 0.7V BELOW +V
S
IA
Q8 Q9
Q21
Q13
×2
Q2B
Q17
Q18
R15
1k
Q24
+
+IN
–IN
50µA
Q15
Q14 Q16
Q25
Q22
100µA
R14
1k
R16
1k
R25
1k
R30
2k
R26
100Ω
R29
10Ω
R23B
10k
R23A
10k
100µA
160µA
Q19
Q20
R20
2k
R2
50Ω
R19
2k
200µA
Q38
Q23
C2
80pF
+
R32
1.5k
Q32
R34
2k
R54
100Ω
R3
100Ω
C3
40pF
C4
20pF
Q29
16789 SS
Q26
Q30
Q31
+
R1
500Ω
C1
40pF
+
+
Q27
Q35
Q34
Q28
OUT
–V
S
+V
S
Q1B Q2A
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