LT1351 Linear Technology, LT1351 Datasheet - Page 11

• Manufacturer Part Number: LT1351
• Description: 250uA/ 3MHz/ 200V/us Operational Amplifier
• Manufacturer: Linear Technology

resistive load) the network is incompletely bootstrapped
and adds to the compensation at the high impedance
node. The added capacitance slows down the amplifier
and a zero is created by the RC combination, both of
APPLICATIONS
SI PLIFIED SCHE ATIC
TYPICAL APPLICATIONS
W
–IN
V
V
–
+
Q5
U
V
IN
Q6
INFORMATION
4.64k
U
W
Q7
Q8
13.3k
R1
1k
2200pF
U
W
Q3
Q4
4.64k
Q2
–
20kHz, 4th Order Butterworth Filter
+
LT1351
470pF
U
Q1
Q10
Q14
+IN
5.49k
which improve the phase margin. The design ensures
that even for very large load capacitances the total phase
lag can never exceed 180 degrees (zero phase margin)
and the amplifier remains stable.
Q13
Q9
Q11
Q15
11.3k
4700pF
C
T
Q17
Q12
5.49k
–
+
LT1351
Q18
Q16
220pF
R6
R
R7
C
C
C1
C2
C
Q23
Q20
1351 TA03
V
OUT
Q19
Q22
R2
R4
Q24
Q21
R5
R3
OUTPUT
LT1351
1351 SS
11