lf356-mwc National Semiconductor Corporation, lf356-mwc Datasheet - Page 15

• Manufacturer Part Number: lf356-mwc
• Description: Jfet Input Operational Amplifiers
• Manufacturer: National Semiconductor Corporation

Typical Applications
(Continued)
Wide BW Low Noise, Low Drift Amplifier
00564670
•
Parasitic input capacitance C1 . (3pF for LF155, LF156 and LF357 plus any additional layout capacitance) interacts with
feedback elements and creates undesirable high frequency pole. To compensate add C2 such that: R2 C2 . R1 C1.
Boosting the LF156 with a Current Amplifier
00564673
•
.150mA (will drive R
I
100 )
OUT(MAX)
L
• No additional phase shift added by the current amplifier
15
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