LF155, LF156, LF355, LF356, LF357
SNOSBH0C –MAY 2000–REVISED MARCH 2013
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*LF155/6 R = 5k, LF357 R = 1.25k
Figure 37. Driving Capacitive Loads
Due to a unique output stage design, these amplifiers have the ability to drive large capacitive loads and still
maintain stability. CL(MAX) ≃ 0.01μF.
Overshoot ≤ 20%, Settling time (ts) ≃ 5μs
For distortion ≤ 1% and a 20 Vp-p VOUT swing, power bandwidth is: 500kHz.
Figure 38. LF357 - A Large Power BW Amplifier
Typical Applications
Figure 39. Settling Time Test Circuit
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Settling time is tested with the LF155/6 connected as unity gain inverter and LF357 connected for AV = −5
FET used to isolate the probe capacitance
Output = 10V step
AV = −5 for LF357
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