LF351 Datasheet, PDF (1/10 Pages) Fairchild Semiconductor – Single Operational Amplifier (JFET)

December 1995
LF351 Wide Bandwidth JFET Input Operational Amplifier
General Description
The LF351 is a low cost high speed JFET input operational
amplifier with an internally trimmed input offset voltage
(BI-FET II^TM technology) The device requires a low supply
current and yet maintains a large gain bandwidth product
and a fast slew rate In addition well matched high voltage
JFET input devices provide very low input bias and offset
currents The LF351 is pin compatible with the standard
LM741 and uses the same offset voltage adjustment circuit-
ry This feature allows designers to immediately upgrade the
overall performance of existing LM741 designs
The LF351 may be used in applications such as high speed
integrators fast D A converters sample-and-hold circuits
and many other circuits requiring low input offset voltage
low input bias current high input impedance high slew rate
and wide bandwidth The device has low noise and offset
voltage drift but for applications where these requirements
are critical the LF356 is recommended If maximum supply
current is important however the LF351 is the better
choice
Features
Y _{Internally trimmed offset voltage}
10 mV
Y _{Low input bias current}
50 pA
Y _{Low input noise voltage}
Y _{Low input noise current}
25 nV 0Hz
0 01 pA 0Hz
Y _{Wide gain bandwidth}
4 MHz
Y _{High slew rate}
13 V ms
Y _{Low supply current}
Y _{High input impedance}
1 8 mA
10¹²X
Y _{Low total harmonic distortion AV}e₁₀
R_Le10k V_Oe20 Vp-p BWe20 Hz – 20 kHz
Y _{Low 1 f noise corner}
k_{0 02%}
50 Hz
Y _{Fast settling time to 0 01%}
2 ms
Typical Connection
Simplified Schematic
Connection Diagrams
TL H 5648 – 11
Dual-In-Line Package
TL H 5648 – 12
Order Number LF351M or LF351N
See NS Package Number M08A or N08E
TL H 5648 – 13
C1995 National Semiconductor Corporation TL H 5648
RRD-B30M125 Printed in U S A