LF451 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – LF451 Wide-Bandwidth JFET-Input Operational Amplifier

December 1995
LF451 Wide-Bandwidth
JFET-Input Operational Amplifier
General Description
The LF451 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 cur-
rent 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 cur-
rents The LF451 is pin compatible with the standard
LM741 allowing designers to upgrade the overall perform-
ance of existing designs
The LF451 may be used in such applications as high-speed
integrators fast D A converters sample-and-hold circuits
and many other circuits requiring low input bias current high
input impedance high slew rate and wide bandwidth
Features
Y _{Internally trimmed offset voltage}
5 0 mV (max)
Y _{Low input bias current}
50 pA (typ)
Y _{Low input noise current}
Y _{Wide gain bandwidth}
0 01 pA 0Hz (typ)
4 MHz (typ)
Y _{High slew rate}
13 V ms (typ)
Y _{Low supply current}
3 4 mA (max)
Y _{High input impedance}
10¹²X (typ)
Y _{Low total harmonic distortion AV} e ₁₀ k_{0 02% (typ)}
R_L e 10k V_O e 20 V_p–p f e 20 Hz – 20 kHz
Y _{Low 1 f noise corner}
50 Hz (typ)
Y _{Fast settling time to 0 01%}
2 ms (typ)
Connection Diagram
S O Package
Typical Connection
Top View
Order Number LF451CM
See NS Package Number M08A
TL H 9660 – 2
Simplified Schematic
TL H 9660 – 1
BI-FETTM is a trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL H 9660
TL H 9660 – 3
RRD-B30M125 Printed in U S A