LF147QML Datasheet, PDF (2/18 Pages) Texas Instruments – LF147QML Wide Bandwidth Quad JFET Input Operational Amplifier

April 2005
LF147QML
Wide Bandwidth Quad JFET Input Operational Amplifier
General Description
The LF147 is a low cost, high speed quad JFET input
operational amplifier with an internally trimmed input offset
voltage (BI-FET II™ 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 LF147 is pin compatible with the stan-
dard LM148. This feature allows designers to immediately
upgrade the overall performance of existing LF148 and
LM124 designs.
The LF147 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.
Features
j Internally trimmed offset voltage:
j Low input bias current:
j Low input noise current:
j Wide gain bandwidth:
j High slew rate:
j Low supply current:
j High input impedance:
j Low total harmonic distortion:
A_V = 10, R_L = 10KΩ, V_O = 20V_P-P
BW = 20Hz – 20KHz
j Low 1/f noise corner:
j Fast settling time to 0.01%:
5 mV max
50 pA Typ.
0.01 pA/√Hz Typ.
4 MHz Typ.
13 V/µs Typ.
7.2 mA Typ.
10¹²â„¦ Typ.
≤0.02% Typ.
50 Hz Typ.
2 µs Typ.
Ordering Information
NS Part Number
LF147J/883
LF147J-SMD
SMD Part Number
8102306CA
Connection Diagram
NS Package Number
J14A
J14A
Dual-In-Line Package
Package Description
14LD CERDIP
14LD CERDIP
Top View
See NS Package Number J14A
20122601
BI-FET II™ is a trademark of National Semiconductor Corporation.
© 2005 National Semiconductor Corporation DS201226
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