LF147, LF347-N
www.ti.com SNOSBH1D – MAY 1999 – REVISED MARCH 2013 LF147/LF347 Wide Bandwidth Quad JFET Input Operational Amplifiers
Check for Samples: LF147, LF347-N FEATURES DESCRIPTION The LF147 is a low cost, high speed quad JFET input
operational amplifier with an internally trimmed input
offset voltage ( BI-FET IIв„ў 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
standard LM148. This feature allows designers to
immediately upgrade the overall performance of
existing LF148 and LM124 designs. 1 23 Internally Trimmed Offset Voltage: 5 mV max
Low Input Bias Current: 50 pA
Low Input Noise Current: 0.01 pA/в€љHz
Wide Gain Bandwidth: 4 MHz
High Slew Rate: 13 V/Ојs
Low Supply Current: 7.2 mA
High Input Impedance: 1012О©
Low Total Harmonic Distortion: ≤0.02%
Low 1/f Noise Corner: 50 Hz
Fast Settling Time to 0.01%: 2 Ојs Simplified Schematic The LF147 may be used in applications such as high
speed integrators, fast D/A converters, sample-andhold circuits and many other circuits requiring low …
