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lf351 - LF351 Wide Bandwidth JFET Input Operational...

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TL/H/5648 LF351 Wide Bandwidth JFET Input Operational Amplifier 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 25 nV/ 0 Hz Y Low input noise current 0.01 pA/ 0 Hz Y Wide gain bandwidth 4 MHz Y High slew rate 13 V/ m s Y Low supply current 1.8 mA Y High input impedance 10 12 X Y Low total harmonic distortion A V e 10, k 0.02% R L e 10k, V O e 20 Vp-p, BW e 20 Hz–20 kHz Y Low 1/f noise corner 50 Hz Y Fast settling time to 0.01% 2 m s Typical Connection TL/H/5648–11 Simplified Schematic TL/H/5648–12 Connection Diagrams Dual-In-Line Package TL/H/5648–13 Order Number LF351M or LF351N See NS Package Number M08A or N08E C 1995 National Semiconductor Corporation RRD-B30M125/Printed in U. S. A.
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Supply Voltage g 18V Power Dissipation (Notes 1 and 6) 670 mW Operating Temperature Range 0 § C to a 70 § C T j(MAX) 115 § C Differential Input Voltage g 30V Input Voltage Range (Note 2) g 15V Output Short Circuit Duration Continuous Storage Temperature Range b 65 § C to a 150 § C Lead Temp. (Soldering, 10 sec.) Metal Can 300 § C DIP 260 § C i jA N Package 120 § C/W M Package TBD Soldering Information Dual-In-Line Package Soldering (10 sec.) 260 § C Small Outline Package Vapor Phase (60 sec.) 215 § C Infrared (15 sec.) 220 § C See AN-450 ‘‘Surface Mounting Methods and Their Effect on Product Reliability’’ for other methods of soldering sur- face mount devices. ESD rating to be determined.
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