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LF441CN Datasheet(PDF) 2 Page - Texas Instruments |
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LF441CN Datasheet(HTML) 2 Page - Texas Instruments |
2 / 12 page TLH9297 February 1995 LF441 Low Power JFET Input Operational Amplifier General Description The LF441 low power operational amplifier provides many of the same AC characteristics as the industry standard LM741 while greatly improving the DC characteristics of the LM741 The amplifier has the same bandwidth slew rate and gain (10 kX load) as the LM741 and only draws one tenth the supply current of the LM741 In addition the well matched high voltage JFET input devices of the LF441 re- duce the input bias and offset currents by a factor of 10000 over the LM741 A combination of careful layout design and internal trimming guarantees very low input offset voltage and voltage drift The LF441 also has a very low equivalent input noise voltage for a low power amplifier The LF441 is pin compatible with the LM741 allowing an immediate 10 times reduction in power drain in many appli- cations The LF441 should be used where low power dissipation and good electrical characteristics are the major considerations Features Y 110 supply current of a LM741 200 mA (max) Y Low input bias current 50 pA (max) Y Low input offset voltage 05 mV (max) Y Low input offset voltage drift 10 mV C (max) Y High gain bandwidth 1 MHz Y High slew rate 1 V ms Y Low noise voltage for low power 35 nV SHz Y Low input noise current 001 pA SHz Y High input impedance 1012X Y High gain VO e g10V RL e 10k 50k (min) Typical Connection TLH9297 – 1 Ordering Information LF441XYZ X indicates electrical grade Y indicates temperature range ‘‘M’’ for military ‘‘C’’ for commercial Z indicates package type ‘‘H’’ or ‘‘N’’ Connection Diagrams Metal Can Package TLH9297 – 2 Top View Note Pin 4 connected to case Order Number LF441MH883 See NS Package Number H08A Dual-In-Line Package TLH9297 – 4 Top View Order Number LF441ACN LF441CM or LF441CN See NS Package Number M08A or N08E BI-FETTM is a trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation RRD-B30M115Printed in U S A |
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