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LM208 Folha de dados(PDF) 1 Page - National Semiconductor (TI) |
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LM208 Folha de dados(HTML) 1 Page - National Semiconductor (TI) |
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1 / 10 page  TLH7758 December 1994 LM108LM208LM308 Operational Amplifiers General Description The LM108 series are precision operational amplifiers hav- ing specifications a factor of ten better than FET amplifiers over a b55 Cto a125 C temperature range The devices operate with supply voltages from g2V to g 20V and have sufficient supply rejection to use unregulat- ed supplies Although the circuit is interchangeable with and uses the same compensation as the LM101A an alternate compensation scheme can be used to make it particularly insensitive to power supply noise and to make supply by- pass capacitors unnecessary The low current error of the LM108 series makes possible many designs that are not practical with conventional ampli- fiers In fact it operates from 10 MX source resistances introducing less error than devices like the 709 with 10 kX sources Integrators with drifts less than 500 mVsec and analog time delays in excess of one hour can be made us- ing capacitors no larger than 1 mF The LM108 is guaranteed from b55 Cto a125 C the LM208 from b25 Cto a85 C and the LM308 from 0 Cto a 70 C Features Y Maximum input bias current of 30 nA over temperature Y Offset current less than 400 pA over temperature Y Supply current of only 300 mA even in saturation Y Guaranteed drift characteristics Compensation Circuits Standard Compensation Circuit Cf t R1 CO R1 a R2 CO e 30 pF TLH7758 – 1 Bandwidth and slew rate are proportional to 1Cf Alternate Frequency Compensation TLH7758 – 2 Improves rejection of power supply noise by a factor of ten Bandwidth and slew rate are proportional to 1Cs Feedforward Compensation TLH7758 – 3 C1995 National Semiconductor Corporation RRD-B30M115Printed in U S A |
Nº de peça semelhante - LM208 |
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Descrição semelhante - LM208 |
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