Part # LM208 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM108 LM208 LM308 Operational Amplifiers


Part Details:

LM108LM208LM308 December 1994 LM108 LM208 LM308 Operational Amplifiers General DescriptionThe LM108 series are precision operational amplifiers hav- introducing less error than devices like the 709 with 10 kX ing specifications a factor of ten better than FET amplifiers sources Integrators with drifts less than 500 mV sec and over a b55 C to a125 C temperature range analog time delays in excess of one hour can be made us- The devices operate with supply voltages from ing capacitors no larger than 1 mF g 2V to g 20V and have sufficient supply rejection to use unregulat- The LM108 is guaranteed from b55 C to a125 C the Operational ed supplies Although the circuit is interchangeable with and LM208 from b25 C to a85 C and the LM308 from 0 C to uses the same compensation as the LM101A an alternate a 70 C compensation scheme can be used to make it particularlyinsensitive to power supply noise and to make supply by- Features pass capacitors unnecessary Y Maximum input bias current of 3 0 nA over temperature The low current error of the LM108 series makes possible Y Offset current less than 400 pA over temperature many designs that are not practical with conventional ampli- Y Supply current of only 300 mA even in saturation fiers In fact it operates from 10 MX source resistances Y Guaranteed drift characteristics Amplifiers Compensation Circuits Standard Compensation Circuit Alternate Frequency Compensation R1 CO Cf t R1 a R2CO e 30 pF TL H 7758 ­ 1 TL H 7758 ­ 2 Bandwidth and slew rate are proportional to 1 Cf Improves rejection of power supply noise by a factor of ten Bandwidth and slew rate are proportional to 1 Cs Feedforward Compensation TL H 7758 ­ 3 C1995 National Semiconductor Corporation TL H 7758 RRD-B30M115 Printed in U S A Absolute Maximum RatingsIf Military Aerospace specified devices are required please contact the National Semiconductor Sales OfficeDistributors for availability and specifications(Note 5) LM108 LM208 LM308 Supply Voltage g 20V


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LM208.pdf Datasheet