LH0091 Datasheet | National Semiconductor

Description The LH0091 rms to dc converter generates a dc output equal to the rms value of any input per the transfer function EOUT(DC) e Features 0 1 T EIN2(t) dt T 0 The device provides rms conversion to an accuracy of 0 1% of reading using the external trim procedure It is possible to trim for maximum accuracy (0 5 m V g 0 05% typ) for decade ranges i e 10 m V x 100 m V 0 7V x 7V etc Low cost True rms conversion 0 5% of reading accuracy untrimmed 0 05% of reading accuracy with external trim Minimum ponent count Input voltage to g 15V peak for VS e g 15V Unmitted amplifier for filtering gain or high crest factor configuration Military or mercial temperature range Block and Connection Diagrams Dual-In-Line Package Dual-In-Line Package Order Number LH0091CD See Package D16D TL H 5694 - 1 Simplified Schematic TL H 5694 - 2 Note Dotted lines denote external connections C1995 National Semiconductor Corporation TL H 5694 RRD-B30M115 Printed in U S A Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Input Voltage Output Short Circuit Duration g 22V g 15V peak Operating Temperature Range LH0091C Storage Temperature Range LH0091C Lead Temp (Soldering 10 seconds) TMIN b 25 C TMAX 85 C b 25 C to a 85 C 260 C Continuous Electrical Characteristics VS e g 15V Transfer Function e EO(DC) e Parameter ACCURACY (See Definition of Terms) Total Unadjusted Error Total Adjusted Error Total Unadjusted Error vs Temperature Total Unadjusted Error vs Supply Voltage AC PERFORMANCE Frequency for Specified Adjusted Error TA e 25 C unless otherwise noted 0T E 1 T 2 IN (t) dt Conditions Min Typ...