datasheet · German
DIN 40700 Blatt 18: Schaltzeichen — Analogrechentechnik
DIN 40700 Sheet 18 (October 1969) is the German national standard defining graphical circuit symbols for analog computing technology. It catalogs 40 standardized symbols for linear computing elements (summing amplifiers, integrators, complementary integrators, track-and-hold units), nonlinear elements (multipliers, dividers, function generators, limiters, comparators), and hybrid (analog-digital) elements. The standard was prepared by the Electronics Standards Committee of the German Standards Institute (DNA) in alignment with IEC recommendations.
circuit symbolsgraphical standardsanalog computing elementshybrid computing