10 Bit D-A Converter

Summary This document is an electrical schematic for a 10-bit Digital-to-Analog (D-A) converter manufactured by Digital Equipment Corporation. The circuit utilizes a series of input stages (labeled AD through BJ) feeding into a diode-resistor ladder network, which then connects to an output amplifier stage comprised of transistors Q22, Q23, and Q26. The schematic specifies component values for resistors and capacitors, identifies transistor models, and notes that specific parts (Q16 and Q20) are selected for precision. It also includes standard technical notations regarding component tolerances and power supply requirements.