Analogue digital converter made from integrated transistor circuits - has capacitor input to comparator and difference amplifier with flip flop and switches

摘要

Analogue digital converter with an input capacitor bridged by a resistor. One end (1) of the capacitor (C) is connected to one input terminal (6) of a comparator (K) amplifier and the other end (2) to one input terminal (8) of a difference amplifier (V). The output of the comparator is connected to a flip-flop circuit (F) which is also fed with a timing pulse (7) to synchronise the control of switching transistors (T1, 2, 3, 4). One of these transistor is connected to the same terminal of the input capacitor as the comparator. The output of the flip-flop will represent a digitalised form of the input.