The ADC801 is not an easy component to obtain today, but the configuration is worth reference. The circuit is from National Semiconductor's Linear Applications Handbook.
This circuit is from Motorola's Linear Interface ICs of 1993. The integrated circuit is not common...
The integrated circuit used in this 80's temperature control is not very common today. The load...
Found in a1968’s Burr Brown documentation, this shield uses an integrated circuit from that time,...