I have a technical question asking how to use this IC in my application.
I am converting 0 to 5Vdc from a potentiometer to a 12-bit digital representation using a 12-bit parallel output ADC IC. This IC is an LTC1273BCN. :I have attached the datasheet in this link.
I am reading these 12 bits with 12 digital inputs on a FPGA. The IC is powered with 5Vdc.
But I don't understand some pin connections on the IC. Below is my understanding of the IC:
Pin 24: +5Vdc supply
Pin 23: Ground
Pin 1: Analog input from potentiometer
Pin 3: Ground from potentiometer supply
Pins 4-11 and 13-16: ADC output 12-bits
What are the rest of the pins used for (pins 2, 19, 20, 21 and 22)?
How are these used in the ADC process? I would like the ADC chip to continuously convert the analog output without being told to do so by the FPGA. Or is this how the IC is designed to function?
Thanks