Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

ADC internal Reference voltage

Status
Not open for further replies.
S

sushl

Junior Member level 2
Joined
Aug 22, 2018
Messages
24
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
238
Hi all,

we are using ADS1015 ADC its 12 bit adc (Vadc/Vref)*4095= adc digital value.

for analog inputs we can give a voltage anywhere between
±0.256 ±6.144 V.

not able to do find the value of Vref.

how to find the typical value of Vref so we can substitute in the above formula and correlate the results?

regards Sushl
 

Hi,

(Vadc/Vref)*4095= adc digital value.
Click to expand...
This is wrong. Read the datasheet.

not able to do find the value of Vref.
Click to expand...
No need to know VRef.

Read sections 8.3.3 and 8.5.4. It tells you all you need to know about
* (full scale) input range
* and data format

Klaus
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top