Re: [beagleboard] Input range digital analog converter. Is the 1.8V adjustable?

2017-09-15 Thread John Syne 
Geralds answer wasn’t complete. It is true that you cannot exceed the 1v8 input 
range of the ADC, but you can add a circuit before the ADC input that will 
convert the range from 0 to 5 volts -> 0 to 1v8. I would recommend that you ask 
a hardware engineer to assist you with this task as it is difficult to get this 
right if you have no experience in this area. Search Google for “ADC range 
opamp” for circuit examples. 

Regards,
John




> On Sep 13, 2017, at 8:53 AM, Ricardo Andres Gomez 
>  wrote:
> 
> I want to connect an analog output sensor from 0 to 5 volts. The adc by 
> specifications has a range of 0 1.8V. Is it possible to change this range?
> 
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RE: [beagleboard] Input range digital analog converter. Is the 1.8V adjustable?

2017-09-13 Thread Gerald Coley 
No. It is fixed at 1.8V.

Gerald


From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On 
Behalf Of Ricardo Andres Gomez
Sent: Wednesday, September 13, 2017 10:54 AM
To: BeagleBoard 
Subject: [beagleboard] Input range digital analog converter. Is the 1.8V 
adjustable?

I want to connect an analog output sensor from 0 to 5 volts. The adc by 
specifications has a range of 0 1.8V. Is it possible to change this range?
--
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