: You will have to use an A/D chip with higher resolution: A 10 bit chip will provide a resolution of 2^10 = 1024, a 12 bit chip 2^12 = 4096 etc.
:
:
Oops!
You wanted a resolution of 10000!
You will have to use a chip with at least 15 bits for that resolution. A 16 bit chip is probably more common and provide a maximum resolution of 2^16 = 65536. The circuitry for high resolution A/D converters is very very critical to prevent even small variations in temperature from causing large inaccuracies in the conversion process.
: hi there! : thanx for answers. : but i will use max res. A/D is 10 bit. : i know 10bit=1024 : 12bit=4096 : and other A/Ds 15,16 ... 23bit : A/D resolution is increasing some methods. : of course : for 10bit A/D : si s=sample i=indice : s1=650 s2=652 s3=651 s4=649 .... s50=654 : average= (s1+s2+...+s50)/25 : at this point A/D resolution increased 2times : : *i look for more stable code will make this operation. : : sorry for bad english : thanx for all! : : you can also increase ad resolution: - using some A/D channel and a number of external component(op-amp) - using an op-amp with a digital control of amp bye
Comments
: My question is simple:
: How am i increse A/D Resolution?
: for example;
: TLC549 is a 8 bit serial A/D;
: min value=0
: max value=255
:
: how am i make max value=9999 ?
: (to increse one bye one)
:
: bye!
:
You will have to use an A/D chip with higher resolution: A 10 bit chip will provide a resolution of 2^10 = 1024, a 12 bit chip 2^12 = 4096 etc.
: : My question is simple:
: : How am i increse A/D Resolution?
: : for example;
: : TLC549 is a 8 bit serial A/D;
: : min value=0
: : max value=255
: :
: : how am i make max value=9999 ?
: : (to increse one bye one)
: :
: : bye!
: :
:
: You will have to use an A/D chip with higher resolution: A 10 bit chip will provide a resolution of 2^10 = 1024, a 12 bit chip 2^12 = 4096 etc.
:
:
Oops!
You wanted a resolution of 10000!
You will have to use a chip with at least 15 bits for that resolution. A 16 bit chip is probably more common and provide a maximum resolution of 2^16 = 65536. The circuitry for high resolution A/D converters is very very critical to prevent even small variations in temperature from causing large inaccuracies in the conversion process.
thanx for answers.
but i will use max res. A/D is 10 bit.
i know 10bit=1024
12bit=4096
and other A/Ds 15,16 ... 23bit
A/D resolution is increasing some methods.
of course
for 10bit A/D
si s=sample i=indice
s1=650 s2=652 s3=651 s4=649 .... s50=654
average= (s1+s2+...+s50)/25
at this point A/D resolution increased 2times
*i look for more stable code will make this operation.
sorry for bad english
thanx for all!
: thanx for answers.
: but i will use max res. A/D is 10 bit.
: i know 10bit=1024
: 12bit=4096
: and other A/Ds 15,16 ... 23bit
: A/D resolution is increasing some methods.
: of course
: for 10bit A/D
: si s=sample i=indice
: s1=650 s2=652 s3=651 s4=649 .... s50=654
: average= (s1+s2+...+s50)/25
: at this point A/D resolution increased 2times
:
: *i look for more stable code will make this operation.
:
: sorry for bad english
: thanx for all!
:
:
you can also increase ad resolution:
- using some A/D channel and a number of external component(op-amp)
- using an op-amp with a digital control of amp
bye