Parts per million / LSB

perhaps you could tell us what page are refering too?

martin

Its page 207 or 12- 15.

John

Hi,

I have one more question that in chapter 4, the note disscuss how to design a opamp system using the four different combination of linear equation

Y = mX + B,

The author suggests the linear equation, defines the input and output voltages and then draws the circuit. My questions are

1. How did he translate the four linear equations into schematic?
2. The suggested schematics are the only designs or the opamp circuits could be different from the designs given in the note?

Thanks John

Is the other way around. He designed the circuits and check it with equations. But it sounds better to the professor than the schematic came from the equations.

How many ways can you build a house?

I didn't bother opening the link but....

2^12 = 4096 steps.

LSB = 1/4096 = 244 e-6 =

244 ppm

1e6/2^12 = 244.

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John Devereux

1 LSB = 1/4095 of full scale

1/4095 = 0.000244200244 = 244 ppm of full scale.

Cheers,

Phil Hobbs

1 LSB = 1/4095 of full scale

1/4095 = 0.000244200244 = 244 ppm of full scale.

Cheers,

Phil Hobbs

On Sep 2, 11:34=A0am, Brendan Gillatt

Fencepost error! Not that it matters muich, but the range of a 12-bit converter is 0 to 4095, and

1/4095 =3D> 244.200 parts per million of the range 1/4096 =3D> 244.141 parts per million

Which happens to be 4096 discrete values.

--
Paul Hovnanian     mailto:Paul@Hovnanian.com
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In theory, practice and theory are the same, but in practice they 
are different -- Larry McVoy