Datasheet

ADC0808-N, ADC0809-N
SNAS535H –OCTOBER 1999–REVISED MARCH 2013 www.ti.com
Figure 14. Typical Reference and Supply Circuit
R
A
=R
B
*Ratiometric transducers
Figure 15. Symmetrically Centered Reference
CONVERTER EQUATIONS
The transition between adjacent codes N and N+1 is given by:
(2)
The center of an output code N is given by:
(3)
The output code N for an arbitrary input are the integers within the range:
Where:
• V
IN
=Voltage at comparator input
• V
REF(+)
=Voltage at Ref(+)
• V
REF(−)
=Voltage at Ref(−)
• V
TUE
=Total unadjusted error voltage (typically
• V
REF(+)
÷512) (4)
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