36.10 Transfer Function
A typical transfer function of the 12-bit ADC is illustrated in the following figure. The difference of the input voltages (VINH - VINL) is compared with the reference (VREFH - VREFL).
- The first code transition (A) occurs when the input voltage is (VREFH - VREFL/8192) or 0.5 LSb.
- The
0000 0000 0001
code is centered at (VREFH - VREFL/4096) or 1.0 LSb (B). - The
1000 0000 0000
code is centered at (2048 * (VREFH - VREFL)/4096) (C). - An input voltage less than (1 * (VREFH - VREFL)/8192) converts as
0000 0000 0000
(D). - An input greater than (8192 * (VREFH - VREFL)/8192) converts as
1111 1111 1111
(E).