Bio- signal (nano-source output in nano- amps) I to V converter
(nano- volts)

Amplifier output
(milli- volts)

Signal conditioned
Output
(volts)

A/D
Converter (binary)

    0
  100
  200
  300
  400
  500

      0
    100
    200
    300
    400
    500

      0
    100
    200
    300
    400
    500

   0.0
   0.4
   0.8
   1.2
   1.6
   2.0

00000000
00110011
01100110
10011001
11001100
11111111
Table 2: Signal Conditioned and ADC Output Table.