mc9s08ac32 Freescale Semiconductor, Inc, mc9s08ac32 Datasheet - Page 160

• Manufacturer Part Number: mc9s08ac32
• Description: Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 9 Analog-to-Digital Converter (S08ADC10V1)
converter yields the lower code (and vice-versa). However, even very small amounts of system noise can
cause the converter to be indeterminate (between two codes) for a range of input voltages around the
transition voltage. This range is normally around 1/2
and will increase with noise. This error may be
LSB
reduced by repeatedly sampling the input and averaging the result. Additionally the techniques discussed
in
Section 9.7.2.3
will reduce this error.
Non-monotonicity is defined as when, except for code jitter, the converter converts to a lower code for a
higher input voltage. Missing codes are those values which are never converted for any input value.
In 8-bit or 10-bit mode, the ADC is guaranteed to be monotonic and to have no missing codes.
MC9S08AC60 Series Data Sheet, Rev. 2
160
Freescale Semiconductor