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MC9S12GRMV1 Datasheet, PDF (1219/1292 Pages) Freescale Semiconductor, Inc – MC9S12G Family Reference Manual and Data Sheet
Electrical Characteristics
Table A-29. ADC Conversion Performance 5V range, RVA enabled
Supply voltage VDDA =5.0 V, -40oC < TJ < 150oC. VRH = 5.0V. fADCCLK = 0.25 .. 2MHz 1
The values are tested to be valid with no port AD/C output drivers switching simultaneous with conversions.
Num C
Rating
Symbol
Min
Typ
Max
Unit
1 P Resolution
12-Bit
LSB
0.61
mV
2 P Differential Nonlinearity
12-Bit
DNL
±3
±4
counts
3 P Integral Nonlinearity
12-Bit
INL
4 C Absolute Error2
12-Bit
AE
±3.5
±5
counts
±8
counts
5 P internal VRH reference voltage LQFP48,
LQFP64,
LQFP100
Vvrh_int
4.495
4.505
V
KGD
Vvrh_int
4.490
4.510
V
6 P internal VRL reference voltage LQFP48,
LQFP64,
LQFP100
Vvrh_int
1.995
2.005V
V
KGD
7 C VRH_INT drift vs temperature3
Vvrl_int
Vvrh_drift
1.990
-2
2.010V
V
2
mV
8 C VRL_INT drift vs temperature
Vvrl_drift
-2.5
2.5
mV
9 C rva turn on settling time
tsettling_on
2.5
µs
10 C rva turn off settling time
tsettling_off
1
µs
1 Upper limit of fADCCLK is restricted when RVA attenuation mode is engaged.
2 These values include the quantization error which is inherently 1/2 count for any A/D converter and the error of the internally
generated reference values..
3 Please note: although different in value, drift of vrh_int and vrl_int will go in the same direction.
Freescale Semiconductor
MC9S12G Family Reference Manual, Rev.1.23
1221