Electrical Characteristics
Table A-16. ATD Conversion Performance 5V range
Conditions are shown in Table A-4. unless otherwise noted. VREF = VRH - VRL = 5.12V. fATDCLK = 8.0MHz
The values are tested to be valid with no PortAD output drivers switching simultaneous with conversions.
Num
C
Rating(1)
Symbol
Min
Typ
Max
Unit
1
2
3
4
P Resolution
12-Bit
12-Bit
12-Bit
12-Bit
LSB
DNL
INL
AE
1.25
2
mV
P Differential Nonlinearity
P Integral Nonlinearity
P Absolute Error(2)
-4
-5
-7
4
5
7
counts
counts
counts
2.5
4
5
6
7
8
9
C Resolution
10-Bit
10-Bit
10-Bit
10-Bit
8-Bit
LSB
DNL
INL
AE
5
mV
C Differential Nonlinearity
C Integral Nonlinearity
C Absolute Error2.
C Resolution
-1
-2
-3
0.5
1
1
2
3
counts
counts
counts
mV
2
LSB
DNL
INL
AE
20
0.3
0.5
1
10 C Differential Nonlinearity
11 C Integral Nonlinearity
12 C Absolute Error2.
8-Bit
-0.5
-1
0.5
1
counts
counts
counts
8-Bit
8-Bit
-1.5
1.5
1. The 8-bit and 10-bit mode operation is structurally tested in production test. Absolute values are tested in 12-bit mode.
2. These values include the quantization error which is inherently 1/2 count for any A/D converter.
Table A-17. ATD Conversion Performance 3.3V range
Conditions are shown in Table A-4. unless otherwise noted. VREF = VRH - VRL = 3.3V. fATDCLK = 8.0MHz
The values are tested to be valid with no PortAD output drivers switching simultaneous with conversions.
Num
C
Rating(1)
Symbol
Min
Typ
Max
Unit
1
2
3
4
5
6
7
8
9
P Resolution
12-Bit
12-Bit
12-Bit
12-Bit
10-Bit
10-Bit
10-Bit
10-Bit
8-Bit
LSB
DNL
INL
AE
0.80
3
mV
P Differential Nonlinearity
P Integral Nonlinearity
P Absolute Error(2)
C Resolution
-6
-7
-8
6
7
8
counts
counts
counts
mV
3
4
LSB
DNL
INL
AE
3.22
1
C Differential Nonlinearity
C Integral Nonlinearity
C Absolute Error2.
C Resolution
-1.5
-2
1.5
2
counts
counts
counts
mV
1
-3
2
3
LSB
DNL
INL
AE
12.89
0.3
0.5
1
10 C Differential Nonlinearity
11 C Integral Nonlinearity
12 C Absolute Error2.
8-Bit
-0.5
-1
0.5
1
counts
counts
counts
8-Bit
8-Bit
-1.5
1.5
1. The 8-bit and 10-bit mode operation is structurally tested in production test. Absolute values are tested in 12-bit mode.
2. These values include the quantization error which is inherently 1/2 count for any A/D converter.
S12P-Family Reference Manual, Rev. 1.13
Freescale Semiconductor
517
FREESCALE [ Freescale ]
