Peripheral operating requirements and behaviors
Table 24. 16-bit ADC characteristics (VREFH = VDDA, VREFL = VSSA) (continued)
Conditions1
• ADLPC=1, ADHSC=0
Typ.2
2.4
Symbol Description
Min.
1.2
3.0
2.4
4.4
Max.
3.9
Unit
Notes
ADC
asynchronous
tADACK = 1/
fADACK
MHz
MHz
MHz
MHz
• ADLPC=1, ADHSC=1
• ADLPC=0, ADHSC=0
• ADLPC=0, ADHSC=1
4.0
7.3
clock source
fADACK
5.2
6.1
6.2
9.5
Sample Time
See Reference Manual chapter for sample times
LSB4
LSB4
TUE
DNL
Total unadjusted
error
• 12 bit modes
• <12 bit modes
—
—
4
6.8
2.1
5
5
1.4
Differential non-
linearity
• 12 bit modes
—
0.7
-1.1 to
+1.9
-0.3 to 0.5
• <12 bit modes
• 12 bit modes
—
—
0.2
1.0
LSB4
INL
EFS
Integral non-
linearity
-2.7 to
+1.9
5
-0.7 to
+0.5
• <12 bit modes
—
0.5
LSB4
LSB4
Full-scale error
• 12 bit modes
• <12 bit modes
—
—
-4
-5.4
-1.8
VADIN =
VDDA
-1.4
5
EQ
Quantization
error
• 16 bit modes
• ≤13 bit modes
—
—
-1 to 0
—
—
0.5
ENOB
Effective number 16 bit differential mode
6
of bits
• Avg=32
12.8
11.9
14.5
13.8
—
—
bits
bits
• Avg=4
16 bit single-ended mode
• Avg=32
12.2
11.4
13.9
13.1
—
—
bits
bits
• Avg=4
Signal-to-noise
plus distortion
See ENOB
SINAD
THD
6.02 × ENOB + 1.76
dB
Total harmonic
distortion
16 bit differential mode
• Avg=32
7
—
—
–94
-85
—
—
dB
dB
16 bit single-ended mode
• Avg=32
Table continues on the next page...
K10 Sub-Family Data Sheet, Rev. 4 5/2012.
38
Freescale Semiconductor, Inc.
FREESCALE [ Freescale ]
