K40P100M100SF2V2 Datasheet, PDF (36/70 Pages) Freescale Semiconductor, Inc – K40 Sub-Family

Peripheral operating requirements and behaviors
Z_AS
R_AS
SIMPLIFIED
INPUT PIN EQUIVALENT
CIRCUIT
Pad
leakage
due to
input
protection
V_ADIN
V_AS
C_AS
Z_ADIN
SIMPLIFIED
CHANNEL SELECT
CIRCUIT
R_ADIN
ADC SAR
ENGINE
INPUT PIN
INPUT PIN
INPUT PIN
R_ADIN
R_ADIN
R_ADIN
C_ADIN
Figure 10. ADC input impedance equivalency diagram
6.6.1.2 16-bit ADC electrical characteristics
Table 26. 16-bit ADC characteristics (V_REFH = V_DDA, V_REFL = V_SSA)
Symbol Description
I_{DDA_ADC}
f_ADACK
Supply current
ADC
asynchronous
clock source
Conditions¹
• ADLPC=1, ADHSC=0
• ADLPC=1, ADHSC=1
• ADLPC=0, ADHSC=0
• ADLPC=0, ADHSC=1
Min.
0.215
1.2
3.0
2.4
4.4
Typ.²
—
2.4
4.0
5.2
6.2
Max.
1.7
3.9
7.3
6.1
9.5
Unit
mA
MHz
MHz
MHz
MHz
TUE
Sample Time
Total unadjusted
error
See Reference Manual chapter for sample times
• 12 bit modes
—
±4
• <12 bit modes
—
±1.4
±6.8
±2.1
LSB⁴
DNL
Differential non-
linearity
INL Integral non-
linearity
E_FS Full-scale error
• 12 bit modes
• <12 bit modes
• 12 bit modes
• <12 bit modes
• 12 bit modes
• <12 bit modes
—
±0.7 -1.1 to +1.9 _LSB⁴
-0.3 to 0.5
—
±0.2
—
±1.0 -2.7 to +1.9 _LSB⁴
-0.7 to +0.5
—
±0.5
—
-4
-5.4
LSB⁴
—
-1.4
-1.8
Table continues on the next page...
Notes
3
t_ADACK = 1/
f_ADACK
5
5
5
V_ADIN =
V_DDA
5
K40 Sub-Family Data Sheet, Rev. 1, 6/2012.
36
Preliminary
Freescale Semiconductor, Inc.
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