K20P144M100SF2 Datasheet, PDF (39/67 Pages) Freescale Semiconductor, Inc – K20 Sub-Family Data Sheet

Peripheral operating requirements and behaviors
Z_AS
R_AS
SIMPLIFIED
INPUT PIN EQUIVALENT
CIRCUIT
Pad
leakage
due to
input
protection
Z_ADIN
SIMPLIFIED
CHANNEL SELECT
CIRCUIT
R_ADIN
ADC SAR
ENGINE
V_ADIN
V_AS
C_AS
y ^{INPUT PIN}
r _{INPUT PIN}
a _{INPUT PIN}
R_ADIN
R_ADIN
R_ADIN
C_ADIN
in ^{Figure 13. ADC input impedance equivalency diagram}
6.6.1.2 16-bit ADC electrical characteristics
lim ^{Table 24. 16-bit ADC characteristics (VREFH = VDDA, VREFL = VSSA)}
Symbol Description
Conditions¹
Min.
Typ.²
Max.
Unit
I_DDA Supply current
• ADLPC=1, ADHSC=0
—
215
—
μA
e _{• ADLPC=1, ADHSC=1}
—
340
—
μA
r_{• ADLPC=0, ADHSC=0}
—
470
—
μA
P^{• ADLPC=0, ADHSC=1}
—
610
—
μA
Notes
ADLSMP=
0
ADCO=1
Supply current
• Stop, reset, module off
—
0.01
0.8
μA
ADC asynchro‐
• ADLPC=1, ADHSC=0
TBD
2.4
TBD
MHz
t_ADACK = 1/
f_ADACK
nous clock
source
• ADLPC=1, ADHSC=1
TBD
4.0
TBD
MHz
f_ADACK
• ADLPC=0, ADHSC=0
TBD
5.2
TBD
MHz
• ADLPC=0, ADHSC=1
TBD
6.2
TBD
MHz
Sample Time
See Reference Manual chapter for sample times
Conversion Time See Reference Manual chapter for conversion times
Table continues on the next page...
K20 Sub-Family Data Sheet Data Sheet, Rev. 1, 11/2010.
Freescale Semiconductor, Inc.
Preliminary
39