Peripheral operating requirements and behaviors
SIMPLIFIED
INPUT PIN EQUIVALENT
CIRCUIT
zADIN
SIMPLIFIED
CHANNEL SELECT
CIRCUIT
Pad
Z
AS
leakage
due to
input
ADC SAR
ENGINE
R AS
R ADIN
protection
vADIN
C AS
vAS
R ADIN
R ADIN
R ADIN
INPUT PIN
INPUT PIN
INPUT PIN
C ADIN
Figure 16. ADC input impedance equivalency diagram
Table 13. 12-bit ADC characteristics (VREFH = VDDA, VREFL = VSSA
)
Characteristic
Supply current
ADLPC = 1
Conditions
C
Symb
Min
Typ1
Max
Unit
T
IDDA
—
133
—
µA
ADLSMP = 1
ADCO = 1
Supply current
ADLPC = 1
T
T
T
IDDA
—
—
—
218
327
582
—
—
µA
µA
µA
ADLSMP = 0
ADCO = 1
Supply current
ADLPC = 0
IDDA
ADLSMP = 1
ADCO = 1
Supply current
ADLPC = 0
IDDAD
990
ADLSMP = 0
ADCO = 1
Supply current
Stop, reset, module
off
T
P
IDDA
—
2
0.011
3.3
1
5
µA
ADC asynchronous High speed (ADLPC
clock source = 0)
fADACK
MHz
Table continues on the next page...
KE02 Sub-Family Data Sheet, Rev3, 07/2013.
Freescale Semiconductor, Inc.
25
FREESCALE [ Freescale ]
