Datasheet

4. To use the maximum ADC conversion clock frequency, CFG2[ADHSC] must be set and CFG1[ADLPC] must be clear.
5. For guidelines and examples of conversion rate calculation, download the ADC calculator tool.
RAS
VAS
CAS
ZAS
VADIN
ZADIN
RADIN
RADIN
RADIN
RADIN
CADIN
Pad
leakage
due to
input
protection
INPUT PIN
INPUT PIN
INPUT PIN
SIMPLIFIED
INPUT PIN EQUIVALENT
CIRCUIT
SIMPLIFIED
CHANNEL SELECT
CIRCUIT
ADC SAR
ENGINE
Figure 29. ADC input impedance equivalency diagram
5.4.5.1.2
16-bit ADC electrical characteristics
Table 72. 16-bit ADC characteristics (V
REFH
= V
DDA
, V
REFL
= V
SSA
)
Symbol Description Conditions
1
Min. Typ.
2
Max. Unit Notes
I
DDA_ADC
Supply current 0.215 — 1.7 mA 3
f
ADACK
ADC asynchronous
clock source
• ADLPC = 1, ADHSC = 0
• ADLPC = 1, ADHSC = 1
• ADLPC = 0, ADHSC = 0
• ADLPC = 0, ADHSC = 1
1.2
2.4
3.0
4.4
2.4
4.0
5.2
6.2
3.9
6.1
7.3
9.5
MHz
MHz
MHz
MHz
t
ADACK
= 1/
f
ADACK
Sample Time See Reference Manual chapter for sample times
TUE Total unadjusted
error
• 12-bit modes
• <12-bit modes
—
—
±4
±1.4
±6.8
±2.1
LSB
4
5
DNL Differential non-
linearity
• 12-bit modes
• <12-bit modes
—
—
±0.7
±0.2
–1.1 to
+1.9
–0.3 to
0.5
LSB
4
5
Table continues on the next page...
Electrical characteristics
Kinetis KL82 Microcontroller, Rev. 3, 08/2016
103
NXP Semiconductors