Datasheet

MC9S08QB8 Series MCU Data Sheet, Rev. 3
Electrical Characteristics
Freescale Semiconductor22
Table 16. 12-Bit ADC Characteristics (V
REFH
= V
DDA
, V
REFL
= V
SSA
)
Characteristic Conditions C Symbol Min Typical
1
Max Unit Comment
Supply Current
ADLPC=1
ADLSMP=1
ADCO=1
TI
DDAD
— 120 — μA
Supply Current
ADLPC=1
ADLSMP=0
ADCO=1
TI
DDAD
— 202 — μA
Supply Current
ADLPC=0
ADLSMP=1
ADCO=1
TI
DDAD
— 288 — μA
Supply Current
ADLPC=0
ADLSMP=0
ADCO=1
TI
DDAD
—0.532 1 mA
Supply Current Stop, Reset, Module Off T I
DDAD
— 0.007 0.8 μA
ADC
Asynchronous
Clock Source
High Speed (ADLPC = 0)
Pf
ADACK
23.35
MHz
t
ADACK
=
1/f
ADACK
Low Power (ADLPC = 1) 1.25 2 3.3
Conversion
Time (Including
sample time)
Short Sample
(ADLSMP = 0)
Tt
ADC
—20—
ADCK
cycles
See reference
manual for
conversion
time variances
Long Sample
(ADLSMP = 1)
—40—
Sample Time
Short Sample
(ADLSMP = 0)
Tt
ADS
—3.5—
ADCK
cycles
Long Sample
(ADLSMP = 1)
— 23.5 —
Tot al
Unadjusted
Error
12-bit mode T
E
TUE
— ±3.0 —
LSB
2
For 28-pin and
24-pin
packages only.
Includes
quantization
10-bit mode P — ±1—
8-bit mode T — ±0.5 —
Tot al
Unadjusted
Error
10-bit mode P
E
TUE
— ±1.5 —
LSB
2
For 16-pin
package only.
Includes
quantization
8-bit mode T — ±0.7 —
Differential
Non-Linearity
12-bit mode T
DNL
— ±1.75 —
LSB
2
10-bit mode P — ±0.5 —
8-bit mode
T
— ±0.3 —
Monotonicity and No-Missing-Codes guaranteed