Electrical Characteristics
Table 16. 12-bit ADC Characteristics (V
= V
, V
= V
) (continued)
SSAD
REFH
DDAD REFL
C
Characteristic
Conditions
Symbol
Min.
Typical1
Max.
Unit
Comment
Conversion
Time(Including (ADLSMP=0)
sample time)
Short Sample
See ADC
chapter in the
QE8 Reference
Manual for
conversion time
variances
P
—
—
—
—
20
—
ADCK
cycles
tADC
Long Sample
C
P
C
40
3.5
—
—
—
(ADLSMP=1)
Short Sample
(ADLSMP=0)
Sample Time
ADCK
cycles
tADS
Long Sample
(ADLSMP=1)
23.5
T
P
Total
Unadjusted
Error
(28-pin and
32-pin
packages)
12 bit mode
10 bit mode
—
—
±3.0
±1
—
For 28-pin and
32-pin packages
only.
±2.5
ETUE
LSB2
Includes
quantization
T
8 bit mode
—
±0.5
±1.0
T
P
Total
Unadjusted
Error
(16-pin and
20-pin
package)
12 bit mode
10 bit mode
—
—
±4.0
±1.5
—
For 16-pin and
20-pin packages
only.
±3.5
ETUE
LSB2
Includes
quantization
T
8 bit mode
—
±0.7
±1.5
T
P
T
T
C
T
T
P
T
T
P
T
12 bit mode
10 bit mode3
8 bit mode3
12 bit mode
10 bit mode
8 bit mode
12 bit mode
10 bit mode
8 bit mode
12 bit mode
10 bit mode
8 bit mode
12 bit mode
10 bit mode
8 bit mode
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
±1.75
±0.5
±0.3
±1.5
±0.5
±0.3
±1.5
±0.5
±0.5
±1.0
±0.5
±0.5
–1 to 0
—
—
±1.0
±0.5
—
Differential
Non-Linearity
DNL
INL
EZS
EFS
EQ
LSB2
LSB2
LSB2
LSB2
LSB2
—
Integral
Non-Linearity
±1.0
±0.5
—
—
Zero-Scale
Error
±1.5
±0.5
—
VADIN = VSSAD
VADIN = VDDAD
—
Full-Scale
Error
±1
±0.5
—
Quantization
Error
D
±0.5
±0.5
—
MC9S08QE8 Series, Rev. 3
26
Preliminary
Freescale Semiconductor
Subject to Change Without Notice
FREESCALE [ Freescale ]
