MC68HC908GT16_07 FREESCALE [Freescale Semiconductor, Inc], MC68HC908GT16_07 Datasheet - Page 288

• Manufacturer Part Number: MC68HC908GT16_07
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

MC68HC08GT16
A.9 ADC Characteristics
288
Supply voltage
Input voltages
Resolution
Absolute accuracy
ADC internal clock
Conversion range
Power-up time
ADC voltage reference high
ADC voltage reference low
Conversion time
Sample time
Zero input reading
Full-scale reading
Input capacitance
Input leakage
1. V
2. Source impedances greater than 10 kΩ adversely affect internal RC charging time during input sampling.
3. Zero-input/full-scale reading requires sufficient decoupling measures for accurate conversions.
4. The external system error caused by input leakage current is approximately equal to the product of R source and input
(V
Port B
current.
REFL
DD
= 5.0 Vdc ± 10%, V
Characteristic
= V
(2)
SSA
(4)
, V
(3)
(3)
REFH
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
(1)
= V
SS
DDA
= 0 Vdc, V
)
Symbol
V
V
V
t
DDA
V
f
t
Z
C
R
ADPU
t
F
B
A
ADIC
REFH
ADIN
REFL
ADC
ADS
DDA
—
ADI
ADI
ADI
AD
AD
AD
= 5.0 Vdc ± 10%, V
V
V
(V
SSA
SSA
V
DD
Min
2.7
0.5
REFL
FE
16
16
00
—
—
—
0
8
5
– 0.1
– 0.1
min)
SSA
V
V
(V
= 0 Vdc, V
DDA
DDA
V
DD
1.048
V
± 1.5
Max
5.5
REFH
± 1
FF
DDA
17
—
01
8
8
max)
+ 0.1
+ 0.1
REFH
t
t
t
AIC
AIC
AIC
= 5.0 Vdc ± 10%, V
MHz
Unit
LSB
Hex
Hex
Bits
pF
μA
cycles
cycles
cycles
V
V
V
V
V
V
same potential as V
t
AIC
DDA
Freescale Semiconductor
Includes quantization
V
SSA
= 1/f
separate traces.
V
V
should be tied to the
REFL
V
REFL
REFL
V
Comments
Not tested
≤ V
at 1 MHz
IN
IN
ADIC
= V
= V
ADIN
= 0
≤ V
≤ V
, tested only
REFH
REFL
REFH
REFH
≤ V
DD
DDA
via