MC68HC908JG16FA MOTOROLA [Motorola, Inc], MC68HC908JG16FA Datasheet - Page 317

• Manufacturer Part Number: MC68HC908JG16FA
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

20.13 ADC Electrical Characteristics
MC68HC908JG16
MOTOROLA
Notes:
Supply voltage
ADC reference voltage high
ADC reference voltage low
Input voltages
Resolution
Absolute accuracy
ADC internal clock
Conversion range
Power-up time
Conversion time
Sample time
Zero input reading
Full-scale reading
Input capacitance
Input leakage
1. V
2. Source impedances greater than 10 k 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
Port A
current.
DD
Characteristic
= 4.0 to 5.5 Vdc, V
(2)
(4)
—
(3)
(3)
Rev. 1.0
(1)
SS
= 0 Vdc, T
Freescale Semiconductor, Inc.
For More Information On This Product,
Symbol
V
V
V
t
V
f
C
ADPU
t
t
Z
F
B
A
R
ADIC
REFH
A
REFL
ADC
ADS
ADIN
DDA
—
ADI
ADI
ADI
AD
AD
AD
= T
L
to T
Go to: www.freescale.com
Electrical Specifications
H
, unless otherwise noted.
V
V
V
0.75
Min
4.0
REFL
REFL
FE
16
16
00
—
—
—
—
SSA
8
5
V
V
V
1.572
Max
REGA
REFH
REFH
5.5
FF
17
01
—
—
—
8
8
1
1
cycles
cycles
cycles
MHz
HEX
HEX
Unit
LSB
Bits
t
t
t
pF
AIC
AIC
AIC
V
V
V
V
V
A
ADC Electrical Characteristics
Electrical Specifications
V
to the same potential
as V
traces.
Includes quantization
t
tested only at 1.5 MHz
Not tested
AIC
DDA
= 1/f
DD
Comments
should be tied
via separate
Technical Data
ADIC
,
317