mc68hc908jl3mp Freescale Semiconductor, Inc, mc68hc908jl3mp Datasheet - Page 201

• Manufacturer Part Number: mc68hc908jl3mp
• Description: Hcmos Microcontroller Unit
• Manufacturer: Freescale Semiconductor, Inc

18.13 ADC Characteristics
MC68H(R)C908JL3
MOTOROLA
NOTES:
Supply voltage
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. Source impedances greater than 10 k adversely affect internal RC charging time during input sampling.
2. Zero-input/full-scale reading requires sufficient decoupling measures for accurate conversions.
3. The external system error caused by input leakage current is approximately equal to the product of R source and input
Port B/port D
current.
Characteristic
(1)
(3)
(3)
(2)
—
Rev. 1.0
Symbol
V
Table 18-10. ADC Characteristics
V
t
f
C
ADPU
t
t
Z
F
B
A
R
DDAD
ADIC
ADIN
ADC
ADS
—
ADI
ADI
ADI
AD
AD
AD
Electrical Specifications
(V
DD
Min
V
V
2.7
0.5
FE
16
16
00
—
—
0.5
8
5
SS
SS
min)
(V
DD
(20) 8
1.048
Max
V
V
5.5
FF
17
—
01
1.5
DD
8
DD
max)
1
t
t
t
AIC
AIC
AIC
MHz
Unit
LSB
Hex
Hex
Bits
pF
cycles
cycles
cycles
V
V
V
A
Electrical Specifications
Includes quantization
t
AIC
ADC Characteristics
only at 1 MHz
= 1/f
Comments
Not tested
V
V
IN
IN
Technical Data
ADIC
= V
= V
DD
SS
, tested
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