mc68hc908as60 Freescale Semiconductor, Inc, mc68hc908as60 Datasheet - Page 424

• Manufacturer Part Number: mc68hc908as60
• Description: Mc68hc908as60 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Electrical Specifications
24.7 ADC Characteristics
Technical Data
Resolution
Absolute accuracy
Conversion range (Note 1)
Power-up time
Input leakage (Note 3)
Conversion time
Monotonicity
Zero input reading
Full-scale reading
Sample time (Note 2)
Input capacitance
ADC internal clock
Analog input voltage
Notes:
(V
Ports B and D
1. V
2. Source impedances greater than 10 k
3. The external system error caused by input leakage current is approximately equal to the product of R source and input
REFL
current.
DD
= 5.0 Vdc
= 0 V, V
DDA
10%, V
/V
Characteristic
DDAREF
SS
= 0 Vdc, V
Freescale Semiconductor, Inc.
= V
For More Information On This Product,
REFH
DDA
= 5 V
adversely affect internal RC charging time during input sampling.
/V
Go to: www.freescale.com
Electrical Specifications
DDAREF
10%)
= 5.0 Vdc
10%, V
V
V
500 k
Min
REFL
REFL
FE
–1
16
—
16
00
—
8
5
SSA
= 0 Vdc, V
1.048 M
V
V
Inherent within total error
Max
REFH
REFH
FF
+1
17
17
01
—
8
8
1
REFH
MC68HC908AS60 — Rev. 1.0
cycles
cycles
clock
clock
ADC
ADC
Unit
LSB
Hex
Hex
Bits
= 5.0 Vdc
Hz
pF
V
V
A
s
sampling time
V
quantization
V
Comments
V
Conversion
Tested only
time period
10%
REFL
Not tested
In
at 1 MHz
In
Includes
Includes
= V
= V
= V
REFH
REFL
SSA