mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 276

• Manufacturer Part Number: mc68hc908bd48
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Electrical Specifications
21.9 ADC Characteristics
Data Sheet
276
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
NOTES:
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 C
current.
SS
DD
= 5.0 Vdc ± 10%, V
= 0 V, V
Characteristic
(2)
(4)
DD
(3)
= 5 V ± 10%)
(3)
SS
= 0 Vdc, T
(1)
A
= T
L
to T
Electrical Specifications
Symbol
V
V
t
f
H
C
ADPU
t
t
Z
F
B
A
R
ADIC
DDAD
ADC
ADS
ADIN
, unless otherwise noted.
—
ADI
ADI
ADI
AD
AD
AD
0.375
(V
min)
Min
V
4.5
FD
—
16
12
00
—
—
0
8
4
SS
DD
----- -
----- -
2
3
2
3
(V
max)
Max
5.5
± 2
± 1
FF
13
02
—
8
6
8
V
V
DD
DD
DD
t
t
AIC
AIC
cycles
MHz
Unit
LSB
Bits
Hex
Hex
t
pF
µA
AIC
cycles
cycles
V
V
V
MC68HC908BD48
Freescale Semiconductor
Includes quantization
t
AIC
only at 1.5 MHz
= 1/f
Comments
Not tested
ADIC
—
, tested
Rev. 2.1