MC68HC908EY16 Datasheet, PDF (247/278 Pages) Motorola, Inc – Microcontrollers

Analog-to-Digital Converter (ADC) Characteristics
20.10 Analog-to-Digital Converter (ADC) Characteristics
Characteristic
Supply voltage
Input voltages
Resolution
Absolute accuracy
ADC internal clock
Conversion range
Power-up time
Conversion time
Sample time
Monotonicity
Zero input reading
Full-scale reading
Input capacitance
V_REFH/V_REFL current
Absolute accuracy
(8-bit truncated mode)
Zero input reading
(8-bit truncated mode)
Full-scale reading
(8-bit truncated mode)
Quantization error
(8-bit truncated mode)
Symbol
Min
Typ
Max
Unit
Notes
V_DDA
4.5
—
5.5
V_DDA should be tied to
V
the same potential as
V_DD via separate traces
V_ADIN
0
—
V_DDA
V
V_ADIN <= V_DDA
B_AD
10
—
10
Bits
A_AD
–4
—
+4
LSB
Includes quantization
f_ADIC
500 k
—
1.048 M
Hz
t_AIC = 1/f_ADIC
R_AD
V_SSA
—
V_DDA
V
t_ADPU
16
—
—
t_AIC cycles
t_ADC
16
—
17
t_AIC cycles
t_ADS
5
—
—
t_AIC cycles
M_AD
Guaranteed
Z_ADI
000
—
003
Hex
F_ADI
3FC
—
3FF
Hex
C_ADI
—
—
30
pF
Not tested
I_VREF
—
1.6
—
mA
A_AD
–1
—
+1
LSB
Includes quantization
Z_ADI
00
—
01
Hex
F_ADI
FE
—
FF
Hex
—
—
—
+7/8
–1/8
LSB
MC68HC908EY16 • MC68HC908EY8 Data Sheet, Rev. 10
Freescale Semiconductor
247