MC68HC908MR8 Datasheet, PDF (349/372 Pages) Motorola, Inc – Microcontrollers

Electrical Specifications
Analog-to-Digital Converter (ADC) Characteristics
21.13 Analog-to-Digital Converter (ADC) Characteristics
Characteristic
A/D reference 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
Absolute accuracy
(8-bit truncation mode)
Quantization error
(8-bit truncation mode)
Symbol Min Typ
Max
Unit
Notes
V_REFH
4.5
—
5.5
V
—
V_ADIN
0
—
V_REFH
V
V_ADIN <= V_REFH
B_AD
10
—
10
Bits
—
A_AD
—
—
4
Counts
Includes
quantization
f_ADIC
500 k
—
1M
Hz
t_AIC = 1/f_ADIC
R_AD
V_SSA
—
V_REFH
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
V_ADIN = V_SSA
F_ADI
3FD
—
3FF
Hex
V_ADIN = V_REFH
C_ADI
—
—
30
pF
Not
characterized
A_AD
—
—
±1
Counts
Includes
quantization
—
—
—
+7/8
–1/8
LSB
—
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
Electrical Specifications
Technical Data
349