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MC68HC908QC16_07 Datasheet, PDF (248/274 Pages) Freescale Semiconductor, Inc – Microcontrollers | |||
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Electrical Specifications
19.13 ADC10 Characteristics
Characteristic
Supply voltage
Supply Current
ADLPC = 1
ADLSMP = 1
ADCO = 1
Supply current
ADLPC = 1
ADLSMP = 0
ADCO = 1
Supply current
ADLPC = 0
ADLSMP = 1
ADCO = 1
Supply current
ADLPC = 0
ADLSMP = 0
ADCO = 1
ADC internal clock
Conversion time(4)
10-bit Mode
Conversion time(4)
8-bit Mode
Sample time
Input voltage
Input capacitance
Input impedance
Conditions
Absolute
VDD < 3.6 V (3.3 V Typ)
VDD < 5.5 V (5.0 V Typ)
Symbol Min Typ(1) Max
VDD
3.0
â
5.5
â
55
â
IDD(2)
â
75
â
VDD < 3.6 V (3.3 V Typ)
VDD < 5.5 V (5.0 V Typ)
â 120 â
IDD(2)
â 175 â
VDD < 3.6 V (3.3 V Typ)
VDD < 5.5 V (5.0 V Typ)
â 140 â
IDD(2)
â 180 â
VDD < 3.6 V (3.3 V Typ)
VDD < 5.5 V (5.0 V Typ)
â 340
IDD(2)
â 440
High speed (ADLPC = 0)
Low power (ADLPC = 1)
0.40(3) â
fADCK 0.40(3)
â
Short sample (ADLSMP = 0)
19
19
tADC
Long sample (ADLSMP = 1)
39
39
Short sample (ADLSMP = 0)
16
16
tADC
Long sample (ADLSMP = 1)
36
36
Short sample (ADLSMP = 0)
4
4
tADS
Long sample (ADLSMP = 1)
24
24
VADIN
VSS
â
CADIN
â
7
RADIN
â
5
â
615
2.00
1.00
21
41
18
38
4
24
VDD
10
15
Analog source impedance
RAS
â
â
10
Ideal resolution (1 LSB)
Total unadjusted error
10-bit mode
8-bit mode
10-bit mode
8-bit mode
RES
ETUE
1.758 5 5.371
7.031 20 21.48
0 ±1.5 ±2.5
0 ±0.7 ±1.0
Unit
V
μA
μA
μA
μA
MHz
tADCK
cycles
tADCK
cycles
tADCK
cycles
V
pF
kΩ
kΩ
mV
LSB
Comment
tADCK =
1/fADCK
Not tested
Not tested
External to
MCU
VREFH/2N
Includes
quantization
â Continued on next page
MC68HC908QC16 ⢠MC68HC908QC8 ⢠MC68HC908QC4 Data Sheet, Rev. 3
248
Freescale Semiconductor
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