LM3S317-IQN20-A0T Luminary Micro, Inc., LM3S317-IQN20-A0T Datasheet - Page 364

• Manufacturer Part Number: LM3S317-IQN20-A0T
• Description: Microcontroller
• Manufacturer: Luminary Micro, Inc.

Electrical Characteristics
19.2.3
Table 19-8. ADC Characteristics
a. t
364
V
C
N
f
t
f
INL
DNL
OFF
GAIN
ADC
ADCCONV
ADCCONV
ADCIN
ADCIN
ADC
Parameter
= 1/f
ADC clock
Table 19-7. Clock Characteristics
a. The ADC must be clocked from the PLL or directly from a 14-MHz to 18-MHz clock source in order to operate
Analog-to-Digital Converter
f
f
t
f
f
f
IOSC
MOSC
MOSC_PER
REF_CRYSTAL_BYPASS
REF_EXT_BYPASS
SYSTEM_CLOCK
properly.
Parameter
Parameter Name
Maximum single-ended, full-scale
analog input voltage
Minimum single-ended, full-scale
analog input voltage
Maximum differential, full-scale
analog input voltage
Minimum differential, full-scale analog
input voltage
Equivalent input capacitance
Resolution
ADC internal clock frequency
Conversion time
Conversion rate
Integral nonlinearity
Differential nonlinearity
Offset
Gain
Parameter Name
Internal oscillator
frequency
Main oscillator frequency
Main oscillator period
Crystal reference using the
main oscillator (PLL in
BYPASS mode)
External clock reference
(PLL in BYPASS mode)
System clock
Preliminary
a
a
Min
219
3.5
-
-
-
-
-
-
-
-
-
-
-
Min
125
7
1
1
0
0
Nom
250
10
1
4
-
-
-
-
-
-
-
-
-
Nom
15
-
-
-
-
-
Max
-1.5
281
3.0
1.5
4.5
+2
16
±1
±1
±2
0
-
-
1000
Max
22
25
25
8
8
t
k samples/s
ADC
May 4, 2007
MHz
Unit
LSB
LSB
LSB
LSB
bits
pF
cycles
V
V
V
V
MHz
MHz
MHz
MHz
MHz
Unit
ns
a