LM3S2965-IQC20-A0T Luminary Micro, Inc., LM3S2965-IQC20-A0T Datasheet - Page 527

• Manufacturer Part Number: LM3S2965-IQC20-A0T
• Description: Microcontroller
• Manufacturer: Luminary Micro, Inc.

23.2.3
23.2.4
June 04, 2007
a. The ADC must be clocked from the PLL or directly from a 14-MHz to 18-MHz clock source to operate properly.
Table 23-8. Crystal Characteristics
Temperature Sensor
Table 23-9. Temperature Sensor Characteristics
Analog-to-Digital Converter
Table 23-10. ADC Characteristics
f
t
f
f
f
Parameter Name
Frequency
Frequency tolerance
Aging
Oscillation mode
Temperature stability (0 - 85 °C)
Motional capacitance (typ)
Motional inductance (typ)
Equivalent series resistance (max)
Shunt capacitance (max)
Load capacitance (typ)
Drive level (typ)
Parameter
V
t
t
Parameter
V
C
N
f
t
f
MOSC
MOSC_per
ref_crystal_bypass
ref_ext_bypass
system_clock
ADC
ADCCONV
TSERR
TSNL
ADCCONV
ADCIN
ADCIN
Parameter
TSO
Parameter Name
Output voltage
Output voltage temperature accuracy
Output temperature nonlinearity
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
Parameter Name
Main oscillator frequency
Main oscillator period
Crystal reference using the main oscillator (PLL in BYPASS mode)
a
External clock reference (PLL in BYPASS mode)
System clock
Parallel
27.8
14.3
±50
±25
120
100
±5
10
16
8
Parallel
Preliminary
37.0
19.1
±50
±25
160
100
±5
10
16
6
Value
Min
0.3
-
-
Parallel
55.6
28.6
±50
±25
200
100
±5
10
16
Nom
4
-
-
-
Parallel
Max
±3.5
2.7
±1
63.5
32.7
±50
±25
220
100
3.5
a
±5
10
16
Unit
Min
875
14
˚C
˚C
V
-
-
-
-
-
-
-
Units
ppm/yr
MHz
ppm
ppm
mH
µW
pF
pF
pF
Nom
1000
Ω
10
16
1
-
-
-
-
-
1125
Max
-1.5
3.0
1.5
18
16
0
-
-
Min
125
V
V
V
V
pF
bits
MHz
t
k samples/s
1
1
0
0
ADC
Unit
cycles
LM3S2965 Microcontroller
Nom
-
-
-
-
-
a
1000
Max
50
50
8
8
MHz
MHz
MHz
MHz
Unit
ns
527