LM3S3748 Datasheet, PDF (359/753 Pages) List of Unclassifed Manufacturers – Microcontroller

Figure 13-4. Differential Sampling Range, V_{IN_ODD} = 2.25 V
ADC Conversion Result
0x3FF
0x2FF
0x1FF
LM3S3748 Microcontroller
0.75 V
-1.5 V
2.25 V
3.0 V
0.75 V
- Input Saturation
1.5 V
VIN_EVEN
V
13.2.6
Internal Temperature Sensor
The internal temperature sensor provides an analog temperature reading as well as a reference
voltage. The voltage at the output terminal SENSO is given by the following equation:
SENSO = 2.7 - ((T + 55) / 75)
This relation is shown in Figure 13-5 on page 359.
Figure 13-5. Internal Temperature Sensor Characteristic
13.3
Initialization and Configuration
In order for the ADC module to be used, the PLL must be enabled and using a supported crystal
frequency (see the RCC register). Using unsupported frequencies can cause faulty operation in the
ADC module.
April 08, 2008
359
Preliminary