Datasheet

5
5
2.0 Getting Started (continued)
2.4 Test Setup – Hardware
Figure 2 below shows an example of a typical LMxx Evaluation Board test setup.
Figure 2. Test Setup using the LMxx Evaluation Board
No jumpers are required on header JP2.
Hardware Test Setup Procedure
1. The LMxx Evaluation Board comes with jumpers installed on J4, which connects the on-board
MMBT3904 diode-connected transistor to the input of the LMxx chip.
2. Connect the USB cable from the computer’s USB port to the LMxx Evaluation Board.
3. Start the SensorEval software.
2.5 Test Setup – System
For continuous temperature readings select the read continuous check box.
National Semiconductor
J4
U3
JP2
LM86 Evaluation Board Rev. 2
J3
TCRIT#
ALERT#
SCL
SDA
NC
NC
+3.3
Q1
LMxx
LMxx = LM86, LM89, LM89-1, LM90, LM99, or LM99-1
No
jumpers
required
7
6
5
4
3
2
1
Computer
USB Port
Connection