MCP6SX2DM-PCTLTH Microchip Technology, MCP6SX2DM-PCTLTH Datasheet - Page 16

• Manufacturer Part Number: MCP6SX2DM-PCTLTH
• Description: BOARD DEMO PICTAIL THERM MCP6SX2
• Manufacturer: Microchip Technology
• Series: PICtail™r

Specifications of MCP6SX2DM-PCTLTH

• Sensor Type: Thermistor
• Interface: Analog
• Voltage - Supply: 2.5 V ~ 5.5 V
• Embedded: No
• Utilized Ic / Part: MCP6S22, MCP6S92
• Processor To Be Evaluated: MCP6Sx2
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP6SX2 PGA Thermistor PICtail™ Demo Board User’s Guide
DS51517B-page 12
3.2.2
DIP switch SW
(R
together. These resistors produce a binary sequence of values between 0.5 kΩ and
32.0 kΩ.
Refer to Figure A.4 for the complete schematic.
FIGURE 3-2:
Each resistor with its switch (in SW
resistor values, is not added into the total for R
Each resistor with its switch (in SW
values, is added into the total for R
As an example, if the top four switches are to the right, and the bottom two are to the
left, then R
3.2.3
R
resistance changes depending on temperature; see AN897, “Thermistor Temperature
Sensing with MCP6SX2 PGAs” (DS00897).
21
A
in Figure 3-1). R
in Section A.4 “Board Schematic” is the thermistor (R
Configuring DIP Switch SW1 (R
Using the Thermistor (R
A
is calculated as 500 + 0 + 0 + 0 + 0 + 8,000 + 16,000 = 24,500Ω.
1
and resistors R
1
R
16,000
is placed in series with the others to prevent shorting the supplies
1,000
2,000
4,000
8,000
A
500
500
Emulator.
Draft
1
SW
– R
1
A
1
) pointing to the left, towards the silk screen resistor
1
) pointing to the right, away from the silk screen
.
7
in Figure 3-2 emulate the voltage divider resistor
TH
+5V
)
R
499
1
A
A
(it shorts that resistor).
)
R2 499Ω
R3 1.00 kΩ
R4 2.00 kΩ
R5 4.02 kΩ
R6 8.06 kΩ
R7 16.0 kΩ
© 2006 Microchip Technology Inc.
TH
in Figure 3-1). The