MAX31865EVKIT# Maxim Integrated, MAX31865EVKIT# Datasheet - Page 4

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MAX31865EVKIT#

Manufacturer Part Number
MAX31865EVKIT#
Description
Data Conversion IC Development Tools MAX31865 Eval Kit
Manufacturer
Maxim Integrated
Type
RTD to Digitalr
Datasheet

Specifications of MAX31865EVKIT#

Rohs
yes
Product
Evaluation Kits
Tool Is For Evaluation Of
MAX31865
Interface Type
SPI, USB
Operating Supply Voltage
3.3 V
Part # Aliases
90-31865#K00
MAX31865 Evaluation Kit
Figure 1. MAX31865 EV Kit GUI (Registers Tab)
Detailed Description of Software
Device Configuration
Upon successful completion of the setup procedure, the
user is ready to begin evaluation of the device. The device
powers up in “normally off” conversion mode. To begin
conversions, first enable the VBIAS output by clicking
the On radio button located in the MAX31865 Setup Info
group box in the Registers tab (Figure 1). Next, enable
conversions by changing the Conversion Mode to Auto
by clicking the Auto radio button. It is now time to read the
results. This is accomplished by clicking the Read button
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in the RTD Resistance Register group box. The conver-
sion results are displayed below the button in hex and
binary format. Also note that the ADC result is displayed
in decimal format. The RTD resistance is then calculated
from the ADC result and the value entered in the RREF
Nominal Resistance edit box located in the MAX31865
Setup Info group box. With the supplied 1kΩ resistor, the
calculated RTD resistance should be 1kΩ ±6% due to the
tolerance of the provided resistors. Note: Since there is
not an RTD connected at this time, the RTD temperature
equations are not valid registers.
Evaluates: MAX31865
Maxim Integrated │ 4

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