19-2345; Rev 0; 02/02
MAX6675 Evaluation Kit
General Description
The MAX6675 evaluation kit (EV kit) is an assembled
and tested PC board that demonstrates the MAX6675
thermocouple digital temperature sensor. It accepts the
input from a type-K thermocouple and converts the
temperature to 12-bit data.
The MAX6675 EV kit connects to a computer for acquir-
ing the data from the MAX6675. Windows
廬
95/98/2000-
compatible software provides a user-friendly interface
to display the 12-bit data and convert it to a tempera-
ture.
The EV kit includes a type-K thermocouple for evalua-
tion up to +80擄C.
To evaluate the MAX6674, order a free sample of the
MAX6674ISA.
Features
o
Digitizes and Displays Temperature from a
Type-K Thermocouple
o
SPI鈩?Compatible Serial Interface
o
Easy-to-Use Menu-Driven Software
o
Available in an 8-Pin SO Package
o
Assembled and Tested
o
Includes Windows 95/98/2000-Compatible
Software, Demo PC Board, and Type-K
Thermocouple
Evaluates: MAX6674/MAX6675
Component List
DESIGNATION
QTY
DESCRIPTION
0.1碌F, 16V X7R ceramic capacitors
Taiyo Yuden EMK107BJ104KA
Murata GRM188R71C104KA01
TDK C1608X7R1C104K
2.2碌F, 16V X7R ceramic capacitor
Taiyo Yuden EMK316BJ225ML
Murata GRM42-6X7R225K016
TDK C3216X7R1C225M
DB-25 male right-angle connector
Thermocouple connector, miniature
size, type K
Omega PCC-SMP-K
Not installed
470k鈩?/div>
鹵5%
resistor
MAX6675ISA temperature sensor
MAX1840EUB/MAX1841EUB level
translator
MAX1615EUK linear voltage
regulator
Thermocouple, epoxy-coated tip,
-10擄C to +80擄C, miniature-size
male connector, type K
Omega TC-PVC-K-24-180
PART
MAX6675EVKIT
C1鈥揅4
4
Ordering Information
TEMP RANGE
0擄C to +70擄C
IC PACKAGE
8 SO
Quick Start
Required Equipment
Before you begin, the following equipment is needed:
鈥?Computer running Windows 95, 98, or 2000 (Note:
Windows 2000 requires the installation of a driver;
refer to Win2000.pdf or Win2000.txt located on the
diskette.)
鈥?/div>
鈥?/div>
Parallel printer port (this is a 25-pin socket on the
back of the computer)
Standard 25-pin, straight-through, male-to-female
cable (printer extension cable) to connect the com-
puter鈥檚 parallel port to the MAX6675 EV kit
DC power supply capable of supplying any voltage
between 7V and 20V at 100mA
C5
1
J1
J2
JU1鈥揓U5
R1
U1
U2
U3
1
1
0
1
1
1
1
鈥?/div>
Procedure
Do not turn on the power until all connections are
made.
1) Connect a cable from the computer鈥檚 parallel port
to the MAX6675 EV kit. Use a straight-through 25-
pin female-to-male cable. To avoid damaging the
EV kit or your computer, do not use a 25-pin SCSI
port or any other connector that is physically similar
to the 25-pin parallel printer port.
None
1
Windows is a registered trademark of Microsoft Corp.
SPI is a trademark of Motorola, Inc.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
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