General Description

The MAX6675 evaluation kit (EV kit) is an assembled

and tested printed circuit board (PCB) that demon-

strates 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

95/98/2000/XP compatible software provides a user-

friendly interface to display the 12-bit data and convert

it to a temperature.

The EV kit includes a type-K thermocouple for evalua-

tion up to +80°C.

To evaluate the MAX6674, order a free sample of the

MAX6674ISA.

Features

♦ Digitizes and Displays Temperature from a

Type-K Thermocouple

♦ SPI™-Compatible Serial Interface

♦ Easy-to-Use Menu-Driven Software

♦ Available in an 8-Pin SO Package

♦ Fully Assembled and Tested

♦ Includes Windows 95/98/2000/XP-Compatible

Software, Demo PCB, and Type-K Thermocouple

MAX6675 Evaluation Kit

________________________________________________________________ Maxim Integrated Products

1

19-2345; Rev 1; 02/07

Component List

Ordering Information

PART

TEMP RANGE

IC PACKAGE

MAX6675EVKIT

0°C to +70°C

8 SO

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Quick Start

Required Equipment

Before beginning, the following equipment is needed:

• DC power supply capable of supplying any voltage

between 7V and 20V at 100mA

• A user-supplied Windows 95/98/2000/XP-compatible

PC with an available parallel port (female DB-25

connector on back of PC)

• A standard 25-pin, straight-through, male-to-female

cable to connect the PC’s parallel port to the

MAX6675 EV kit board

Note: In the following sections, software-related items

are identified by bolding. Text in

bold refers to items

directly from the EV kit software. Text in

bold and

underlined refers to items from the Windows

95/98/2000/XP operating system.

Procedure

The MAX6675 is fully assembled and tested. Follow the

steps below to verify board operation.

Caution: Do not

turn on the power supply until all connections are

complete.

1) Connect a 25-pin, straight-through, male-to-female

cable from the PC’s parallel port to the MAX6675 EV

kit board.

Windows is a registered trademark of Microsoft Corp.

SPI is a trademark of Motorola, Inc.

DESIGNATION

QTY

DESCRIPTION

C1–C4

4

0.1µF, 16V X7R ceramic capacitors

Taiyo Yuden EMK107BJ104KA

Murata GRM188R71C104KA01

TDK C1608X7R1C104K

C5

1

2.2µF, 16V X7R ceramic capacitor

Taiyo Yuden EMK316BJ225ML

Murata GRM42-6X7R225K016

TDK C3216X7R1C225M

J1

1

DB-25 male right-angle connector

J2

1

Thermocouple connector, miniature

size, type K

Omega PCC-SMP-K

JU1–JU5

0

Not installed

R1

1

470k

Ω ±5% resistor

U1

1

MAX6675ISA temperature sensor

U2

1

MAX1840EUB/MAX1841EUB level

translator

U3

1

MAX1615EUK linear voltage

regulator

—

1

Thermocouple, epoxy-coated tip,

-10°C to +80°C, miniature-size

male connector, type K

Omega TC-PVC-K-24-180