General Description

The MAX1668 evaluation system (EV system) consists

of a MAX1668 evaluation kit (EV kit) and a companion

Maxim system management bus (SMBus™) interface

board.

The MAX1668 EV kit is an assembled and tested PC

board that demonstrates the MAX1668 temperature

sensor. It monitors the temperature of four external

diode-connected transistors and one internal diode,

and converts the temperatures to 8-bit, 2-wire serial

data. Four 2N3906 temperature-sensor transistors

come soldered to the board in SOT23 packages, but

for more realistic experiments, any of the transistors

can be removed and the board connected through a

twisted pair to remote diodes closer to your system.

The Maxim SMBus Interface Board (MAXSMBUS)

allows an IBM-compatible PC to use its parallel port to

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

ly interface to exercise the MAX1668 features. The pro-

gram is menu driven and offers a graphic interface with

control buttons and status display.

Order the MAX1668EVSYS for complete PC-based

evaluation of the MAX1668. Order the MAX1668EVKIT if

you already have an SMBus interface.

Features

o Measures and Displays Remote and Internal

Sensor Temperature

o Programmable Alarms and Configuration

o Operating Temperature Ranges

-55°C to +125°C (Remote Sensor)

0°C to +70°C (Board)

o Easy-to-Use Menu-Driven Software

o Assembled and Tested

o Includes Windows 95/98/2000 Compatible

Software and Demo PC Board

MAX1668 Evaluation System

________________________________________________________________ Maxim Integrated Products

1

19-1885; Rev 0; 12/00

EV System Component List

Ordering Information

EV Kit Component List

SMBus is a trademark of Intel Corp.

Windows is a registered trademark of Microsoft Corp.

Note: The MAX1668 EV kit software is provided with the

MAX1668EVKIT. However, to use the software, the MAXSMBUS

board is required to interface the EV kit to the computer.

PART

SMBUS

INTERFACE TYPE

IC

PACKAGE

MAX1668EVKIT

User Supplied

16 QSOP

MAX1668EVSYS

MAXSMBUS

16 QSOP

PART

QTY

DESCRIPTION

MAX1668EVKIT

1

MAX1668 evaluation kit

MAXSMBUS

1

SMBus interface board

DESIGNATION

QTY

DESCRIPTION

Q1–Q4

4

PNP bipolar transistors

Fairchild MMBT3906,

Motorola MMBT3906,

Vishay/Lite-On MMBT3906,

General Semiconductor

MMBT3906, or

Central Semiconductor

CMPT3906

SW1

1

Slide switch

U1

1

MAX1668MEE

None

1

3.5in software disk (MAX1668

EV kit)

None

3

Shunts

DESIGNATION

QTY

DESCRIPTION

C1

1

0.1

µF, 16V X7R ceramic

capacitor

Taiyo Yuden

EMK107BJ104KA or

Murata GRM39X7R104K016

C2–C5

4

2200pF, 50V X7R ceramic

capacitors

J1

1

2x10 right-angle female

receptacle

JU1, JU2, JU3

3

3-pin headers

JU4

0

Not installed

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.