19-1885; Rev 0; 12/00
MAX1668 Evaluation System
General Description
The MAX1668 evaluation system (EV system) consists
of a MAX1668 evaluation kit (EV kit) and a companion
Maxim system management bus (SMBus鈩? 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
emulate an Intel SMBus 2-wire interface. Windows
廬
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擄C to +125擄C (Remote Sensor)
0擄C to +70擄C (Board)
o
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C鈩?SMBus Compatible
o
Easy-to-Use Menu-Driven Software
o
Assembled and Tested
o
Includes Windows 95/98/2000 Compatible
Software and Demo PC Board
Evaluates: MAX1668
Ordering Information
PART
MAX1668EVKIT
MAX1668EVSYS
SMBUS
INTERFACE TYPE
User Supplied
MAXSMBUS
IC
PACKAGE
16 QSOP
16 QSOP
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.
SMBus is a trademark of Intel Corp.
Windows is a registered trademark of Microsoft Corp.
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C is a trademark of Philips Corp.
EV System Component List
PART
MAX1668EVKIT
MAXSMBUS
QTY
1
1
DESCRIPTION
MAX1668 evaluation kit
SMBus interface board
EV Kit Component List
DESIGNATION
QTY
DESCRIPTION
0.1碌F, 16V X7R ceramic
capacitor
Taiyo Yuden
EMK107BJ104KA or
Murata GRM39X7R104K016
2200pF, 50V X7R ceramic
capacitors
2x10 right-angle female
receptacle
3-pin headers
Not installed
None
None
1
3
SW1
U1
1
1
DESIGNATION
QTY
DESCRIPTION
PNP bipolar transistors
Fairchild MMBT3906,
Motorola MMBT3906,
Vishay/Lite-On MMBT3906,
General Semiconductor
MMBT3906, or
Central Semiconductor
CMPT3906
Slide switch
MAX1668MEE
3.5in software disk (MAX1668
EV kit)
Shunts
C1
1
Q1鈥換4
4
C2鈥揅5
J1
JU1, JU2, JU3
JU4
4
1
3
0
________________________________________________________________
Maxim Integrated Products
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For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim鈥檚 website at www.maxim-ic.com.
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