Datasheet

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Evaluates: MAX1270/MAX1271/MAX127/MAX128

General Description

The MAX1270 evaluation system (EV system) is a com-

plete, 8-channel data-acquisition system, consisting of a

MAX1270 evaluation kit (EV kit) and a Maxim

68HC16MODULE-DIP microcontroller (µC) module. It is

designed to evaluate the MAX1270/MAX1271, a multi-

range, 8-channel, 12-bit data-acquisition system.

Windows 3.1™/Windows 95™ software provides a handy

user-interface to exercise the MAX1270’s features.

Order the complete EV system (MAX1270EVC16) for

comprehensive evaluation of the MAX1270 or MAX1271,

using a personal computer. Order the EV kit

(MAX1270EVKIT) if you have already purchased the µC

module (68HC16MODULE-DIP) with another Maxim EV

system or for custom use in other µC-based systems.

The MAX1270 EV kit can also be used to evaluate the

MAX127 and MAX128.

Features

♦ Proven PC Board Layout

♦ Complete Evaluation System Samples to 12ksps

♦ Convenient Test Points Provided On-Board

♦ Data-Logging Software with FFT Capability

♦ Fully Assembled and Tested

MAX1270 EV Kit/EV System

________________________________________________________________ Maxim Integrated Products 1

19-4782; Rev 2; 8/00

Component Lists

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.

Ordering Information

PART TEMP. RANGE INTERFACE TYPE

MAX1270EVKIT 0°C to +70°C User-Supplied

MAX1270EVC16 0°C to +70°C Windows Software

Note: The MAX1270 software can be used only with the com-

plete evaluation system (MAX1270ECV16), which includes the

68HC16MODULE-DIP module with the MAX1270EVKIT.

Windows 3.1 and Windows 95 are trademarks of Microsoft Corp.

MAX1270EVC16 Component List

PART QTY DESCRIPTION

MAX1270EVKIT 1 MAX1270 evaluation kit

68HC16MODULE-DIP 1

68HC16 µC module with

16-bit parallel interface

MAX1270EVKIT Component List

DESIGNATION QTY DESCRIPTION

C1, C12, C13, C14 4 0.1µF ceramic capacitors

C2–C9 8 0.01µF ceramic capacitors

C10 1 0.01µF ceramic capacitor

C11, C15 2 4.7µF, 10V tantalum capacitors

C16 1

22µF, 50V aluminum

electrolytic capacitor

D1 1

Dual common-cathode

Schottky diode

JU1 1 3-pin header

JU2, JU3 2 2-pin headers

R1 1 10Ω ±5% resistor

R2–R5 0 Open

R6–R13 8 300Ω ±5% resistors

R14 1 1MΩ ±5% resistor

TP1 1 8-pin header

U1 1 28-pin socket, 0.300in. width

U1 1 MAX1270ACNG

DESIGNATION QTY DESCRIPTION

U2, U3 2 14-pin sockets

U2, U3 2

14-pin headers with four

jumper wires

(2–3, 5–6, 9–10, 12–13)

U4 1

4.096V voltage reference

MAX6141BCSA

U5 1

5V at 30mA linear regulator

MAX1615EUK

None 1 PC board

None 1

Software disk,

“MAX1270 Evaluation Kit”

Summary of content (7 pages)

PAGE 1
9-4782; Rev 2; 8/00 MAX1270 EV Kit/EV System Features ♦ Proven PC Board Layout The MAX1270 EV kit can also be used to evaluate the MAX127 and MAX128. Note: The MAX1270 software can be used only with the complete evaluation system (MAX1270ECV16), which includes the 68HC16MODULE-DIP module with the MAX1270EVKIT.
PAGE 2
Evaluates: MAX1270/MAX1271/MAX127/MAX128 MAX1270 EV Kit/EV System MAX1270 EV KIT Software Windows Application Program Files MAXADC.EXE Application program that runs under Window 3.1 or Windows 95 MAX1270.HLP Help file MAX1270.DLL MAXADC personality module for MAX1270 MAXADC.INI Program settings file MAX1270.C16 Software loaded into 68HC16 microcontroller 68HC16 Source Code Files KIT1270.ASM Main source code for the KIT1270.C16 program, provided for reference.
PAGE 3
MAX1270 EV Kit/EV System Procedure 1) Carefully connect the boards by aligning the 40-pin header of the MAX1270 EV kit with the 40-pin connector of the 68HC16MODULE-DIP module. Gently press them together. The two boards should be flush against one another. 2) Connect an +8V to +12V DC-power source to the µC module at terminal block J2, located next to the ON/OFF switch, along the top edge of the µC module. Observe the polarity marked on the board.
PAGE 4
Evaluates: MAX1270/MAX1271/MAX127/MAX128 MAX1270 EV Kit/EV System Low-Speed Data Logging You may optionally record readings into a data log file. Click on the New Log button to begin or end data logging. The Log File Format dialog box is displayed. One complete line of data is written after all enabled channels have been sampled. The first line of the log file contains the column headings.
PAGE 5
MAX1270 EV Kit/EV System Table 2. Jumper Functions JUMPER STATE Device Characteristics The Device Characteristics dialog box is used to select between the MAX1270 and MAX1271. Evaluating the MAX1271 The MAX1270 software can evaluate the MAX1271 directly. From the Window menu, pick Device Characteristics. Next, change the device type from MAX1270 to MAX1271 and click the Apply button. This tells the program that the input voltage span is ±VREF instead of ±10V.
PAGE 6
C14 0.1µF +5V C15 4.7µF 10V TP1 J1–38 J1–37 J1–36 J1–35 J1–34 J1–30 J1–2 J1–3 J1–1 J1–8 J1–7 IN 3 OUT 5/3 4 SHDN 5 2 GND U5 +5V MAX1615 1 1 2 34 5 6 78 R5 OPEN +5V JU1 DEFAULT TRACE 2–3 R1 10Ω J1–4 1MΩ R4 OPEN R3 OPEN R2 OPEN 3 1 N.C. N.C. N.C. N.C. 1 VDD U1 DGND (VDD) C1 0.1µF REF 4 J1–6 J1–5 DGND C16 22µF 50V AGND 12 SCLK (SCL) DIN (SDA) DOUT (A1) 6 CS (A0) 5 7 10 8 SSTRB (A2) 3 8 20 19 18 17 16 15 14 13 21 2 R VREF 23 Figure 1.
PAGE 7
MAX1270 EV Kit/EV System Figure 2. MAX1270 EV Kit Component Placement Guide— Component Side 1.0" 1.0" Figure 3. MAX1270 EV Kit PC Board Layout—Component Side Figure 4. MAX1270 EV Kit PC Board Layout—Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.