Vcc1

Vcc2

GND1

GND2

OUTA

16

14

13

2,8

9,15

4

XOUT

XIN

5

6

2

MSP430

G2132

(14-PW)

INA

OUTD

1

3

4

5

6

ISO7341

DVss

DVcc

0.1F

0.1F

0.1F

EN1

EN2

7

10

INB

12

11

OUTB

OUTC

IND

0.1F

INC

SDI

P1.4

SCLK

SDO

9

6

7

8

4.7k

4.7k

28

VBD

AGND

CH0

1,22

CS

26

23

24

25

SCLK

SDI

20

SDO

ADS7953

CH15

5

BDGND

27

32

VA

31

REFP

2

MXO

3

AINP

REFM

30

GND

2

6

4

REF5025

1F

10F

0.1F

MBR0520L

MBR0520L

1:1.33

0.1F

3

1

D2

SN6501

D1

Vcc

4,5

2

GND

3.3V

IN

EN

GND

OUT

4

1

2

3

TLV70733

10F

10F

22

F

16 Analog

Inputs

ISO-BARRIER

ISO7340C, ISO7340FC, ISO7341C, ISO7341FC, ISO7342C, ISO7342FC

www.ti.com

SLLSEI6E – SEPTEMBER 2014 – REVISED APRIL 2015

Typical Application (continued)

9.2.2 Typical Application for Module with 16 Inputs

ISO7341 and several other components from Texas Instruments can be used to create an isolated SPI interface

for input module with 16 inputs.

Figure 26. Isolated SPI Interface for an Analog Input Module With 16 Inputs

9.2.2.1 Design Requirements

Refer to Isolated Data Acquisition System for Process Control for the design requirements.

9.2.2.2 Detailed Design Procedure

Refer to Isolated Data Acquisition System for Process Control for the detailed design procedures.

9.2.2.3 Application Performance Curves

Refer to Isolated Data Acquisition System for Process Control for the application performance curves.

Copyright © 2014–2015, Texas Instruments Incorporated

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Product Folder Links: ISO7340C ISO7340FC ISO7341C ISO7341FC ISO7342C ISO7342FC