16

Gnd V

IN

V–

V+

V+

V–

V

O

Gnd

15

1

2

1

2

10

9

7

8

Input

Section

Output

Section

5

6

7

+15V Gnd

7

6

5

2

1

V

IN

Input

Gnd

+15V, 20mA

–15V, 20mA

–15V, 20mA

+15V, 20mA

Auxiliary

Isolated

Power

Output

Auxiliary

Isolated

Power

Output

Output

Gnd

V

O

ISO124

0.47µF

0.47µF

0.47µF

0.47µF

0.47µF

DCP011515DB

or

DCV011515D

DCP011515DB

or

DCV011515D

18

ISO124

SBOS074E – SEPTEMBER 1997 – REVISED JUNE 2018

www.ti.com

Product Folder Links: ISO124

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Copyright © 1997–2018, Texas Instruments Incorporated

Typical Applications (continued)

8.2.8 Powered ISO Amplifier With Three-Port Isolation

Figure 23 illustrates an application solution that provides isolated power to both the user and high-voltage sides

of the ISO124 amplifier.

Figure 23. Powered ISO Amplifier With Three-Port Isolation Schematic