11

All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.

Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality

Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without

notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and

reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result

from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.

For information regarding Intersil Corporation and its products, see www.intersil.com

FN3072.7

October 10, 2005

Other Applications

Further information on the operation and use of the ICL7660

and ICL7660A may be found in AN051 “Principals and

Applications of the ICL7660 and ICL7660A CMOS Voltage

Converter”.

1

2

3

4

8

7

6

5

+

-

100

µF

100

µF

+

-

10

µF

ICL7611

+

-

100

Ω

50K

+8V

100K

50K

ICL8069

56K

+8V

800K

250K

VOLTAGE

ADJUST

-

+

ICL7660

ICL7660A

FIGURE 22. REGULATING THE OUTPUT VOLTAGE

1

2

3

4

8

7

6

5

+

-

+

-

10

µF

16

TTL DATA

INPUT

15

4

10

µF

13

14

12

11

+5V LOGIC SUPPLY

RS232

DATA

OUTPUT

IH5142

1

3

+5V

-5V

ICL7660

ICL7660A

FIGURE 23. RS232 LEVELS FROM A SINGLE 5V SUPPLY

ICL7660, ICL7660A