CAT522WI-T2(RevF) データシートの表示（PDF） - Catalyst Semiconductor => Onsemi

部品番号

コンポーネント説明

メーカー

CAT522WI-T2
(Rev.:RevF)

Configured Digitally Programmable Potentiometer (DPP™): Programmable Voltage Applications

Catalyst Semiconductor => Onsemi 

CAT522

APPLICATION CIRCUITS

+5V

VI

RI

RF

CONTROL

& DATA

VDD

VREFH

CAT522

GND

VREFL

+15V

–

+

OP 07

-15V

VOUT

V OUT

=

VDPP

(

RI+ RF )

RI

-

VI

RF

For R I = RF

VOUT = 2VDPP - VI

DPP INPUT

MSB LSB

1111 1111

1000 0000

0111 1111

0000 0001

0000 0000

DPP OUTPUT

VDPP

=

CODE

255

VFS

-

VZERO

+ VZERO

VFS = 0.99VREF

VZERO = 0.01VREF

255

255

× 0.98VREF

+

0.01VREF

=

0.990VREF

128

255

×

0.98VREF

+

0.01VREF

=

0.502VREF

127

255

×

0.98VREF

+

0.01VREF

=

0.498VREF

1

255

×

0.98VREF

+

0.01VREF

=

0.014VREF

0

255

×

0.98VREF

+

0.01VREF

=

0.010VREF

ANALOG OUTPUT

VREF = 5V

RI = RF

VOUT = +4.90V

VOUT = +0.02V

VOUT = -0.02V

VOUT = -4.86V

VOUT = -4.90V

Bipolar DPP Output

V+

CONTROL

& DATA

+5V

RI

RF

I > 2mA

VDD

VREFH

CAT522

GND

VREFL

+15V

–

+

OP 07

-15V

VOUT

CONTROL

& DATA

VOUT = (1 + RRFI ) VDPP

VDD

VREFH

CAT522

GND

VREFL

VREF = 5.00V

LT 1029

Amplified DPP Output

Digitally Trimmed Voltage Reference

28 - 32V

CONTROL

& DATA

15kΩ 10µF

1N5231B

10kΩ

VDD

VREFH 5.1V

CAT522

GND

VREFL

+

–

LM 324

4.02kΩ

1.00kΩ

MPT3055EL

10µF

35V

OUTPUT

0 - 25V

@ 1A

Digitally Controlled Voltage Reference

© Catalyst Semiconductor, Inc.

9

Characteristics subject to change without notice

Doc. No. MD-2004 Rev. F

Share Link: