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廬

VFC32

Voltage-to-Frequency

and Frequency-to-Voltage

CONVERTER

FEATURES

q

OPERATION UP TO 500kHz

q

EXCELLENT LINEARITY

鹵

0.01% max at 10kHz FS

鹵

0.05% max at 100kHz FS

q

V/F OR F/V CONVERSION

q

MONOTONIC

q

VOLTAGE OR CURRENT INPUT

DESCRIPTION

The VFC32 voltage-to-frequency converter provides

an output frequency accurately proportional to its

input voltage. The digital open-collector frequency

output is compatible with all common logic families.

Its integrating input characteristics give the VFC32

excellent noise immunity and low nonlinearity.

Full-scale output frequency is determined by an exter-

nal capacitor and resistor and can be scaled over a

wide range. The VFC32 can also be configured as a

frequency-to-voltage converter.

The VFC32 is available in 14-pin plastic DIP, SO-14

surface-mount, and metal TO-100 packages. Commer-

cial, industrial, and military temperature range models

are available.

APPLICATIONS

q

INTEGRATING A/D CONVERTER

q

SERIAL FREQUENCY OUTPUT

q

ISOLATED DATA TRANSMISSION

q

FM ANALOG SIGNAL MOD/DEMOD

q

MOTOR SPEED CONTROL

q

TACHOMETER

V

OUT

Comparator

Input

+V

CC

f

OUT

鈥揑n

One-Shot

+In

Common

VFC32

鈥揤

CC

One-Shot

Capacitor

International Airport Industrial Park

鈥?Mailing Address: PO Box 11400

鈥?Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd.

鈥?Tucson, AZ 85706

Tel: (602) 746-1111 鈥?Twx: 910-952-1111 鈥?Cable: BBRCORP

鈥?Telex: 066-6491 鈥?FAX: (602) 889-1510 鈥?Immediate Product Info: (800) 548-6132

漏

1977 Burr-Brown Corporation

PDS-372G

Printed in U.S.A. October, 1998

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