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XR-4151

...the analog plus company

TM

Voltage-to-Frequency

Converter

June 1997-3

FEATURES

D

Single Supply Operation (+8V to +22V)

D

Pulse Output Compatible with All Logic Forms

D

Programmable Scale Factor (K)

D

Linearity

$0.05%

Typical-precision Mode

D

Temperature Stability

$100%

ppm/擄C Typical

D

High Noise Rejection

D

Inherent Monotonicity

D

Easily Transmittable Output

D

Simple Full Scale Trim

D

Single-Ended Input, Referenced to Ground

D

Also Provides Frequency-to-Voltage Conversion

D

Direct Replacement for RC/RV/RM-4151

GENERAL DESCRIPTION

The XR-4151 is a device designed to provide a simple,

low-cost method for converting a DC voltage into a

proportional pulse repetition frequency. It is also capable

of converting an input frequency into a proportional output

ORDERING INFORMATION

Part No.

XR-4151P

XR-4151CP

XR-4151MD

APPLICATIONS

D

Voltage-to-Frequency Conversion

D

A/D and D/A Conversion

D

Data Transmission

D

Frequency-to-Voltage Conversion

D

Transducer Interface

D

System Isolation

voltage. The XR-4151 is useful in a wide range of

applications including A/D and D/A conversion and data

transmission.

Package

8 Lead 300 Mil PDIP

8 Lead 300 Mil PDIP

8 Lead 4.4mm EIAJ SOP

Operating

Temperature Range

-40擄C to +85擄C

0擄C to +70擄C

0擄C to +70擄C

BLOCK DIAGRAM

GND

4

V

CC

SCFA

8

2

INPV

TRSH

CSO

7

6

1

RC

Comp

One Shot

Switch

3

OUTL

5

Figure 1. Block Diagram

Rev. 2.01

E1979

EXAR Corporation, 48720 Kato Road, Fremont, CA 94538

z

(510) 668-7000

z

FAX (510) 668-7017

1

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