VRE304-6 datasheet(1/41 Pages) ETC

Part #	VRE304-6

Description	Low Cost Precision Reference

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VRE302

Low Cost

Precision Reference

DESCRIPTION

FEATURES

The VRE302 is a low cost, high precision 2.5V

reference. Packaged in the industry standard 8

pin DIP, the device is ideal for upgrading systems

that use lower performance references.

The device provides ultrastable +2.500V output

with ±0.2500 mV (.01%) initial accuracy and a

temperature coefficient of 0.6 ppm/°C.

This

improvement in accuracy is made possible by a

unique, patented multipoint laser compensation

technique developed by Thaler Corporation.

Significant improvements have been made in

other performance parameters as well, including

initial accuracy, warm-up drift, line regulation, and

long-term stability, making the VRE302 series the

most accurate reference available in the standard

8 pin DIP package.

For enhanced performance, the VRE302 has an

external trim option for users who want less than

0.01% initial error.

A reference ground pin is

provided to eliminate socket contact resistance

errors.

PIN CONFIGURATION

The VRE302 is recommended for use as a

reference for 14, 16, or 18 bit D/A converters

which require an external precision reference.

The device is also ideal for calibrating scale factor

on high resolution A/D converters. The VRE302

offers superior performance over monolithic

references.

• 2.500 V OUTPUT ± 0.250 mV (.01%)

• TEMPERATURE DRIFT: 0.6 ppm/°C

• LOW NOISE: 1.5µV

p-p (0.1-10Hz)

• INDUSTRY STD PINOUT- 8 PIN DIP OR

SURFACE MOUNT PACKAGE

•EXCELLENT LINE REGULATION: 6ppm/V Typ.

• OUTPUT TRIM CAPABILITY

FIGURE 1

VRE302DS REV. F MAY 2001

SELECTION GUIDE

Model

Temp.

Range

°C

Temp.

Coeff.

ppm/°C

VRE302A

0.25

0.6

0°C to +70°C

VRE302B

0.40

1.0

0°C to +70°C

VRE302C

0.50

2.0

0°C to +70°C

VRE302J

0.25

0.6

-40°C to +85°C

VRE302K

0.40

1.0

-40°C to +85°C

VRE302L

0.50

2.0

-40°C to +85°C

For package option add D for DIP or S for Surface Mount

to end of model number.

Initial

Error

mV

THALER CORPORATION • 2015 N. FORBES BOULEVARD • TUCSON, AZ. 85745 • (520) 882-4000

5

6

7

8

VRE302

TOP

VIEW

1

2

3

4

N.C.

+V

IN

TEMP

GND

NOISE

REF. GND

V

OUT

TRIM

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