P r o d u c t I n n o v a t i o n F r o m

VRE305

VRE305DS



DESCRIPTION

The VRE305 is a low cost, high precision +5 V refer-

ence. Packaged in an industry standard 8-pin DIP or

SMT, the device is ideal for upgrading systems that

use lower performance references.

The device provides ultrastable +5 V output with ±0.5

mV (.01%) initial accuracy and a temperature coeffi-

cient of 0.6 ppm/°C. This improvement in accuracy is

made possible by a unique, patented multipoint laser

compensation technique. 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 VRE305

series the most accurate reference available in a stan-

dard 8-pin DIP or SMT.

For enhanced performance, the VRE305 has an exter-

nal trim option for users who want less than 0.01% ini-

tial error. For ultra low noise applications, an external

capacitor can be attached between the noise reduction

pin and the ground pin. A reference ground pin is pro-

vided to eliminate socket contact resistance errors.

FEaTuRES

♦ +5 V Output, ± 0.5 mV (.01%)

♦ Temperature Drift: 0.6 ppm/ºC

♦ Low Noise: 3 μV

♦ Industry Standard Pinout: 8-pin DIP or

Surface Mount Package

♦ Excellent Line Regulation: 6 ppm/V Typical

♦ Output Trim Capability

aPPlICaTIONS

The VRE305 is recommended for use as a refer-

ence for 14, 16, or 18 bit D/A converters which re-

quire an external precision reference. The device

is also ideal for calibrating scale factor on high

resolution A/D converters. The VRE305 offers su-

perior performance over monolithic references.

Precision Voltage Reference

VRE305

P r o d u c t I n n o v a t i o n F r o m

Figure.BlOCKDIaGRaM

Copyright © Cirrus Logic, Inc. 2009

(All Rights Reserved)

http://www.cirrus.com

MaR2009

APEX − VRE305DSREVE

Model

InitialError

(mV)

Temp.Coeff.

(ppm/ºC)

Temp.Range

(ºC)

Package

Options

VRE305AS

VRE305AD

VRE305BS

VRE305BD

VRE305CS

VRE305CD

VRE305JS

VRE305JD

VRE305KS

VRE305KD

VRE305LS

VRE305LD

0.5

0.5

0.8

0.8

1.0

1.0

0.5

0.5

0.8

0.8

1.0

1.0

0.6

0.6

1.0

1.0

2.0

2.0

0.6

0.6

1.0

1.0

2.0

2.0

0ºC to +70ºC

0ºC to +70ºC

0ºC to +70ºC

0ºC to +70ºC

0ºC to +70ºC

0ºC to +70ºC

-40ºC to +85ºC

-40ºC to +85ºC

-40ºC to +85ºC

-40ºC to +85ºC

-40ºC to +85ºC

-40ºC to +85ºC

SIP8 (GD)

DIP8 (KD)

SIP8 (GD)

DIP8 (KD)

SIP8 (GD)

DIP8 (KD)

SIP8 (GD)

DIP8 (KD)

SIP8 (GD)

DIP8 (KD)

SIP8 (GD)

DIP8 (KD)

SElECTIONGuIDE

8-pinSurfaceMount

PackageStyleGD

8-pinDIP

PackageStyleKD