VRE204_1 CIRRUS [Cirrus Logic], VRE204_1 Datasheet

VRE204_1

Manufacturer Part Number

VRE204_1

Description

Precision Voltage Reference

Manufacturer

CIRRUS [Cirrus Logic]

Datasheet

1.VRE204_1.pdf (4 pages)

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FEATURES

♦ Very High Accuracy: +4.5 V Output, ±0.8 mV

♦ Extremely Low Drift: 0.74 ppm/°C (-55°C to

♦ Excellent Stability: 6 ppm/1000 Hrs. Typical

♦ Excellent Line Regulation: 6 ppm/V Typical

♦ Wide Supply Range: ±13.5 V to ±22.0 V

♦ Hermetic 20-terminal Ceramic LCC

♦ Military Processing Available

APPLICATIONS

♦ Precision A/D and D/A Converters

♦ Transducer Excitation

♦ Accurate Comparator Threshold Reference

♦ High Resolution Servo Systems

♦ Digital Voltmeters

♦ High Precision Test and Measurement Instru-

SELECTION GUIDE

VRE204DS

VRE204M

VRE204MA

+125°C)

ments

www.cirrus.com

Model

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

Output (V)

+4.5V

VRE204

Precision Voltage Reference

Operating Range

-55°C to +125°C

Temperature

Figure 1. BLOCK DIAGRAM

Volt Deviation (MAX)

DESCRIPTION

VRE204 Series Precision Voltage References provide

ultrastable +4.5 V outputs with up to ±0.8 mV initial

accuracy and temperature coefficient as low as 0.74

ppm/°C over the full military temperature range.

These references are specifically designed to be used

with successive-approximation type Analog-to-Digital

Converters (ADCs). Specify an ADC with exceptional

temperature drift, which can only be as good as the

external reference used. The VRE204 combined with

the right ADC will provide the lowest drift data conver-

sion obtainable.

The VRE204 series is available in the military operat-

ing temperature range -55°C to +125°C, and two per-

formance grades. All devices are packaged in 20-ter-

minal LCC ceramic packages for maximum long-term

stability. These “M” versions are screened for high reli-

ability and quality.

Superior stability, accuracy, and quality make the

VRE204 ideal for all precision applications which may

require a 4.5 V reference. High-accuracy test and

measurement instrumentation, and transducer exci-

tation are some other applications which can benefit

from the high accuracy of the VRE204.

±0.69mV

±0.60mV

20-terminal Ceramic LCC

APEX − VRE204DSREVH

Package Style HD

VRE204

NOV 2009

Related parts for VRE204_1

VRE204_1 Summary of contents

VRE204 1. CHARACTERISTICS AND SPECIFICATIONS ELECTRICAL SPECIFICATIONS V =+15V +25° 10K Ω UNLESS OTHERWISE NOTED Model Parameter Min ABSOLUTE MAXIMUM RATINGS Power Supply +13.5 Operating Temperature -55 Storage Temperature -65 Short Circuit Protection OUTPUT ...

Page 3

TYPICAL PERFORMANCE GRAPHS V vs. TEMPERATURE OUT 0.69 -0.69 Temperature VRE204M QUIESCENT CURRENT VS. TEMP Temperature o C ...

Page 4

VRE204 4. APPLICATION INFORMATION The proper connection of the VRE204 series voltage references with the optional trim resistors is shown below. Pay careful attention to the circuit layout to avoid noise pickup and voltage drops in the lines. The VRE204 ...

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VRE204_1 CIRRUS [Cirrus Logic], VRE204_1 Datasheet

VRE204_1

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VRE204_1 Summary of contents

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