VRE204_1 CIRRUS [Cirrus Logic], VRE204_1 Datasheet
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VRE204_1
Manufacturer Part Number
VRE204_1
Description
Precision Voltage Reference
Manufacturer
CIRRUS [Cirrus Logic]
Datasheet
1.VRE204_1.pdf
(4 pages)
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
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
+4.5V
VRE204
Precision Voltage Reference
Operating Range
-55°C to +125°C
-55°C to +125°C
Temperature
Figure 1. BLOCK DIAGRAM
Copyright © Cirrus Logic, Inc. 2009
(All Rights Reserved)
11
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
VRE204
NOV 2009
1
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VRE204_1 Summary of contents
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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 ...