•• VERY HIGH ACCURACY: 4.5000 V OUTPUT ±0.4 mV
•• EXTREMELY LOW DRIFT: 0.6 ppm/°C -55°C to +125°C
•• EXCELLENT STABILITY: 6ppm/1000 Hrs. Typ.
•• EXCELLENT LINE REGULATION: 6 ppm/V Typ.
•• WIDE SUPPLY RANGE: +13.5 V to +22.0 V
•• HERMETIC 20 TERMINAL CERAMIC LCC
•• MILITARY PROCESSING AVAILABLE
VRE204
Precision Surface Mount
Reference Supply
DESCRIPTION
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 INSTRUMENTS
FEATURES
SELECTION GUIDE
VRE204 Series Precision Voltage References
provide ultrastable +4.500 V outputs with up to
±0.4
mV
initial
accuracy
and
temperature
coefficient as low as 0.6 ppm/°C over the full
military temperature range.
These references are specifically designed to be
used with the Crystal Semiconductor line of
successive-approximation type Analog-to-Digital
Converters (ADCs). This line of ADCs sets new
standards for temperature drift, which can only be
as good as the external reference used. The
Thaler VRE204 combined with a Crystal ADC will
provide
the
lowest
drift
data
conversion
obtainable.
Type
Output
Temperature
Operating Range
Max. Volt
Deviation
VRE204C
+4.5V
-25°C to +85°C
0.4mV
VRE204CA
+4.5V
-25°C to +85°C
0.2mV
VRE204M
+4.5V
-55°C to +125°C
0.6mV
VRE204MA +4.5V
-55°C to +125°C
0.3mV
VRE204 series devices are available in two operating temperature ranges, -25°C to +85°C and -55°C to
+125°C, and two performance grades. All devices are packaged in 20 terminal LCC ceramic packages
for maximum long-term stability. "M" versions are screened for high reliability and quality.
Superior stability, accuracy, and quality make the VRE204 ideal for all precision applications which may
require a 4.5V reference. High-accuracy test and measurement instrumentation, and transducer
excitation are some other applications which can benefit from the high accuracy of the VRE204.
VRE204DS REV. C JUNE 1995
THALER CORPORATION • 2015 N. FORBES BOULEVARD • TUCSON, AZ. 85745 • (520) 882-4000
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