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HIGH PRECISION TEST and
MEASUREMENT INSTRUMENTS
DESCRIPTION
VRE204 Series Precision Voltage References
provide ultrastable +4.500 V outputs with up to
鹵0.4 mV initial accuracy and temperature
coefficient as low as 0.6 ppm/擄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.
SELECTION GUIDE
Type
Output
Temperature
Max. Volt
Operating Range Deviation
-25擄C to +85擄C
-25擄C to +85擄C
-55擄C to +125擄C
-55擄C to +125擄C
0.4mV
0.2mV
0.6mV
0.3mV
VRE204C
+4.5V
VRE204CA +4.5V
VRE204M +4.5V
VRE204MA +4.5V
VRE204 series devices are available in two operating temperature ranges, -25擄C to +85擄C and -55擄C to
+125擄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
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