VRE125/127
Precision High Temperature
Reference Supplies
•• WIDE OPERATING RANGE: -55°C to +200°C
•• VERY HIGH ACCURACY: 5.000 V ±0.4 mV
•• EXTREMELY LOW DRIFT: 0.6 mV (-55°C to +150°C)
•• EXCELLENT STABILITY: 6 ppm / 1000Hrs.
•• EXCELLENT LINE REGULATION: 6 ppm / V Typ.
•• HERMETIC 14-PIN DIP
DESCRIPTION
APPLICATIONS
•• PRECISION A/D and D/A CONVERTERS
•• ACCURATE COMPARATOR
THRESHOLD VOLTAGE
•• HIGH RESOLUTION SERVO SYSTEMS
•• HIGH TEMPERATURE TEST and
MEASUREMENT SYSTEMS
•• TRANSDUCER EXCITATION
•• GEOLOGICAL EQUIPMENT
FEATURES
VRE125 series references are designed to
operate over an extremely wide temperature
range
(-55°C
to
+200°C)
and
still
provide
excellent accuracy. The VRE125 provides a +5V
output and the VRE127 provides a ±5V output.
All types are available in commercial (C suffix)
and
military
(M
suffix)
models.
They
are
hermetically sealed and are screened for high
reliability and quality. Two accuracy grades
(standard and A) are available in both models.
The adjacent selector guide shows the limits of
the
most
important
parameters
of
the
VRE125/127 series references.
The accuracy of the VRE125/127 series over
temperature is achieved by using Thaler
2.0 mV (-55°C to +200°C)
SELECTION GUIDE
Type
Output
Max. Volt
Deviation
(-55°C
to +150°C)
Initial
Error
(Max)
VRE127C
±5V
±0.9mV
±3.0mV
±0.8mV
VRE127CA
±5V
±0.6mV
±2.0mV
±0.4mV
VRE127M
±5V
±0.9mV
±3.0mV
±0.8mV
VRE127MA
±5V
±0.6mV
±2.0mV
±0.4mV
VRE125C
+5V
±0.9mV
±3.0mV
±0.8mV
VRE125CA
+5V
±0.6mV
±2.0mV
±0.4mV
VRE125M
+5V
±0.9mV
±3.0mV
±0.8mV
VRE125MA
+5V
±0.6mV
±2.0mV
±0.4mV
Max. Volt
Deviation
(150°C
to +200°C)
Corporation's patented multi-point compensation technique. The stability of the VRE125 series is enhanced
by using a zener diode instead of a bandgap reference, which is typically used in 5V references. Zener
diodes have better long term stability and don't suffer the significant shifts caused by temperature cycling
that bandgap references do.
Other performance parameters, such as warm-up drift and long term stability are better than competitive
models.
Superior stability, accuracy, and quality make these references ideal for high temperature applications such
as A/D and D/A converter references.
VRE125DS REV. C SEPT 1994
RHOPOINT COMPONENTS LTD., Holland Road,Hurst Green, Oxted, Surrey, RH8 0AX. Tel: +44 (0)1883 717988
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