RHOPOINT COMPONENTS
VRE120/121/122
Precision High Temperature
Reference Supplies
Tel: +44/01883 717988, Fax: +44/01883 712938, Email: sales@rhopointcomponents.com Website: www.rhopointcomponents.com
FEATURES
•
WIDE OPERATING RANGE: -55°C TO +180°C
•
EXTREMELY LOW DRIFT: 1 ppm /°C -55°C to +150°C
•
LOW WARM-UP DRIFT: 1 ppm Typ.
•
EXCELLENT STABILITY: 6 ppm / 1000 Hrs. Typ.
•
EXCELLENT LINE REGULATION: 3 ppm / V Typ.
•
HERMETIC 14-PIN CERAMIC DIP
•
PIN & FUNCTION COMPATIBLE WITH
AD2700, AD2710, MAX 670/671 REFERENCES
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
•
GEOLOGICAL EQUIPMENT
DESCRIPTION
VRE120 series references are designed to operate
over an extremely wide temperature range (-55°C
to +180°C) and still provide excellent accuracy.
The VRE120 provides a +10V output, the VRE121
provides a -10V and the VRE122 provides a ±10V
output. All types are available in commercial (C
suffix) and military (M suffix) models. The "M"
models are screened for high reliability and quality.
Two accuracy grades (standard and "A") are
available for all models.
SELECTION GUIDE
Max. Volt
Deviation
(-55°C
to +150°C)
Type
Output
Max. Volt
Deviation
(150°C
to +180°C)
Initial
Accuracy
(Max)
VRE120C
VRE120CA
VRE120M
VRE120MA
+10V
+10V
+10V
+10V
1.5mV
1.0mV
1.5mV
1.0mV
5.0mV
3.0mV
5.0mV
3.0mV
1.0mV
0.5mV
1.5mV
0.8mV
The adjacent selector guide shows the limits of the
VRE121C
-10V
1.5mV
5.0mV
1.0mV
most important parameters of the VRE120 series
VRE121CA -10V
1.0mV
3.0mV
0.5mV
voltage references. The maximum voltage
VRE121M
-10V
1.5mV
5.0mV
1.5mV
deviation increases linearly with temperature from
VRE121MA -10V
1.0mV
3.0mV
0.8mV
the 150°C specification to the 180°C specification.
For example, the A grade maximum voltage
VRE122C
±10V
1.5mV
5.0mV
1.0mV
deviation of 1mV increases to 2mV at 175°C and is
VRE122CA ±10V
1.0mV
3.0mV
0.5mV
3mV at 180°C. This degree of accuracy over such
VRE122M
±10V
1.5mV
5.0mV
1.5mV
a large temperature range has been achieved
VRE122MA ±10V
1.0mV
3.0mV
0.8mV
using the Thaler Corporation patented multipoint
compensation technique.
All devices are packaged in 14-pin hermetic ceramic packages for maximum long term stability. They are pin
and function compatible with other Thaler references and AD2700, AD2710 and MAX 670/671 References
Superior stability, accuracy, and quality make these references ideal for precision applications such as A/D
and D/A converters, high-accuracy test and measurement instrumentation, and transducer excitation.
VRE120DS REV. C SEPT 1994
4-56
RHOPOINT [ RHOPOINT COMPONENTS ]
