R H O P O IN T C O M P O N E N T S VRE120/121/122
Precision High Temperature
Reference Supplies
Tel: +44/01883 717988, Fax: +44/01883 712938, Email: sales@rhopointcomponents.com Website: www.rhopointcomponents.com
APPLICATIONS
FEATURES
· PRECISION A/D and D/A CONVERTERS
· WIDE OPERATING RANGE: -55°C TO +180°C
· TRANSDUCER EXCITATION
· EXTREMELY LOW DRIFT: 1 ppm /°C -55°C to +150°C
· LOW WARM-UP DRIFT: 1 ppm Typ.
· ACCURATE COMPARATOR THRESHOLD
REFERENCE
· EXCELLENT STABILITY: 6 ppm / 1000 Hrs. Typ.
· EXCELLENT LINE REGULATION: 3 ppm / V Typ.
· HERMETIC 14-PIN CERAMIC DIP
· HIGH RESOLUTION SERVO SYSTEMS
· DIGITAL VOLTMETERS
· HIGH PRECISION TEST and
MEASUREMENT INSTRUMENTS
· PIN & FUNCTION COMPATIBLE WITH
AD2700, AD2710, MAX 670/671 REFERENCES
· 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
Initial
Accuracy
(Max)
Max. Volt
Deviation
(150°C
Max. Volt
Deviation
(-55°C
Type
Output
+10V
to +180°C)
to +150°C)
VRE120C
1.5mV
1.0mV
1.5mV
1.0mV
5.0mV
3.0mV
5.0mV
3.0mV
1.0mV
0.5mV
1.5mV
0.8mV
VRE120CA +10V
VRE120M +10V
VRE120MA +10V
The adjacent selector guide shows the limits of the
most important parameters of the VRE120 series
voltage references. The maximum voltage
deviation increases linearly with temperature from
the 150°C specification to the 180°C specification.
For example, the A grade maximum voltage
deviation of 1mV increases to 2mV at 175°C and is
3mV at 180°C. This degree of accuracy over such
a large temperature range has been achieved
using the Thaler Corporation patented multipoint
compensation technique.
VRE121C
-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
VRE121CA -10V
VRE121M -10V
VRE121MA -10V
VRE122C ±10V
VRE122CA ±10V
VRE122M ±10V
VRE122MA ±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
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