VRE120 RHOPOINT [RHOPOINT COMPONENTS], VRE120 Datasheet

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VRE120

Manufacturer Part Number
VRE120
Description
Precision High Temperature Reference Supplies
Manufacturer
RHOPOINT [RHOPOINT COMPONENTS]
Datasheet
RHOPOINT COMPONENTS
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.
The adjacent selector guide shows the limits of the
most important parameters of the VRE120 series
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.
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.
DESCRIPTION
FEATURES
AD2700, AD2710, MAX 670/671 REFERENCES
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
Tel: +44/01883 717988, Fax: +44/01883 712938, Email: sales@rhopointcomponents.com Website: www.rhopointcomponents.com
references.
The
maximum
VRE120/121/122
Precision High Temperature
Reference Supplies
voltage
VRE121C
VRE121CA
VRE121M
VRE121MA
VRE122C
VRE122CA
VRE122M
VRE122MA
VRE120C
VRE120CA
VRE120M
VRE120MA
Type
APPLICATIONS
REFERENCE
MEASUREMENT INSTRUMENTS
PRECISION A/D and D/A CONVERTERS
TRANSDUCER EXCITATION
ACCURATE COMPARATOR THRESHOLD
HIGH RESOLUTION SERVO SYSTEMS
DIGITAL VOLTMETERS
HIGH PRECISION TEST and
GEOLOGICAL EQUIPMENT
Output
+10V
+10V
+10V
+10V
-10V
-10V
-10V
-10V
±10V
±10V
±10V
±10V
SELECTION GUIDE
Max. Volt
Deviation
to +150°C)
1.5mV
1.0mV
1.5mV
1.0mV
1.5mV
1.0mV
1.5mV
1.0mV
1.5mV
1.0mV
1.5mV
1.0mV
(-55°C
Max. Volt
Deviation
to +180°C)
5.0mV
3.0mV
5.0mV
3.0mV
5.0mV
3.0mV
5.0mV
3.0mV
5.0mV
3.0mV
5.0mV
3.0mV
(150°C
VRE120DS REV. C SEPT 1994
Accuracy
1.0mV
0.5mV
1.5mV
0.8mV
1.0mV
0.5mV
1.5mV
0.8mV
1.0mV
0.5mV
1.5mV
0.8mV
(Max)
Initial
4-56

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VRE120 Summary of contents

Page 1

... 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" ...

Page 2

... Continuous * +10 * -10 * ±10 * 1.0 0 1.5 1.0 5 VRE120/121/122 M MA TYP MAX MIN TYP MAX * * * * * * * * * * * * * * * * * * * * 1.5 0 VRE120DS REV. C SEPT 1994 UNITS V °C ° ppm mV mV ppm/1000hr. Vpp mA ppm/V ppm/mA mV V/°C/ ...

Page 3

... VRE120/121 Output Current (mA) VRE122 POSITIVE OUTPUT JUNCTION TEMP. RISE VS. OUTPUT CURRENT Output Current (mA) NEGATIVE OUTPUT JUNCTION TEMP. RISE VS. OUTPUT CURRENT Output Current (mA) V vs. TEMPERATURE OUT Temperature VRE120/121/122MA PSRR VS. FREQUENCY Frequency (Hz) PSRR VS. FREQUENCY Frequency (Hz) PSRR VS. FREQUENCY Frequency (Hz) VRE120DS REV. C SEPT.1994 4-58 ...

Page 4

... Thaler Corporation has developed a nonlinear compensation network of thermistors and resistors that is used in the VRE120 series voltage references. This proprietary network eliminates most of the nonlinearity in the voltage vs. temperature function. By then adjusting the slope, Thaler Corporation produces a very stable voltage over wide temperature ranges ...

Page 5

... S .085 .105 2.1 P .004 .006 0.10 TOP VIEW +ADJ. -ADJ. -10V +10V -ADJ. +ADJ. VRE122 +PS - REF. GND NC GND NC INCHES MILLIMETER MAX DIM MIN MAX MIN MAX 12.7 A .120 .155 3.0 4.0 5.4 Q .015 .035 0.4 0.9 20.4 Q1 N/A .030 N/A 0.7 0.5 C .009 .012 0.2 0.3 1.0 G1 .290 .310 7.3 7.8 2.6 2.6 0.15 VRE120DS REV. C SEPT 1994 4-60 ...

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