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PDF VRE125 Datasheet ( Hoja de datos )

Número de pieza VRE125
Descripción (VRE125 / VRE127) Precision High Temperature Reference Supplies
Fabricantes THC 
Logotipo THC Logotipo

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VRE125 Hoja de datos, Descripción, Manual
www.DataSheet4U.com
VRE125/127
Precision High Temperature
Reference Supplies
RHOPOINT COMPONENTS LTD., Holland Road,Hurst Green, Oxted, Surrey, RH8 0AX. Tel: +44 (0)1883 717988
FEATURES
APPLICATIONS
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)
2.0 mV (-55°C to +200°C)
EXCELLENT STABILITY: 6 ppm / 1000Hrs.
EXCELLENT LINE REGULATION: 6 ppm / V Typ.
HERMETIC 14-PIN DIP
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
DESCRIPTION
VRE125 series references are designed to
SELECTION GUIDE
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.
Type
Output
Max. Volt
Deviation
(-55°C
to +150°C)
Max. Volt
Deviation
(150°C
to +200°C)
Initial
Error
(Max)
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.
VRE125C
VRE125CA
VRE125M
VRE125MA
+5V
+5V
+5V
+5V
±0.9mV
±0.6mV
±0.9mV
±0.6mV
±3.0mV
±2.0mV
±3.0mV
±2.0mV
±0.8mV
±0.4mV
±0.8mV
±0.4mV
The adjacent selector guide shows the limits of
the most important parameters of the
VRE127C ±5V ±0.9mV ±3.0mV ±0.8mV
VRE127CA ±5V ±0.6mV ±2.0mV ±0.4mV
VRE125/127 series references.
VRE127M ±5V ±0.9mV ±3.0mV ±0.8mV
The accuracy of the VRE125/127 series over
VRE127MA ±5V ±0.6mV ±2.0mV ±0.4mV
temperature is achieved by using Thaler
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

1 page

VRE125 pdf
EXTERNAL CONNECTIONS
FIGURE 1
3. Optional Fine Adjust for approximately ±10mV. VRE127 center tap connects to -PS.
4. Pin 6 is internally connected to Pin 7 and can be used as Ref. GND.
PIN CONFIGURATION
TOP VIEW
NC
NC
NC
NC
NC
REF. GND
GND
VRE125
FINE ADJ.
+5V
FINE ADJ.
+PS
NC
NC
NC
TOP VIEW
-ADJ.
-5V
-ADJ.
-PS
NC
REF. GND
GND
VRE127
+ADJ.
+5V
+ADJ.
+PS
NC
NC
NC
14-PIN HYBRID
PACKAGE
MECHANICAL
INCHES MILLIMETER
DIM MIN MAX MIN MAX
E .480 .500 12.1 12.7
L .195 .215 4.9 5.4
D .775 .805 19.7 20.4
B .016 .020 0.4 0.5
B1 .038 .042 0.9 1.0
B2 .095 .105 2.4 2.6
S .085 .105 2.1 2.6
P .004 .006 0.10 0.15
INCHES MILLIMETER
DIM MIN MAX MIN MAX
A .120 .155 3.0 4.0
Q .015 .035 0.4 0.9
Q1 N/A .030 N/A 0.7
C .009 .012 0.2 0.3
G1 .290 .310 7.3 7.8
VRE125DS REV. C SEPT 1994

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