(VRE125 / VRE127) Precision High Temperature Reference Supplies - THC
Description
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VRE125/127
Precision High Temperature Reference Supplies
RHOPOINT COMPONENTS LTD.
, Holland Road,Hurst Green, Oxted, Surrey, RH8 0AX.
Tel: +44 (0)1883 717988
FEATURES
• 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
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
DESCRIPTION
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.
SELECTION GUIDE
Max.
Volt Deviation (-55°C to +150°C) Max.
Volt Deviation (150°C to +200°C) Initial Error (Max)
Type VRE125C VRE125CA VRE125M VRE125MA VRE127C VRE127CA VRE127M VRE127MA
Output +5V +5V +5V +5V ±5V ±5V ±5V ±5V
±0.
9mV ±0.
6mV ±0.
9mV ±0.
6mV ±0.
9mV ±0.
6mV ±0.
9mV ±0.
6mV
±3.
0mV ±2.
0mV ±3.
0mV ±2.
0mV ±3.
0mV ±2.
0mV ±3.
0mV ±2.
0mV
±0.
8mV ±0.
4mV ±0.
8mV ±0.
4mV ±0.
8mV ±0.
4mV ±0.
8mV ±0.
4mV
The accuracy of the VRE125/127 series over 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 shif...
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