THALER VRE118C, VRE117MA, VRE117M, VRE117CA, VRE117C Datasheet

VRE117/118/119

Precision
Reference Supplies

THALER CORPORATION • 2015 N. FORBES BOULEVARD • TUCSON, AZ. 85745 • [phone]

FEATURES

• VERY HIGH ACCURACY: 3.000 V OUTPUT ±200 µV

• EXTREMELY LOW DRIFT: 0.6 ppm/°C 55°C to +125°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

• MILITARY PROCESSING OPTION

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

DESCRIPTION

VRE117 Series Precision Voltage References
provide ultrastable +3.000V (VRE117), -3.000V
(VRE118) and ±3.000V (VRE119) outputs with
±0.200 mV initial accuracy and temperature
coefficient as low as 0.6 ppm/°C over the full
military temperature range. This improvement in
accuracy is made possible by a unique,
proprietary multipoint laser compensation
technique developed by Thaler Corporation.
Significant improvements have been made in
other performance parameters as well, including
initial accuracy, warm-up drift, line regulation, and
long-term stability, making the VRE117 series the
most accurate and stable 3.0V reference
available.

VRE117/118/119 devices are available in two
operating temperature ranges, -25°C to +85°C
and -55°C to +125°C, and two performance
grades. All devices are packaged in 14-pin hermetic ceramic packages for maximum long-term stability. "M"
versions are screened for high reliability and quality.

Type

VRE117C +3.0V -25°C to +85°C 200 µV
VRE117CA +3.0V -25°C to +85°C 100 µV
VRE117M +3.0V -55°C to +125°C 400 µV
VRE117MA +3.0V -55°C to +125°C 200 µV

VRE118C -3.0V -25°C to +85°C 200 µV
VRE118CA -3.0V -25°C to +85°C 100 µV
VRE118M -3.0V -55°C to +125°C 400 µV
VRE118MA -3.0V -55°C to +125°C 200 µV

VRE119C ±3.0V -25°C to +85°C 200 µV
VRE119CA ±3.0V -25°C to +85°C 100 µV
VRE119M ±3.0V -55°C to +125°C 400 µV
VRE119MA ±3.0V -55°C to +125°C 200 µV

SELECTION GUIDE

Output

Temperature

Operating Range

Max. Volt
Deviation

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.

VRE117DS REV. C NOV 2000

ELECTRICAL SPECIFICATIONS

Vps =±15V, T = 25°C, RL = 10k? unless otherwise noted.

VRE117/118/119

MODEL C CA M MA

PARAMETERS MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS

ABSOLUTE MAXIMUM RATINGS

Power Supply ±13.5 ±22 * * * * * * V
Operating Temperature -25 85 * * -55 125 -55 125 °C
Storage Temperature -65 150 * * * * * * °C
Short Circuit Protection Continuous * * *

OUTPUT VOLTAGE

VRE117 +3.0 * * * V
VRE118 -3.0 * * * V
VRE119 ±3.0 * * * V

OUTPUT VOLTAGE ERRORS

Initial Error 300 200 300 200 µV
Warmup Drift 2 1 2 1 ppm
Tmin - Tmax 200 100 400 200 µV

(1)

Long-Term Stability 6 * * * ppm/1000hr.
Noise (.1-10Hz) 1.5 * * * µVpp

OUTPUT CURRENT

Range ±10 * * * mA

REGULATION

Line 3 10 * * * * * * ppm/V
Load 3 * * * ppm/mA

OUTPUT ADJUSTMENT

Range 5 * * * mV
Temperature Coefficient 1 * * * µV/°C/mV

POWER SUPPLY CURRENTS

(2)

VRE117 +PS/ -PS 5 7 * * * * * * mA
VRE119 +PS 7 9 * * * * * * mA
VRE118/119 -PS 4 6 * * * * * * mA

NOTES: *Same as C Models.

1.Using the box method, the specified value is the
maximum deviation from the output voltage at 25°C
over the specified operating temperature range.

2.The specified values are unloaded.

VRE117DS REV. C NOV 2000