THALER VRE112MA, VRE112M, VRE112CA, VRE112C, VRE111MA Datasheet

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• VERY HIGH ACCURACY: 2.500 V OUTPUT ±200 µV

• EXTREMELY LOW DRIFT: 0.8 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

VRE110/111/112

Precision Reference Supplies

DESCRIPTION

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

FEATURES

SELECTION GUIDE

VRE110 Series Precision Voltage References provide ultrastable +2.500V (VRE110), -2.500V (VRE101) and ±2.500V (VRE102) outputs with ±200 µV initial accuracy and temperature coefficient as low as 0.8 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 VRE110 series the most accurate and stable 2.5V reference available.

VRE110/111/112 devices are available in two operating temperature ranges, -25°C to +85°C and -55°C to +125°C, and two performance

Type

Output

Temperature

Operating Range

Max. Volt Deviation

VRE110C +2.5V -25°C to +85°C 200 µV VRE110CA +2.5V -25°C to +85°C 100 µV VRE110M +2.5V -55°C to +125°C 400 µV VRE110MA +2.5V -55°C to +125°C 200 µV

VRE111C -2.5V -25°C to +85°C 200 µV VRE111CA -2.5V -25°C to +85°C 100 µV VRE111M -2.5V -55°C to +125°C 400 µV VRE111MA -2.5V -55°C to +125°C 200 µV

VRE112C ±2.5V -25°C to +85°C 200 µV VRE112CA ±2.5V -25°C to +85°C 100 µV VRE112M ±2.5V -55°C to +125°C 400 µV VRE112MA ±2.5V -55°C to +125°C 200 µV

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.

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.

VRE110DS REV. D NOV 2000

THALER CORPORATION • 2015 N. FORBES BOULEVARD • TUCSON, AZ. 85745 • (520) 882-4000

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

VRE110 +2.5 * * * V VRE111 -2.5 * * * V VRE112 ±2.5 * * * 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 Long-Term Stability 6 * * * ppm/1000hr. Noise (.1-10Hz) 1.0 * * * µVpp

OUTPUT CURRENT

Range ±10 * * * mA

REGULATION

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

OUTPUT ADJUSTMENT

Range 20 * * * mV Temperature Coefficient 1 * * * µV/°C/mV

POWER SUPPLY CURRENTS

VRE110 +PS 5 7 * * * * * * mA VRE110/111 -PS 5 7 * * * * * * mA VRE112 +PS 7 9 * * * * * * mA VRE112 -PS 4 6 * * * * * * mA

VRE110/111/112

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.

(1)

(2)

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

ELECTRICAL SPECIFICATIONS

VRE110DS REV. D NOV 2000

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