THALER VRE112MA, VRE112M, VRE112CA, VRE112C, VRE111MA Datasheet

• 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 • [phone]

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