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

SELECTION GUIDE

provide ultrastable +3.000V (VRE117), -3.000V

(VRE118)

and

±3.000V (VRE119)

outputs with

Type

Output

Temperature

Max. Volt

±0.200 mV initial accuracy and temperature

Operating Range

Deviation

coefficient

as

low as

0.6

ppm/°C

over the full

VRE117C

+3.0V

-25°C to +85°C

200 µV

military temperature range. This improvement in

VRE117CA

+3.0V

-25°C to +85°C

100 µV

accuracy

is

made

possible

by

a

unique,

VRE117M

+3.0V

-55°C to +125°C

400 µV

proprietary

multipoint

laser

compensation

VRE117MA

+3.0V

-55°C to +125°C

200 µV

technique developed by Thaler Corporation.

Significant improvements have been made in

VRE118C

-3.0V

-25°C to +85°C

200 µV

other performance parameters as well, including

VRE118CA

-3.0V

-25°C to +85°C

100 µV

initial accuracy, warm-up drift, line regulation, and

VRE118M

-3.0V

-55°C to +125°C

400 µV

long-term stability, making the VRE117 series the

VRE118MA

-3.0V

-55°C to +125°C

200 µV

most accurate

and

stable

3.0V

reference

VRE119C

±3.0V

-25°C to +85°C

200 µV

available.

VRE119CA

±3.0V

-25°C to +85°C

100 µV

VRE117/118/119 devices are available in two

VRE119M

±3.0V

-55°C to +125°C

400 µV

operating

temperature

ranges,

-25°C

to +85°C

VRE119MA

±3.0V

-55°C to +125°C

200 µV

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.

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

VRE117/118/119

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

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 (1)

200

100

400

200

µV

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

(2)

POWER SUPPLY CURRENTS

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