REF-01/REF-02

1

15V

–15V

412

Ω*

1/2W

357

Ω*

1/2W

5V

350

Ω

BRIDGE

ACTIVE

ELEMENT

R2

20k

R4

20k

R5

2M

R6

2M**

R3

2M

–

+

GAIN = 100

A2

LT1001

A1

†

LT307

IN

OUT

GND

REF-02

REDUCES REFERENCE AND AMPLIFIER LOADING.

IF R6 = R3, BRIDGE IS NOT LOADED BY R2 AND R4.

*

**

†

TA01a

–5V

APPLICATIO S

DESCRIPTIO

FEATURES

TYPICAL APPLICATIO

±0.3%

■

Low Drift—5ppm/

°C Typ

■

Temperature Output—REF-02

Precision

Voltage References

The REF-01/REF-02 are precision 10V and 5V bandgap

references which provide stable output voltages over a

wide range of operating conditions. Output voltage is

accurate to

±0.3%withalow5ppm/°Ctypicaltemperature

coefficient. The REF-01 and REF-02 are excellent choices

for applications where low drift, moderate accuracy, low

power consumption and low cost are considerations.

The REF-02 includes a temperature output pin which

provides a linear voltage proportional to absolute tem-

perature.

For lower drift and higher accuracy references, please see

the LT1019 and LT1021 data sheets.

, LTC and LT are registered trademarks of Linear Technology Corporation.

Ultra Linear Strain Gauge Amplifier

Output Voltage Temperature Drift

TEMPERATURE (

°C)

–50

1.003

1.002

1.001

1.000

0.999

0.998

0.997

25

75

TA01b

–25

0

50

100

125

0

°C TO 70°C BOX GUARANTEED FOR

REF-01E AND REF-02E (8.5ppm/

°C)

FULL TEMP RANGE BOX GUARANTEED FOR

REF-01A AND REF-02A (8.5ppm/

°C)