LM2851.2, LM3851.2, LM385B1.2

MICROPOWER VOLTAGE REFERENCES

SLVS075H − APRIL 1989 − REVISED FEBRUARY 2005

5

POST OFFICE BOX 655303

Figure 1

0

0.2

0.4

0.6

0.8

1

1.2

1.4

TA = −55°C to 125°C

VR − Reverse Voltage − V

0.1

1

10

100

REVERSE CURRENT

vs

REVERSE VOLTAGE

Figure 2

10

1

0.1

0.01

−4

0

4

8

12

16

IR − Reverse Current − mA

REFERENCE VOLTAGE CHANGE

vs

REVERSE CURRENT

100

TA = −55°C to 125°C

FORWARD VOLTAGE

vs

FORWARD CURRENT

Figure 3

0.01

0.1

1

10

100

0.8

1.2

0.4

0

IF − Forward Current − mA

TA = 25°C

Figure 4

105

125

85

65

45

25

5

−15

−35

−55

1.225

1.23

1.235

1.24

1.245

TA − Free-Air Temperature − °C

REFERENCE VOLTAGE

vs

FREE-AIR TEMPERATURE

1.220

† Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.