8.2 Long-Term Stability

The long term stability of the REF20xx was collected on 32 parts that were soldered onto Printed Circuit

Boards without any slots or special layout considerations. The boards were then placed into an oven with air

temperature maintained at TA = 35°C. The VREF output of the 32 parts was measured regularly. Typical long term

stability is as shown in Figure 8-4.

Time (hr)

0

100

200

300

400

500

600

700

800

900 1000

-10

-5

0

5

10

15

20

25

30

35

40

45

50

Figure 8-4. Long Term Stability – 1000 hours (VREF)

REF2025, REF2030, REF2033, REF2041

SBOS600E – JULY 2018 – REVISED FEBRUARY 2022

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