7.6 Typical Characteristics

at TA = 25°C, VIN = VEN = VREF + 0.3 V, IL = 0 mA, CL = 10 µF, CIN = 0.1 µF (unless otherwise noted)

Temperature (

C)

-40

0

40

80

120

-250

0

250

500

750

1000

VREF = 5V

VREF = 2.5V

VREF = 1.25V

.

Figure 7-1. Output Voltage Drift vs Free-Air Temperature

Temperature Coefficient (ppm/

C)

0

10

20

30

40

50

0

1

2

3

4

5

6

7

8

9

10

11

−40

C to 85C

−40

C to 105C

Figure 7-2. Temperature Coefficient Distribution (VREF = 1.25 V)

Temperature Coefficient (ppm/

C)

0

12

24

36

48

60

0

1

2

3

4

5

6

7

8

9

10

11

−40

C to 85C

−40

C to 105C

Figure 7-3. Temperature Coefficient Distribution (VREF = 2.5 V)

Temperature Coefficient (ppm/

C)

0

10

20

30

40

50

0

1

2

3

4

5

6

7

8

9

10

11

−40

C to 85C

−40

C to 105C

Figure 7-4. Temperature Coefficient Distribution (VREF = 5.0 V)

Initial Accuracy (%)

0

12

24

36

48

60

-0.05

-0.03

-0.01

0.01

0.03

0.05

Figure 7-5. Initial Accuracy Distribution

Noise Bin (ppmp-p)

0

8

16

24

32

40

1.2

2

2.8 3.6 4.4 5.2

6

6.8 7.6 8.4 9.2 10 10.8

CL = 10uF

CL = 1uF

Figure 7-6. 0.1 Hz to 10 Hz Noise Distribution

(VREF = 1.25 V, CNR = Open, IL = 0 mA)

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REF35

SNAS809A – DECEMBER 2021 – REVISED AUGUST 2022

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