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

-7

26

59

92

125

-1500

-750

0

750

1500

VREF = 1.8V

VREF = 2.048V

VREF = 2.5V

VREF = 3.3V

VREF = 5V

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

Initial Accuracy (%)

0

10

20

30

40

50

-0.05

-0.03

-0.01

0.01

0.03

0.05

Figure 7-2. 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 7-3. 0.1 Hz to 10 Hz Noise Distribution

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

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 7-4. 0.1 Hz to 10 Hz Noise Distribution

(VREF = 2.5 V, CNR = Open, IL = 0 mA)

Noise Bin (ppmp-p)

0

16

32

48

64

80

1.2

2

2.8 3.6 4.4 5.2

6

6.8 7.6 8.4 9.2 10 10.8

IL = 0mA

IL = 1mA

IL = 10mA

Figure 7-5. 0.1 Hz to 10 Hz Noise Distribution

(VREF = 2.5 V, CL = 1 μF, CNR = Open)

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

CNR = Open

CNR = 1uF

CNR = 10uF

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

(VREF = 2.5 V, CL = 1 μF, IL = 0 mA)

REF35-Q1

SNAS845 – AUGUST 2023

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