6.6 Typical Characteristics (continued)

At TA = 25°C, VIN = 10V, VHET = 30V, CREF_Z = 10μF, CVDD = 1μF, (unless otherwise noted)

Time(seconds)

-25

0

25

50

75

100

125

150

175

200

0

100

200

300

400

VHET = 10V

VHET = 15V

VHET = 20V

VHET = 30V

VHET = 40V

Figure 6-7. Startup Heater Current

IHET vs Time

Time(seconds)

25

50

75

100

125

150

175

200

0

20

40

60

80

100

120

VHET = 10V

VHET = 15V

VHET = 20V

VHET = 30V

VHET = 40V

Figure 6-8. Startup Heater Current (Zoomed View)

IHET vs Time

Noise (ppmp-p)

0

10

20

30

40

0.084

0.096

0.108

0.12

0.132

0.144

0.156

Figure 6-9. 0.1Hz to 10Hz Voltage Noise Distribution

Frequency(Hz)

1x100

1x101

1x102

1x103

1x104

1x105

0

50

100

150

200

250

Figure 6-10. Noise Density vs Frequency

Solder Shift (mV)

0

5

10

15

20

25

30

35

40

45

50

55

Figure 6-11. Solder Shift Distribution

Thermal Hysteresis (ppm)

0

0.5

1

1.5

2

2.5

3

0

10

20

30

40

50

Figure 6-12. Thermal Hysteresis (Cycle 1) Distribution

TA = 0°C to 70°C

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REF80

SNAS856A – SEPTEMBER 2024 – REVISED MARCH 2025

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