ADS8699IPWR datasheet(15/74 Pages) TI2

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6.12 Typical Characteristics

at TA = 25°C, AVDD = 5 V, DVDD = 3 V, VREF = 4.096 V (internal), and maximum throughput (unless otherwise noted)

Input Voltage (V)

-12.288

-8.192

-4.096

4.096

8.192

12.288

-15

-9

-3

D001

± 12.288 V

± 10.24 V

± 6.144 V

± 5.12 V

± 2.56 V

0-12.288 V

0-10.24 V

0-6.144 V

0-5.12 V

Figure 6-9. Input I-V Characteristic Across Input Ranges

Input Voltage (V)

-12.288

-8.192

-4.096

4.096

8.192

12.288

-15

-9

-3

D002

-40C

25C

125C

Range = ±12.288 V

Figure 6-10. Input I-V Characteristic Across Temperature

Free- Air Temperature (qC)

-40

-7

125

-400

-200

200

400

D003

±12.288 V

±10.24 V

±6.144 V

±5.12 V

±2.56 V

0-12.288 V

0-10.24 V

0-6.144 V

0-5.12 V

Figure 6-11. Input Impedance Drift vs Temperature

Input Impedance (M:)

200

400

600

800

1000

1200

1400

1600

1.02 1.06

1.1

1.14 1.18 1.22 1.26

1.3

1.34 1.38

D004

Number of samples = 3398

Figure 6-12. Typical Distribution of Input Impedance

3000

6000

9000

12000

15000

D001

Mean = 131076.2, sigma = 1.9, input = 0 V

Figure 6-13. DC Histogram for Mid-Scale Inputs (±12.288 V)

3000

6000

9000

12000

15000

D002

Mean = 131066.8, sigma = 2.04, input = 0 V

Figure 6-14. DC Histogram for Mid-Scale Inputs (±10.24 V)

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ADS8691, ADS8695, ADS8699

SBAS777B – DECEMBER 2016 – REVISED MARCH 2021

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