AD7175-8 데이터 시트보기 (PDF) - Analog Devices

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AD7175-8

24-Bit, 8-/16-Channel, 250 kSPS, Sigma-Delta ADC with True Rail-to-Rail Buffers

Analog Devices 

Data Sheet

AD7175-8

TYPICAL PERFORMANCE CHARACTERISTICS

AVDD1 = 5 V, AVDD2 = 5 V, IOVDD = 3.3 V, TA = 25°C, unless otherwise noted.

8390000

1000

8389500

900

800

8389000

700

8388500

600

8388000

500

8387500

400

300

8387000

200

8386500

100

8386000

0

100 200 300 400 500 600 700 800 900 1000

SAMPLE NUMBER

Figure 5. Noise (Analog Input Buffers Disabled, VREF = 5 V,

Output Data Rate = 5 SPS)

0

8388460 8388461 8388462 8388463 8388464 8388465 8388466

ADC CODE

Figure 8. Histogram (Analog Input Buffers Disabled, VREF = 5 V,

Output Data Rate = 5 SPS)

8388480

120

8388475

100

8388470

80

8388465

60

8388460

40

8388455

8388450

20

8388445

0

100 200 300 400 500 600 700 800 900 1000

SAMPLE NUMBER

Figure 6. Noise (Analog Input Buffers Disabled, VREF = 5 V,

Output Data Rate = 10 kSPS)

8388520

8388500

8388480

8388460

8388440

8388420

8388400

0

100 200 300 400 500 600 700 800 900 1000

SAMPLE NUMBER

Figure 7. Noise (Analog Input Buffers Disabled, VREF = 5 V,

Output Data Rate = 250 kSPS)

0

ADC CODE

Figure 9. Histogram (Analog Input Buffers Disabled, VREF = 5 V,

Output Data Rate = 10 kSPS)

45

40

35

30

25

20

15

10

5

0

ADC CODE

Figure 10. Histogram (Analog Input Buffers Disabled, VREF = 5 V,

Output Data Rate = 250 kSPS)

Rev. 0 | Page 11 of 64

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