AD7683 查看數據表（PDF） - Analog Devices

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AD7683

16-Bit, 100 kSPS, Single-Ended PulSAR ADC in MSOP/QFN

Analog Devices 

Data Sheet

TYPICAL PERFORMANCE CHARACTERISTICS

3

POSITIVE INL = +0.43LSB

NEGATIVE INL = –0.97LSB

2

1

0

–1

–2

–3

0

16384

32768

49152

CODE

Figure 8. Integral Nonlinearity vs. Code

65536

7000

6000

62564

VDD = REF = 2.5V

5000

4000

3000

2000

35528

25440

1000

2755

0 0 1 50

0

4604

130 0 0

79FD 79FE 79FF 7A00 7A01 7A02 7A03 7A04 7A05 7A06 7A07 7A08

CODE IN HEX

Figure 9. Histogram of a DC Input at the Code Center

0

–20

–40

–60

–80

–100

–120

–140

–160

–180

0

16384 POINT FFT

VDD = REF = 5V

ffSIN==12000.k4S3kPHSz

SNR = 92.7dB

THD = –105.7dB

SFDR = –106.4dB

10

20

30

40

50

FREQUENCY (kHz)

Figure 10. FFT Plot

AD7683

3

POSITIVE DNL = +0.43LSB

NEGATIVE DNL = –0.41LSB

2

1

0

–1

–2

–3

0

16384

32768

49152

CODE

Figure 11. Differential Nonlinearity vs. Code

65536

120000

100000

102287

VDD = REF = 5V

80000

60000

40000

20000

0

0

7A0E

0

7A0F

15152

13619

6

7A10 7A11 7A12 7A13

CODE IN HEX

8

7A14

0

7A15

0

7A16

Figure 12. Histogram of a DC Input at the Code Center

0

–20

–40

–60

–80

–100

–120

–140

–160

–180

0

16384 POINT FFT

VDD = REF = 2.5V

ffSIN==12000.k4S3kPHSz

SNR = 88.7dB

THD = –102.6dB

SFDR = –104.6dB

10

20

30

40

50

FREQUENCY (kHz)

Figure 13. FFT Plot

Rev. B | Page 9 of 16

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