AD7983 Просмотр технического описания (PDF) - Analog Devices

Номер в каталоге

Компоненты Описание

производитель

AD7983

16-Bit, 1.33 MSPS PulSAR ADC in MSOP/LFCSP

Analog Devices 

Data Sheet

TYPICAL PERFORMANCE CHARACTERISTICS

VDD = 2.5 V, REF = 5 V, VIO = 3.3 V, unless otherwise noted.

1.25

POSITIVE INL: 0.30LSB

1.00

NEGATIVE INL: –0.37LSB

0.75

0.50

0.25

0

–0.25

–0.50

–0.75

–1.00

–1.25

0

16384

32768

CODE

49152

Figure 5. Integral Nonlinearity vs. Code

65536

120k

100k

96765

80k

60k

40k

20k

16604 17590

0 0 0 0 58

0

55 0 0 0 0

7FB6 7FB7 7FB8 7FB9 7FBA 7FBB 7FBC 7FBD 7FBE 7FBF 7FC0 7FC1 7FC2

CODE IN HEX

Figure 6. Histogram of a DC Input at the Code Center

0

–20

–40

–60

–80

–100

–120

–140

–160

–180

0

fS = 1.33MSPS

fIN = 10kHz

SNR = 91.6dB

THD = –114.9dB

SFDR = 113.8dB

SINAD = 91.6dB

100

200

300

400

500

600

FREQUENCY (kHz)

Figure 7. FFT Plot

AD7983

1.00

POSITIVE DNL: 0.14LSB

0.75

NEGATIVE DNL: –0.14LSB

0.50

0.25

0

–0.25

–0.50

–0.75

–1.00

0

16384

32768

CODE

49152

Figure 8. Differential Nonlinearity vs. Code

65536

80k

70k

67532

61565

60k

50k

40k

30k

20k

10k

0 0 0 0 829

0

1146 0 0 0 0 0

7FF7 7FF8 7FF9 7FFA 7FFB 7FFC 7FFD 7FFE 7FFF 8000 8001 8002 8003

CODE IN HEX

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

95

94

93

92

91

90

89

88

87

86

85

–10 –9 –8 –7 –6 –5 –4 –3 –2 –1 0

INPUT LEVEL (dB of Full Scale)

Figure 10. SNR vs. Input Level

Rev. C | Page 9 of 25

Share Link: