AD7982 datasheet(9/29 Pages) AD

No. de pieza	AD7982

Descripción Electrónicos	Dual Differential 16-Bit, 1 MSPS PulSAR ADC 12.0 mW in QSOP

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AD7903

Data Sheet

Rev. A | Page 8 of 28

TYPICAL PERFORMANCE CHARACTERISTICS

VDD = 2.5 V, VREF = 5.0 V, VIO = 3.3 V, TA = 25°C, fSAMPLE = 1 MSPS, unless otherwise noted.

Figure 5. Integral Nonlinearity vs. Code, VREF = 5 V

Figure 6. Integral Nonlinearity vs. Code, VREF = 2.5 V

Figure 7. FFT Plot, VREF = 5 V

Figure 8. Differential Nonlinearity vs. Code, VREF = 5 V

Figure 9. Differential Nonlinearity vs. Code, VREF = 2.5 V

Figure 10. FFT Plot, VREF = 2.5 V

0

65536

16384

32768

49152

1.0

–1.0

–0.8

–0.6

–0.4

–0.2

0

0.2

0.4

0.6

0.8

CODE

POSITIVE INL: +0.35 LSB

NEGATIVE INL: –0.39 LSB

0

65536

16384

32768

49152

POSITIVE INL: +0.39 LSB

NEGATIVE INL: –0.44 LSB

1.0

–1.0

–0.8

–0.6

–0.4

–0.2

0

0.2

0.4

0.6

0.8

CODE

0

500

100

200

300

400

0

–180

–160

–140

–120

–100

–80

–60

–40

–20

FREQUENCY (kHz)

fSAMPLE = 1MSPS

fIN = 10kHz

SNR = 95.04dB

THD = –117.3dB

SFDR = 114.6dB

SINAD = 95.02dB

1.0

–1.0

–0.8

–0.6

–0.4

–0.2

0

0.2

0.4

0.6

0.8

CODE

0

65536

16384

32768

49152

POSITIVE DNL: +0.31 LSB

NEGATIVE DNL: –0.38 LSB

1.0

–1.0

–0.8

–0.6

–0.4

–0.2

0

0.2

0.4

0.6

0.8

CODE

0

65536

16384

32768

49152

POSITIVE DNL: +0.39 LSB

NEGATIVE DNL: –0.39 LSB

0

–180

–160

–140

–120

–100

–80

–60

–40

–20

FREQUENCY (kHz)

fSAMPLE = 1MSPS

fIN = 10kHz

SNR = 91.96dB

THD = –110.2dB

SFDR = 114.5dB

SINAD = 91.91dB

0

500

100

200

300

400

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