AD7781CRZ-REEL Просмотр технического описания (PDF) - Analog Devices

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AD7781CRZ-REEL

20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC

Analog Devices 

AD7781

TYPICAL PERFORMANCE CHARACTERISTICS

524,294

524,293

524,292

524,291

524,290

524,289

524,288

524,287

524,286

0

200

400

600

800

1000

SAMPLE

Figure 8. C Grade Noise (VREF = AVDD, Update Rate = 16.7 Hz, Gain = 128)

500

400

300

200

100

0

524,286

524,288

524,290

CODE

524,292

524,294

Figure 9. C Grade Noise Distribution Histogram

(VREF = AVDD, Update Rate = 16.7 Hz, Gain = 128)

524,281

524,280

524,279

524,278

524,277

524,276

524,275

524,274

0

200

400

600

800

1000

SAMPLE

Figure 10. C Grade Noise (VREF = AVDD, Update Rate = 10 Hz, Gain = 128)

600

400

200

0

524,275

524,277

524,279

CODE

MORE

Figure 11. C Grade Noise Distribution Histogram

(VREF = AVDD, Update Rate = 10 Hz, Gain = 128)

524,289

524,288

524,287

524,286

0

200

400

600

800

1000

SAMPLE

Figure 12. Noise (VREF = AVDD, Update Rate = 16.7 Hz, Gain = 1)

505

500

495

524,287

524,288

CODE

Figure 13. Noise Distribution Histogram

(VREF = AVDD, Update Rate = 16.7 Hz, Gain = 1)

Rev. 0 | Page 8 of 16

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