AD5663R datasheet(16/32 Pages) AD

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AD5623R/AD5643R/AD5663R

Data Sheet

Rev. F | Page 16 of 32

SAMPLE NUMBER

2.456

2.458

2.460

2.462

2.464

2.466

2.468

2.470

2.472

2.474

2.476

2.478

2.480

2.482

2.484

2.486

2.488

2.490

2.492

2.494

2.496

100

150

350

400

200

250

300

450

512

VDD = 5V

VREFOUT = 2.5V

TA = 25°C

5ns/SAMPLE NUMBER

ANALOG CROSSTALK = 4.462nV

Figure 40. Analog Crosstalk, Internal Reference

Y AXIS = 2µV/DIV

X AXIS = 4s/DIV

VDD = VREF = 5V

TA = 25°C

DAC LOADED WITH MIDSCALE

Figure 41. 0.1 Hz to 10 Hz Output Noise Plot, External Reference

5s/DIV

VDD = 5V

VREFOUT = 2.5V

TA = 25°C

DAC LOADED WITH MIDSCALE

Figure 42. 0.1 Hz to 10 Hz Output Noise Plot, Internal Reference

4s/DIV

VDD = 3V

VREFOUT = 1.25V

TA = 25°C

DAC LOADED WITH MIDSCALE

Figure 43. 0.1 Hz to 10 Hz Output Noise Plot, Internal Reference

FREQUENCY (Hz)

800

100

200

300

400

500

600

700

100

10k

10M

VDD = 3V

VREFOUT = 1.25V

VDD = 5V

VREFOUT = 2.5V

TA = 25°C

MIDSCALE LOADED

Figure 44. Noise Spectral Density, Internal Reference

FREQUENCY (Hz)

–20

–50

–80

–30

–40

–60

–70

–90

–100

10k

VDD = 5V

TA = 25°C

DAC LOADED WITH FULL SCALE

VREF = 2V ± 0.3V p-p

Figure 45. Total Harmonic Distortion

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