AD5644R datasheet(16/28 Pages) AD

16 / 28 page

AD5624R/AD5644R/AD5664R

Rev. A | Page 16 of 28

SAMPLE NUMBER

2.521

2.522

2.523

2.524

2.525

2.526

2.527

2.528

2.529

2.530

2.531

2.532

2.533

2.534

2.535

2.536

2.537

2.538

100

150

350

400

200

250

300

450

512

VDD = VREF = 5V

TA = 25°C

5ns/SAMPLE NUMBER

GLITCH IMPULSE = 9.494nV

1LSB CHANGE AROUND

MIDSCALE (0x8000 TO 0x7FFF)

Figure 40. Digital-to-Analog Glitch Impulse (Negative)

SAMPLE NUMBER

2.491

2.492

2.493

2.494

2.495

2.496

2.497

2.498

100

150

350

400

200

250

300

450

512

VDD = VREF = 5V

TA = 25°C

5ns/SAMPLE NUMBER

ANALOG CROSSTALK = 0.424nV

Figure 41. Analog Crosstalk, External Reference

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 42. Analog Crosstalk, Internal Reference

Y AXIS = 2µV/DIV

X AXIS = 4s/DIV

VDD = VREF = 5V

TA = 25°C

DAC LOADED WITH MIDSCALE

Figure 43. 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 44. 0.1 Hz to 10 Hz Output Noise Plot, 2.5 V Internal Reference

4s/DIV

VDD = 3V

VREFOUT = 1.25V

TA = 25°C

DAC LOADED WITH MIDSCALE

Figure 45. 0.1 Hz to 10 Hz Output Noise Plot, 1.25 V Internal Reference

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