AD7394 datasheet(8/12 Pages) AD

8 / 12 page

AD7394/AD7395

–8–

REV. 0

CLOCK FREQUENCY – Hz

1800

1600

10k

10M

100k

800

600

400

200

1400

1200

1000

A: IDD = 2.7V, CODE = 555H

B: IDD = 2.7V, CODE = 3FFH

C: VDD = 5.5V, CODE = 155H

D: VDD = 5.5V, CODE = 3FFH

AD7394

Figure 13. Supply Current vs. Clock

Frequency

VOUT – LSB

VDD = 5V

VDD = 3V

VREF = 2.5V

CODE = 800H

Figure 16. AD7394 IOUT Source Cur-

rent vs.

∆V

OUT

HOURS OF OPERATION – 150 C

1.4

100

600

200

300

400

500

1.2

0.8

0.4

0.2

0.6

CODE = 000H

CODE = FFFH

AD7394

Figure 19. Long-Term Drift Acceler-

ated by Burn-In

FREQUENCY – Hz

10k

100

VDD = 5.0V, 5%

VDD = 3.0V, 5%

TA = +25 C

Figure 14. AD7394 Power Supply

Rejection vs. Frequency

TIME – 2 s/DIV

1.262

1.257

1.237

1.252

1.247

1.242

VDD = +5V

VREF = 2.5V

TA = +25 C

CODE = 800H TO 7FFH

5mV/DIV

Figure 17. Midscale Transition

Performance

VOUT – LSB

VDD = 3V

VDD = 5V

VREF = 2.5V

CODE = 800H

Figure 15. AD7394 IOUT Sink Current

vs.

∆V

OUT

100

VDD = 5V

CODE = FFFH

10k

100k

FREQUENCY – Hz

Figure 18. AD7395 Reference Multi-

plying Bandwidth

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