AD677 datasheet(14/16 Pages) AD

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AD677

REV. A

–14–

RIPPLE FREQUENCY – Hz

100

10k

100k

+12V

–12V

+5V

Figure 15. AC Power Supply Rejection (fIN = 1.06 kHz)

fSAMPLE = 96 kSPS, VRIPPLE = 0.13 V p-p

–30

–50

–70

–90

–110

–130

–150

1520

2530

FREQUENCY – kHz

Figure 16. IMD Plot for fIN = 1008 Hz (fa), 1055 Hz (fb) at

96 kSPS

450

570

550

530

510

490

CLK PERIOD – ns

470

590

104

100

102

106

THD, 5V

S/(N+D), 10V

S/(N+D), 5V

THD, 10V

Figure 17. AC Performance vs. Clock Period, TA = +85

°C

(5 V and 10 V Reference)

104

–20

–40

100

102

106

TEMPERATURE – Degree °C

S/(N+D), 5V

THD, 10V

S/(N+D), 10V

THD, 5V

Figure 18. AC Performance Using Minimum Clock Period

vs. Temperature (tCLK = 480 ns), 5 V and 10 V Reference

FREQUENCY – kHz

1.0

0.8

0.6

0.4

0.2

0.0

–0.2

–0.4

–0.6

–0.8

–1.0

Figure 19. DNL Plot at VREF = 10 V, TA = +25°C, fS =

100 kSPS

DNL – LSBs

32000

8000

14000

22000

26000

18000

12000

4000

.05

.15

.25

.35

.40

–.05

–.15

–.25

–.35

152

2500

14645

30671

14113

2993

392

Figure 20. DNL Error Distribution (Taken from Figure 19)

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