AD7440BRT-R2 datasheet(14/28 Pages) AD

部件名	AD7440BRT-R2

功能描述	Differential Input, 1 MSPS ADCs in an 8-Lead SOT-23

PDF	28 Pages

Scroll/Zoom	100%

制造商	AD [Analog Devices]

网页	http://www.analog.com

标志

14 / 28 page

AD7440/AD7450A

Rev. C | Page 14 of 28

10,000

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

2044

2045

2046

2047

2048

2049

CODE

10,000

CODES

VIN+ = VIN–

10,000 CONVERSIONS

fS = 1MSPS

Figure 19. Histogram of 10,000 Conversions of a DC Input for the

AD7450A with VDD = 5 V

–140

–120

–100

–80

–60

–40

–20

100

200

300

400

500

FREQUENCY (kHz)

8192 POINT FFT

fSAMPLE = 1MSPS

fIN = 100kHz

SINAD = +61.6dB

THD = –81.7dB

SFDR = –83.1dB

Figure 20. AD7440 Dynamic Performance with VDD = 5 V

0.5

–0.5

–0.4

–0.3

–0.2

–0.1

0.1

0.2

0.3

0.4

256

512

768

1024

CODE

Figure 21. Typical DNL for the AD7440 for VDD = 5 V

0.5

–0.5

–0.4

–0.3

–0.2

–0.1

0.1

0.2

0.3

0.4

256

512

768

1024

CODE

Figure 22. Typical INL for the AD7440 for VDD = 5 V

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