AD7276 datasheet(13/28 Pages) AD

номер детали	AD7276

подробное описание детали	3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT

PDF	28 Pages

Scroll/Zoom	100%

производитель	AD [Analog Devices]

домашняя страница	http://www.analog.com

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13 / 28 page

AD7273/AD7274

Rev. 0 | Page 12 of 28

–70

–110

3000

SUPPLY RIPPLE FREQUENCY (MHz)

–80

–90

–100

500

1000

1500

2000

2500

100mV p-p SINE WAVE ON AVDD

NO DECOUPLING

Figure 16. Power Supply Rejection Ratio (PSRR) vs. Supply Ripple

Frequency Without Decoupling

1.0

0.8

0.6

0.4

0.2

–0.2

–0.4

–0.6

–0.8

–1.0

4000

3500

3000

2500

2000

1500

1000

500

CODES

VDD = 3V

Figure 17. AD7274 INL Performance

1.0

0.8

0.6

0.4

0.2

–0.2

–0.4

–0.6

–0.8

–1.0

4000

3500

3000

2500

2000

1500

1000

500

CODES

VDD = 3V

Figure 18. AD7274 DNL Performance

1.0

–1.0

1.4

3.6

REFERENCE VOLTAGE (V)

0.8

0.6

0.4

0.2

–0.2

–0.4

–0.6

–0.8

1.6

1.8

2.0

2.2

2.4

2.6

2.8

3.0

3.2

3.4

POSITIVE INL

NEGATIVE INL

Figure 19. Change in INL vs. Reference Voltage, 3 V Supply

1.0

–1.0

1.4

3.6

REFERENCE VOLTAGE (V)

0.8

0.6

0.4

0.2

–0.2

–0.4

–0.6

–0.8

1.6

1.8

2.0

2.2

2.4

2.6

2.8

3.0

3.2

3.4

POSITIVE DNL

NEGATIVE DNL

Figure 20. Change in DNL vs. Reference Voltage, 3 V Supply

3.60

3.40

3.20

3.00

2.80

2.60

2.40

2.20

2.00

1.80

1.60

1.40

1.20

1.00

0.80

0.60

SCLK FREQUENCY (MHz)

VDD = 2.5V

VDD = 3.6V

VDD = 3V

Figure 21. Maximum Current vs. Supply Voltage

for Different SCLK Frequencies

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