AD7934-6 Datasheet

IC型號：
AD7934-6
PDF描述：
4-Channel, 625 kSPS, 12-Bit Parallel ADC with a Sequencer
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PDF頁數(shù)：
30頁
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AD7934-6

TYPICAL PERFORMANCE CHARACTERISTICS

= 25擄C, unless otherwise noted.

鈥?0

100mV p-p SINE WAVE ON V

AND/OR V

DRIVE

NO DECOUPLING

DIFFERENTIAL/SINGLE-ENDED MODE

INT REF

???

AMPLITUDE (dB)

鈥?0

4096 POINT FFT

= 5V

SAMPLE

= 625kSPS

= 49.62kHz

SINAD = 70.94dB

THD = 鈥?0.09dB

DIFFERENTIAL MODE

鈥?0

PSSR (dB)

鈥?0

EXT REF

鈥?00

鈥?10

04752-007

鈥?0

鈥?00

04752-009

100

200

300

400

500

600

210

410

610

810

SUPPLY RIPPLE FREQUENCY (kHz)

1010

FREQUENCY (kHz)

Figure 3. PSRR vs. Supply Ripple Frequency Without Supply Decoupling

鈥?0

INTERNAL/EXTERNAL REFERENCE

= 5V

鈥?5

NOISE ISOLATION (dB)

DNL ERROR (LSB)

Figure 6. FFT @ V

= 5 V

1.0

0.8

0.6

0.4

0.2

鈥?.2

鈥?.4

= 5V

DIFFERENTIAL MODE

鈥?0

鈥?5

鈥?0

04752-021

鈥?.6

鈥?.8

鈥?.0

500

1000

1500

2000 2500

CODE

3000

3500

4000

04752-010

鈥?95

100

200

300

400

500

600

NOISE FREQUENCY (kHz)

700

800

Figure 4. Channel-to-Channel Isolation

= 5V

= 3V

SINAD (dB)

Figure 7. Typical DNL @ V

= 5 V

1.0

0.8

0.6

INL ERROR (LSB)

= 5V

DIFFERENTIAL MODE

0.4

0.2

鈥?.2

鈥?.4

鈥?.6

04752-008

SAMPLE

= 625kSPS

RANGE = 0 TO V

REF

DIFFERENTIAL MODE

100

200

300

400 500 600 700

FREQUENCY (kHz)

800

900

鈥?.8

鈥?.0

500

1000

1500

2000 2500

CODE

3000

3500

4000

1000

Figure 5. SINAD vs. Analog Input Frequency for Various Supply Voltages

Figure 8. Typical INL @ V

= 5 V

Rev. A | Page 11 of 28

04752-011

700

鈥?20

鈥?10

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