AD71056AR datasheet(9/20 Pages) AD

No de pièce	AD71056AR

Description	Energy Metering IC with Integrated Oscillator and Reverse Polarity Indication

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Fabricant	AD [Analog Devices]

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AD71056

Rev. A | Page 9 of 20

–0.5

–0.4

–0.3

–0.2

–0.1

0

0.1

0.2

0.3

0.4

0.5

FREQUENCY (Hz)

50

45

55

60

65

PF = 0.5 IND

PF = 0.5 CAP

PF = 1

Figure 9. Error as a % of Reading over Input Frequency

–1.0

–0.8

–0.6

–0.4

–0.2

0

0.2

0.4

0.6

CURRENT CHANNE L (% of Full Scale)

0.1

10

1

100

0.8

1.0

5.25V

5V

4.75V

PF = 1

ON-CHIP REFERENCE

Figure 10. PSR with On-Chip Reference, PF = 1

–1.0

–0.8

–0.6

–0.4

–0.2

0

0.2

0.4

0.6

CURRENT CHANNE L (% of Full Scale)

0.1

10

1

100

0.8

1.0

5.25V

5V

4.75V

PF = 1

EXTERNAL REFERENCE

Figure 11. PSR with External Reference, PF = 1

40

CHANNEL V1 OFFSET (mV)

–5 –4 –3 –2 –1

0123

456789

EXTERNAL REFERENCE

TEMPERATURE = 25°C

0

10

20

30

DISTRIBUTION CHARACTERISTICS

MEAN = 2.247828

SDs = 1.367176

MIN = –2.09932

MAX = +5.28288

NO. OF POINTS = 100

Figure 12. Channel V1 Offset Distribution

0

10

20

30

40

50

CHANNEL V2 OFFSET (mV)

–12 –10 –8

–6

–4

–2

02468

10

12

EXTERNAL REFERENCE

TEMPERATURE = 25°C

DISTRIBUTION CHARACTERISTICS

MEAN = –1.563484

SDs = 2.040699

MIN = –6.82969

MAX = +2.6119

NO. OF POINTS = 100

Figure 13. Channel V2 Offset Distribution

–10

–8

–6

–4

–2

0

2

4

6

8

10

12

0

200

400

600

800

1000

DEVIATION FROM MEAN (%)

EXTERNAL REFERENCE

TEMPERATURE = 25°C

DISTRIBUTION CHARACTERISTICS

MEAN = 0%

SDs = 1.55%

MIN = –11.79%

MAX = +6.08%

NO. OF POINTS = 3387

Figure 14. Part-to-Part CF Distribution from Mean of CF

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