ADE7757 Ver la hoja de datos (PDF) - Analog Devices

Número de pieza

componentes Descripción

Fabricante

ADE7757

Energy Metering IC with Integrated Oscillator

Analog Devices 

ADE7757–Typical Performance Characteristics

602k⍀

220V 200⍀ 150nF

40A TO

40mA

350␮⍀

200⍀

150nF

200⍀

150nF

200⍀

150nF

1␮F 100nF

VDD

100nF

10␮F

VDD

V2P

F1

F2

U1

ADE7757 CF

V2N

REVP

V1P

RCLKIN

V1N

S0

REFIN/OUT

S1

SCF

AGND DGND

6.2k⍀

10nF

U3

K7

K8

PS2501-1

VDD

10k⍀

10nF 10nF

Figure 2. Test Circuit for Performance Curves

0.5

PF = 1

0.4 ON-CHIP REFERENCE

0.3

0.2

+25؇C

+85؇C

0.1

0

–0.1

–40؇C

–0.2

–0.3

–0.4

–0.5

0.01

0.1

1

10

100

CURRENT – A

TPC 1. Error as a % of Reading over Temperature

with On-Chip Reference (PF = 1)

1.0

PF = 1

0.8 EXTERNAL REFERENCE

0.6

+85؇C

0.4

0.2

+25؇C

0

–0.2

–0.4

–0.6

–40؇C

–0.8

–1.0

0.01

0.1

1

10

100

CURRENT – A

TPC 3. Error as a % of Reading over Temperature

with External Reference (PF = 1)

0.9

PF = 0.5

ON-CHIP REFERENCE

0.7

–40؇C, PF = 0.5

0.5

+85؇C, PF = 0.5

0.3

0.1

+25؇C, PF = 1.0

–0.1

–0.3

–25؇C, PF = 0.5

–0.5

0.01

0.1

1

10

100

CURRENT – A

TPC 2. Error as a % of Reading over Temperature

with On-Chip Reference (PF = 0.5)

1.0

PF = 0.5

0.8 EXTERNAL REFERENCE

0.6

0.4

+85؇C, PF = 0.5

0.2

0

–0.2

+25؇C, PF = 1.0

+25؇C, PF = 0.5

–0.4

–40؇C, PF = 0.5

–0.6

–0.8

–1.0

0.01

0.1

1

10

100

CURRENT – A

TPC 4. Error as a % of Reading over Temperature

with External Reference (PF = 0.5)

–6–

REV. A

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