AD8305(2003) 데이터 시트보기 (PDF) - Analog Devices

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AD8305
(Rev.:2003)

100 dB Range (10 nA to 1 mA) Logarithmic Converter

Analog Devices 

2.0

TA = 25؇C

1.5

1.0

0.5

MEAN + 3␴

0

–0.5

MEAN – 3␴

–1.0

–1.5

–2.0

1n

10n 100n

1␮

10␮ 100␮ 1m 10m

IPD – A

TPC 19. Law Conformance Error Distribution

(3␴ to Either Side of Mean)

2.0

1.5

MEAN + 3␴ @ 70؇C

1.0

TA = 0؇C, 70؇C

0.5

0

–0.5

MEAN ؎ 3␴ @ 0؇C

–1.0

MEAN – 3␴ @ 70؇C

–1.5

–2.0

1n

10n 100n

1␮

10␮ 100␮ 1m 10m

IPD – A

TPC 20. Law Conformance Error Distribution

(3␴ to Either Side of Mean)

4

TA = –40؇C, +85؇C

3

MEAN + 3␴ @ –40؇C

2

1

MEAN 3␴ @ +85؇C

0

–1

–2

–3

MEAN – 3␴ @ –40؇C

–4

1n

10n 100n

1␮

10␮ 100␮ 1m

IPD – A

10m

TPC 21. Law Conformance Error Distribution

(3␴ to Either Side of Mean)

AD8305

20

15

10

5

MEAN + 3␴

0

–5

–10

MEAN – 3␴

–15

–20

–25

–40 –30 –20 –10

0 10 20 30 40 50 60 70 80 90

TEMPERATURE – ؇C

TPC 22. VREF Drift vs. Temperature (3␴ to Either

Side of Mean)

20

15

10

5

MEAN + 3␴

0

–5

MEAN – 3␴

–10

–15

–20

–40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90

TEMPERATURE – ؇C

TPC 23. VREF – VIREF Drift vs. Temperature

(3␴ to Either Side of Mean)

5

4

3

2

1

MEAN + 3␴

0

–1

–2

MEAN – 3␴

–3

–4

–5

–40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90

TEMPERATURE – ؇C

TPC 24. VINPT Drift vs. Temperature (3␴ to Either

Side of Mean)

REV. A

–7–

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