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| 型號： | AD8305ACP-R2 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 22/24頁 |
| 文件大小： | 0K |
| 描述： | IC LOGARITHM CONV 100DB 16-LFCSP |
| 產(chǎn)品變化通告： | Product Discontinuance 27/July/2010 |
| 設(shè)計(jì)資源： | Interfacing ADL5315 to Translinear Logarithmic Amplifier (CN0056) Interfacing ADL5317 High Side Current Mirror to a Translinear Logarithmic Amplifier in an Avalanche Photodiode Power Detector |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 對數(shù)轉(zhuǎn)換器 |
| 應(yīng)用： | 光纖 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 16-LFCSP-VQ |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | AD8305ACP-R2DKR |
AD8305
Rev. B | Page 7 of 24
IREF (A)
1.4
0
1n
V
LO
G
(V
)
1.2
1.0
0.8
0.6
0.4
0.2
10n
100n
1
10
100
1m
10m
1.6
1.8
10nA
100nA
1A
10A
100A
1mA
03
05
3-
00
9
Figure 9. VLOG vs. IREF for Multiple Values of IPD (Decade Steps from
10 nA to 1 mA)
0.4
–0.3
E
R
O
R
;dB
(1
0m
V/
d
B
)
0.3
0.2
0.1
0
–0.1
–0.2
0.5
+3V, 0V
–0.4
–0.5
+5V, 0V
+9V, 0V
+12V, 0V
+3V, –0.5V
+5V, –5V
IPD (A)
1n
10n
100n
1
10
100
1m
10m
03
05
3-
0
10
Figure 10. Law Conformance Error vs. IPD for Various Supply Conditions (See
Annotations)
0.4
–0.3
0.3
0.2
0.1
0
–0.1
–0.2
–0.4
IPD (A)
1n
10n
100n
1
10
100
1m
10m
V
SUM
–
V
IN
P
T
(m
V)
03
05
3-
0
11
Figure 11. VINPT VSUM vs. IPD
0.4
–0.3
E
R
O
R
;dB
(1
0m
V/
d
B
)
0.3
0.2
0.1
0
–0.1
–0.2
0.5
–0.4
–0.5
10A
100A
1mA
10nA
100nA
1A
IREF (A)
1n
10n
100n
1
10
100
1m
10m
03
05
3-
0
12
Figure 12. Law Conformance Error vs. IREF for Multiple Values of IPD (Decade
Steps from 10 nA to 1 mA)
TIME (s)
1.4
180
V
OU
T
(V
)
1.2
1.0
0.8
0.6
0.4
0.2
0
160
140
120
100
80
60
40
20
0
–20
100A TO 1mA:T-RISE = <1s,
T-FALL = < 1s
10A TO 10A:T-RISE = <1s,
T-FALL = < 1s
1ATO 10A:T-RISE = 1s,
T-FALL = 5s
100nA TO 1A:T-RISE = 5s,
T-FALL = 20s
10nA TO 100nA:T-RISE = 20s,
T-FALL = 30s
03
053
-01
3
Figure 13. Pulse Response IPD to VOUT (G = 1)
TIME (s)
1.4
180
V
OU
T
(V
)
1.2
1.0
0.8
0.6
0.4
0.2
0
160
140
120
100
80
60
40
20
0
–20
1.6
100A TO 1mA:T-RISE = <1s,
T-FALL = < 1s
10A TO 100A:T-RISE = 1s,
T-FALL = < 1s
1ATO 10A:T-RISE = 5s,
T-FALL = 1s
100nA TO 1A:T-RISE = 30s,
T-FALL = 5s
10nA TO 100nA:T-RISE = 30s,
T-FALL = 20s
0
305
3-
0
14
Figure 14. Pulse Response IREF to VOUT (G = 1)
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