参数资料
| 型号： | AD8015ARZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/8页 |
| 文件大小： | 0K |
| 描述： | IC AMP TRANSIMPEDANCE 8-SOIC |
| 标准包装： | 1,000 |
| 放大器类型： | 转阻 |
| 电路数： | 1 |
| 输出类型： | 差分 |
| 增益带宽积： | 240MHz |
| 电流 - 电源： | 25mA |
| 电压 - 电源，单路/双路(±)： | 4.5 V ~ 11 V，±2.25 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
REV. A
–8–
AD8015
PRINTED
IN
U.S.A.
C1973–6–1/96
AC COUPLED PHOTODIODE APPLICATION FOR
IMPROVED DYNAMIC RANGE
AC coupling the photodiode current input to the AD8015 (Fig-
ure 17) extends fiber optic receiver overload by 3 dB while sacri-
ficing only 1 dB of sensitivity (increasing receiver dynamic range
by 2 dB). This application results in typical overload of –4 dBm,
and typical sensitivity of –35 dBm. AC coupling the input also
results in improved pulse width modulation performance.
Careful attention to minimize parasitic capacitance at the
AD8015 input (from the photodetector input), RAC and CAC are
critical for sensitivity performance in this application. Note that
CAC of 0.01
F was chosen for a low frequency cutoff equal to
2.2 kHz.
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
8-Lead Small Outline IC Package (SO-8)
0.1968 (5.00)
0.1890 (4.80)
8
5
4
1
PIN 1
0.1574 (4.00)
0.1497 (3.80)
0.0688 (1.75)
0.0532 (1.35)
SEATING
PLANE
0.0098 (0.25)
0.0040 (0.10)
0.020 (0.51)
0.013 (0.33)
0.0500
(1.27)
BSC
0.0098 (0.25)
0.0075 (0.19)
0.0500 (1.27)
0.0160 (0.41)
8
°
0
°
0.0196 (0.50)
0.0099 (0.25)
x 45
°
0.2440 (6.20)
0.2284 (5.80)
V1
+VS
CLOCK
RECOVERY
LPF:
3dB@
0.7 x F
LPF:
3dB@
0.7 x F
QUANTIZER
R > 40
C1 >100pF
4.5V < VS < 11V
CLK
DATA
R
C1
10k
5
6
7
8
4
3
2
1
AD8015
50
+1
G = 3
G = 30
50
+1
– +
+VS
1.7V
+VS
CAC
0.01F
RAC
7k
Figure 17. AC Coupled Photodiode Application for Improved Dynamic Range
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