参数资料
| 型号： | AD8305ACPZ-R2 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/24页 |
| 文件大小： | 0K |
| 描述： | IC AMP LOG CONV 100DB 16-LFCSP |
| 设计资源： | Interfacing ADL5315 to Translinear Logarithmic Amplifier (CN0056) Interfacing ADL5317 High Side Current Mirror to a Translinear Logarithmic Amplifier in an Avalanche Photodiode Power Detector |
| 标准包装： | 250 |
| 类型： | 对数转换器 |
| 应用： | 光纤 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 16-LFCSP-VQ |
| 包装： | 带卷 (TR) |
AD8305
Rev. B | Page 20 of 24
The setup shown in Figure 44 was used for frequency response
measurements of the logarithmic amplifier section. The
AD8138 output is offset to 1.5 V dc and modulated to a depth
of 5% at frequency. R1 is chosen (over a wide range of values up
to 1.0 GΩ) to provide IPD. The buffer was used to deload VLOG
from the measurement system.
0.1F
SOURCE
CHANNEL 2
HP 89410A
1nF
1k
1nF
R1
200k
ALKALINE
“D” CELL
ALKALINE
“D” CELL
+–
+
–
AD8305
12
11
10
9
1
2
3
4
57
8
COMM COMM COMM COMM
16
13
14
15
VSUM
VRDZ
VREF
IREF
INPT
VOUT
SCAL
BFIN
VLOG
VNEG VNEG VPOS
6
TRIGGER
CHANNEL 1
030
53-
04
4
Figure 45. Configuration for Noise Spectral Density Measurement
The configuration in Figure 45 is used to measure the noise
performance. Batteries provide both the supply voltage and the
input current to minimize the introduction of spurious noise
and ground loop effects. The entire evaluation system,
including the current setting resistors, is mounted in a closed
aluminum enclosure to provide additional shielding to external
noise sources.
0.1F
1nF 1k
1k
1nF
R1
200k
CH A
9213
LECROY 9210
CH1
TDS5104
+VS
AD8305
12
11
10
9
1
2
3
4
57
8
COMM COMM COMM COMM
16
13
14
15
VSUM
VRDZ
VREF
IREF
INPT
VOUT
SCAL
BFIN
VLOG
VNEG VNEG VPOS
6
0
30
53
-0
45
Figure 46. Configuration for Logarithmic Amplifier Pulse Response
Measurement
Figure 46 shows the setup used to make the pulse response
measurements. As with the bandwidth measurement, the
VLOG is connected directly to BFIN and the buffer amplifier is
configured for unity gain. The output of the buffer is connected
through a short cable to the TDS5104 scope with input
impedance set to 1 MΩ. The LeCroy’s output is offset to create
the initial pedestal current for a given value of R1, the pulse
then creates one-decade current step.
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PDF描述 |
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| AD8306AR | IC LOGARITHM AMP 5-400MHZ 16SOIC |
| AD8307AN | IC LOGARITHMIC AMP 8-DIP |
| AD8309ARU | IC LOGARITHM AMP 100DB 16-TSSOP |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8305ACPZ-RL7 | 功能描述:IC LOGARITH CONV 100DB 16-LFCSP RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 专用 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:可变增益放大器 应用:CATV 安装类型:表面贴装 封装/外壳:20-WQFN 裸露焊盘 供应商设备封装:20-TQFN-EP（5x5） 包装:托盘 |
| AD8305BRU | 制造商:Analog Devices 功能描述:- Bulk |
| AD8305-EVAL | 制造商:Analog Devices 功能描述:Evaluation Board For IC Log Amp Single 12V 制造商:Analog Devices 功能描述:AD8305 EVALUATION BOARD - Bulk |
| AD8305-EVALZ | 制造商:Analog Devices 功能描述:EVALUATION BOARDS - Bulk |
| AD8306 | 制造商:AD 制造商全称:Analog Devices 功能描述:5 MHz-400 MHz 100 dB High Precision Limiting-Logarithmic Amplifier |
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