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AD8305ACPZ规格书详情
GENERAL DESCRIPTION
The AD8305 is an inexpensive microminiature logarithmic converter optimized for determining optical power in fiber optic systems. It uses an advanced implementation of a classic translinear (junction based) technique to provide a large dynamic range in a versatile and easily used form. A single-supply voltage of between 3 V and 12 V is adequate; dual supplies may optionally be used. The low quiescent current (typically 5 mA) permits use in battery-operated applications.
The input current, IPD, of 10 nA to 1 mA applied to the INPT pin is the collector current of an optimally scaled NPN transistor, which converts this current to a voltage (VBE) with a precise logarithmic relationship. A second such converter is used to handle the reference current (IREF)
applied to pin IREF. These input nodes are biased slightly above ground (0.5 V). This is generally acceptablefor photodiode applications where the anode does not need to be grounded. Similarly, this bias voltage is easily accounted for in generating IREF. The output of the logarithmic front end is available at Pin VLOG.
FEATURES
Optimized for fiber optic photodiode interfacing
Measures current over 5 decades
Law conformance 0.1 dB from 10 nA to 1 mA
Single- or dual-supply operation (3 V to 12 V total)
Full log-ratio capabilities
Nominal slope of 10 mV/dB (200 mV/decade)
Nominal intercept of 1 nA (set by external resistor)
Optional adjustment of slope and intercept
Complete and temperature stable
Rapid response time for a given current level
Miniature 16-lead chip scale package
(LFCSP 3 mm × 3 mm)
Low power: ~5 mA quiescent current
APPLICATIONS
Optical power measurement
Wide range baseband logarithmic compression
Measurement of current and voltage ratios
Optical absorbance measurement
产品属性
- 型号:
AD8305ACPZ
- 制造商:
AD
- 制造商全称:
Analog Devices
- 功能描述:
100 dB Range(10 nA to 1 mA) ogarithmic Converter
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ADI |
2020+ |
LFCSP |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
AD |
2016+ |
QFP |
2585 |
只做进口原装现货!或者订货,假一赔十! |
询价 | ||
ADI/亚德诺 |
22+ |
QFN16 |
100000 |
代理渠道/只做原装/可含税 |
询价 | ||
ADI(亚德诺) |
23+ |
标准封装 |
15084 |
正规渠道,大量现货,只等你来。 |
询价 | ||
ADI |
1688 |
16LFCSP |
52 |
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询价 | ||
ADI(亚德诺) |
24+ |
10000 |
真实原装现货库存,联系徐小姐13714450367,QQ 2850151739 |
询价 | |||
ADI/亚德诺 |
21+ |
原封装 |
13880 |
公司只售原装,支持实单 |
询价 | ||
ADI |
19+ |
LFCSP |
35210 |
原装现货/放心购买 |
询价 | ||
ADI/亚德诺 |
23+ |
NA/ |
3266 |
原装现货,当天可交货,原型号开票 |
询价 | ||
ADI(亚德诺) |
2335 |
Original |
50000 |
只做原装优势现货库存,渠道可追溯 |
询价 |