AD8305ACP中文資料亞德諾數(shù)據(jù)手冊PDF規(guī)格書
AD8305ACP規(guī)格書詳情
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
產(chǎn)品屬性
- 型號:
AD8305ACP
- 制造商:
AD
- 制造商全稱:
Analog Devices
- 功能描述:
100 dB Range(10 nA to 1 mA) Logarithmic Converter
供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
ADI/亞德諾 |
25+ |
QFN |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
ANALOG |
23+ |
原廠封裝 |
13528 |
振宏微原裝正品,假一罰百 |
詢價 | ||
ADI/亞德諾 |
21+ |
QFN16 |
3000 |
百域芯優(yōu)勢 實單必成 可開13點增值稅發(fā)票 |
詢價 | ||
AD |
25+23+ |
QFN |
33516 |
絕對原裝正品全新進口深圳現(xiàn)貨 |
詢價 | ||
ADI |
24+ |
16-LFCSP |
7500 |
詢價 | |||
ADI/亞德諾 |
22+ |
QFN |
29154 |
原裝正品現(xiàn)貨 |
詢價 | ||
AnalogDevices |
LFCSP-16 |
1800 |
AD代理旗下一級分銷商,主營AD全系列產(chǎn)品 |
詢價 | |||
ADI |
19+ |
QFN |
256800 |
原廠代理渠道,每一顆芯片都可追溯原廠; |
詢價 | ||
ADI |
22+ |
QFN |
8200 |
全新原裝現(xiàn)貨!自家?guī)齑? |
詢價 | ||
ADI/亞德諾 |
22+ |
LFCSP-16 |
13000 |
原裝正品 |
詢價 |