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AD8304ARUZ规格书详情
PRODUCT DESCRIPTION
The AD8304 is a monolithic logarithmic detector optimized for the measurement of low frequency signal power in fiber optic systems. It uses an advanced translinear technique to provide an exceptionally large dynamic range in a versatile and easily used form. Its wide measurement range and accuracy are achieved using proprietary design techniques and precise laser trimming. In most applications only a single positive supply, VP, of 5 V will be required, but 3.0 V to 5.5 V can be used, and certain applications benefit from the added use of a negative supply, VN. When using low supply voltages, the log slope is readily altered to fit the available span. The low quiescent current and chip disable features facilitate use in battery-operated applications.
The input current, IPD, flows in the collector of an optimally scaled NPN transistor, connected in a feedback path around a low offset JFET amplifier. The current-summing input node operates at a constant voltage, independent of current, with a default value of 0.5 V; this may be adjusted over a wide range, including ground or below, using an optional negative supply. An adaptive biasing scheme is provided for reducing the dark current at very low light input levels. The voltage at Pin VPDB applies approximately 0.1 V across the diode for IPD = 100 pA, rising linearly with current to 2.0 V of net bias at IPD = 10 mA. The input pin INPT is flanked by the guard pins VSUM that track the voltage at the summing node to minimize leakage.
FEATURES
Optimized for Fiber Optic Photodiode Interfacing
Eight Full Decades of Range
Law Conformance 0.1 dB from 1 nA to 1 mA
Single-Supply Operation (3.0 V– 5.5 V)
Complete and Temperature Stable
Accurate Laser-Trimmed Scaling:
Logarithmic Slope of 10 mV/dB (at VLOG Pin)
Basic Logarithmic Intercept at 100 pA
Easy Adjustment of Slope and Intercept
Output Bandwidth of 10 MHz, 15 V/μs Slew Rate
1-, 2-, or 3-Pole Low-Pass Filtering at Output
Miniature 14-Lead Package (TSSOP)
Low Power: ~4.5 mA Quiescent Current (Enabled)
APPLICATIONS
High Accuracy Optical Power Measurement
Wide Range Baseband Log Compression
Versatile Detector for APC Loops
产品属性
- 型号:
AD8304ARUZ
- 功能描述:
IC LOGARITHM CONV 160DB 14-TSSOP
- 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
- 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
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
AD |
18+ |
SSOP |
796 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
AD |
23+ |
TSSOP16 |
18000 |
询价 | |||
ADI |
2017+ |
TSSOP |
210 |
原装现货假一罚十 |
询价 | ||
ADI |
1912+ |
DIP14 |
16850 |
绝对原装现货 |
询价 | ||
AD |
+ROHS全新原装 |
TSSOP14 |
25687 |
正纳电子优势原装特价长期供应元器件代理分销 |
询价 | ||
ADI |
24+ |
14-Lead TSSOP |
3660 |
十年信誉,只做全新原装正品现货,以优势说话 !! |
询价 | ||
Analog |
21+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
AD |
23+24 |
TSSOP |
36540 |
专营AD原装正品.模拟、混合和数字信号处理芯片 |
询价 | ||
ADI |
21+ |
14TSSOP |
13880 |
公司只售原装,支持实单 |
询价 | ||
ADI/亚德诺 |
2021+ |
SSOP |
1259 |
只做原装进口正品现货 |
询价 |