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MAX3806应用电路(用于光测距系统的接收器)

来源:<a href='http://bbs.hqew.com/viewthread.php?tid=556868' target='_blank'>dongchunhui</a> 作者:华仔 浏览:1100

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摘要: TypicalOperatingCircuitsTheMAX3806isahigh-gainlinearpreamplifierfordistancemeasurementapplicationsusingalaserbeam。Thedeviceoperatesfromasingle+5.0VsupplyandconvertscurrentfromanAC-coupledphotodiodeintoasingle-endedvoltagesignal。Theinputacceptssinglepulsesorburstsofpulseswithwidthsdownto30ns。Theamplifierremainslinearwithinputamplitudesfrom42nAP(SNR=3)to40µAP.Itcanalsowithstandoverloadsignalsa

MAX3806: Typical Operating Circuits
Typical Operating Circuits

The MAX3806 is a high-gain linear preamplifier for distance measurement applications using a laser beam.

The device operates from a single +5.0V supply and converts current from an AC-coupled photodiode into a single-ended voltage signal. The input accepts single pulses or bursts of pulses with widths down to 30ns. The amplifier remains linear with input amplitudes from 42nAP (SNR = 3) to 40µAP. It can also withstand overload signals as large as 2mAP. The output stage is designed to drive a high-impedance load to deliver the output-voltage swing at the lowest possible power dissipation. The gain of the preamplifier stage is selected using the GAIN pin to be 60kΩ or 30kΩ. There is also an internal 14dB attenuator that is selected using the ATT pin. The output stage can be disabled (high impedance).

The device is available in a 3mm x 3mm, 12-pin TQFN package and operates over the -40°C to +105°C temperature range.

型号 厂商 价格
EPCOS 爱普科斯 /
STM32F103RCT6 ST ¥461.23
STM32F103C8T6 ST ¥84
STM32F103VET6 ST ¥426.57
STM32F103RET6 ST ¥780.82
STM8S003F3P6 ST ¥10.62
STM32F103VCT6 ST ¥275.84
STM32F103CBT6 ST ¥130.66
STM32F030C8T6 ST ¥18.11
N76E003AT20 NUVOTON ¥9.67
型号/产品名 平均报价 涨跌幅
STM8S003F3P6 1.55 1.12%
74HC573D 0.64 2.86%
2N7002 3.66 400.00%
STM32F103C8T6 7.47 27.87%
1N4007 1.58 0.00%
ADM2483BRWZ 8.90 3.21%
SHT10 16.21 5.88%
STM32F103RCT6 12.56 24.44%
78L05 10.55 66.67%
LM358 118206.75 16.67%
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