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參數(shù)資料
型號: OPA354AQDBVRQ1
廠商: Texas Instruments
文件頁數(shù): 7/24頁
文件大?。?/td> 0K
描述: IC OPAMP RRIO 250MHZ SOT23-5
標準包裝: 1
放大器類型: 電壓反饋
電路數(shù): 1
輸出類型: 滿擺幅
轉(zhuǎn)換速率: 150 V/µs
增益帶寬積: 100MHz
-3db帶寬: 250MHz
電流 - 輸入偏壓: 3pA
電壓 - 輸入偏移: 2000µV
電流 - 電源: 4.9mA
電流 - 輸出 / 通道: 100mA
電壓 - 電源,單路/雙路(±): 2.5 V ~ 5.5 V,±1.25 V ~ 2.75 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: SC-74A,SOT-753
供應商設(shè)備封裝: SOT-23-5
包裝: 標準包裝
產(chǎn)品目錄頁面: 854 (CN2011-ZH PDF)
其它名稱: 296-24618-6
OPA354-Q1
OPA2354-Q1
www.ti.com ....................................................................................................................................................... SBOS492A – JUNE 2009 – REVISED AUGUST 2009
Power Dissipation
Power dissipation depends on power-supply voltage, signal and load conditions. With dc signals, power
dissipation is equal to the product of output current times the voltage across the conducting output transistor,
VS – VO. Power dissipation can be minimized by using the lowest possible power-supply voltage necessary to
assure the required output voltage swing.
For resistive loads, the maximum power dissipation occurs at a dc output voltage of one-half the power-supply
voltage. Dissipation with ac signals is lower. Application bulletin AB-039 (SBOA022), Power Amplifier Stress and
Power Handling Limitations, explains how to calculate or measure power dissipation with unusual signals and
loads, and can be found at www.ti.com.
Any tendency to activate the thermal protection circuit indicates excessive power dissipation or an inadequate
heatsink. For reliable operation, junction temperature should be limited to 150°C, maximum. To estimate the
margin of safety in a complete design, increase the ambient temperature until the thermal protection is triggered
at 160°C. The thermal protection should trigger more than 35°C above the maximum expected ambient condition
of the application.
Copyright 2009, Texas Instruments Incorporated
15
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