參數(shù)資料
型號(hào)： LM7131ACMX
廠商： National Semiconductor
文件頁(yè)數(shù)： 8/28頁(yè)
文件大?。?/td> 0K
描述： IC OP AMP TINY HS SNG SUPP 8SOIC
標(biāo)準(zhǔn)包裝： 2,500
放大器類型： 電壓反饋
電路數(shù)： 1
轉(zhuǎn)換速率： 150 V/µs
增益帶寬積： 70MHz
-3db帶寬： 90MHz
電流 - 輸入偏壓： 20µA
電壓 - 輸入偏移： 20µV
電流 - 電源： 7.5mA
電流 - 輸出 / 通道： 65mA
電壓 - 電源，單路/雙路(±)： 2.7 V ~ 12 V，± 2.5 V ~ 6 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOIC
包裝： 帶卷 (TR)
其它名稱： *LM7131ACMX
OBSOLETE
SNOS737C – SEPTEMBER 1999 – REVISED APRIL 2013
Numbers in parentheses are measured
fixture capacitances w/o DUT and load.
Figure 34. Cable Driver 75
′ RG-59
Numbers in parentheses are measured
fixture capacitances w/o DUT and load.
Figure 35. Cable Driver Gain of 10 AV = +10
Driving Type 1175 Flash A/D Loads
The circuits in Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Figure 41 show a LM7131 in a voltage follower
configuration driving the passive equivalent of a typical flash A/D input. Note that there is a slight ringing on the
output, which can affect accurate analog-to-digital conversion. In these graphs, we have adjusted the ringing to
be a little larger than desirable in order to better show the settling time. Most settling times at low gain are about
75 ns to < 1% of final voltage. The ringing can be reduced by adding a low value (approximately 500
Ω) feedback
resistor from the output to the inverting input and placing a small (picofarad range) capacitor across the feedback
resistor. See Figure 39 and Figure 40 for schematics and respective performance curves for flash A/D driving at
AV = +5 with and without a 2 pF feedback capacitor.
See Feedback Resistor Values and Feedback Compensation. Ringing can also be reduced by placing an
isolation resistor between the output and the analog-to-digital converter input—see sections on Capacitive Load
Please refer to Figure 36, Figure 37, Figure 38 Figure 39, Figure 40, and Figure 41 for schematics of test setups
for driving flash A/D converters.
16
Copyright 1999–2013, Texas Instruments Incorporated
Product Folder Links: LM7131
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM7131ACN 制造商:NSC 制造商全稱:National Semiconductor 功能描述:IC-HIGH SPEED OP AMP
LM7131BCM 制造商:Rochester Electronics LLC 功能描述:- Bulk
LM7131BCM5 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Tiny High Speed Single Supply Operational Amplifier
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LM7131BCMX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Tiny High Speed Single Supply Operational Amplifier
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