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參數(shù)資料
| 型號(hào)： | LM7131ACMX |
| 廠商： | National Semiconductor |
| 文件頁(yè)數(shù)： | 6/28頁(yè) |
| 文件大小： | 0K |
| 描述： | IC OP AMP TINY HS SNG SUPP 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 放大器類(lèi)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(lèi)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 |
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OBSOLETE
SNOS737C – SEPTEMBER 1999 – REVISED APRIL 2013
Common Mode Voltage Rejection
Note that there are two parts to the CMRR specification of the datasheet for 3V and 5V. The common mode
rejection ratio of the LM7131 has been maximized for signals near ground (typical of the active part of video
signals, such as those which meet the RS-170 levels). This can help provide rejection of unwanted noise pick-up
by cables when a balanced input is used with good input resistor matching. The mid-level CMRR is similar to that
of other single supply op amps.
Bode Plots (Gain vs Frequency for AV = +1)
The gain vs. frequency plots for a non-inverting gain of 1 show the three voltages with the 150
Ω load connected
in two ways. For the single supply graphs, the load is connected to the most negative rail, which is ground. For
the split supply graphs, the load is connected to a voltage halfway between the two supply rails.
Driving Cables
Pulse response curves for driving 75
Ω back terminate cables are shown for both 3V and 5V supplies. Note the
good pulse fidelity with straight 150 loads, five foot (1.5 meter) and 75 foot (22 meter) cable runs. The bandwidth
is reduced when used in a gain of ten (AV = +10). Even in a gain of ten configuration, the output settles to < 1%
in about 100 ns, making this useful for amplifying small signals at a sensor or signal source and driving a cable
to the main electronics section which may be located away from the signal source. This will reduce noise pickup.
Please refer to Figure 31, Figure 32, Figure 33, Figure 34, and Figure 35 for schematics of test setups for cable
driving.
Numbers in parentheses are measured
fixture capacitances w/o DUT and load.
Figure 31. Cable Driver AV = +1
14
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 |
| LM7131BCM5X | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 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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