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參數(shù)資料
| 型號(hào)： | LMC2001 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | High Precision, 6MHz Rail-To-Rail Output Operational Amplifier |
| 中文描述： | 高精度，6MHz的軌至軌輸出運(yùn)算放大器 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大?。?/td> | 430K |
| 代理商： | LMC2001 |
Application Notes
(Continued)
This Strain-Gauge (Figure 4) amplifier provides high gain
(1006 or 60 dB) with very low offset and drift. Using the resis-
tors tolerance as shown, the worst case CMRR will be
greater than 90 dB. The common-mode gain is directly re-
lated to the resistor mismatch and is independent of the dif-
ferential gain that is set by R3. The worst case common-
mode gain is 54 dB. This gain becomes even lower,
improving CMRR, if the resistor ratio matching is improved.
Extending Supply Voltages and Output Swing by Using
a Composite Amplifier Configuration:
In cases where substantially higher output swing is required
with higher supply voltages, arrangements like the ones
shown in Figure 5 and Figure 6 could be used (pin numbers
shown are for SO-8 package). These configurations utilize
the excellent DC performance of the LMC2001 while at the
same time allow the superior voltage and frequency capabili-
ties of the LM6171 to set the dynamic performance of the
overall amplifier. For example, it is possible to achieve
±
12V
output swing with 300MHz of overall GBW (Av=100) while
keeping the worst case output shift due to Vos less than
4mV. The LMC2001 output voltage is kept at about mid-point
of it’s overall supply voltage and it’s input common mode
voltage range allows the V
-
terminal to be grounded in one
case (Figure 5 inverting operation) and tied to a small non-
critical negative bias in another (Figure 6 non-inverting op-
eration). Higher closed loop gains are also possible with a
corresponding reduction in realizable bandwidth. Table 1
shows some other closed loop gain possibilities along with
the measured performance in each case
Application Circuits
DS100058-A1
FIGURE 2.
DS100058-A0
FIGURE 3.
DS100058-21
FIGURE 4. Single Supply Strain- Gauge Amplifier
DS100058-30
FIGURE 5. Inverting Composite Amplifier
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMC2001 WAF | 制造商:Texas Instruments 功能描述: |
| LMC2001ACM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LMC2001ACM5X | 功能描述:IC OP AMP 6MHZ R-R OUT SOT23-5 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
| LMC2001AIM | 制造商:Texas Instruments 功能描述: |
| LMC2001AIMX | 功能描述:IC OP AMP 6MHZ R-R OUT 8-SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
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