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參數(shù)資料
| 型號(hào)： | LMC6462 |
| 廠(chǎng)商： | National Semiconductor Corporation |
| 英文描述： | Micropower, Rail-to-Rail Input and Output CMOS Operational Amplifier |
| 中文描述： | 微功耗，軌到軌輸入和輸出CMOS運(yùn)算放大器 |
| 文件頁(yè)數(shù)： | 14/18頁(yè) |
| 文件大?。?/td> | 648K |
| 代理商： | LMC6462 |
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Typical Single-Supply Applications
TRANSDUCER INTERFACE CIRCUITS
Photocells can be used in portable light measuring instru-
ments. The LMC6462, which can be operated off a battery, is
an excellent choice for this circuit because of its very low in-
put current and offset voltage.
LMC6462 AS A COMPARATOR
Figure 17 shows the application of the LMC6462 as a com-
parator. The hysteresis is determined by the ratio of the two
resistors. The LMC6462 can thus be used as a micropower
comparator, in applications where the quiescent current is an
important parameter.
HALF-WAVE AND FULL-WAVE RECTIFIERS
In Figure 18 Figure 19 R
limits current into the amplifier
since excess current can be caused by the input voltage ex-
ceeding the supply voltage.
PRECISION CURRENT SOURCE
The output current I
OUT
is given by:
OSCILLATORS
For single supply 5V operation, the output of the circuit will
swing from 0V to 5V. The voltage divider set up R
, R
and
R
will cause the non-inverting input of the LMC6462 to
move from 1.67V (
1
3
of 5V) to 3.33V (
2
3
of 5V). This voltage
behaves as the threshold voltage.
R
and C
determine the time constant of the circuit. The fre-
quency of oscillation, f
OSC
is
DS012051-22
FIGURE 16. Photo Detector Circuit
DS012051-23
FIGURE 17. Comparator with Hysteresis
DS012051-24
FIGURE 18. Half-Wave Rectifier with
Input Current Protection (R
I
)
DS012051-25
FIGURE 19. Full-Wave Rectifier
with Input Current Protection (R
I
)
DS012051-26
FIGURE 20. Precision Current Source
DS012051-27
FIGURE 21. 1 Hz Square-Wave Oscillator
www.national.com
14
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMC6462AIM | 功能描述:運(yùn)算放大器 - 運(yùn)放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LMC6462AIM | 制造商:Texas Instruments 功能描述:OP AMP DUAL MICROPOWER SMD 6462 |
| LMC6462AIM/NOPB | 功能描述:運(yùn)算放大器 - 運(yùn)放 DUAL MICROPOWER RRIO CMOS OP AMP RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LMC6462AIM/NOPB | 制造商:Texas Instruments 功能描述:Operational Amplifier (Op-Amp) IC |
| LMC6462AIMX | 功能描述:運(yùn)算放大器 - 運(yùn)放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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