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參數資料
| 型號： | LPC660AIN |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | Low Power CMOS Quad Operational Amplifier |
| 中文描述： | QUAD OP-AMP, 3000 uV OFFSET-MAX, 0.35 MHz BAND WIDTH, PDIP14 |
| 封裝： | PLASTIC, DIP-14 |
| 文件頁數： | 11/17頁 |
| 文件大小： | 603K |
| 代理商： | LPC660AIN |
Application Hints
(Continued)
BIAS CURRENT TESTING
The test method of Figure 7 is appropriate for bench-testing
bias current with reasonable accuracy. To understand its op-
eration, first close switch S2 momentarily. When S2 is
opened, then
A suitable capacitor for C2 would be a 5 pF or 10 pF silver
mica, NPO ceramic, or air-dielectric. When determining the
magnitude of I
, the leakage of the capacitor and socket
must be taken into account. Switch S2 should be left shorted
most of the time, or else the dielectric absorption of the ca-
pacitor C2 could cause errors.
Similarly, if S1 is shorted momentarily (while leaving S2
shorted)
where C
x
is the stray capacitance at the + input.
Typical Single-Supply Applications
(V
+
= 5.0 V
DC
)
DS010547-24
(Input pins are lifted out of PC board and soldered directly to components.
FIGURE 6. Air Wiring
DS010547-25
FIGURE 7. Simple Input Bias Current Test Circuit
Photodiode Current-to-Voltage Converter
DS010547-17
A 5V bias on the photodiode can cut its capacitance by a factor of 2
Note:
Micropower Current Source
DS010547-18
(Upper limit of output range dictated by input common-mode range;
Note:
www.national.com
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相關PDF資料 |
PDF描述 |
|---|---|
| LPC660AMD | Low Power CMOS Quad Operational Amplifier |
| LPC661AIM | Low Power CMOS Operational Amplifier |
| LPC661AIN | Low Power CMOS Operational Amplifier |
| LPC661AMN | Low Power CMOS Operational Amplifier |
| LPC661 | Low Power CMOS Operational Amplifier |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LPC660AMD | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LPC660AMJ/883 | 制造商:Rochester Electronics LLC 功能描述: |
| LPC660IM | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LPC660IM/NOPB | 功能描述:運算放大器 - 運放 Low Power CMOS Quad Op Amp RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LPC660IMX | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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