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參數(shù)資料
| 型號(hào)： | LMC6032 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | CMOS Dual Operational Amplifier |
| 中文描述： | CMOS雙運(yùn)算放大器 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大小： | 291K |
| 代理商： | LMC6032 |
Application Hints
(Continued)
BIAS CURRENT TESTING
The test method of Figure 8 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
Additional single-supply applications ideas can be found in
the LM358 datasheet. The LMC6032 is pin-for-pin compat-
ible with the LM358 and offers greater bandwidth and input
resistance over the LM358. These features will improve the
performance of many existing single-supply applications.
Note, however, that the supply voltage range of the
LMC6032 is smaller than that of the LM358.
(V
+
= 5.0 V
DC
)
and R4 = R7.
= 100 for circuit shown.
For good CMRR over temperature, low drift resistors should
be used. Matching of R3 to R6 and R4 to R7 affects CMRR.
Gain may be adjusted through R2. CMRR may be adjusted
through R7.
if R1 = R5;
R3 = R6,
DS011135-11
(Input pins are lifted out of PC board and soldered directly to components.
FIGURE 7. Air Wiring
DS011135-12
FIGURE 8. Simple Input Bias Current Test Circuit
Instrumentation Amplifier
DS011135-14
Sine-Wave Oscillator
DS011135-15
Oscillator frequency is determined by R1, R2, C1, and C2:
f
= 1/2
π
RC
where R = R1 = R2 and C = C1 = C2.
www.national.com
9
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LMC6032IM | CMOS Dual Operational Amplifier |
| LMC6032IN | CMOS Dual Operational Amplifier |
| LMC6061AIN | Precision CMOS Single Micropower Operational Amplifier |
| LMC6061AMN | Precision CMOS Single Micropower Operational Amplifier |
| LMC6061IM | Precision CMOS Single Micropower Operational Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMC6032IM | 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 |
| LMC6032IM/NOPB | 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 |
| LMC6032IM/NOPB | 制造商:Texas Instruments 功能描述:Operational Amplifier (Op-Amp) IC |
| LMC6032IMX | 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 |
| LMC6032IMX/NOPB | 功能描述:運(yùn)算放大器 - 運(yùn)放 CMOS DUAL 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 |
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