參數(shù)資料
型號: LPC661IN
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 運動控制電子
英文描述: Low Power CMOS Operational Amplifier
中文描述: OP-AMP, 6300 uV OFFSET-MAX, 0.35 MHz BAND WIDTH, PDIP8
封裝: PLASTIC, DIP-8
文件頁數(shù): 8/13頁
文件大小: 311K
代理商: LPC661IN
Application Hints
(Continued)
(2:1) degradation of the amplifier’s performance. See Fig-
ures 5, 6, 7 for typical connections of guard rings for stan-
dard op-amp configurations. If both inputs are active and at
high impedance, the guard can be tied to ground and still
provide some protection; see Figure 8
The designer should be aware that when it is inappropriate
to lay out a PC board for the sake of just a few circuits, there
is another technique which is even better than a guard ring
on a PC board: Don’t insert the amplifier’s input pin into the
board at all, but bend it up in the air and use only air as an in-
sulator. Air is an excellent insulator. In this case you may
have to forego some of the advantages of PC board con-
DS011227-8
FIGURE 4. Example of Guard Ring in P.C. Board Layout, Using the LPC660
DS011227-9
FIGURE 5. Inverting Amplifier
Guard Ring Connections
DS011227-10
FIGURE 6. Non-Inverting Amplifier
Guard Ring Connections
DS011227-11
FIGURE 7. Follower
Guard Ring Connections
DS011227-12
FIGURE 8. Howland Current Pump
Guard Ring Connections
www.national.com
8
相關(guān)PDF資料
PDF描述
LPC662 Low Power CMOS Dual Operational Amplifier
LPC662AIM Low Power CMOS Dual Operational Amplifier
LPC662AIN Low Power CMOS Dual Operational Amplifier
LPC662AMD Low Power CMOS Dual Operational Amplifier
LPC662IM Low Power CMOS Dual Operational Amplifier
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LPC662 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low Power CMOS Dual Operational Amplifier
LPC662AIM 功能描述:運算放大器 - 運放 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
LPC662AIM/NOPB 功能描述:運算放大器 - 運放 Low Power 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
LPC662AIM/NOPB 制造商:Texas Instruments 功能描述:Operational Amplifier (Op-Amp) IC
LPC662AIMX 功能描述:運算放大器 - 運放 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