Dual/Quad Low Power, High Speed JFET Operational Amplifiers

GENERAL DESCRIPTION The AD8682 and AD8684 are dual and quad low power, precision (1 mV) JFET amplifiers featuring excellent speed at low supply currents. The slew rate is typically 9 V/μs with a supply current under 250 μA per amplifier. These unity-gain stable amplifiers have a typical gain ba

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30 V, Micropower, Overvoltage Protection, Rail-to-Rail Input/Output Amplifiers

FEATURES Input overvoltage protection, 32 V above and below the supply rails No phase reversal for input voltage up to ±32 V beyond the power supply Rail-to-rail input and output swing Low power: 60 μA per amplifier typical Unity-gain bandwidth 800 kHz typical at VSY = ±15 V 550 kHz typical

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Low Power JFET-Input Op Amps

FEATURES Low input bias current: 50 pA maximum Offset voltage 1.5 mV maximum for B grade (ADA4062-2 SOIC package) 2.5 mV maximum for A grade Offset voltage drift: 5 μV/°C typical Slew rate: 3.3 V/μs typical CMRR: 90 dB typical Low supply current: 165 μA typical High input impedance Unity

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Precision Micropower, OVP, RRIO Operational Amplifier

FEATURES Single-supply operation: 3.0 V to 30 V Wide input voltage range Rail-to-rail output swing Low supply current: 200 μA/amplifier Wide bandwidth: 1.2 MHz Slew rate: 0.46 V/μs Low offset voltage: 250 μV maximum No phase reversal Overvoltage protection (OVP) 25 V above/below supply rails

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Micropower RRIO Operational Amplifier

FEATURES Single-supply operation: 3 V to 30 V Wide input voltage range Rail-to-rail output swing Low supply current: 200 μA/amplifier Wide bandwidth: 1.4 MHz High phase margin: 69° Slew rate: 0.4 V/μs Low offset voltage: 1.50 mV maximum No phase reversal Overvoltage protection (OVP) 25 V above/

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Dual/Quad Low Power, High Speed JFET Operational Amplifiers

FEATURES Low supply current: 250 μA/amp maximum High slew rate: 9 V/μs Bandwidth: 3.5 MHz typical Low offset voltage: 1 mV maximum @ 25°C Low input bias current: 20 pA maximum @ 25°C CMRR: 90 dB typical Fast settling time Unity-gain stable APPLICATIONS Portable telecommunications Low po

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Dual/Quad Low Power, High Speed JFET Operational Amplifiers

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30 V, Micropower, Overvoltage Protection, Rail-to-Rail Input/Output Amplifier

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30 V, Micropower, Overvoltage Protection

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雙路、低功耗、高速JFET運(yùn)算放大器

AD8682和AD8684分別是雙路和四路低功耗、精密（1 mV）JFET放大器，具有出色的速度和低電源電流特性。典型壓擺率為9 V/μs，每個(gè)放大器的電源電流低于250μA。這些單位增益穩(wěn)定型放大器的典型增益帶寬為3.5 MHz。JFET輸入級(jí)則可確保典型偏置電流僅數(shù)pA，且在整個(gè)工作溫度范圍內(nèi)均小于125 pA。\n\n 上述器件非常適合便攜式、低功耗應(yīng)用，特別是較高源阻抗應(yīng)用。兩款放大器的單位增益穩(wěn)定，可以驅(qū)動(dòng)較高的容性負(fù)載（G = 1、同相），在各種條件下均具有出色的動(dòng)態(tài)響應(yīng)范圍，并且能以低靜態(tài)電流提供直流精度性能。 ? 低電源電流：每個(gè)放大器250 μA(最大值)\n\n? 高壓擺率：9 V/μs\n\n? 帶寬：3.5 MHz(典型值)\n\n? 低失調(diào)電壓：1 mV (最大值,25°C)\n\n? 低輸入偏置電流：20 pA (最大值,25°C)\n\n? 共模抑制比(CMRR)：90 dB（典型值）\n\n? 快速建立時(shí)間\n\n? 單位增益穩(wěn)定;

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