Ultralow Input Bias Current Operational Amplifier

GENERAL DESCRIPTION The AD5491 is a monolithic electrometer operational amplifier with very low input bias current. Input offset voltage and input offset voltage drift are laser trimmed for precision performance. The ultralow input current of the part is achieved with Topgate™ JFET technology, a

文件：418.53 Kbytes 页数：12 Pages

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Ultralow Input Bias Current Operational Amplifier

FEATURES Ultralow input bias current 60 fA maximum (AD549L) 100 fA maximum (AD549K) 250 fA maximum (AD549J) Input bias current guaranteed over the common-mode voltage range Low offset voltage 0.50 mV maximum (AD549K) 1.00 mV maximum (AD549J) Low offset drift 15 μV/°C maximum (AD549K) 20 μ

文件：1.13293 Mbytes 页数：18 Pages

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Ultralow Input Bias Current Operational Amplifier

文件：1.22293 Mbytes 页数：19 Pages

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Ultralow Input Bias Current Operational Amplifier

文件：1.22613 Mbytes 页数：20 Pages

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超低输入偏置电流运算放大器

AD549是一款单芯片静电计运算放大器，具有极低的输入偏置电流。输入失调电压和输入失调电压漂移经过激光校准，精度极高。该器件运用ADI公司开发的Topgate™ JFET技术，实现了超低输入电流。借助这种技术，可以制造与标准结隔离式双极性工艺兼容的极低输入电流JFET。自举输入级提供1015 Ω的共模阻抗，可确保输入电流基本与共模电压无关。\n\n AD549适合要求极低输入电流和低输入失调电压的应用。它可以作为出色的前置放大器用于各种电流输出传感器，例如光电二极管、光电倍增管或氧气传感器等，也可以用作精密积分器或低下垂采样保持器。AD549与标准FET和静电计运算放大器引脚兼容，因 • 超低输入偏置电流\n• 60 fA（最大值，AD549L）\n\n• 100 fA（最大值，AD549K）\n\n• 250 fA（最大值，AD549J）\n\n\n\n\n• 在整个共模电压范围内，保证输入偏置电流符合额定性能\n\n• 低失调电压\n• 0.50 mV（最大值，AD549K）\n\n• 1.00 mV（最大值，AD549J）\n\n\n\n\n• 低失调漂移\n• 15 µV/°C（最大值，AD549K）\n\n• 20 µV/°C（最大值，AD549J）\n\n\n\n\n• 低功耗\n• 700 µA最大电源电流\n\n\n\n\n• 低输入电压噪声\n• 4 µV;

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Ultralow Input Bias Current Operational Amplifier

FEATURES Ultralow input bias current 60 fA maximum (AD549L) 100 fA maximum (AD549K) 250 fA maximum (AD549J) Input bias current guaranteed over the common-mode voltage range Low offset voltage 0.50 mV maximum (AD549K) 1.00 mV maximum (AD549J) Low offset drift 15 μV/°C maximum (AD549K) 20 μ

文件：1.13293 Mbytes 页数：18 Pages

AD

亚德诺

Ultralow Input Bias Current Operational Amplifier

GENERAL DESCRIPTION The AD5491 is a monolithic electrometer operational amplifier with very low input bias current. Input offset voltage and input offset voltage drift are laser trimmed for precision performance. The ultralow input current of the part is achieved with Topgate™ JFET technology, a

文件：418.53 Kbytes 页数：12 Pages

AD

亚德诺

Ultralow Input Bias Current Operational Amplifier

GENERAL DESCRIPTION The AD5491 is a monolithic electrometer operational amplifier with very low input bias current. Input offset voltage and input offset voltage drift are laser trimmed for precision performance. The ultralow input current of the part is achieved with Topgate™ JFET technology, a

文件：418.53 Kbytes 页数：12 Pages

AD

亚德诺

Ultralow Input Bias Current Operational Amplifier

GENERAL DESCRIPTION The AD5491 is a monolithic electrometer operational amplifier with very low input bias current. Input offset voltage and input offset voltage drift are laser trimmed for precision performance. The ultralow input current of the part is achieved with Topgate™ JFET technology, a

文件：418.53 Kbytes 页数：12 Pages

AD

亚德诺

Ultralow Input Bias Current Operational Amplifier

FEATURES Ultralow input bias current 60 fA maximum (AD549L) 100 fA maximum (AD549K) 250 fA maximum (AD549J) Input bias current guaranteed over the common-mode voltage range Low offset voltage 0.50 mV maximum (AD549K) 1.00 mV maximum (AD549J) Low offset drift 15 μV/°C maximum (AD549K) 20 μ

文件：1.13293 Mbytes 页数：18 Pages

AD

亚德诺