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ADI ADA4625-1高电单电源轨到轨输出运算放大器解决方案

ADI公司的ADA4625-1/ADA4625-2是业界领先的高电压单电源轨到轨输出(RRO)精密结型场效应晶体管(JFET)输入运算放大器,具有市场上前所未有的速度和低噪声水平.宽增益带宽积为18 MHz,高电压摆率为48 V/μs,低电压噪声密度为3.3 nV/√Hz(1 kHz,典型值),低峰峰值噪声为0.15 μV p-p(0.1 Hz至10 Hz),低输入偏置电流为±15 pA(典型值,TA = 25℃), 低失调电压为±80 μV(最大值,TA = 25℃),失调电压漂移为±1.2 μV/℃(最大值,TA = −40℃至85℃),快速建立时间为700 ns(典型值,0.01%),双电源供电电压为±2.5 V至±18 V,单电源供电电压为5 V至36 V,轨到轨输出,具有高容性负载驱动能力,输出短路电流为±46 mA,无相位反转和单位增益稳定.主要用在PLL滤波器放大器,跨阻放大器,光电二极管传感器接口和低噪声电荷放大器.本文介绍了ADA4625-1/ADA4625-2主要特性,简化电路图,以及多种应用电路包括20位精度±10V电压源,带DC伺服低噪音水听器放大器和加速度计放大器,吉它预放大器, 10Hz四阶车比雪夫低通滤波器(0.01dB波纹)电路等以及评估板EVAL-ADA4625-2ARDZ主要特性,电路图,材料清单和PCB设计图.

The ADA4625-1/ADA4625-2 build on Analog Devices, Inc., high voltage, single-supply, rail-to-rail output (RRO), precision junction field effect transistor (JFET) input op amps, taking that product type to a level of speed and low noise that has not been made available to the market previously.

The ADA4625-1/ADA4625-2 provide optimal performance in high voltage, high gain, and low noise applications. The input common-mode voltage range includes the negative supply, and the output swings rail to rail. This enables the user to maximize dynamic input range in low voltage, single supply appl

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