Hello.
I have a circuit with an AD8033 in voltage follower topology (gain=1), with Vs+=24V, Vs-=0V (GND).
The input signal is a positive sine of 10Vpp.
In figure 1, at frequency 100kHz, the output (blue) follows the input (yellow).
1c82f882051acdad6c43215281a77c9a…
Hi,
Figure 53 of the data sheet shows the simplified Input Stage of AD8033/34.
There are two input stages; the JFET input and the Bipolar Input.
The Input Overdrive Section discussed how the transition occurs between these two input stages and this is…
Original Question: troubles with SPICE models of AD8033 and AD8065 by qwerty1234
hello,
i am working with your open SPICE models of AD8033 and AD8065and i am having troubles with the voltage gain characterization.
I would like to reproduce the OPEN-LOOP…
如题，自己仿真了一放大电路，但没弄明白仿真出来的结果。以下的电路图中，施加电流信号，仿真得到带宽为59MHz，增益为820。增益这么大理解，但带宽这么大就搞不懂了。。。 我也网上查过，AD8033在增益为1时，带宽为80MHz。
后来我又采用两级运放放大，得到的带宽只有5.42MHz,增益为82.6，如下图。
所以想到论坛里发帖问问， 运放设计这些问题。
Hello,
This is a good question, the AD8034 is a dual FET input amplifier. The AD8033 is the single version, we typically dont build dual Spice models, we just use two AD8033 Spice models to get a AD8034. For your application I would recommend just using…
Need high CMRR as well. I am using AD8033 as the front end, need a fast difference amplifier with at least +-7.5 voltage so I don't have to match the resistors. You need to have laser trimmed resistor in the difference amplifier.
在电路中，噪声经常是各位工程师需要考虑的干扰因素，这会影响到攻城狮对于电路数据的判断，ADI公司提供了不少高性能、低噪声的模拟器件，例如：
低噪声、1 GHz FastFET 运算放大器 ADA4817-1：https://www.analog.com/cn/products/ada4817-1.html
极低成本、高速FastFET运算放大器 AD8033：https://www.analog.com/cn/products/ad8033.html
高电压、低噪声、低失真、单位增益稳定、高速、双通道…
仪器仪表和测量。在做光电探测器。使用过AD8033，AD8066，ADA4817-1.现在还是在设计测试阶段。希望搞出套低噪声，高带宽的光电前置放大器。
Hi Jino,
I replied back to your email but I have received notifications that my server was delayed sending your message so I am assuming you haven't read my response.
Here is the schematic and all the symbols and libraries that you need. If there…