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标题: 电荷放大器 [打印本页]

作者: shian1 时间: 2003-2-18 13:05 标题: 电荷放大器

请问ADI工程师：
怎样设计低噪声电荷放大器，及你公司有那些相关器件。

作者: silverwolf 时间: 2003-2-18 13:05

以下是ADI公司的工程师的回答:
As for the amplifier for charge amplification, it should has the low input bias current, low input capacitance and has enough bandwidth. ADI has a lot of this kind of parts for your consideration.

You can select the FET input amplifiers. The following is my recommendation:

Part number Bandwidth(MHz) Input Bias Current (pA) Input Capacitance (pF)
AD8065 145 1 (AD8066 is dual AD8065)
AD8033 80 1 (AD8034 is dual AD8033)
AD8610 25 10
AD8620 25 10
AD823 16 3 1.8
AD843 34 600 6
AD744 13 100 5.5
AD845 16 500 8
OP42 10 100 6
AD745 20 250 20
AD795 1 1 1
AD820 1.9 2 2.8
AD743 4.5 250 20

I would like to recommend you selecting AD8033/34, and AD8055/56. Because they are new parts with lower price and high performance. Also, you can apply for the free samples from our website www.analog.com.

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