DLPCA-200千赫兹带宽电流前置放大器
BANDWIDTH AND FREQUENCY RESPONSE INDEPENDENT OF SOURCE CAPACITANCE
Unlike other amplifiers available the DLPCA-200 requires no particular adaptation such as frequency compensation for different sources. The gain stays constant and the frequency response is nicely flat even for high source capacitances up to 1 nF. Common issues such as gain peaking or even oscillations are avoided by the careful amplifier design and thorough testing of the units prior to shipment.
In addition the DLPCA-200 provides high speed even for large gain settings. At the highest gain setting of 1011 V/A it provides a 3 dB bandwidth of 1.1 kHz and a 300 µs rise time. For low frequency applications not requiring the full bandwidth the unit has a switchable 10 Hz low pass filter to eliminate wideband noise and thus allowing accurate and ultra low noise DC current measurements down to femto amps.
产品应用：
光电二极管和光电倍增管放大器
扫描隧道显微镜
光谱学
粒子加速器/同步加速器束流检测
电流检测器
锁定前置放大器，A/D转换器等
跨阻放大器DLPCA-200技术参数：
|
型号 |
DLPCA-200 |
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|
性能范围 |
低噪声 高速 |
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|
可变增益[V/A] |
103 |
104 |
105 |
106 |
107 |
108 |
109 |
105 |
106 |
107 |
108 |
109 |
1010 |
1011 |
|
带宽(-3dB ) [KHZ] |
500 |
500 |
400 |
200 |
50 |
7 |
1.1 |
500 |
500 |
400 |
200 |
50 |
7 |
1.1 |
|
上升时间（10%-90%） |
700 ns |
700 ns |
900 ns |
1.8μs |
7 μs |
50μs |
300μs |
700 ns |
700 ns |
900 ns |
1.8μs |
7 μs |
50μs |
300μs |
|
平均输入噪声* （/√Hz） |
20 pA |
2.3 pA |
450 fA |
130 fA |
43 fA |
13 fA |
4.3 fA |
13 pA |
1.8 pA |
440 fA |
130 fA |
43 fA |
13 fA |
4.3 fA |
|
jing确度 |
Gain±1%，平整度0.1dB |
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|
低通滤波器 |
可调节开关10Hz |
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|
输出性能 |
±10V, ±30mA |
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|
偏压 |
±10v, zui大 22mA，连接BNC盾输入插座，可切换至GND |
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|
电源 |
±15V，+120mA /-80 mA typ., ±200 mA |
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|
控制接口 |
5种光隔离数字输入，TTL/CMOS兼容的，模拟偏压控制电压输入 |
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箱尺寸 |
170×60×45mm(L×W×H),重320g(0.74 lb) |
