HLVA-100 LOGARITHMIC WIDEBAND VOLTAGE AMPLIFIER（对数电压放大器） 

GENERAL DESCRIPTION
THE FEMTO HLVA-100 OFFERS A WIDE DYNAMIC RANGE OF UP TO 80 DB. WITH A DC COUPLED INPUT AND A RISE AND FALL TIME OF JUST 5 NS THE HLVA-100 IS THE IDEAL TOOL FOR THE MEASUREMENT OF FAST AND HIGH DYNAMIC PULSES. THE INPUT VOLTAGE NOISE IS EXTREMELY LOW WITH JUST 2 NV/√HZ. THE LOGARITHMIC GAIN CURVE OFFERS HIGH GAIN FOR SMALL INPUT SIGNALS AND RELATIVELY LOW GAIN FOR HIGH INPUT SIGNALS. THEREFORE THE HLVA-100 IS THE IDEAL AMPLIFIER FOR SIGNALS WITH HIGH DYNAMIC RANGE AND APPLICATIONS IN WHICH A SIGNAL COMPRESSION IS DESIRED.

输入偏移

HLVA-100提供了3中具有可能性的输入补偿电压（基准校正）。3种方法都必须除去依赖于偏移的温度和小的源电压偏移的因素。

通过微调筒手动调零

±10V控制电压远程调零

循环执行远程自动归零基线校正

 产品应用

LIDAR系统

信号压缩

时间分辨脉冲和瞬时测量

质谱仪

粒子探测

技术参数：

型号	HLVA-100
输入电压范围	±20 µV ... ±200 mV and ±200 µV ... ±2 V
动态范围	开关可选择 Typ.60dB(精确测量放大器) Max.8060dB(信号检测)
缩放	12,5 mV/dB, 250 mV/decade (@ 50 Ω load)
线性	±1 dB (for pulse of min. 20 ns pulse width)
输入噪声电压	2 nV/√Hz
输入电压漂移	0.6 µV/°C
输入/输出	50 Ω, BNC
上升/下降时间	5 ns @ 40 dB step
输出电压范围	+50 ... +1075 mV typ. @ 50 Ω load (if output is adjusted to 1 V at 100 mV input)
输出漂移电压范围	±500 mV, adjustable by offset-trimpot
基准校正	Acquisition time	30 µs (min. sample pulse width)
	Baseline hold droop rate	1 µV/s (typ. @ 25°C)
	Loop cut-off frequency	1.5 kHz
电源供应	±15 V, +100 mA/−150 mA,
电子数字控制	TTL, CMOS, opto-isolated