PVA560 Low-Noise Voltage Preamplifier#嘉士达新品推荐
更新时间：2026-04-08
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PVA560 Low-Noise Voltage Preamplifier | DC to 1 MHz | 3 nV/√Hz Input Noise | Gain 1–50,000 | Battery/AC Powered
The PVA560 is a high-performance, ultra-low-noise voltage preamplifier designed for amplifying weak low-frequency signals. With a noise density of just 3 nV/√Hz, DC to 1 MHz bandwidth, and variable gain from 1 to 50,000 (1-2-5 sequence), it is ideal for cryogenics, low-frequency noise measurements, sensor signal conditioning, photodetection, audio, and vibration applications.
PVA560电压前置放大器
3 nV/√Hz输入噪声(典型值)
1MHz最大带宽
1/f噪声低转角频率:10Hz
可变增益范围:1至50000(1-2-5模式)
交流或直流耦合
两种可配置带宽滤波器(低通/高通)
差分或单端输入
外部供电或电池供电
PVA560高性能和低噪声的电压前置放大器，用于放大低频微弱信号，且可配置不同带宽和增益，适用于包括:低温测量、芯片低频噪声测量、传感器检测、光电检测、音频和振动工程在内的广泛应用。
仪器可以单独使用，或联合:示波器、锁相放大器、动态信号分析
Parameter | Value |
Input Noise | 3 nV/√Hz typ. (50Ω shorted) |
Bandwidth | DC to 1 MHz |
1/f Noise Corner | 10 Hz |
Gain Range | 1 to 50,000 (1-2-5 sequence) |
Gain Modes | Low-Noise Mode / High-Reserve Mode |
Input Coupling | AC or DC |
Input Mode | Differential or Single-Ended |
Input Impedance | 100 MΩ // 25 pF |
CMRR | 100 dB (DC to 1 kHz) |
Max Input Level | 3 Vpp |
Outputs | 600Ω & 50Ω BNC, 10 Vpp max |
Filters | 1st or 2nd order (6/12 dB/oct), HPF/LPF/BPF, 0.03 Hz to 1 MHz |
Filter Reset | Front-panel button for time constant reset |
Gain Stability | 100 ppm/°C typ. |
Flatness | ±0.5 dB up to 300 kHz (Gain=1000) |
Power | AC (220V) or built-in rechargeable Li-battery (10 hrs runtime, 4 hrs charge) |
Dimensions | 288 × 198 × 95 mm |
Weight | 2960 g (including battery) |
Warranty | 1 year |
