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PVA560 Low-Noise Voltage Preamplifier#嘉士達(dá)新品推薦

更新時間:2026-04-08

瀏覽次數(shù):196

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電壓前置放大器

 

3 nV/√Hz輸入噪聲(典型值)

1MHz最大帶寬

1/f噪聲低轉(zhuǎn)角頻率:10Hz

可變增益范圍:1至50000(1-2-5模式)

交流或直流耦合

兩種可配置帶寬濾波器(低通/高通)

差分或單端輸入

外部供電或電池供電

 

PVA560高性能和低噪聲的電壓前置放大器,用于放大低頻微弱信號,且可配置不同帶寬和增益,適用于包括:低溫測量、芯片低頻噪聲測量、傳感器檢測、光電檢測、音頻和振動工程在內(nèi)的廣泛應(yīng)用。

 

儀器可以單獨(dú)使用,或聯(lián)合:示波器、鎖相放大器、動態(tài)信號分析


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


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