TA044 是一款有源差分探头,适用于高达 ±7000 V(DC + 峰值交流)的高共模电压测量应用。
该差分探头扩展了标准单端输入示波器的功能,从而可以安全、准确地进行高压差分测量。应用包括在电源电路应用中进行安全测量,以及采集串行通信总线中的低速平衡差分信号。
TA044 是一款有源探头,由四节 AA 电池供电,或标配 TA531 USB 转 DC 插孔电源线。TA531 旨在与通用 USB 壁式充电器(不包括在内)一起使用。
注意:此探头随附的弹簧钩额定电压为 1000 V。
TA044 主要技术参数
Bandwidth | DC to 70MHz (–3 dB) |
Attenuation ratio | 100:1/1000:1 |
Accuracy | ±2% |
Input impedance | 10 M Ω // 10 pF each side to ground |
Input voltage | |
Differential range* (100:1) | ±700 V (DC + peak AC) or 700 V RMS |
Common mode range | ±7000V (DC + peak AC) or 2500 V RMS |
Absolute max. voltage (common mode) | ±7000 V (DC + peak AC) or 2500 V RMS |
Absolute max. voltage (differential mode) | ±7000 V (DC + peak AC) or 5000 V RMS |
Output voltage | |
Swing | ±7V into 50 kΩ load |
Offset (typical) | <±5 mV |
Noise (typical) | 0.9 mV RMS |
Source impedance (typical) | 50 Ω |
CMRR (typical) | 80 dB @ 60 Hz; 50 dB @ 1 MHz |
Ambient operating temperature | –10 to 40 ℃ |
Ambient storage temperature | –30 to 70 ℃ |
Power requirements | |
Standard | 4xAA cells or 6 V DC / 200 mA mains adaptor |
Length of input leads | 60 cm |
Length of BNC lead | 90 cm |
Weight | 500 g |
Dimension (LxWxH) | 202 mm x 83 mm x 38 mm |