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J2171A - Picotest High PSRR 電源適配器 | 洛克Lockinc
J2171A - Picotest High PSRR 電源適配器 | 洛克Lockinc

J2171A

J2171A -Picotest High PSRR Power Supply Adapte

產品說明
  • For use with the J2110A, J2111A, J2112A and J2113A
  • Universal AC input voltage 100V-240V for worldwide performance
  • +/-12V 70mA output
  • Ultra high PSRR
  • Very low noise
  • Very low output impedance
  • 適用於 J2110A、J2111A、J2112A、J2113A 和其他 Picotest Injectors 
  • 通用交流輸入電壓 100V-240V，適用於全球範圍
  • +/-12V 200mA輸出
  • 超高的雜訊壓懸比 (PSRR)
  • 低噪、低干擾
  • 極低的輸出阻抗
手冊下載 (4.8 MB)
功能說明

The J2171A power adapter is specially designed for use with the Picotest J2110A, J2111A, J2112A and J2113A signal injector products. The supply combines a universal worldwide input (100 to 240 VAC ) with two high performance linear regulators.

While there are many off-the-shelf power supplies available that can provide a universal input voltage and 12V output voltage, they do not provide the same performance as the J2171A. Most switching regulators produce significant ripple at and above 100kHz. This ripple passes through the PSRR of the internal opamps, reducing the noise floor. While this may work in many applications, it is less than ideal. Typical switching power supplies and even typical linear regulators have a high output impedance at 40MHz, due to the ESL of the output capacitors and the nature of the control loop.

The J2171A uses a discrete design approach, offering very low output impedance, stable performance with large ceramic decoupling capacitors and ultra high PSRR compared with typical off-the-shelf devices. To maintain a good noise floor for various measurements, the power supply must have very low noise.

What's included:

1. J2171A High PSRR Regulated Adapter
2. User manual
3. 1 Year Warranty

該電源結合了世界通用電壓（100至240伏特）和兩個高性能的線性穩壓器。

儘管市面上許多現有的電源供應器可以提供通用輸入電壓和12伏特的輸出電壓，但它們的性能遠不及 J2171A。大多數開關式穩壓器在100千赫及以上的頻率會產生明顯的紋波。這種紋波會穿過內部運算放大器（op-amp）降噪的PSRR，對於許多應用來說可以被接受，但並不理想。典型的開關式電源供應器，或一般線性穩壓器，在40兆赫范圍內具有較高的輸出阻抗，這是由於輸出電容器的等效串聯電感（ESL）和控制回路的特性所致。

為解決這類問題，J2171A 采用了分立設計方法，提供非常低的輸出阻抗，並且與大型陶瓷分離電容器一起使用時，性能相對穩定，而且其PSRR遠高於一般現有的設備。

 

規格說明
Specifications
 Characteristic  Rating
Absolute Maximum Input Voltage 240V, 60Hz
Output Voltage +/-12V
Maximum Icc 200mA
Temperature Range 0-50C
Caution: To avoid equipment damage and/or severe injuries or death ensure that the absolute maximum ratings are observed and not exceeded at all times.
 
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