论文标题
超低噪声，双极，可编程电流来源
Ultra-low noise, bi-polar, programmable current sources
论文作者
论文摘要
我们介绍了两种配置中完全开源的超低噪声可编程当前源系统的设计过程和实现。尽管最初设计为用于光学泵送磁力计（OPM）的线圈驱动器，但设备规格使它们在一系列应用中可能有用。设备的双向电流范围为$ \ pm $ 〜10〜ma和$ \ pm $ 〜250〜MA，在三个独立渠道（16位分辨率）上。这两种设备均具有狭窄的1/F噪声带宽为1〜Hz，为高性能OPMS启用磁场操纵。它们的低噪声为146.3〜Pa/$ \ sqrt {\ Mathrm {hz}} $和4114〜PA/$ \ sqrt {\ Mathrm {hz}} $，它转化为14.57〜ppb/$ \ sqrt {\ sqrt {\ sqrt { 16.46〜ppb/$ \ sqrt {\ mathrm {hz}} $ noise相对于全尺度。
We present the design process and implementation of fully open-source, ultra-low noise programmable current source systems in two configurations. Although originally designed as coil drivers for Optically Pumped Magnetometers (OPMs), the device specifications make them potentially useful in a range of applications. The devices feature a bi-directional current range of $\pm$~10~mA and $\pm$~250~mA respectively on three independent channels with 16-bit resolution. Both devices feature narrow 1/f noise bandwidth of 1~Hz, enabling magnetic field manipulation for high-performance OPMs. They exhibit low noise of 146.3~pA/$\sqrt{\mathrm{Hz}}$ and 4114~pA/$\sqrt{\mathrm{Hz}}$ which translates to 14.57~ppb/$\sqrt{\mathrm{Hz}}$ and 16.46~ppb/$\sqrt{\mathrm{Hz}}$ noise relative to full scale.
