Si8920 隔离放大器，用于电流分流测量
The Si8920 is a galvanically isolated analogue amplifier. Their low voltage and differential input is ideal for measuring voltage across a current shunt resistor or for any place where a sensor must be isolated from the control system.
Output is a differential analogue signal amplified by either 8.1x or 16.2x. The very low signal delay allows control systems to respond quickly to fault conditions or changes in load. Low offset and gain drift ensure that accuracy is maintained over the entire operating temperature range.
High common mode transient immunity means that the Si8920 will deliver accurate measurements even in the presence of high power switching like would be found in a motor drive system or inverter.
To help evaluate the Si8920 there is a dedicated development kit available - SI8920ISO-KIT (RS 9026806). It is populated with the Si8920BC-IP and enables quick connection to a shunt resistor.
Si8920 提供 4 种型号：
Si8920AC-IP (RS
901-3967 ) ，输入范围为 ±100 mV ，采用鸥翼 DIP-8 封装
Si8920BC-IP (RS
901-3976 ) ，输入范围为 ±200 mV ，采用鸥翼 DIP-8 封装
Si8920AD-IS (RS
901-3979 ) ，输入范围为 ±100 mV ，采用 SOIC-16 封装
Si8920BD-IS (RS
901-3973 ) ，输入范围为 ±200 mV ，采用 SOIC-16 封装
该产品为定制化产品，不可取消或退货，并遵循RS销售条款和条件。
电流感应放大器的电压输出与极低值电阻器的电压降成比例，通常在高电流电源导轨。 因此可测量电源导轨的电流。
