FT-AV-SI1306是一款高性能Σ-Δ调制器,基于电容隔离技术,其输出与输入分离。该器件的线性差分输入信号范围为±50mV(满量程±64mV)或±250mV范围(满量程±320mV)。差分输入非常适合需要隔离的高压应用中基于分流电阻的电流检测。
模拟输入经过放大,并由二阶Σ-Δ调制器连续采样,然后转换为高速,单比特数据流。输出数据与外部时钟同步,时钟上升沿有效,频率范围为5MHz至21MHz。通过使用适当的数字滤波器(例如sinc3滤波器)来抽取比特流,该器件可以在78.125KPS的条件下以20MHz的主时钟实现16位分辨率和86dB/82.5dB信噪比(SNR)。故障安全功能包括输入共模过压检测和VDD1缺失检测,简化了系统设计和诊断。
产品特性
● 高达5000Vrms的绝缘电压
● 时钟频率:5MHz至21MHz
● ±50mV或±250mV线性输入电压范围
● 出色的直流性能:
● 失调误差:±50μV或±100μV(最大值)
● 失调漂移:±0.5μV/℃或-0.5~1.5μV/℃(最大值)
● 增益误差:±0.2%(最大值)
● 增益漂移:±40ppm/℃(最大)
● 信噪比:82.5dB或86dB(Typ)
● 高CMTI:150kV/us(典型值)
● 系统级诊断功能:
● AVDD监控
● 输入共模过压检测
● 工作温度:-40℃〜125℃
● 封装:SOP8(300mil)/SOP16(300mil)
安全认证
● UL1577认证: 1分钟 5kVrms
● CQC认证:符合GB4943.1-2011
● CSA认证:组件符合5A
● VDE认证:DIN V VDE V 0884-11:2017-01
应用场景
● 分流电流监控
● 交流电机控制
● 电力和太阳能逆变器
● 不间断电源供应
● 车载充电器
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.