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NSI1303M21 PDF预览

NSI1303M21

更新时间: 2024-11-18 17:14:59
品牌 Logo 应用领域
纳芯微 - NOVOSENSE 隔离技术
页数 文件大小 规格书
28页 1876K
描述
NSI1303M21是一款高性能Σ-Δ调制器,基于NOVOSENSE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±250mV范围(满量程±320mV)。差分输入非常适合需要隔离的

NSI1303M21 数据手册

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NSI1303M/Dx  
High Reliability Reinforced Isolated  
Sigma-Delta Modulator with Internal Clock  
Datasheet (EN) 1.0  
RoHS-Compliant Packages:  
Product Overview  
SOP8(300mil)  
SOP16(300mil)  
The NSI1303 is a high performance Σ-Δ modulator with  
output separated from input based on the NOVOSENSE  
capacitive isolation technology. The device has a linear  
differential input signal range of 50mV ( 64mV full-scale)  
or 250mV ( 320mV full-scale). The differential input is  
ideally suited to shunt resistor-based current sensing in  
high voltage applications where isolation is required.  
The analog input is amplified and continuously sampled  
by a second-order Σ-Δ modulator and converted to a  
high speed, single bit data stream. The output bit-stream  
of the NSI1303 is synchronized to the internally  
generated clock. NSI1303 can achieve 16 bits resolution  
and an 85dB (typ) signal to noise ratio (SNR) at  
78.125kSPS by using an appropriate digital filter (such as  
sinc3 filter) to decimate the bitstream from 20MHz  
internal sampling clock.  
Safety Regulatory Approvals  
UL recognition: up to 5000Vrms for 1 minute per UL1577  
CQC certification per GB4943.1-2011  
CSA component notice 5A approval IEC60950-1  
standard  
DIN VDE V 0884-11:2017-01  
Applications  
Shunt current monitoring  
AC motor controls  
Uninterruptible Power Suppliers  
Automotive onboard chargers  
The fail-safe functions including input common-mode  
overvoltage detection and missing AVDD detection  
simplify system-level design and diagnostics.  
Device Information  
Part Number  
Package  
Body Size  
Key Features  
NSI1303M/Dx-DSWVR  
NSI1303M/Dx-DSWR  
SOP8(300mil)  
5.85mm × 7.50mm  
Up to 5000VRMS Insulation Voltage  
SOP16(300mil) 10.30mm × 7.50mm  
10MHz and 20MHz internal clock frequency options  
50mV or 250mV Linear Input Voltage Range  
Excellent DC Performance:  
Functional Block Diagrams  
Offset Error: 50μV or 100μV (Max)  
Offset Drift: 1μV/(Max)  
Gain Error: 0.2% (Max)  
AVDD  
DVDD  
VDD1 detection  
Reference  
INP  
INN  
Σ-Δ modulator  
TX  
RX  
DOUT  
RX  
TX  
Gain Drift: 40ppm/(Max)  
High CMTI: 150kV/μs (Typ)  
Os cilla tor  
CLKO UT  
VCM detection  
System-Level Diagnostic Features:  
AGND  
DGND  
AVDD monitoring  
Figure 1. NSI1303M/Dx Block Diagram  
Input common-mode overvoltage detection  
Operation Temperature: -40~125℃  
Copyright © 2024, NOVOSENSE  
Page 1  

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