纳芯微NSI1306M05-DSWR 隔离采样

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Product Overview The NSI1306 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 data is synchronous to the external clock with a frequency range from 5MHz to 21MHz. By using an appropriate digital filter (such as sinc3 filter) to decimate the bitstream, the device can achieve 16 bits resolution and an 86dB/82.5dB signal to noise ratio (SNR) at 78.125kSPS with a 20MHz master clock. The fail-safe functions including input common-mode overvoltage detection and missing AVDD detection simplify system-level design and diagnostics.

Key Features ? Up to 5000VRMS Insulation Voltage ? Clock frequency: 5MHz to 21MHz ? ±50mV or ±250mV Linear Input Voltage Range ? Excellent DC Performance: ? Offset Error: ±50μV or ±100μV (Max) ? Offset Drift: -0.5~1.5μV/℃ (Max) ? Gain Error: ±0.2% (Max) ? Gain Drift: ±40ppm/℃ (Max) ? SNR: 82.5dB or 86dB (Typ) ? High CMTI: 150kV/μs (Typ) ? System-Level Diagnostic Features: ? AVDD monitoring ? Input common-mode overvoltage detection

? Operation Temperature: -40℃~125℃ ? RoHS-Compliant Packages: ? SOP8(300mil) ? SOP16(300mil) 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 ? Power and solar inverters ? Uninterruptible Power Suppliers ? Automotive onboard chargers