Chipanalog CA-IS1305AM25W Isolated Sensing IC

Chipanalog CA-IS1305AM25W

The CA‐IS1305x family of devices is series of precision isolated sigma‐delta (Σ‐Δ) modulator and optimized for shunt resistor‐based current sensing or other small signal measurement applications. The input current‐sense amplifier monitors current flow through a shunt (sense) resistor and the sigma‐delta modulator converts the analog input to a digital bit stream of 1's and 0's at a much higher frequency. The digital output stage of CA‐IS1305x provides uncoded bit‐stream.

Features

• Differential Input Voltage Range
• ±250 mV
• Ultra‐Low Input Offset Voltage and Drift
• ±150μV(max) @ 25°C input offset voltage
• Low Gain Error and Drift
• ±0.3%(max) @ 25°C gain error
• ±40ppm/°C(max) gain drift
• Excellent AC Performance
• SNR: 85dB (typ)
• THD: ‐93dB (typ)
• 16‐Bit Resolution with No Missing Codes
• Robust Isolation Barrier
• High lifetime: >40 years
• Up to 5000VRMS isolation rating
• ±150 kV/μs typical CMTI
• Fault Diagnostic Functions Improve System Safety
• Wide Operating Temperature Range
• –40°C to 125°C
• 16‐pin wide‐body SOIC package
• Safety Regulatory Approvals

Applications

• Industrial Motor Controls and Drives
• Uninterruptible Power Supplies(UPS)
• Isolated Power Supply

Device Information

Download Datasheet (PDF)