1 MHz, High-Precision XtremeSense™ TMR Current Sensors with Ultra-Low Noise and Enhanced Isolation

CT425-8

The CT42x family of XtremeSense TMR current sensors offers high-precision current measurements with ultra-low noise, a fast 300ns response time, enhanced isolation, and an integrated current carrying conductor (CCC) for simplified design. The CT425/428 operate at 5V, while the CT426/427 operate at 3.3V.

Product Details

Top Features

CT425 & CT428 (5.0 V version), CT426 & CT427 (3.3 V version)
Integrated 0.5 mΩ Conductor
Total Error Output: ±0.5% FS (typ.)
300 ns Response Time, 1 MHz Bandwidth
Noise as Low as 9 mARMS
Immunity to Common Mode Field: -54 dB
Rated Isolation Voltage: >4 kVRMS
UL/IEC 62368-1 and UL1577 Certification
IEC 61000-4-5 Certified
AC or DC Current Range:
- +20.0 ADC / ±20.0 APK
- +30.0 ADC / ±30.0 APK
- +50.0 ADC / ±50.0 APK
- +65.0 ADC / ±65.0 APK
Pin #6 Functionality
- CT427 & CT248: Over-Current Detection Output Pin
- CT425 & CT426: Enhanced Filter to Lower Noise

Part Number Specifications and Availability

Allegro's XtremeSense™ TMR technology

Superior magnetic sensitivity, low power consumption, and compact size compared to other technologies, driving innovation in applications like renewable energy, electric vehicles, and consumer electronics.

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