AMC1305M25 Datasheet | Texas Instruments

ures - 1 Pin-patible Family Optimized for Shunt Resistor-Based Current Measurements: - ±50-m V or ±250-m V Input Voltage Ranges - CMOS or LVDS Digital Interface Options - Excellent DC Performance Supporting High Precision Sensing on System Level: - Offset Error: ±50 µV or ±150 µV (max) - Offset Drift: 1.3 µV/°C (max) - Gain Error: ±0.3% (max) - Gain Drift: ±40 ppm/°C (max) - Safety-Related Certifications: - 7000-VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 - 5000-VRMS Isolation for 1 Minute per UL1577 - CAN/CSA No. 5A-ponent Acceptance Service Notice, IEC 60950-1, and IEC 60065 End Equipment Standards - Transient Immunity: 15 k V/µs (min) - High Electromagnetic Field Immunity (see Application Note SLLA181A) - External 5-MHz to 20-MHz Clock Input for Easier System-Level Synchronization - Fully Specified Over the Extended Industrial Temperature Range 2 Applications - Shunt Resistor Based Current Sensing In: - Industrial Motor Drives - Photovoltaic Inverters - Uninterruptible Power Supplies - Isolated Voltage Sensing 3 Description The AMC1305 device is a precision, delta-sigma (ΔΣ) modulator with the output separated from the input circuitry by a capacitive double isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 7000 VPEAK according to the DIN V VDE V 0884-10, UL1577, and CSA standards. Used in conjunction with isolated power supplies, the device prevents noise currents on a high mon-mode voltage line from entering the local system ground and interfering with or damaging low voltage circuitry. The AMC1305 is optimized for direct connection to shunt resistors or other low voltage level signal sources and supports excellent dc and ac performance. Shunt resistors are typically used to sense currents in motor drives, green energy generation systems, or other industrial applications. By using an appropriate digital filter (that is, as integrated on the...