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AMC1305M25DWR Datasheet(PDF) 1 Page - Texas Instruments |
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AMC1305M25DWR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 39 page DOUT CLKIN DVDD DGND AGND AINN AINP AVDD AMC1305 HV+ HV- To Load Floating Power Supply SD-Cx SD-Dx TMS320F2837x 3.3 V, or 5.0 V RSHUNT Gate Driver Gate Driver 5.0 V Product Folder Sample & Buy Technical Documents Tools & Software Support & Community AMC1305L25, AMC1305M05, AMC1305M25 SBAS654C – JUNE 2014 – REVISED DECEMBER 2014 AMC1305x High-Precision, Reinforced Isolated Delta-Sigma Modulators 1 Features 3 Description The AMC1305 is a precision, delta-sigma ( ΔΣ) 1 • Pin-Compatible Family Optimized for Shunt- modulator with the output separated from the input Resistor-Based Current Measurements: circuitry by a capacitive double isolation barrier that is – ±50-mV or ±250-mV Input Voltage Ranges highly resistant to magnetic interference. This barrier – CMOS or LVDS Digital Interface Options is certified to provide reinforced isolation of up to 7000 VPEAK according to the DIN V VDE V 0884-10, • Excellent DC Performance Supporting High- UL1577, and CSA standards. Used in conjunction Precision Sensing on System Level: with isolated power supplies, the device prevents – Offset Error: ±50 µV or ±150 µV (max) noise currents on a high common-mode voltage line – Offset Drift: 1.3 µV/°C (max) from entering the local system ground and interfering with or damaging low voltage circuitry. – Gain Error: ±0.3% (max) The AMC1305 is optimized for direct connection to – Gain Drift: ±40 ppm/°C (max) shunt resistors or other low voltage level signal • Certified Isolation Barrier: sources while supporting excellent dc and ac – Reinforced Isolation Rating performance. Shunt resistors are typically used to – VDE V 0884-10, UL1577, and CSA Approved sense currents in motor drives, green energy generation systems, or other industrial applications. – Isolation Voltages: 7000 VPEAK, 10000 VSURGE By using an appropriate digital filter (that is, as – Working Voltages: 1500 VDC, 1000 VAC, rms integrated on the TMS320F2837x) to decimate the bit – Transient Immunity: 15 kV/µs (min) stream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB (13.8 ENOB) at a data • High Electromagnetic Field Immunity rate of 78 kSPS. (see Application Note SLLA181A) On the high-side, the modulator is supplied with a • External 5-MHz to 20-MHz Clock Input for nominal voltage of 5 V (AVDD), whereas the isolated Easier System-Level Synchronization digital interface operates from a 3.3-V or 5-V power • Fully Specified Over the Extended Industrial supply (DVDD). Temperature Range The AMC1305 is available in a wide-body SOIC-16 (DW) package and is specified from –40°C to 125°C. 2 Applications • Shunt Resistor Based Current Sensing in: Device Information(1) – Industrial Motor Drives PART NUMBER PACKAGE BODY SIZE (NOM) – Photovoltaic Inverters AMC1305x SOIC (16) 10.30 mm × 7.50 mm – Uninterruptible Power Supplies (1) For all available packages, see the orderable addendum at the end of the datasheet. • Isolated Voltage Sensing 4 Simplified Schematic 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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