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AMC1306x Reinforced Isolated Modulator

Texas Instruments offers the AMC1306E05/AMC1306E25 small reinforced isolated modulators with ±50 mV/±250 mV input and Manchester-encoded CMOS interface

Image of Texas Instruments' AMC1306x Reinforced Isolated ModulatorTexas Instruments' AMC1306x 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 8000 VPEAK according to the DIN V VDE V 0884-10 and UL1577 standards. Used in conjunction with isolated power supplies, this isolated modulator separates parts of the system that operate on different common-mode voltage levels and protects lower-voltage parts from damage.

The input of the AMC1306x is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The unique low input voltage range of the ±50 mV device allows significant reduction of the power dissipation through the shunt and supports excellent AC and DC performance. The output bitstream of the AMC1306 is Manchester coded (AMC1306Ex) or uncoded (AMC1306Mx), depending on the derivate. By using an integrated digital filter (such as those in the TMS320F2807x or TMS320F2837x microcontroller families) to decimate the bitstream, the device can achieve 16-bits of resolution with a dynamic range of 85 dB at a data rate of 78 kSPS.

The bitstream output of the Manchester coded AMC1306Ex versions support single-wire data and clock transfer without having to consider the setup and hold time requirements of the receiving device.

Features
  • Pin-compatible family optimized for shunt-resistor-based current measurements:
    • ±50 mV or ±250 mV input voltage ranges
    • Manchester coded or uncoded bitstream options
  • Excellent DC performance:
    • Offset error: ±100 µV (max)
    • Offset drift: 1 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±40 ppm/°C (max)
  • Transient immunity: 100 kV/µs (typ)
  • System-level diagnostic features
  • Safety-related certifications:
    • 7000 VPEAK 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-component acceptance service notice, IEC 60950-1, and IEC 60065 end equipment standards
  • Fully specified over the extended industrial temperature range: -40°C to +125°C

Applications

  • Shunt-resistor-based current sensing and isolated voltage measurements in:
    • Industrial motor drives
    • Photovoltaic inverters
    • Uninterruptible power supplies

AMC1306x Reinforced Isolated Modulator

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC ISOLATED MOD 16BIT 78K 8SOICAMC1306E25DWVRIC ISOLATED MOD 16BIT 78K 8SOIC480 - Immediate
10001 - Factory Stock
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IC ISOLATED MOD 16BIT 78K 8SOICAMC1306E05DWVIC ISOLATED MOD 16BIT 78K 8SOIC107 - Immediate
2048 - Factory Stock
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Evaluation Board

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
AMC1306 SMALL REINFORCED ISOLATEAMC1306EVMAMC1306 SMALL REINFORCED ISOLATE1 - Immediate
30 - Factory Stock
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Published: 2017-06-29