TI AMC1303M2520DWVR

AMC1303 (AMC1303x0510, AMC1303x0520, AMC1303x2510 and AMC1303x2520) is a family of high-precision Δ-Σ modulators whose output is separated from the input circuit by a double capacitive isolation barrier with excellent EMI immunity. This isolation barrier is certified to provide reinforced isolation up to 7000 VPK in accordance with DIN V VDE V 0884-11 and UL1577 standards. When used with an isolated power supply, this isolated modulator can separate components in systems operating at different common-mode voltage levels and protect lower-voltage components from damage. The AMC1303 input is optimized for direct connection to shunt resistors or other low-voltage signal sources. The ±50mV input voltage range option enables significant reduction of power dissipation across the shunt. The AMC1303 output bitstream is synchronized to an internally generated clock and is Manchester-encoded (AMC1303Ex) or non-encoded (AMC1303Mx). By decimating the bitstream using an integrated digital filter — such as those found in the TMS320F2807x or TMS320F2837x microcontroller families — the device achieves 16-bit resolution with 85dB dynamic range at an effective output data rate of 78kSPS. The Manchester-encoded AMC1303Ex version's bitstream output supports single-wire data and clock transmission, with no concern for the setup and hold time requirements of the receiving device.

• Pin-compatible family optimized for shunt resistor-based current measurement
• Input voltage range: ±50mV or ±250mV
• Manchester-encoded or unencoded bitstream options
• 10MHz and 20MHz clock options
• Excellent DC performance:
  • Offset error: ±50μV or ±100μV (maximum)
  • Offset drift: ±1 μV/℃ (maximum)
  • Gain error: ±0.2% (maximum)
  • Gain drift: ±40ppm/℃ (maximum)
• Transient immunity: 100kV/μs (typical)
• System-level diagnostics with safety-relevant certifications:
  • 7000 VPK reinforced isolation per DIN V VDE V 0884-11 (VDE V 0884-11):2017-01
  • 5000V RMS isolation for 1 minute per UL1577
  • CAN/CSA No. 5A Component Acceptance Service Notice, IEC60950-1 and IEC 60065 end equipment standards
• Extended industrial temperature range: -40°C to +125°C

• Shunt resistor-based current sensing and isolated voltage measurement
• Industrial motor drives
• Photovoltaic inverters
• Uninterruptible isolated power supplies
• Power factor correction circuits