MCP3911 Two-Channel Analog Front End

Microchip's 2.7 V to 3.6 V dual-channel AFE with two synchronous sampling ΔΣ ADCs

Microchip Technology's MCP3911 Two-Channel Analog Front EndMicrochip's MCP3911 features two 24-bit, delta-sigma ADCs that operate at 3 V with industry-leading accuracy of 94.5 dB SINAD and -106.5 dB THD. This provides better energy-meter and power-monitoring performance by accurately measuring from start-up to maximum current, and enables faster calibration during production. Four different power modes offer the flexibility of enabling either extremely low-power designs, as low as 0.8 mA per channel, or designs with higher-speed signals and harmonic content. The extended temperature range allows operation from -40°C to +125°C.

Features Applications
  • Two synchronous sampling 16/24-bit resolution Delta-Sigma A/D converters
  • 94.5 dB SINAD, -106.5 dBc Total Harmonic Distortion (THD) (up to 35th harmonic), 111 dB SFDR for each channel
  • 2.7 V to 3.6 V AVDD, DVDD
  • Energy metering and power measurement
  • Automotive
  • Portable instrumentation
  • Medical and power monitoring
  • Audio/voice recognition

Two Channel Analog Front End

ImageManufacturer Part NumberDescriptionAvailable Quantity
MCP3911A0-E/SS datasheet linkIC AFE 24BIT 125KSPS 2CH 20-SSOPMCP3911A0-E/SSIC AFE 24BIT 125KSPS 2CH 20-SSOP1870 - Immediate
MCP3911A0-E/SS product page link
MCP3911A0-E/ML datasheet linkIC AFE 24BIT 125KSPS 2CH 20-QFNMCP3911A0-E/MLIC AFE 24BIT 125KSPS 2CH 20-QFN1136 - Immediate
MCP3911A0-E/ML product page link
Published: 2012-06-29