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'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. MCP3911 Datasheet

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 - 3.6 V AV_DD, DV_DD	Energy metering and power measurement Automotive Portable instrumentation Medical and power monitoring Audio/voice recognition

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Microchip Part Number	Digi-Key Part Number	Package
MCP3911A0-E/SS	MCP3911A0-E/SS-ND	20-Lead SSOP
MCP3911A0-E/ML	MCP3911A0-E/ML-ND	20-Lead QFN

Evaluation Board

Microchip Part Number	Digi-Key Part Number	Description
ADM00398	ADM00398-ND	Evaluation Board for 16-bit MCP3911