The MCP3903 AFE combines a typical signal-to-noise and distortion (SINAD) of 91 dB and total harmonic distortion (THD) of -104 dB to give you industry-leading accuracy for smart metering and power monitoring applications. By integrating six 16-/24-bit delta-sigma analog-to-digital converters (ADCs), the MCP3903 lets you sample six inputs simultaneously to reduce component count and cost. The MCP3903 also packs programmable gain amplifiers (PGAs), a low-drift voltage reference and phase-delay compensation into a 28-pin SSOP to give you the flexibility to streamline and add more functions your design

Pair the MCP3903 with a PIC microcontroller, for a complete, high-accuracy solution for utility meters, power-monitoring equipment and instrumentation.

Key features include:

• Six simultaneously sampled 24-bit delta-sigma A/D converters
• 91 dB SINAD, -104 dBc THD, 102 dB SFDR
• Programmable data rate up to 64 ksps
• Internal voltage reference with low drift of 5 ppm/°C
• Internal PGAs on each channel with gain of 32 V/V
• Extended Temperature Range: -40°C to +125°C


• Energy metering
• Power monitoring
• Servers
• Power distribution units
• Data acquisition systems