Microchip Technology, Inc. Analog Front End (AFE) MCP3901A0T-I/SS

The MCP3901A0T-I/SS is a dual-channel Analog Front End (AFE) featuring two synchronous sampling Delta-Sigma Analog-to-Digital Converters (ADCs) with 16/24-bit resolution. It offers high performance with specifications including 91 dB Signal-to-Noise and Distortion Ratio (SINAD), -104 dBc Total Harmonic Distortion (THD), and 109 dB Spurious-free Dynamic Range (SFDR) for each channel. The device supports a programmable data rate of up to 64 ksps and operates in a low-power shutdown mode consuming less than 2 ¬µA. The MCP3901A0T-I/SS includes a high-gain Programmable Gain Amplifier (PGA) on each channel, capable of up to 32 V/V gain, and features a low drift internal voltage reference with a temperature coefficient of 12 ppm/¬8C. It also provides phase delay compensation between channels with 1 ¬µs resolution and has a high-speed, addressable 20 MHz SPI interface. The device can operate with independent analog and digital power supplies ranging from 4.5V to 5.5V for AVDD and 2.7V to 5.5V for DVDD. This AFE is suitable for applications in energy metering, automotive systems, portable instrumentation, and medical power monitoring. It is available in a compact 20-lead SSOP package and is rated for industrial temperature ranges from -40¬8C to +85¬8C, with an extended option up to +125¬8C.