STPM33TR

The STPM33TR is a high accuracy Analog Front End (AFE) for DC and AC energy measurement, offering high accuracy down to extremely low current typical of home appliances in stand-by. A full set of on-board features provides high system integration and enable on-chip power quality monitoring. The device has up to 4 independent 24 bits 2nd order ∑Δ ADC with PGA. The device has integrated DSP for "turn-key" energy parameters calculations. Built-in twin independently temperature compensated voltage references and double LED output programmable for active and reactive energy pulses generation.

• Applicable to class 0.2m
• <0.1% Active power accuracy over a dynamic range of 5000:1
• 4kHz Bandwidth
• Very fast single point calibration
• AC and DC measurement
• Multiple sensors support - Shunt, current transformer, Rogowsky coils
• Multiple host interfaces 5 and 3 wires SPI, UART
• I,V bit stream available to host controller for customer own processing
• Case removal and Neutral Anti-tamper detection
• Exceeds 50-60Hz EN 50470-x, IEC 62053-2x, ANSI12.2x