描述 Description

ATSENSE-301(H) are multi-channel analog front end devices which integrate seven simultaneously sampled Sigma-Delta A/D converters, a high-precision voltage reference with up to 10 ppm/oC temperature stability (H-versions), a programmable current signal amplification, a temperature sensor and an SPI interface. Designed to support energy measurement applications in combination with the Microchip'sATSAM4C device family that features a dedicated Cortex?-M4 processor and metrology library and a variety of sensors including Shunt, Current Transformer and Rogowski coils, the ATSENSE-301(H) achieve ANSI C12.20-2002 and IEC 62053-22 metering accuracy classes of up to 0.2% over 3000:1 current range.

特性 Features

? Analog Front End
? Poly-phase (ATSENSE-301(H)) Energy Metering Analog Front End for Microchip MCUs and Metrology Library
? Compliant with Class 0.2 Standards (ANSI C12.20-2002 and IEC 62053-22)
? Seven Sigma-Delta ADC Measurement Channels: Three Voltages, Four Currents, 102 dB Dynamic Range
? Current Channels with Pre-Gain (x1, x2, x4, x8) Supports Shunt, Current Transformer and Rogowski Coil
? Dedicated Current Channel for Anti-tamper Measurement
? Integrated SINC Decimation Filters. Output Data Rate: 16 kSps typical
? Integrated 2.8V LDO Regulator to Supply Analog Functions
? 3.0V to 3.6V Operation, Ultra Low Power: < 2.5 mW typical/Channel @ 3.3V
? Specified over two ambient operating temperature ranges : [-40°C ; +85°C] and [-40°C;+105°C]
? Precision Voltage Reference
? Standard 1.2V Output Voltage with Possible External Bypass
? Temperature Drift: 50 ppm typical (ATSENSE-301)
? Temperature Drift: 10 ppm typical (ATSENSE-301H)
? Factory-measured Temperature Drift and Die Temperature Sensor to perform Software Correction (ATSENSE-301H)
? Digital Interface
? 8.192 MHz Serial Peripheral Interface (SPI) Compatible Mode 1 (8-bit) for ADC Data and AFE Controls
? Interrupt Output Line Signaling ADC End-of-Conversion, Underrun and Overrun

簡介

ATSENSE301屬于集成電路（IC）的模擬前端（AFE）。由制造生產(chǎn)的ATSENSE301模擬前端（AFE）模擬前端 (AFE) 是一種用于信號調(diào)節(jié)的半導(dǎo)體器件，由模擬放大器、運(yùn)算放大器、濾波器和集成電路構(gòu)成。這種可配置功能塊能連接各種傳感器。分辨率范圍從 8 位至 42 位不等，通道數(shù)范圍為 1 至 256 個(gè)。