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ATM90E36A-AU-R

3-phase energy metering IC, 0.1% accuracy, 24-bit ADC, 31st harmonic analysis, SPI interface in TQFP-48

8870

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جزء الشركة المصنعة ： جزء الشركة المصنعة

ATM90E36A-AU-R

الحزمة ： الحزمة

TQFP-48 (7.00 x 7.00 x 1.00 mm)

الوصف

نظرة عامة على المنتج

The ATM90E36A-AU-R from Microchip (Atmel) is a high-precision three-phase energy metering IC in a TQFP-48 (7x7mm) package. It features 24-bit sigma-delta ADCs with 0.1% active energy accuracy, supports 3-phase + neutral measurement, and includes harmonic analysis up to the 31st order.

المواصفات الرئيسية

Measurement Channels	3-phase + neutral (7 ADC channels)
Active Energy Accuracy	0.1 class
Reactive Energy Accuracy	0.5 class
ADC Resolution	24-bit
Sampling Rate	8kHz per channel
الواجهة	SPI (up to 3.5MHz)
جهد الإمداد	3.3V (Single Supply)
Harmonic Analysis	Up to 31st harmonic
الحزمة	TQFP-48 (7.00 x 7.00mm)
درجة حرارة التشغيل	-40°C ~ +85°C

الميزات

Ultra-high accuracy active energy measurement (0.1 class)
Simultaneous 3-phase + neutral voltage and current sampling
24-bit sigma-delta ADCs for wide dynamic range
Built-in DSP for real-time harmonic analysis up to 31st order
Active, reactive, and apparent power measurement
Voltage and current RMS measurement
Programmable gain amplifiers for current sensor interfaces
SPI interface for host MCU communication

التطبيقات

Three-phase smart electricity meters
Industrial power quality analyzers
Energy management and sub-metering systems
Demand response controllers
Distribution grid monitoring equipment

مقدمة المنتج:ATM90E36A-AU-R مقدمة المنتج

The ATM90E36A-AU-R from Microchip Technology (formerly Atmel) is a high-precision polyphase energy measurement IC designed for smart metering and power quality monitoring. It integrates seven 24-bit sigma-delta ADC channels that simultaneously sample three-phase voltages and currents plus a neutral channel. The on-chip DSP performs real-time computation of active, reactive, and apparent power and energy with class 0.1 accuracy. The device includes advanced features such as harmonic analysis up to the 31st order. A programmable gain amplifier stage accommodates various current sensor types including shunt resistors, current transformers, and Rogowski coils. The -R suffix indicates tape and reel packaging.

مبدأ العمل:ATM90E36A-AU-R مبدأ العمل

The ATM90E36A operates through three main processing stages: (1) The analog front-end consists of seven 24-bit sigma-delta ADCs with programmable gain amplifiers. Three voltage channels and four current channels are sampled simultaneously at 8kHz per channel. (2) The digital signal processing engine computes RMS values of voltage and current, active power, reactive power, apparent power, and power factor for each phase. Energy accumulation registers integrate power over time. The harmonic analysis engine performs FFT-based decomposition up to the 31st harmonic order. (3) Calibration and compensation circuits correct for gain errors, phase errors between channels, and DC offset. All measurement results are accessible through the SPI register interface.

وصف الدبوس:ATM90E36A-AU-R تعريف الدبوس ووظائفه

دبوس	الاسم	الوظيفة
1	IAP	Phase A current positive input
2	IAN	Phase A current negative input
3-4	IBP/IBN	Phase B current differential input
5-6	ICP/ICN	Phase C current differential input
7-8	INP/INN	Neutral current differential input
9-10	VAP/VAN	Phase A voltage differential input
11-12	VBP/VBN	Phase B voltage differential input
13-14	VCP/VCN	Phase C voltage differential input
15	AVDDD	Analog supply (3.3V)
16	AGND	Analog ground
17	دي في دي دي دي	Digital supply (3.3V)
19	XSCK	SPI clock input
20	MOSI	SPI data input
21	MISO	SPI data output
22	CS	SPI chip select

Application Scenarios:In which products and applications isATM90E36A-AU-R مستعمل

Three-Phase Smart Meter: Class 0.1 active energy accuracy meets IEC 62053-22 requirements; 31st harmonic analysis enables power quality reporting
Industrial Power Quality Analyzer: Simultaneous 3-phase + neutral sampling captures unbalanced loads and harmonic distortion
Data Center PDU Metering: Per-outlet energy measurement with harmonic analysis identifies inefficient IT equipment
Solar Inverter Monitoring: Measures grid-tied inverter output power quality including harmonic content for regulatory compliance

Alternative Models:What chips are recommended as replacements for ATM90E36A-AU-R

الطراز	الشركة المصنعة	الفرق الرئيسي
ATM90E26ASU	الرقاقة الدقيقة	Single-phase version, 0.1 class, TSSOP-28
ADE7878A	ADI	3-phase, 0.1 class, 24-bit, I2C/SPI
ADE7758	ADI	3-phase, 0.1 class, 20-bit ADC
MCP3919	الرقاقة الدقيقة	6-channel, 24-bit ADC, no DSP
MAX78615+LMU	ADI	Single-phase, with ARM core