AS8002-AQFP

Overview

The AS8002 is a solar photovoltaic inverter measurement IC designed for accurate monitoring of generated energy. It features a 12-bit ADC with a throughput rate of 100 kSPS and three multiplexed inputs, including one secondary channel. The device includes programmable gain amplifiers (PGA) with gains ranging from 2 to 64 V/V for current channels and 2 to 8 V/V for voltage channels. An on-chip temperature sensor provides data for compensation, while an independent over-current interrupt detects high grid currents with a reaction time of 2 µs. The internal oscillator operates at 10 MHz, eliminating the need for external crystals. Supply voltages for analog and digital sections range from 3.0 V to 3.6 V.

Feature Summary

• High-accuracy 12-bit ADC with low noise programmable gain amplifiers for flexible sensor accommodation
• Independent programmable over-current interrupt for fast processor response without ADC conversion delay
• On-chip temperature sensor and voltage reference with low temperature coefficient for stability
• SPI compatible interface with internal registers for offset and gain compensation

Applications

• PV inverter grid monitoring
• Wind inverter grid monitoring
• Uninterruptible power supplies
• Power conditioners

Procurement Notes

Verify the specific package variant and ordering suffix against the manufacturer's latest documentation before procurement. Ensure that the supply voltage requirements align with the system design, as the device operates within a 3.0 V to 3.6 V range. Confirm compatibility with the host controller's SPI interface timing specifications to guarantee reliable data transfer during operation.

Selection Notes

Select the AS8002 when precise DC and AC measurements are required using low-cost shunt resistors or resistor dividers. The device is suitable for applications needing fast over-current detection and temperature compensation. Consider the available PGA gain settings to match the input signal levels of the chosen sensors. Ensure the system can accommodate the 100 kSPS sampling rate and SPI communication protocol.

Part Context

The AS8002 is part of the measurement IC portfolio by ams OSRAM USA INC., formerly austriamicrosystems AG. It is specifically engineered for renewable energy systems, focusing on accurate energy monitoring in inverters. The component integrates analog front-end processing with digital output capabilities, streamlining the design of grid-connected power conversion systems.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.