The D7211 is a highly integrated power/energy monitoring Analog Front End (AFE) IC that measures electricity-related data for power usage measurement applications. It has
built-in 8-channel ADC and a programmable DSP which can adapt to different applications such as metering, power protection and Master/Slave.

The D7211 has a built-in MTP that stores the chip configuration, DSP code andcalibration data. It provides SPI slave interface and can be used for calibration and programming data or DSP code.MCU can be accessed through SPI interface.

The D7211 can diagnose the electricity-related data to identify overloading, short circuit, leakage current and arcing condition for further power protection features. It also provides a flexible architecture, low system BOM cost and programmable solution, to help manufacturers minimize development efforts and design a versatile and flexible product.

Features

● 2-Channel 24-bit sigma-delta ADC
● Internal 3.3V/5V to 1.8V cap-less LDO
● Internal 1.2V cap-less VREF (w/0.1%
accuracy/full temp. range after trim)
● Built-in 1X ~ 32X PGA (w/0.1% accuracy/full
temp. range after calibration)
● Internal 16MHz RC OSC (w/5% accuracy/full
temp. range after trim)
● Internal VDT/POR and temperature sensor
● Built-in FIR filter for each individual channel
● Channel phase alignment
● Programmable 48-bit DSP engine with
- 512 × 32 program space
- 128 × 48 data space
- 64 × 48 output buffer
- Built-in fix point to float-point converter
● 8KB OTP with 2 banks DSP code, DSP CFG
and SYS CFG
● Supports I2C/SPI/UART (UART supports auto
baud-rate mode)
● Supports 38KHz IR carrier removed

● Supports up to 9 GPIOs which can be directly controlled by DSP
● 5V tolerance I/O
● Small package size: 4×4 QFN24

Typical Applications

● Smart Plug/Strip/PDU
● Protection Device/Home Appliance
● Power Monitor, Hardware Monitor

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