This ASIC is part of a battery powered wearable device. It has an on-chip ISO15693 compliant NFC to power the device externally and communicate with a standard NFC reader. The sensor readout contains an ultra-low-power front-end. A custom digital sequencer is implemented to optimise device power consumption.
Features
- Ultra low-power sensor read-out with integrated NFC front-end
- Battery powered
- High-accuracy and ultra low-power measurement chain
- Ultra low-power storage mode
- Near-Field Communication (NFC) front-end
- Direct powering from NFC field (13.56 MHz), no external power needed
- 2-way communication: wake-up and measurement data transfer
- NFC interface compliant with ISO15693
- On-chip digital macro including:
- SPI interface
- NFC protocol
- Measurement sequencer
- Digital signal processing
- Built-In Self Test (BIST)
- 0.18um 1.8/3.3V process