The circuit CN0372 is an ultralow power, multichannel data acquisition system that can be powered by a photovoltaic (PV) cell or thermoelectric generator (TEG). The circuit uses the industry’s lowest power, multichannel, 12-bit successive approximation analog-to-digital converter (SAR ADC), the AD7091R-5, along with an efficient energy harvesting circuit based on the ADP5090 boost regulator. The ADC has a typical power consumption of 100 μW on a single 3 V supply when sampling at 22 kSPS. Typical signal-to-noise ratio (SNR) is 68 dB for a 1 kHz input signal.
circuit board uses the interposer board, and the system demonstration platform (SDP) board. The PMOD interposer board and the SDP controller board have 120-pin mating connectors. The interposer board and the board have 12-pin PMOD interface Type 2A and 8-pin I2C interface matching connectors, allowing quick setup and evaluation of the circuit performance.
- Renewable Energy Generation
- Clinical Monitoring
- Health, Wellness and Fitness
- Instrumentation and Measurement
- Electronic Test & Measurement
- Ultralow Power Data Acquisition System
- 4-Channels, 12-Bit Resolution
- Energy Harvesting Power Circuit