Терраэлектроника
Применения > > Ultralow Power, General-Purpose, Multichannel Data Acquisition System with Energy Harvesting Circuit and Alert Function

Ultralow Power, General-Purpose, Multichannel Data Acquisition System with Energy Harvesting Circuit and Alert Function (CN0372)

The circuit shown in Figure 1 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.


The low power consumption and small form factor make this combination of devices ideally suited for portable low power applications, particularly for wearable and self-powered devices.


Figure 1. Low Power Data Acquisition System with Energy Harvesting Circuit (Simplified Schematic: All Connections and Decoupling Not Shown)

Возможности

  • Ultralow Power Data Acquisition System
  • 4-Channels, 12-Bit Resolution
  • Energy Harvesting Power Circuit

Файлы


Заметили ошибку в работе сайта?
Скажите нам об этом