The circuit shown on EVAL-CN0372-PMDZ 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 a low 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 3V 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.
| Manufacturer | Analog Devices Inc. |
|---|---|
| Category | Energy Harvesting |
| Sub-Category | Solar to DC Regulators |
| Eval Board Part Number | EVAL-CN0372-PMDZ-ND |
| Eval Board Supplier | Analog Devices Inc. |
| Eval Board |
Normally In Stock
|
| Application / Target Market |
Energy Harvesting
|
| Voltage Out |
3.5 V
|
| Voltage In |
0.8 ~ 3.3 V
|
| Topology |
Step Up
|
| Voltage Out Range |
- Fixed
|
| Efficiency @ Conditions |
- Not Given
|
| Current Out |
- Not Given
|
| Current In |
200 µA
|
| Features |
ADC's for Sensor Reading
Current Limit (Adj. or Fixed) I²C Interface Open Circuit Protection Over Charge Protection Over Discharge Protection Power Good Output Shutdown, Enable, Standby |
| Design Author |
Analog Devices
|
| Component Count + Extras |
78 + 22
|
| Main I.C. Base Part |
AD7091R-5
ADA4805-1 ADP1607 ADP5090 |
| Date Created By Author | 2015-09 |
| Date Added To Library | 2018-04 |
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