Key facts
- Brand
- Analog Devices
- Model
- AD7814
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-05
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Analog Devices AD7814 Datasheet
The AD7814 integrates a band‑gap temperature sensor, a 10‑bit ADC and a serial interface in a compact SOT‑23 or 8‑lead MSOP package. It operates from 2.7 V to 5.5 V and provides temperature readings with 0.25 °C resolution over a –55 °C to +125 °C range.
The device uses an SPI‑compatible, QSPI™ or MICROWIRE™ protocol and includes a shutdown mode that reduces supply current to the sub‑µA level. Typical applications include hard‑disk drives, personal computers, office equipment, domestic appliances and process‑control systems.
Analog Devices AD7814 specifications
| Operating Temperature Range | -55 °C to +125 °C |
|---|---|
| Temperature Accuracy | ±2 °C |
| Resolution | 10 bits (0.25 °C) |
| Supply Voltage | 2.7 V to 5.5 V |
| Supply Current (Normal Mode) | 250 µA to 400 µA |
| Shutdown Current (Vpp = 5 V) | 1.23 µA |
| Input High Voltage | 2.4 V |
| Input Low Voltage | 0.8 V |
| Output High Voltage | Vpp − 0.3 V |
| Output Low Voltage | 0.4 V |
Source: Analog Devices AD7814 Datasheet
All Analog Devices AD7814 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What temperature range can the AD7814 measure?
It can measure temperatures from –55 °C up to +125 °C.
What is the accuracy of the AD7814 temperature readings?
The sensor provides an accuracy of ±2 °C over the specified range.