AD7816/AD7817/AD7818 are single- and 4-channel 10-bit ADCs with a 9 μs conversion time. AD7816 is a temperature measurement only device with a resolution of 0.25°C. They feature a wide operating supply range and low power operation.
The document describes three related devices: the AD7816 (temperature monitoring only), the AD7817 (single-ended analog input channel), and the AD7818 (four single-ended analog input channels). All parts feature a 9 µs conversion time, an on-chip temperature sensor with 0.25°C resolution, and operate from a wide supply range of 2.7 V to 5.5 V.
| Resolution | 10 Bits |
|---|---|
| Conversion Time (Channels) | 9 µs max |
| Operating Supply Range | 2.7 V to 5.5 V |
| Temperature Resolution | 0.25°C/LSB |
| On-Chip Reference Voltage | 2.5 V |
The interface is compatible with Intel 8051, Motorola SPI, and National Semiconductors MICROWIRE protocols.
The devices operate from a single power supply ranging from 2.7 V to 5.5 V.
The maximum conversion time for the temperature sensor is 27 µs.