ADT7518 is a temperature sensor, 4-channel ADC, and quad voltage output DAC with SPI/I2C compatible interface. It features four 8-bit DACs with buffered voltage output, guaranteed monotonicity over all codes. It also has a 10-bit temperature-to-digital converter and a 10-bit 4-channel ADC. The input range is 0V to 2.25V and the temperature range is -40°C to +120°C with a temperature sensor accuracy of ±0.5°C. The supply range is 2.7V to 5.5V and the DAC output range is 0V to 2VREF. It has a power-down current of 1µA. The ADT7518 has a SPI, I2C, QSPI, MICROWIRE, and DSP compatible 4-wire serial interface, as well as SMBus packet error checking (PEC) compatibility. It is suitable for portable battery-powered instruments.
The ADT7518 is a monolithic integrated circuit combining a 10-bit temperature-to-digital converter, a 10-bit 4-channel analog-to-digital converter (ADC), and a quad 8-bit digital-to-analog converter (DAC). It is housed in a 16-lead QSOP package and operates from a single 2.7 V to 5.5 V supply. The device features a 4-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, as well as a 2-wire SMBus/I2C interface.
| Supply Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Temperature Range | -40°C to +120°C |
| Temperature Sensor Accuracy | ±0.5°C (Typical) |
| ADC Resolution | 10 Bits |
| DAC Resolution | 8 Bits |
| ADC Input Voltage Range | 0 V to 2.25 V |
| Package Type | 16-lead QSOP |
The typical accuracy is ±0.5°C.
It is recommended that new designs use the ADT7519 rather than the ADT7518.