Overview: NCT7290 16 Channel ADC, 12 Channel DAC, Internal Temp Sensor with I2C & SPI Interface
The NCT7290 is a serially programmable voltage and temperature monitor. It can monitor its on chip temperature via its local sensor, a remotely connected diode and 16 analog inputs. Two 12 bit DACs allow for voltage control on 12 pins. Eight GPIO pins allow digital control and monitoring. An ALERT output is also available to signal out-of-limit conditions.
munication with the NCT7290 is acplished via an I2C interface which is patible with industry standard protocols or a 4 wire SPI interface. Both interfaces are available on this device. Through these interfaces the NCT7290s internal registers may be accessed. These registers allow the user to read the current temperature and input voltages, change the configuration settings, adjust each channels limits and set set the output DAC voltages on each of the 12 channels available.
The NCT7290 is available in a 56-lead QFN (8 × 8 × 0.5 mm) package and operates over a supply range of 5.0 V ±10% (digital supply range of 3 V to 3.6 V) and temperature range of –55 to +125°C. This makes the NCT7290 ideal for a wide variety of applications ranging from cellular base stations to servers and industrial controls.
