Features and Benefits
- Temperature range: −40°C to +85°C
- Accuracy of ±2°C
- SMBus™/I2C® Compatible Serial Interface
- 3 μA power-down current
- Temperature Conversion Time - 29 µs typ
- Space Saving 6-pin SOT-23
- Pin-Selectable Addressing via AS
- Over Temperature Indicator
- SMBus alert function
- 4 versions allow 8 I2C addresses
The AD7414/AD7415 are complete temperature monitoring systems in 6-lead and 5-lead SOT-23 packages. They contain a band gap temperature sensor and a 10-bit ADC to monitor and digitize the temperature reading to a resolution of 0.25°C.
The AD7414/AD7415 provide a 2-wire serial interface that is compatible with SMBus and I2C interfaces. The parts come in four versions: the AD7414/AD7415-0, AD7414/AD7415-1, AD7414-2, and AD7414-3. The AD7414/AD7415-0 and AD7414/AD7415-1 versions provide a choice of three different SMBus addresses for each version. All four AD7414 versions give the possibility of eight different I2C addresses while the two AD7415 versions allow up to six I2C addresses to be used.
The AD7414/AD7415’s 2.7 V supply voltage, low supply current, serial interface, and small package size make them ideal for a variety of applications, including personal computers, office equipment, cellular phones, and domestic appliances.
In the AD7414, on-chip registers can be programmed with high and low temperature limits, and an open-drain overtemperature indicator output (ALERT) becomes active when a programmed limit is exceeded. A configuration register allows programming of the state of the ALERT output (active high or active low). This output can be used as an interrupt or as an SMBus alert.
- Hard disk drives
- Personal computers
- Electronic test equipment
- Office equipment
- Domestic appliances
- Process control
- Cellular phones
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The AD7414/AD7415 evaluation board allows the AD7414/AD7415 digital temperature sensor to be quickly and easily evaluated using a PC. Using the evaluation board and its accompanying software, the AD7414/AD7415 evaluation board can be interfaced to a PC through its USB connection. The drivers will work on 32-bit Windows 7 machines.
Please note: This Evaluation software does not run on Windows 8 or Windows 10 (USB driver is non-compliant with OS >Windows 7).
Documentation & Resources
AN-686: Implementing an I2C® Reset (Rev. 0)12/16/200344 kB
Support & Discussions
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.