LM74
FEATURES
- 2 0.0625°C Temperature Resolution
- Shutdown Mode Conserves Power Between
Temperature Reading
- SPI and MICROWIRE Bus Interface
- 5-Bump DSBGA Package Saves Space
APPLICATIONS
- System Thermal Management
- Personal puters
- Disk Drives
- Office Electronics
- Electronic Test Equipment
KEY SPECIFICATIONS
- Supply Voltage 3.0V or 2.65V to 5.5V
- Supply Current
- Operating
- 265μA (typ)
- 520μA (max)
- Shutdown
- 3μA (typ)
- Temperature Accuracy
- - 10°C to 65°C, ±1.25°C(max)
- - 25°C to 110°C, ±2.1°C(max)
- - 55°C to 125°C, ±3°C(max)
DESCRIPTION
The LM74 is a temperature sensor, Delta-Sigma analog-to-digital converter with an SPI and MICROWIRE patible interface. The host can query the LM74 at any time to read temperature. A shutdown mode decreases power consumption to less than 10 μA. This mode is useful in systems where low average power consumption is critical.
The LM74 has 12-bit plus sign temperature resolution (0.0625°C per LSB) while operating over a temperature range of
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