National LM74A Data Sheet
Summary
This high-precision temperature sensor features a 12-bit resolution and supports both SPI and MICROWIRE interfaces for versatile integration. The manual provides comprehensive details on system thermal management applications, covering low power shutdown modes, accuracy specifications, handling wide temperature ranges (-55°C to +150°C), and physical dimensions of the die form package. It is ideal for engineers designing robust electronic equipment like hard disk drives, printers, and general office electronics requiring reliable, precise temperature monitoring.
Manual Details
| Brand | National |
|---|---|
| Pages | 12 |
| File Size | 190.12 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
What interfaces are available for the LM74A temperature sensor?
The device features both an SPI and a MICROWIRE compatible interface.
What is the required supply voltage range to operate the sensor?
It requires a supply voltage between 4.5V and 5.5V.
How can I minimize power consumption when the system is idle?
Use the shutdown mode, which reduces power consumption to less than 10 μA.
What are the operational temperature limits for this sensor?
The LM74A operates over a wide temperature range of -55˚C to +150˚C.