LM74 - 12-Bit Plus Sign Temperature Sensor

National Semiconductor (now Texas Instruments)

General Description

The LM74 is a temperature sensor, Delta-Sigma analog-todigital converter with an SPI and MICROWIRE compatible interface.

The host can query the LM74 at any time to read temperature.

A shutdown mode decreases power consumption to less than 10 μA.

Key Features

0.0625°C temperature resolution.
Shutdown mode conserves power between temperature reading.
SPI and.

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LM74 12-bit plus sign temperature sensor by National Semiconductor (now Texas Instruments) - Datasheet Preview

Datasheet Details

Part number	LM74
Manufacturer	National Semiconductor (now Texas Instruments)
File Size	351.83 KB
Description	12-Bit Plus Sign Temperature Sensor
Datasheet	LM74 Datasheet

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Full PDF Text Transcription (Reference)

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LM74 SPI/MICROWIRE 12-Bit Plus Sign Temperature Sensor LM74 March 1, 2011 SPI/MICROWIRE™ 12-Bit Plus Sign Temperature Sensor General Description The LM74 is a temperature sensor, Delta-Sigma analog-todigital converter with an SPI and MICROWIRE compatible 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 −55°C to +150°C. The LM74's 3.0V to 5.5V supply voltage range, low supply current and simple SPI interface make it ideal for a wide range of applications.