LM77CIMX-3

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Sensor Type:	Digital, Local
Sensing Temperature - Local:	-55°C ~ 125°C
Sensing Temperature - Remote:	--
Output Type:	I²C
Voltage - Supply:	3 V ~ 5.5 V
Resolution:	9 b
Features:	Output Switch, Programmable Limit, Shutdown Mode
Accuracy - Highest (Lowest):	±1.5°C (±3°C)
Test Condition:	-10°C ~ 65°C (-55°C ~ 125°C)
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC

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Temperature Sensors - Analog and Digital Output

The LM77CIMX-3, also known as a CIMX, is a digital temperature sensor with an analog output, designed by Exar Corporation. This family of IC temperature sensors provides a reliable and cost-effective way to accurately measure temperatures. They can be used in a variety of applications, such as in industrial and commercial buildings, in automotive and aerospace applications, and in medical and safety equipment.The LM77CIMX-3 is a low cost, low power three-terminal digital temperature sensor with an accuracy of ±1°C. It is equipped with an analog voltage output that can be used to build a simple temperature measurement circuit. The output of the LM77CIMX-3 digital temperature sensor is a direct conversion of the temperature that is being monitored. This allows it to accurately measure both low and high temperatures. The voltage output can be reduced by using a voltage divider circuit, or by connecting a digital-to-analog converter (DAC) to the device.The working principle of the LM77CIMX-3 is based on an internal band gap reference with a bipolar junction transistor amplifier. The amplifier output is connected to a voltage divider circuit which is used to generate the analog voltage output. A thermo-electric element is used to sense the temperature. The LM77CIMX-3 also has an on-chip analog-to-digital converter (ADC). The ADC is used to convert the analog voltage output from the voltage divider circuit into a digital value. The digital signal is then sent to the output pins.The LM77CIMX-3 can be used in an array of applications including temperature measurement, monitoring, and control. The device’s low power operation and wide power supply range make it suitable for use in a wide variety of applications including automotive, industrial, consumer, and medical electronics. Additionally, the LM77CIMX-3 can operate in a wide range of ambient temperatures ranging from -40°C to +122°C.In addition, the LM77CIMX-3 provides many features such as power on reset, power on delay, and hysteresis control. Power on reset ensures that the device powers up correctly and the power on delay allows for a delay before the device starts operating. Hysteresis control helps to reduce fluctuations in the output voltage by allowing the device to respond to a temperature change after a certain hysteresis level has been exceeded.The LM77CIMX-3 is available in packages such as a SOIC-8 and a 3mm x 3mm V12-FQFN. It can also be used with other devices such as an A/D converter, multiplexers and I/O ports. This flexibility ensures that the device can be used in a wide variety of temperature sensing applications.Overall, the LM77CIMX-3 is a reliable, efficient and cost-effective digital temperature sensor with an analog output. With its wide range of features, the LM77CIMX-3 is an ideal choice for use in temperature sensing and control applications.

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