Overview
The LM75AD,118 is a digital temperature sensor and thermal watchdog produced by NXP USA Inc. It utilizes an on-chip bandgap temperature sensor and Sigma-delta A-to-D conversion technique to convert temperature into digital signals. This device is part of the LM75A series and is known for its high precision and versatility in various applications.
Key Specifications
| Attribute | Specification |
|---|---|
| Output Type | Digital |
| Supply Voltage | 2.8V to 5.5V |
| Operating Temperature Range | -55°C to +125°C (-67°F to +257°F) |
| Output Current-Max | 10mA |
| Interface Type | I²C |
| Resolution | 11-bit (0.125°C resolution) |
| Storage Temperature Range | -65°C to +150°C |
| Moisture Sensitivity Level | 1 |
| Package Style | SOIC-8 |
| Mounting Method | Surface Mount |
Key Features
- Pin-for-pin replacement for industry standard LM75 with improved temperature resolution of 0.125°C and specification over a power supply range from 2.8 V to 5.5 V.
- Small 8-pin package types: SO8 and TSSOP8.
- I²C-bus interface with up to 8 devices on the same bus.
- Temperature accuracy of ±2°C from -25°C to +100°C and ±3°C from -55°C to +125°C.
- Programmable temperature threshold and hysteresis set points.
- Supply current of 3.5 μA in shutdown mode for power conservation.
- Stand-alone operation as thermostat at power-up.
- ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per ESD22-C101.
- Latch-up testing exceeds 100 mA per JEDEC Standard JESD78.
Applications
- System thermal management.
- Personal computers.
- Electronics equipment.
- Industrial controllers.
- Industrial automation: real-time monitoring of temperature changes on the production line.
- Automotive industry: Measurement and control of temperatures such as engine temperature, air conditioning temperature, etc.
- Medical equipment: precise measurement of body temperature, cardiac electricity, and other physiological parameters.
- Heavy industry: Measurement of surface temperature of various objects such as steel casting, furnace temperature, machine parts, glass, and room temperature.
Q & A
- What is the LM75AD,118?
The LM75AD,118 is a digital temperature sensor and thermal watchdog produced by NXP USA Inc., using an on-chip bandgap temperature sensor and Sigma-delta A-to-D conversion technique.
- What is the operating temperature range of the LM75AD,118?
The operating temperature range is from -55°C to +125°C (-67°F to +257°F).
- What is the resolution of the LM75AD,118?
The resolution is 11-bit, offering a temperature resolution of 0.125°C.
- What interface does the LM75AD,118 use?
The device uses an I²C-bus interface.
- What is the power supply range for the LM75AD,118?
The power supply range is from 2.8 V to 5.5 V.
- What is the package style of the LM75AD,118?
The package style is SOIC-8.
- What are the key applications of the LM75AD,118?
Key applications include system thermal management, personal computers, electronics equipment, industrial controllers, and various industrial and automotive uses.
- Does the LM75AD,118 have programmable temperature thresholds?
Yes, it has programmable temperature threshold and hysteresis set points.
- What is the ESD protection level of the LM75AD,118?
The ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per ESD22-C101.
- How much current does the LM75AD,118 consume in shutdown mode?
The supply current in shutdown mode is 3.5 μA.
