Overview
The LM75AIMM/NOPB is a digital temperature sensor manufactured by Texas Instruments. It is an industry-standard device that integrates a sigma-delta analog-to-digital converter (ADC) and an I2C interface. This sensor provides 9-bit digital temperature readings with high accuracy, making it suitable for various thermal management applications. The LM75A operates with a single supply voltage ranging from 2.7 V to 5.5 V and communicates over a 2-wire interface up to 400 kHz. It is available in VSSOP-8 and SOIC-8 packages, offering flexibility in design and implementation.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V |
| Supply Current (Typical) | 280 µA |
| Supply Current (Shutdown) | 4 µA |
| Temperature Accuracy (25°C to 100°C) | ±2°C (Max) |
| Temperature Accuracy (55°C to 125°C) | ±3°C (Max) |
| Interface | I2C, SMBus, 2-Wire |
| Temperature Resolution | 9 bits |
| Operating Temperature Range | -55°C to 125°C |
| Package Type | VSSOP-8, SOIC-8 |
Key Features
- No external components required for operation.
- Shutdown mode to minimize power consumption.
- Up to eight LM75A devices can be connected to a single bus.
- Power-up defaults permit stand-alone operation as a thermostat.
- Dedicated overtemperature output (O.S.) with programmable limit and hysteresis.
- Programmable fault queue to prevent false tripping of O.S.
Applications
The LM75AIMM/NOPB is ideal for various applications where thermal management is critical, including:
- Base stations
- Electronic test equipment
- Office electronics
- Personal computers
- Any system requiring precise temperature monitoring and control.
Q & A
- What is the operating temperature range of the LM75AIMM/NOPB?
The operating temperature range is -55°C to 125°C. - What is the supply voltage range for the LM75AIMM/NOPB?
The supply voltage range is 2.7 V to 5.5 V. - What is the typical supply current of the LM75AIMM/NOPB?
The typical supply current is 280 µA. - How many devices can be connected to a single bus?
Up to eight LM75A devices can be connected to a single bus. - What is the temperature resolution of the LM75AIMM/NOPB?
The temperature resolution is 9 bits. - Does the LM75AIMM/NOPB require external components for operation?
No, the LM75AIMM/NOPB does not require external components for operation. - What interface does the LM75AIMM/NOPB use for communication?
The LM75AIMM/NOPB uses an I2C, SMBus, or 2-wire interface for communication. - What is the purpose of the overtemperature output (O.S.)?
The overtemperature output (O.S.) is used to indicate when the temperature exceeds a programmable limit, with adjustable hysteresis and fault tolerance. - Is the LM75AIMM/NOPB RoHS compliant?
Yes, the LM75AIMM/NOPB is RoHS compliant. - What are the available package types for the LM75AIMM/NOPB?
The available package types are VSSOP-8 and SOIC-8.
