Product Overview
The LM75A/B/C is an industrial-standard digital temperature sensor and thermal monitor featuring an I2C serial interface. It offers high accuracy with a measurement error of less than 1C across its operating range of -40C to +125C, providing good temperature linearity. This sensor is ideal for general system thermal management, communication infrastructure, electronic test equipment, and environmental monitoring. It supports a single supply voltage from +2.7V to +5.5V (LM75A) and allows up to eight LM75A/B/C devices to be connected on a single bus. The device includes a programmable temperature limit and an ALERT pin, enabling its use as a thermostat or over-temperature alarm. Factory calibrated, it requires no additional user processing for temperature output. The LM75 is available in SOIC-8 and MSOP-8 packages.
Product Attributes
- Brand: LM75A/B/C
- Interface: I2C
- Package Types: SOIC-8, MSOP-8
Technical Specifications
| Specification | Details | Unit |
|---|---|---|
| Supply Voltage (LM75A) | 2.7 to 5.5 | V |
| Supply Voltage (LM75) | 1.4 to 5.5 | V |
| Operating Temperature Range | -40 to 125 | C |
| Temperature Accuracy | 1 | C |
| Resolution | 0.0625 | C |
| Bus Timeout Function | 22 (typical) | ms |
| Fast Mode Bus Frequency | 0.001 to 0.4 | MHz |
| High-Speed Mode Bus Frequency | 0.001 to 2.75 | MHz |
| ESD Protection (HBM) | 5000 | V |
| ESD Protection (MM) | 300 | V |
| Current Consumption (Average Idle) | 15 (typ), 37 (max) | A |
| Current Consumption (Shutdown Mode Idle) | 0.5 (max) | A |
| Conversion Time (One-Shot) | 26 (typical) | ms |
| Max Devices per Bus | 8 | Devices |
| Address Pins | A0, A1, A2 | - |
| Serial Data Pin | SDA | - |
| Serial Clock Pin | SCL | - |
| Alarm Pin | ALERT | - |
2411111138_Tudi-LM75CIMX-5-TUDI_C41417245.pdf
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