Specifications
| Type | Description |
|---|---|
| Part Number | LM35 |
| Manufacturer | Texas Instruments |
| Product Type | Precision centigrade temperature sensor |
| Category | Sensor |
| Package Case | TO-CAN 3-pin 4.699 mm x 4.699 mm; TO-92 3-pin 4.30 mm x 4.30 mm; SOIC 8-pin 4.90 mm x 3.91 mm; TO-220 3-pin 14.986 mm x 10.16 mm |
| Temperature Scale Factor | +10 mV/°C; output voltage linearly proportional to Celsius temperature |
| Ensured Accuracy | 0.5 °C at TA=25°C |
| Rated Temperature Range | -55°C to 150°C for LM35 device |
| Operating Supply Voltage | 4 V to 30 V for device operation |
| Current Drain | <60 µA device supply current |
| Self Heating | 0.08 °C in still air |
| Nonlinearity | ±0.25 °C typical |
| Output Impedance | 0.1 Ω at 1 mA load |
| Output Voltage at 150°C | 1500 mV in full-range centigrade temperature sensor circuit |
| Output Voltage at 25°C | 250 mV in full-range centigrade temperature sensor circuit |
| Output Voltage at -55°C | -550 mV in full-range centigrade temperature sensor circuit |
| Supply Voltage Absolute Maximum | -0.2 V to 35 V over operating free-air temperature range |
| Output Voltage Absolute Maximum | -1 V to 6 V over operating free-air temperature range |
| Output Current Absolute Maximum | 10 mA over operating free-air temperature range |
| Maximum Junction Temperature | 150 °C Tj max |
| Storage Temperature, TO-CAN and TO-92 | -60°C to 150°C |
| Storage Temperature, TO-220 and SOIC | -65°C to 150°C |
| ESD Rating | ±2500 V human-body model, ANSI/ESDA/JEDEC JS-001 |
| Specified Operating Temperature, LM35 and LM35A | -55°C to 150°C |
| Specified Operating Temperature, LM35C and LM35CA | -40°C to 110°C |
| Specified Operating Temperature, LM35D | 0°C to 100°C |
| Recommended Supply Voltage | 4 V to 30 V for +VS recommended operating conditions |
| Junction-to-Ambient Thermal Resistance, NDV | 400 °C/W for NDV 3-pin package |
| Junction-to-Ambient Thermal Resistance, LP | 180 °C/W for LP 3-pin package |
| Junction-to-Ambient Thermal Resistance, D | 220 °C/W for D 8-pin package |
| Junction-to-Ambient Thermal Resistance, NEB | 90 °C/W for NEB 3-pin package |
| Junction-to-Case Thermal Resistance, NDV | 24 °C/W for NDV package, case top |
| Accuracy, LM35A and LM35CA at 25°C | ±0.2 °C typ, ±0.5 °C tested limit; VS=5 Vdc, ILOAD=50 µA |
| Accuracy at -10°C | ±0.3 °C typ; LM35CA ±1 °C design limit; VS=5 Vdc, ILOAD=50 µA |
| Accuracy at TMAX | ±0.4 °C typ, ±1 °C tested limit for LM35A and LM35CA; VS=5 Vdc, ILOAD=50 µA |
| Accuracy at TMIN | ±0.4 °C typ; LM35A ±1 °C tested limit; LM35CA ±1.5 °C design limit; VS=5 Vdc, ILOAD=50 µA |
| Nonlinearity, LM35A and LM35CA | LM35A ±0.18 °C typ, ±0.35 °C design limit; LM35CA ±0.15 °C typ, ±0.3 °C design limit; TMIN ≤ TA ≤ TMAX, -40°C ≤ TJ ≤ 125°C |
| Sensor Gain Average Slope, TMIN to TMAX | 10 mV/°C typ, 9.9 mV/°C tested/design limit |
| Sensor Gain Average Slope, -40°C to 125°C TJ | 10 mV/°C typ, 10.1 mV/°C tested/design limit |
| Load Regulation at 25°C | ±0.4 mV/mA typ, ±1 mV/mA tested limit for LM35A and LM35CA, 0 ≤ IL ≤ 1 mA |
| Load Regulation over Temperature | ±0.5 mV/mA typ, ±3 mV/mA design limit for LM35A and LM35CA, 0 ≤ IL ≤ 1 mA |
| Line Regulation at 25°C | ±0.01 mV/V typ, ±0.05 mV/V tested limit for LM35A and LM35CA, 4 V ≤ VS ≤ 30 V |
| Line Regulation over Temperature | ±0.02 mV/V typ, ±0.1 mV/V design limit for LM35A and LM35CA, 4 V ≤ VS ≤ 30 V, -40°C ≤ TJ ≤ 125°C |
| Quiescent Current, 5 V at 25°C | LM35A 56 µA typ, 67 µA tested limit; LM35CA 56 µA typ, 67 µA tested limit |
| Quiescent Current, 5 V over Temperature | LM35A 105 µA typ, 131 µA design limit; LM35CA 91 µA typ, 114 µA design limit |
| Quiescent Current, 30 V at 25°C | LM35A 56.2 µA typ, 68 µA tested limit; LM35CA 56.2 µA typ, 68 µA tested limit |
| Quiescent Current, 30 V over Temperature | LM35A 105.5 µA typ, 133 µA design limit; LM35CA 91.5 µA typ, 116 µA design limit |
| Change of Quiescent Current at 25°C | 0.2 µA typ, 1 µA tested limit for LM35A and LM35CA, 4 V ≤ VS ≤ 30 V |
| Change of Quiescent Current over Temperature | 0.5 µA typ, 2 µA design limit for LM35A and LM35CA, 4 V ≤ VS ≤ 30 V, -40°C ≤ TJ ≤ 125°C |
| Temperature Coefficient of Quiescent Current | 0.39 µA/°C typ, 0.5 µA/°C design limit for LM35A and LM35CA, -40°C ≤ TJ ≤ 125°C |
| Minimum Temperature for Rated Accuracy | 1.5 °C typ, 2 °C design limit for LM35A and LM35CA, circuit of Figure 14, IL=0 |
| Long-Term Stability | ±0.08 °C at TJ=TMAX, 1000 hours |
| Output Pin | VOUT; TO46 pin 2, TO92 pin 2, TO220 pin 3, SO8 pin 1 |
| Ground Pin | GND; TO46 pin 3, TO92 pin 3, TO220 pin 2, SO8 pin 4 |
| Positive Supply Pin | +VS; TO46 pin 1, TO92 pin 1, TO220 pin 1, SO8 pin 8 |
| Datasheet Status | request_only |
Product Overview
The LM35 is a Texas Instruments precision centigrade temperature sensor in the Sensor category. Its output voltage is linearly proportional to Celsius temperature with a +10 mV/°C temperature scale factor. In a full-range centigrade temperature sensor circuit, the output is specified as -550 mV at TA=-55°C, 250 mV at TA=25°C, and 1500 mV at TA=150°C.
The device operates from a 4 V to 30 V supply, with a recommended +VS range of 4 V to 30 V. Feature-level parameters include current drain below 60 µA, 0.08°C self-heating in still air, ±0.25°C typical nonlinearity, and 0.1 Ω output impedance with a 1 mA load.
Package options listed for LM35 include TO-CAN 3-pin, TO-92 3-pin, SOIC 8-pin, and TO-220 3-pin cases. Pin functions are +VS, VOUT, and GND, with package-specific pin assignments for TO46, TO92, TO220, and SO8. The extracted operating temperature specifications cover LM35 and LM35A from -55°C to 150°C, LM35C and LM35CA from -40°C to 110°C, and LM35D from 0°C to 100°C.
Key Features
- +10 mV/°C output scale factor
- 0.5 °C ensured accuracy at TA=25°C
- -55°C to 150°C LM35 rated range
- 4 V to 30 V operating supply range
- Current drain below 60 µA
- 0.08 °C self-heating in still air
- ±0.25 °C typical nonlinearity
- 0.1 Ω output impedance at 1 mA load
- ±2500 V human-body model ESD rating
- Package options include TO-CAN, TO-92, SOIC, and TO-220
Typical Applications
- Centigrade temperature measurement
- Full-range temperature sensor circuits
- Low-current temperature sensing
- Analog Celsius voltage output sensing
- Temperature monitoring across specified ranges
Procurement Notes
When requesting a quote for LM35, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What output scale factor does the LM35 use?
The LM35 output voltage is linearly proportional to Celsius temperature with a +10 mV/°C scale factor. In the listed full-range circuit, output examples are -550 mV at -55°C, 250 mV at 25°C, and 1500 mV at 150°C.
What supply voltage range is specified for LM35 operation?
The LM35 operates from 4 V to 30 V. The recommended +VS operating condition is also 4 V to 30 V, while the absolute maximum supply voltage range is listed as -0.2 V to 35 V.
Which package cases are listed for the LM35?
The extracted package cases include TO-CAN 3-pin 4.699 mm x 4.699 mm, TO-92 3-pin 4.30 mm x 4.30 mm, SOIC 8-pin 4.90 mm x 3.91 mm, and TO-220 3-pin 14.986 mm x 10.16 mm.
What are the LM35 pin functions across packages?
The pin functions are +VS, VOUT, and GND. The extracted pinout lists VOUT on TO46 pin 2, TO92 pin 2, TO220 pin 3, and SO8 pin 1, with package-specific assignments also given for +VS and GND.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.