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National's broad portfolio of thermal management ICs allows design engineers to enhance system reliability and increase system efficiency. With one of the industry's largest offering of analog and digital temp sensors, including thermal switches, remote diode temp sensors, and hardware monitors, National can provide a solution to fit any designer's needs.
| Part Number |
Temp Accuracy |
Supply Range |
Temp Range |
|
± 1.5°C |
1.5 – 5.5V, 5.4 µA |
-50 – 150°C |
|
± 1.5°C |
1.5 – 5.5V, 5.4 µA |
-50 – 150°C |
|
± 1.5°C |
1.5 – 5.5V, 9 µA |
-50 – 150°C |
|
± 1.5°C |
2.4 – 5.5V, 4.5 µA |
-55 – 130°C |
|
± 0.5°C |
4 – 30V, 56 µA |
-55 – 150°C |
| Part Number |
Accuracy, Pkg, # Tcrit |
Measure Method |
Remote Diodes |
|
± 0.75°C, MSOP-8, 1 |
45 nm, TruTherm® |
1 |
|
± 0.75°C, MSOP-8, 1 |
65 nm, TruTherm |
1 |
|
± 1.25°C, MSOP-8, 1 |
65 nm, TruTherm |
2 |
|
± 0.875°C, LLP-14, 3 |
65 nm, TruTherm |
0 – 4 |
|
± 1.1°C, LLP-14, 3 |
3904 |
0 – 4 |
| Part Number |
Acc, Resolution |
Voltage Range |
Temp Range |
Interface |
|
± 2.0°C, 9 bits |
3 – 5.5V, 1 mA |
-55 – 125°C |
2-wire |
|
± 2.0°C, 9 bits |
3 – 5.5V, 1 mA |
-55 – 125°C |
2-wire |
|
± 0.33°C & ± 0.5°C, 13 bits |
2.7 – 5.5V, 0.625 mA |
-55 – 150°C |
2-wire |
|
± 1.5°C, 13 bits |
32.65 – 5.5V, 0.55 mA |
-40 – 150°C |
3-wire |
|
± 1.0°C, 14 bits |
2.4 – 5.5V, 0.28 mA |
-55 – 150°C |
3-wire |
|
± 1.25°C, 13 bits |
3 – 5.5V, 0.52 mA |
-55 – 150°C |
3-wire |
| Part Number |
Set Point Type, Acc |
Supply Range |
Set Point Range |
|
Factory, ± 2.2°C |
1.6 – 5.5V, 8 µA |
0 – 150°C, 1°C inc |
|
Factory, ± 3°C |
2.7 – 5.5V, 16 µA |
-55 – 125°C, 1°C inc |
|
Factory, ± 3°C |
2.7 – 5.5V, 15 µA |
120 – 150°C, 1°C inc |
|
User program, ± 2°C |
2.7 – 10V, 110 µA |
-40 – 125°C, ext resistor set |
|
User program, ± 1.5°C |
2.4 – 5.5V, 24 µA |
-40 – 150°C, ext resistor set |
| Part Number |
Fan Control |
Key Features |
|
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16-channel 12-bit ADC with no missing codes and ±0.1% TUE, twelve 12-bit DACs, internal reference, internal temp sensor, 8-bit GPIO port, I2C interface. |
|
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10-bit delta-sigma ADC monitors 7 voltages & local temp, measures 2 fans speed, other hardware monitoring functions via I2C, compatible with LM80 |
|
PI & LUT |
Workstation HWM, 4 TruTherm remote diodes, 4 tach inputs, 2 fan controls, 8 volt monitors, closed loop fan control for 4-pin fans |
|
PI & LUT |
Server HWM, 4 TruTherm remote diodes, 4 tach inputs, 2 fan controls, 16 volt monitors, closed loop fan control for 4-pin fans |
|
Linear |
Desktop HWM, dual RDTS, supports 4-pin fans |
|
12-point LUT |
11-bit remote diode with TruTherm, improved analog front end, digital filter |
|
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Voltage monitoring, DAC output, tach inputs |
Sensor AFE for Temperature and Other Sensors
LMP90100 – Multi-Channel 24-bit Sensor AFE
The LMP90100 Sensor AFE features the industry's only low-power, fully configurable 24-bit ΣΔ ADC with true continuous background calibration, eliminating gain and offset drift over time and temperature and making it ideal for critical performance and low power applications.
- Multi-channel Sensor AFE with a 24-bit Sigma Delta ADC core
- Flexible, programmable mux (4 differential, 7 single-ended, or a combination)
- Continuous background sensor diagnostics reduces downtime and improves system efficiency
- Quick design and evaluation
- Ideal for high-precision, multi-sensor temperature, pressure, load, and force applications
- Industrial, process control, medical, and test & measurement applications
WEBENCH® Sensor Designer
Start with a thermocouple from a list of market leaders, or specify your own sensor requirements by parameter by creating a custom sensor. WEBENCH Sensor Designer provides you with optimized signal path performance, bill of materials, budgetary cost, and links to evaluation boards and other tools for testing and validating your simulated solution. The tool provides a complete sensor to digital serial output solution, including sensor interface, excitation source, precision amplifier and filter, 8-bit through 16-bit ADCs, and a serialized output to connect to various back-end systems.
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