MAX31855JASA+
Temperature Sensor IC, Thermocouple, Digital, ± 2°C, -40 °C, 750 °C, NSOIC, 8 Pins
| Manufacturer | ANALOG DEVICES |
|---|---|
| Manufacturer Part No | MAX31855JASA+Copy |
| Manufacturer Standard Lead Time | 12 weeks |
| Newark Part No. | 73Y3351 |
| Your Part Number | |
| Technical Datasheet |
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| Quantity | Price |
|---|---|
| 1+ | $11.900 |
| 10+ | $9.330 |
| 25+ | $8.690 |
| 50+ | $8.340 |
| 100+ | $7.980 |
| 250+ | $7.820 |
Product Information
| Manufacturer | ANALOG DEVICES |
|---|---|
| Manufacturer Part No | MAX31855JASA+Copy |
| Manufacturer Standard Lead Time | 12 weeks |
| Newark Part No. | 73Y3351 |
| Technical Datasheet | |
| Sensor Output Type | Digital |
| IC Output Type | Digital |
| Sensing Accuracy Range | ± 2°C |
| Accuracy | ± 2°C |
| Sensing Accuracy Range | ± 2°C |
| Measured Temperature Min | -40°C |
| Sensing Temperature Min | -40°C |
| Sensing Temperature Max | 750°C |
| Measured Temperature Max | 750°C |
| Sensor Case Style | NSOIC |
| Sensor Case / Package | NSOIC |
| No. of Pins | 8Pins |
| Supply Voltage Min | 3V |
| Supply Voltage Max | 3.6V |
| No. of Channels | 1Channels |
| Resolution | 14 bits |
| Output Interface | SPI |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| Product Range | - |
| Qualification | - |
| MSL | MSL 1 - Unlimited |
| Automotive Qualification Standard | - |
| SVHC | No SVHC (04-Feb-2026) |
Product Overview
The MAX31855JASA+ is a cold junction compensated thermocouple to digital converter with built-in 14bit analogue to digital converter in 8 pin NSOIC package. The device contains cold junction compensation sensing and correction, digital controller, SPI compatible interface and associated control logic. It is designed to work in conjunction with an external microcontroller (μC) in thermostatic, process control or monitoring applications. The MAX31855J performs cold junction compensation and digitizes the signal from J type thermocouple with measuring temperature range of -40°C to +750°C. The Thermocouple temperature gain and offset error (57.953μV/°C nominal sensitivity) is ±2°C at T (thermocouple) = -210°C to +750°C, TA = -20°C to +85°C. The data outputs in a signed 14bit, SPI compatible read only format.
- Supply voltage range from 3V to 3.6V
- Serial clock frequency of 5MHz
- Integration reduces design time and lowers system cost
- Detects thermocouple shorts to GND or VCC and open thermocouple
- 14bit, 0.25°C resolution converter
- Power supply current is 900μA
- Thermocouple input bias current is 100nA
- Temperature conversion time is 70ms and thermocouple conversion power-up time is 200ms
- Appliances; Automotive; HVAC; Industrial
Applications
Sensing & Instrumentation, Industrial, HVAC, Automotive
Notes
ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party
Technical Specifications
| Sensor Output Type | Digital |
|---|---|
| Sensing Accuracy Range | ± 2°C |
| Sensing Accuracy Range | ± 2°C |
| Sensing Temperature Min | -40°C |
| Measured Temperature Max | 750°C |
| Sensor Case / Package | NSOIC |
| Supply Voltage Min | 3V |
| No. of Channels | 1Channels |
| Output Interface | SPI |
| Operating Temperature Max | 125°C |
| Qualification | - |
| Automotive Qualification Standard | - |
| IC Output Type | Digital |
|---|---|
| Accuracy | ± 2°C |
| Measured Temperature Min | -40°C |
| Sensing Temperature Max | 750°C |
| Sensor Case Style | NSOIC |
| No. of Pins | 8Pins |
| Supply Voltage Max | 3.6V |
| Resolution | 14 bits |
| Operating Temperature Min | -40°C |
| Product Range | - |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (04-Feb-2026) |
Technical Docs (2)
Associated Products
3 Products Found
Legislation and Environmental
| US ECCN: | EAR99 |
|---|---|
| EU ECCN: | Unknown |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (04-Feb-2026) |
| Download Product Compliance Certificate | Product Compliance Certificate |