MAX31855JASA+ Maxim Integrated Integrated Circuit (Small Outline Packages) In Stock
Precision thermocouple-to-digital converter with integrated cold-junction compensation for temperature measurement systems. The MAX31855JASA+ provides digital 12-bit temperature resolution with SPI interface, supporting K-type thermocouples across -200°C to 1372°C measurement range. Packaged in 8-pin SOIC for embedded thermal sensing applications.
- Manufacturer
- Maxim Integrated
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MAX31855JASA+ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.9901(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 12-bit digital temperature resolution with ±2°C accuracy for precision measurement
- Integrated cold-junction compensation eliminates external reference requirements
- SPI digital interface enables direct microcontroller integration for IoT and industrial systems
Applications
The MAX31855JASA+ is ideal for industrial temperature monitoring, HVAC systems, food safety equipment, and laboratory instrumentation requiring K-type thermocouple interfaces. Its 12-bit resolution and integrated compensation enable direct connection to 3.3V and 5V microcontrollers for real-time thermal management in ovens, incubators, and process control systems.
Specifications
| Manufacturer Package Code | 8-SOIC_N-150_MIL |
| Date Of Intro | 2011-04-05 |
| YTEOL | 10 |
| Analog IC - Other Type | ANALOG CIRCUIT |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 1.5mA |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MAX31855JASA+:
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Frequently Asked Questions
What temperature measurement range and resolution does MAX31855JASA+ provide for K-type thermocouple applications?
The MAX31855JASA+ delivers 12-bit digital resolution (0.25°C per LSB) supporting K-type thermocouples from -200°C to 1372°C full-scale range. For a food safety oven controller requiring ±2°C accuracy at 350°C, the MAX31855JASA+ provides 0.25°C resolution enabling tight tolerance feedback loops without external digital filtering.
How does the integrated cold-junction compensation simplify thermocouple measurement circuit design?
The MAX31855JASA+ integrates on-chip temperature sensing to automatically compensate for reference junction temperature, eliminating the need for external RTD sensors or dual-junction thermocouples. This built-in compensation reduces component count from 5-7 parts to 1, cutting PCB area by 65% and reducing system cost by $12-18 per industrial controller unit.
When is MAX31855JASA+ preferred over analog thermocouple amplifiers like AD595 or LT1025 for embedded systems?
The MAX31855JASA+ with direct SPI digital output eliminates analog signal conditioning, noise filtering, and ADC calibration required by 595/LT1025 amplifiers. For 16-channel temperature monitoring in industrial HVAC systems, MAX31855JASA+ reduces microcontroller firmware complexity by 60%, supports simultaneous 16x 12-bit measurements at 100ms intervals, and cuts analog circuit noise from 50mV to <100µV.
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About Maxim Integrated
Maxim Integrated is a leading electronic component manufacturer. FindMyChip sources Maxim Integrated ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $6.5899 | $658.99 |
| 500+ | $6.1318 | $3065.90 |
| 1000+ | $5.9901 | $5990.09 |
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