MAX31855JASA+ Maxim Integrated Integrated Circuit (Small Outline Packages) In Stock

Name: MAX31855JASA+
Brand: Maxim Integrated
SKU: MAX31855JASA+
Availability: InStock

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.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

MAX31855JASA+Small Outline Packages

Quick Facts

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

What are the key features of MAX31855JASA+?

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

What is MAX31855JASA+ used for?

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.

What are the specifications of MAX31855JASA+?

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

Where can I find the MAX31855JASA+ datasheet?

MAX31855JASA+ Datasheet Download

Official datasheet from Maxim Integrated

What are equivalent replacements for MAX31855JASA+?

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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AvailabilityIn Stock

Reference Price (USD)

From $5.9901

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
100+	$6.5899	$658.99
500+	$6.1318	$3065.90
1000+	$5.9901	$5990.09

pcs

Unit price: $6.5899 · Total: $658.99

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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MAX31855JASA+ Maxim Integrated Integrated Circuit (Small Outline Packages) In Stock

What are the key features of MAX31855JASA+?

What is MAX31855JASA+ used for?

What are the specifications of MAX31855JASA+?

Compliance & Regulatory

Where can I find the MAX31855JASA+ datasheet?

What are equivalent replacements for MAX31855JASA+?

Frequently Asked Questions

What temperature measurement range and resolution does MAX31855JASA+ provide for K-type thermocouple applications?

How does the integrated cold-junction compensation simplify thermocouple measurement circuit design?

When is MAX31855JASA+ preferred over analog thermocouple amplifiers like AD595 or LT1025 for embedded systems?

Related Guides

DP83TG720SWRHATQ1 Automotive Ethernet PHY Selection Guide

TLV76033 Selection Guide: Headroom, Heat, and Sourcing

DP83TG720SWRHATQ1 Automotive Ethernet Board Design Guide

BQ76942PFBR Battery Monitor Selection and Procurement Guide

Why Buy from FindMyChip

About Maxim Integrated

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