MAX31855KASA+ vs MAX6675ISA+ Comparison
Detailed side-by-side comparison of MAX31855KASA+ by Analog Devices and MAX6675ISA+ by Maxim Integrated. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Analog Devices
MAX31855KASA+ - K-Type Thermocouple-to-Digital Converter | Maxim Integrated
MAX31855KASA+ ✓ ActiveMaxim Integrated
MAX6675ISA+ - K-Thermocouple-to-Digital, 0-1024°C, SPI | Maxim
MAX6675ISA+ ✓ ActiveSpecification Comparison
| Parameter | MAX31855KASA+ | MAX6675ISA+ |
|---|---|---|
| Brand | Analog Devices | Maxim Integrated |
| Category | Temperature Sensors | Temperature Sensors |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.20 | $6.55 |
| Function | Thermocouple-to-Digital Converter with Cold-Junction Compensation | Thermocouple-to-Digital Converter (Type-K) |
| Supported Thermocouple Type | K (K-type probe input) | — |
| Output Resolution | 14-bit signed (0.25 degC per LSB) | — |
| Output Interface | SPI-compatible, read-only | — |
| Thermocouple Temperature Range | -270 degC to +1800 degC | — |
| Thermocouple Accuracy | plus/minus 2 degC | 8 LSB (0°C to +700°C) |
| Cold-Junction Compensation | On-chip, integrated | Built-in |
| Open-Thermocouple Detection | Yes (fault register) | — |
| Supply Voltage (VDD) | 3.0 V to 3.6 V (2.7 V min per datasheet) | — |
| Supply Current | [DATA_NEEDED: typical operating current] | — |
| Operating Temperature | -40 degC to +125 degC | — |
| Package | 8-pin SOIC (NSOIC), 3.90 mm body | 8-pin SOIC (ISA / SO-8) |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | [DATA_NEEDED: MSL rating] | 1 (unlimited floor life) |
| RoHS Status | Compliant (per distributor listing) | Compliant |
| Thermocouple Type | — | K-Type |
| Temperature Range | — | 0 °C to +1024 °C |
| Resolution | — | 0.25 °C (12-bit) |
| Supply Voltage | — | 3.0 V to 5.5 V |
| Supply Current (typical) | — | 1.5 mA |
| Interface | — | SPI-compatible (read-only, 3-wire) |
| Conversion Method | — | On-demand, single per CS cycle |
| Thermocouple Disconnect Detection | — | Yes (via pull-up) |
| Operating Temperature (device) | — | -20 °C to +85 °C |