Datasheet MAX31856 (Analog Devices)

HerstellerAnalog Devices
BeschreibungPrecision Thermocouple to Digital Converter with Linearization
Seiten / Seite30 / 1 — EVALUATION KIT AVAILABLE. MAX31856. Precision Thermocouple to Digital …
Dateiformat / GrößePDF / 676 Kb
DokumentenspracheEnglisch

EVALUATION KIT AVAILABLE. MAX31856. Precision Thermocouple to Digital Converter. with Linearization. General Description

Datasheet MAX31856 Analog Devices

Modelllinie für dieses Datenblatt

Textversion des Dokuments

link to page 29
EVALUATION KIT AVAILABLE MAX31856 Precision Thermocouple to Digital Converter with Linearization General Description Benefits and Features
The MAX31856 performs cold-junction compensation ● Provides High-Accuracy Thermocouple Temperature and digitizes the signal from any type of thermocouple. Readings The output data is formatted in degrees Celsius. This • Includes Automatic Linearization Correction for 8 converter resolves temperatures to 0.0078125°C, allows Thermocouple Types readings as high as +1800°C and as low as -210°C • ±0.15% (max, -20
°
C to +85
°
C) Thermocouple Full- (depending on thermocouple type), and exhibits thermo- Scale and Linearity Error couple voltage measurement accuracy of ±0.15%. The • 19-Bit, 0.0078125°C Thermocouple Temperature thermocouple inputs are protected against overvoltage Resolution conditions up to ±45V. ● Internal Cold-Junction Compensation Minimizes A lookup table (LUT) stores linearity correction data for System Components several types of thermocouples (K, J, N, R, S, T, E, and • ±0.7°C (max, -20
°
C to +85
°
C) Cold-Junction B). Line frequency filtering of 50Hz and 60Hz is included, Accuracy as is thermocouple fault detection. A SPI-compatible inter- face allows selection of thermocouple type and setup of ● ±45V Input Protection Provides Robust System the conversion and fault detection processes. Performance ● Simplifies System Fault Management and
Applications
Troubleshooting ● Temperature Controllers • Detects Open Thermocouples ● Industrial Ovens, Furnaces, and Environmental • Over- and Undertemperature Fault Detection Chambers ● 50Hz/60Hz Noise Rejection Filtering Improves ● Industrial Equipment System Performance
Ordering Information appears at end of data sheet.
● 14-Pin TSSOP Package
Typical Application Circuit
AGND DGND BIAS FAULT 0.01µF SDI T- 0.1µF
MAX31856
T+ SDO 0.01µF TO MICROCONTROLLER 3.3V AVDD SCK 0.1µF DNC CS DRDY DVDD 3.3V 0.1µF 19-7534; Rev 0; 2/15