MAX31856 Precision Thermocouple to Digital Converter with Linearization Electrical Characteristics (continued) (3.0V ≤ VDD ≤ 3.6V, TA = -55°C to +125°C, unless otherwise noted.)(Notes 2, 3, and 4) PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS Undervoltage Falling Edge Threshold (Note 8) -0.3 -0.17 0 V Undervoltage Hysteresis 0.09 V Type B, TA = 0 to 125°C, -0.24 +0.25 TTC = 95°C to +1798°C Type E, TA = -55°C to +125°C -0.14 +0.06 TTC = -200°C to +1000°C Type J, TA = -55°C to +125°C -0.11 +0.10 TTC = -210°C to +1200°C Type K, TA = -55°C to +125°C -0.13 +0.12 Thermocouple Linearity TTC = -200°C to +1372°C Correction Error °C Type N, TA = -55°C to +125°C -0.09 +0.08 TTC = -200°C to +1300°C Type R, TA = -50°C to +125°C -0.19 +0.17 TTC = -50°C to +1768°C Type S, TA = -50°C to +125°C -0.16 +0.20 TTC = -50°C to +1768°C Type T, TA = -55°C to +125°C -0.07 +0.07 TTC = -200°C to +400°C 1-Shot conversion or first conversion in auto-conversion 143 155 mode (60Hz) 1-Shot conversion or first Temperature Conversion Time conversion in auto-conversion 169 185 (Thermocouple + Cold Junction) tCONV ms mode (50Hz) Auto conversion mode, conversions 2 through n (60Hz) 82 90 Auto conversion mode, conversions 2 through n (50Hz) 98 110 www.maximintegrated.com Maxim Integrated │ 4
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