LTC2986CLX#PBF

LTC2986 is a multi-sensor high accuracy digital temperature measurement system with EEPROM. It measures a wide variety of temperature sensors and digitally outputs the result in °C or °F, with 0.1°C accuracy and 0.001°C resolution. It measures the temperature of virtually all standard (Type B, E, J, K, N, S, R, T) or custom thermocouples, automatically compensate for cold junction temperatures and linearize the results. The device can also measure temperature with standard 2-, 3- or 4-wire RTDs, thermistors, and diodes. It includes excitation current sources and fault detection circuitry appropriate for each type of temperature sensor. It is widely used in application such as direct thermocouple measurements, direct RTD measurements, direct thermistor measurements, custom sensor applications etc.

• Single supply operation is 2.85V to 5.25V, resolution is 24bits
• 10 flexible inputs allow interchanging sensors, integral nonlinearity is 2ppm of VREF
• Automatic thermocouple cold junction compensation
• Built-in standard and user-programmable coefficients for thermocouples, RTDs and thermistors
• Measures negative thermocouple voltages
• Automatic burn out, short-circuit and fault detection
• Buffered inputs allow external protection
• Simultaneous 50Hz/60Hz rejection, supply current is 15mA typ at (TA = 25°C)
• Output voltage temperature coefficient is 3ppm/°C typ at (TA = 25°C)
• Operating temperature is 0°C to 70°C, package style is 48-lead LQFP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party