Make a TC Meter

With the Linear Technology LTC2492
With Mark Thoren, Applications Engineering Manager – Mixed Signal Products, Linear Technology Corporation

Direct Link to the YouTube Video: CLICK HERE

Milpitas CA, USA — Thermocouples are extremely simple and rugged yet the output is very small – tens of microvolts per degree Celsius.

Linear Technology’s LTC2492 ADC greatly simplifies thermocouple instrument design. A simple filter and protection circuit is all that is required to build a rugged, ready-to-use meter.

Traditionally, thermocouple measurement circuits use a cold junction compensation circuit to drive the thermocouple negative terminal and a low offset amplifier with enough gain to use the entire input span of a 12- or 16-bit Analog to Digital Converter (ADC).

The Model LTC2492  is a 24-Bit 2-/4-Channel Delta Sigma ADC with Easy Drive Input Current Cancellation.

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