AN78920 - PSoC® 1 Temperature Measurement Using Diode
Last Updated: 04/04/2013
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Version: *A
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| AN78920 explains the diode-based temperature measurement using PSoC® 1 – CY8C28xxx family. |
The temperature is measured based on the principle of a diode’s forward bias current dependence on temperature.
Introduction
PSoC 1 – CY8C28xxx family has on-chip 8-bit IDAC, and a 14-bit Delta Sigma ADC, which enable accurate and high-resolution temperature measurements using an external diode-connected transistor. The example projects attached with this application note work with CY8CKIT-036 – PSoC Thermal management EBK.
There are various sensors available for measuring temperature such as Thermistor, Thermocouple, resistance temperature detectors (RTD). Choosing a sensor or method to employ for measuring the temperature depends on factors such as the accuracy requirement, the temperature range to be measured, and the cost of the temperature sensor. The diode based temperature measurement is an easy, accurate, and also relatively low-cost method for measuring the temperature.
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Related Application Notes:
Domain Tags: Analog, Data Converters, ADC, Power or Thermal Control, Thermal Management, Sensors, Temperature, Diode
Market Segment Tags: Communications & Telecom, Public Infrastructure - Switching & Transport, Service Provider Routers & Switches, Industrial Equipment
Related Knowledge Base: ADC, Amplifier, MiniProg, SC Block, Switch Capacitor, DELSIG, Delta Sigma ADC
Spec No: 001-78920;
Sunset Owner: PRKU;
Secondary Owner: GULA;
Sunset Date: 12/07/12
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