Key facts
- Brand
- Analog Devices
- Model
- CN-0172
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2026-10-19
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Analog Devices CN-0172 3-Channel Thermocouple Measurement System User Manual
The CN-0172 is a reference design for a 3-channel thermocouple temperature measurement system with an accuracy of 0.25°C. It is designed for process control and industrial automation applications, providing a high-precision, multi-channel thermocouple measurement solution. The design includes detailed documentation, complete design and integration files, and factory-tested evaluation hardware to accelerate product development and reduce design risk.
The circuit utilizes the AD7793, a 3-channel, low-noise, low-power, 24-bit Sigma-Delta ADC with integrated instrumentation amplifiers and a reference voltage source, to measure thermocouple voltages. For cold junction compensation, the design employs the ADT7320, a precision 16-bit digital SPI temperature sensor with ±0.25°C accuracy over a temperature range of -20°C to +105°C. Both devices are controlled via the SPI interface using the System Demonstration Platform (EVAL-SDP-CB1Z). This manual is written in Chinese.
Analog Devices CN-0172 specifications
| Accuracy | 0.25°C |
|---|---|
| Channels | 3-channel |
| ADC Resolution | 24-bit |
| Temperature Sensor Accuracy | ±0.25°C |
| Temperature Range | -20°C to +105°C |
| Resolution | 0.0078°C |
Source: Analog Devices CN-0172 3-Channel Thermocouple Measurement System User Manual
All Analog Devices CN-0172 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the accuracy of the CN-0172 system?
The system provides an accuracy of 0.25°C.
From: Analog Devices CN-0172 3-Channel Thermocouple Measurement System User Manual
Which ADC is used in the CN-0172 design?
The design uses the AD7793, a 3-channel, low-noise, low-power, 24-bit Sigma-Delta ADC.
From: Analog Devices CN-0172 3-Channel Thermocouple Measurement System User Manual