Temperature sensor type K amplifier / CJMCU-8495 (AD8495 ARMZ)

This K-type thermocouple amplifier is the ideal solution for precise temperature measurements in demanding applications. With its ability to significantly amplify the weak signal of a thermocouple, it enables reliable sampling by most ADCs (analog-to-digital converters). The integrated temperature sensor provides automatic cold junction compensation, while the fixed gain factor converts the thermocouple voltage into an easily interpretable 5 mV/°C output voltage.

Key features:

• Precise temperature measurement: supports thermocouples and provides a precise output voltage proportional to the measured temperature.
• High common mode rejection: Minimizes interference caused by long leads or external influences.
• High impedance input: Enables additional filtering and ensures maximum signal stability.
• Wide temperature range: With a 5V supply, the amplifier covers temperatures up to 1000 °C.

Specifications:

• Item type: Amplifier module for K-type thermocouple
• Model: CJMCU-8495
• Reference pin: suitable for offset adjustments
• Precision: 1 °C initial accuracy and 0.025 °C/°C ambient temperature suppression
• Power consumption: <1 mW at a supply voltage of 5 V.
• Robustness: Input withstands 4 kV ESD and provides overvoltage protection up to ±25 V
• Linearity: error less than ±2 °C (limited by thermocouple characteristics).
• Dimensions: approx. 30 x 10.6 x 1.65 mm
• Soldered: yes
• Weight: approx. 3 g

Pin description:

• +In: Positive input for thermocouple signal
• -In: Negative input for thermocouple signal
• Vout: Output voltage proportional to temperature
• Ref: Reference input (1.24 V). Maximum operating voltage: 18 V, recommended supply: 5 V

Scope of delivery:

• 1x AD8495 ARMZ / CJMCU-8495 thermocouple amplifier type K