Overview
The AD8495ARMZ-R7 is a full-range K-type thermocouple amplifier designed by Analog Devices Inc. for signal conditioning applications. It is optimized for accurate temperature monitoring and operates within a temperature range of 0°C to 50°C, with cold junction compensation. The device is versatile, supporting a supply voltage range from 2.7V to 36V, making it suitable for various circuit designs. Housed in an 8-pin MSOP package, it measures 3 mm in length and width, offering a compact solution for diverse applications.
The AD8495ARMZ-R7 can function effectively in harsh environments with an operating temperature range from -40°C to 125°C. It features a low average bias current of 0.05 µA, which is beneficial for power-sensitive applications. Additionally, the device is RoHS compliant, ensuring its suitability for environmentally sensitive applications.
Key Specifications
| Specification | Value |
|---|---|
| Package | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Input Type | Differential |
| Output Type | Analog |
| Supply Voltage Range | 2.7V to 36V |
| Operating Temperature Range | 0°C to 50°C (ambient), -40°C to 125°C (operational) |
| Supply Current | 250 µA |
| Input Bias Current | 25 nA |
| Common-Mode Rejection | 1 °C/V (VCM = 0 V to 3 V) |
| Output Voltage Range | -VS + 0.025 to +VS - 0.1 |
| Short-Circuit Current | 7 mA |
| Bandwidth | 25 kHz |
| Settling Time to 0.1% | 40 µs |
Key Features
- Cold junction compensation for accurate temperature measurements.
- Wide supply voltage range (2.7V to 36V) for flexibility in circuit designs.
- Compact 8-pin MSOP package, measuring 3 mm in length and width.
- Low average bias current of 0.05 µA, suitable for power-sensitive applications.
- RoHS compliance for environmentally sensitive applications.
- Differential inputs to reject common-mode noise on thermocouple leads.
- Reference pin voltage can be offset to measure 0°C on single supplies.
- High common-mode rejection ratio (CMRR) for improved noise immunity.
Applications
- Consumer Electronics: Suitable for smart appliances such as ovens and refrigerators that require temperature monitoring.
- Energy and Power Systems: Can be integrated into energy metering equipment or monitoring systems to measure temperatures of electrical components.
- Renewable Energy: Useful in solar power systems as a signal conditioner for temperature sensors monitoring solar panel efficiency.
- Education and Research: Useful in educational laboratories and research environments for experiments involving thermocouples.
- Industrial Automation: Suitable for various industrial applications where accurate temperature monitoring is crucial.
Q & A
- What is the AD8495ARMZ-R7 used for?
The AD8495ARMZ-R7 is a thermocouple amplifier used for signal conditioning applications, particularly for accurate temperature monitoring.
- What is the operating temperature range of the AD8495ARMZ-R7?
The device operates within an ambient temperature range of 0°C to 50°C and can function in harsh environments with temperatures ranging from -40°C to 125°C.
- What is the supply voltage range for the AD8495ARMZ-R7?
The supply voltage range is from 2.7V to 36V.
- What package type does the AD8495ARMZ-R7 come in?
The device is housed in an 8-pin MSOP package.
- Is the AD8495ARMZ-R7 RoHS compliant?
Yes, the AD8495ARMZ-R7 is RoHS compliant.
- What is the average bias current of the AD8495ARMZ-R7?
The average bias current is 0.05 µA.
- What are some common applications of the AD8495ARMZ-R7?
Common applications include consumer electronics, energy and power systems, renewable energy, education and research, and industrial automation.
- How does the AD8495ARMZ-R7 handle common-mode noise?
The device features differential inputs that reject common-mode noise on the thermocouple leads.
- What is the bandwidth of the AD8495ARMZ-R7?
The bandwidth is 25 kHz.
- How long does it take for the AD8495ARMZ-R7 to settle to 0.1% of the output step?
The settling time to 0.1% is 40 µs.
