Overview
The AD8495CRMZ-R7, produced by Analog Devices Inc., is a precision thermocouple amplifier integrated circuit. This device is designed to provide accurate and reliable temperature measurements by conditioning thermocouple signals. It features a complete, precision laser wafer trimmed thermocouple signal conditioning system in a single IC package, making it highly versatile for various industrial and measurement applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 8-MSOP (0.118, 3.00mm Width) |
| Supply Voltage Range | 2.7 V to 36 V |
| Input Voltage Range | −VS − 0.2 to +VS − 1.6 V |
| Overvoltage Range | ±25 V |
| Input Bias Current | 25 nA to 50 nA |
| Common-Mode Rejection | 1 °C/V (VCM = 0 V to 3 V) |
| Output Voltage Range | −VS + 0.025 to +VS − 0.1 V |
| Short-Circuit Current | 7 mA |
| Bandwidth | 25 kHz (AD8495/AD8497) |
| Settling Time | 40 μs (to 0.1% for a 4 V output step) |
| Gain Error | 0.1% to 0.3% |
| Reference Input Resistance | 60 kΩ |
| Reference Input Current | 25 μA |
Key Features
- Complete, precision laser wafer trimmed thermocouple signal conditioning system in a single IC package.
- Flexible pinout allows operation as a setpoint controller or as a standalone Celsius thermometer.
- Rugged inputs withstand 4 kV ESD and provide overvoltage protection (OVP) up to ±25 V.
- Differential inputs reject common-mode noise on the thermocouple leads.
- Reference pin voltage can be offset to measure 0°C on single supplies.
- Available in a small, 8-lead MSOP package that is fully RoHS compliant.
Applications
The AD8495CRMZ-R7 is suitable for a wide range of applications, including industrial temperature measurement, process control, medical devices, and any system requiring precise thermocouple signal conditioning. Its ability to operate with a wide range of supply voltages and its robust input protection make it particularly useful in harsh industrial environments.
Q & A
- What is the AD8495CRMZ-R7 used for? The AD8495CRMZ-R7 is used for precision thermocouple signal conditioning in various industrial and measurement applications.
- What is the supply voltage range of the AD8495CRMZ-R7? The supply voltage range is from 2.7 V to 36 V.
- What is the input voltage range of the AD8495CRMZ-R7? The input voltage range is from −VS − 0.2 to +VS − 1.6 V.
- Does the AD8495CRMZ-R7 have overvoltage protection? Yes, it provides overvoltage protection up to ±25 V.
- What is the common-mode rejection ratio of the AD8495CRMZ-R7? The common-mode rejection ratio is 1 °C/V (VCM = 0 V to 3 V).
- What is the bandwidth of the AD8495CRMZ-R7? The bandwidth is 25 kHz for the AD8495/AD8497 models.
- How long does it take for the AD8495CRMZ-R7 to settle to 0.1% of a 4 V output step? It takes 40 μs to settle to 0.1% of a 4 V output step.
- Is the AD8495CRMZ-R7 RoHS compliant? Yes, it is fully RoHS compliant.
- What package types are available for the AD8495CRMZ-R7? It is available in an 8-lead MSOP package.
- Can the AD8495CRMZ-R7 be used as a setpoint controller or a standalone thermometer? Yes, it can be used in both configurations due to its flexible pinout.
