AD8497ARMZ-R7
Amplifiers & Comparators
Technical Specifications
| Type | Description |
|---|---|
| Features | Overvoltage protection |
| Package / Case | MSOP-8 |
Product Introduction
AD8494/AD8495/AD8496/AD8497 are precision instrumentation amplifiers with integrated thermocouple cold junction compensators. The combination of an ice point reference and a pre-calibrated amplifier enables high-level <5mV/°C> output directly from thermocouple signals. These devices can be used as standalone thermometers or as switch-output setpoint controllers with fixed or remote setpoint control.
The AD8494/AD8495/AD8496/AD8497 operate from a single supply as low as 3V; temperatures below 0°C can be measured by biasing the reference input. To minimize self-heating, the total supply current of the unloaded AD849x is typically 180μA, yet the devices can source or sink more than ±5mA to a load.
The AD8494 and AD8496 are laser wafer trimmed and pre-calibrated to match the characteristics of Type J (iron-constantan) thermocouples; the AD8495 and AD8497 are laser trimmed to match the characteristics of Type K (chromel-alumel) thermocouples.
The AD8494/AD8495/AD8496/AD8497 support a wide supply voltage range. With a 5V single supply, the 5mV/°C output allows these devices to cover nearly 1000 degrees of thermocouple temperature range.
At 3V supply, the AD8494/AD8495/AD8496/AD8497 can interface directly with low supply voltage ADCs. These devices can also operate from supplies up to 36V, supporting industrial systems that require a wide common-mode input range.
Features
- Complete, precision laser wafer-trimmed thermocouple signal conditioning system in a single IC package.
- Flexible pin assignment allows use as a setpoint controller or standalone Celsius thermometer.
- Ruggedized inputs withstand 4kV ESD with OVP up to Vs±25V.
- Differential inputs reject common-mode noise on thermocouple leads.
- Single-supply operation with biasable reference pin for 0°C measurement.
- 8-pin MSOP package, fully RoHS compliant.
Applications
- J or K type thermocouple temperature measurement
- Setpoint controller
- Celsius thermometer
- Universal cold junction compensator
- White goods (oven, stove) temperature measurement
- Exhaust gas temperature detection
- Catalytic converter temperature detection
Datasheet
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542339000 |
| USHTS | 8542330001 |
| TARIC | 8542339000 |
| Type | Details |
|---|---|
| CAHTS | 8542330000 |
| BRHTS | 85423390 |
| INHTS | 85423300 |
| MXHTS | 8542.33.99 |
Sourcing Information
Need AD8497ARMZ-R7 from Analog Devices for your next order? SZ Procure provides local sourcing support in Shenzhen — we help buyers check supplier availability, compare quotations, and coordinate procurement for China-sourced components.
Our Shenzhen sourcing team can help with supplier sourcing, availability checks and quotation comparison for AD8497ARMZ-R7, then coordinate procurement, supplier screening, inspection and international shipping based on what you need.
Ready to source AD8497ARMZ-R7? Send your requirement through Request a Quote and we'll help check sourcing options and procurement costs.