AD590KRZ

AD590KRZ is Analog Devices’ integrated temperature sensor with a current-output transducer. Its output current scales linearly with absolute temperature: Iout ≈ T(K) μA (about 298 μA at 25°C). It requires a single supply (typical 4–30 V) and the current can be converted to a voltage with a load resistor or an op-amp transimpedance stage for ADC interfacing. The KRZ suffix identifies the specific packaging/version (RoHS-compliant, tape-and-reel variant); check the datasheet for exact package details. Typical uses include temperature sensing, thermal monitoring, and circuit compensation. Advantages: simple current output, wide supply range, easy interfacing. For precise accuracy, drift, and operating temp range, refer to the latest AD590KRZ datasheet.

Key features of the AD590KRZ:
- Monolithic temperature transducer with a current output proportional to absolute temperature.
- Iout ≈ 1 µA per Kelvin × T(K); converts easily to a voltage with a single external resistor.
- Fully calibrated and linear across the operating temperature range.
- Wide operating temperature range suitable for industrial/high-temperature environments.
- Simple interface: no external amplification required; low external components.
- RoHS-compliant, small TO-92 (KRZ) package; low-cost, reliable.
- Single-supply operation with good stability and relatively low power consumption.
- Robust in various applications (remote sensing, HVAC, process control, instrumentation).

- Pin count: 3 pins (V+, Iout, V−).
- Function: A temperature transducer with a current-output proportional to absolute temperature: Iout ≈ 1 µA per kelvin (Iout = 1 µA/K × T(K)). The Iout pin sources current through an external load (to V−) to convert to a voltage (Vout = Iout × Rload).

- Manufacturer: Analog Devices, Inc. (ADI).
- What kind of company: A global American semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits and sensors.

AD590KRZ is a current-output, linear temperature transducer. Common application areas:
- Temperature monitoring and control in industrial automation and instrumentation
- Remote sensing over long cables (robust current output reduces noise and wiring issues)
- Thermal protection/monitoring for power supplies, converters, and motor drives
- Automotive sensors (engine, ambient, HVAC)
- Temperature compensation and calibration in measurement equipment
- Data acquisition and process-control systems
This covers general sensing, protection, and control roles across industries.

AD590KRZ is in a TO-92 plastic 3-lead package.