What the AD22100KTZ does and where it fits
The AD22100KTZ from Analog Devices is a local analog temperature sensor that outputs a voltage linearly proportional to temperature at 22.5 mV/°C. It measures its own die temperature over a calibrated local range of 0°C to 100°C, while the device itself can survive and operate from -50°C to 150°C.
Package and mounting — through-hole convenience
Housed in a TO-92-3 through-hole package, the AD22100KTZ suits hand-assembly, breadboard prototyping, or retrofit into legacy boards that lack SMD pads. The three leads are V+, GND, and Vout — no external components needed for basic operation.
Lifecycle and sourcing — active, no LTB clock ticking
ADI lists the AD22100KTZ as Active (current production). No last-time-buy notice, no end-of-life risk for ongoing designs. ROHS3 compliant, so it passes the latest EU restriction updates without a waiver. No direct second-source from another manufacturer, but the AD22100 family shares the same pinout and scaling — the AD22100STZ is the same die in a surface-mount SOIC-8 if your board later migrates to SMD.