What this sensor delivers on the board
The AD22100KRZ-REEL7 from Analog Devices is a ratiometric analog temperature sensor that outputs a voltage linearly proportional to temperature at 22.5 mV/°C. It covers a local sensing range of 0°C to 100°C with ±2°C accuracy at 25°C, while the device itself is rated for an operating temperature span of -50°C to 150°C — meaning the sensor IC can survive and function in the same harsh compartment it monitors, not just the controlled zone. The analog voltage output feeds directly into an ADC input; no digital protocol handshake, no configuration registers, just a clean DC level that scales with temperature. Typical deployment includes motor-drive windings, exhaust-gas temperature monitoring, industrial oven zones, and outdoor telecom enclosures where the -50°C to 150°C rating covers both cold-soak and heat-soak conditions without needing a separate signal conditioner.
Package and mounting — SOIC-8 on a reel
Housed in an 8-SOIC with 3.90 mm body width, the AD22100KRZ-REEL7 is a surface-mount part that reflows on a standard lead-free profile. ROHS3 compliance covers the full substance restriction list, so no exemption paperwork needed for EU-market equipment.
Lifecycle and sourcing posture
The AD22100KRZ-REEL7 carries an Active lifecycle status — no last-time-buy notice, no NRND flag. For BOM qualification, this part can be specified into new designs without planning for a near-term obsolescence workaround. The closest functional sibling in the same AD22100 family is the AD22100KRZ, which shares the same 22.5 mV/°C scale, ±2°C accuracy, and -50°C to 150°C rating but ships in Tube instead of Tape & Reel — a packaging difference, not a silicon one.