Analog current output, ±1°C — what this sensor delivers
The AD592BNZ is a precision analog temperature sensor from Analog Devices that outputs a current proportional to absolute temperature. It covers a local sensing range of -25°C to 105°C with a typical accuracy of ±1°C at 25°C, making it a direct-fit choice for temperature monitoring in industrial controls, HVAC systems, and instrumentation where a linear current signal simplifies interface design. The sensor runs on a 4V to 30V supply, which means it can be powered from a standard 5V logic rail, a 12V industrial bus, or a 24V loop supply without an extra regulator. The output is a ratiometric current — typically 1 µA per Kelvin — so a simple resistor to ground converts it to a voltage for any ADC input. Housed in a TO-92-3 through-hole package, the AD592BNZ is easy to mount on a PCB or attach to a heat sink with epoxy.
Accuracy grade: why the BNZ suffix matters
The AD592BNZ is rated at ±1°C at 25°C. The AD592ANZ sibling is specified at ±2.5°C at the same test condition.
This part can be specified for new designs and multi-year builds without a forced redesign cycle.