8 Lead SOIC AD590LH Temperature Sensor Chip IC Through Hole

Product Description

AD590LH Board Mount Temperature Sensors Transducer IC

2-Terminal IC Temperature Transducer

FEATURES

• Linear current output: 1 μA/K

•Wide temperature range: −55°C to +150°C

•Probe-compatible ceramic sensor package

•2-terminal device: voltage in/current out

•Laser trimmed to ±0.5°C calibration accuracy (AD590M)

•Excellent linearity: ±0.3°C over full range (AD590M)

•Wide power supply range: 4 V to 30 V

•Sensor isolation from case

•Available in 2-lead FLATPACK, 4-lead LFCSP, 3-pin TO-52, 8-lead SOIC, and die form

GENERAL DESCRIPTION

The AD590 is a 2-terminal integrated circuit temperature transducer that produces an output current proportional to absolute temperature. For supply voltages between 4 V and 30 V, the device acts as a high impedance, constant current regulator passing 1 μA/K. Laser trimming of the chip’s thin-film resistors is used to calibrate the device to 298.2 μA output at 298.2 K (25°C). The AD590 should be used in any temperature-sensing application below 150°C in which conventional electrical temperature sensors are currently employed. The inherent low cost of a monolithic integrated circuit combined with the elimination of support circuitry makes the AD590 an attractive alternative for many temperature measurement situations. Linearization circuitry, precision voltage amplifiers, resistance measuring circuitry, and cold junction compensation are not needed in applying the AD590.