AD590: Two Terminal IC Temperature Transducer
The AD590 is a two-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 298.2K (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.
In addition to temperature measurement, applications include temperature compensation or correction of discrete components, biasing proportional to absolute temperature, flow rate measurement, level detection of fluids and anemometry. The AD590 is available in chip form making, it suitable for hybrid circuits and fast temperature measurements in protected environments.
The AD590 is particularly useful in remote sensing applications. The device is insensitive to voltage drops over long lines due to its high impedance current output. Any well insulated twisted pair is sufficient for operation hundreds of feet from the receiving circuitry. The output characteristics also make the AD590 easy to multiplex: the current can be switched by a CMOS multiplexer or the supply voltage can be switched by a logic gate output.
AD590 特点
- 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
- Low cost
AD590 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| 5962-8757101XA | 量产 | 2 ld Flat Pack | 2 | 军用 |
| 5962-8757101YA | 量产 | 3 ld TO-52 | 3 | 军用 |
| 5962-8757102XA | 量产 | 2 ld Flat Pack | 2 | 军用 |
| 5962-8757102YA | 量产 | 3 ld TO-52 | 3 | 军用 |
| 5962-8757103XA | 量产 | 2 ld Flat Pack | 2 | 军用 |
| 5962-8757103YA | 量产 | 3 ld TO-52 | 3 | 军用 |
| 5962-8757104XA | 量产 | 2 ld Flat Pack | 2 | 军用 |
| 5962-8757104YA | 量产 | 3 ld TO-52 | 3 | 军用 |
| AD590JCHIPS | 量产 | CHIPS OR DIE | - | 军用 |
| AD590JF | 量产 | 2 ld Flat Pack | 2 | 军用 |
| AD590JF/883B | 量产 | 2 ld Flat Pack | 2 | 军用 |
| AD590JH | 量产 | 3 ld TO-52 | 3 | 军用 |
| AD590JH/883B | 量产 | 3 ld TO-52 | 3 | 军用 |
| AD590JR | 量产 | 8 ld SOIC | 8 | 军用 |
| AD590JRZ | 量产 | 8 ld SOIC | 8 | 军用 |
| AD590JRZ-RL | 量产 | 8 ld SOIC | 8 | 军用 |
| AD590KF | 量产 | 2 ld Flat Pack | 2 | 军用 |
| AD590KF/883B | 量产 | 2 ld Flat Pack | 2 | 军用 |
| AD590KH | 量产 | 3 ld TO-52 | 3 | 军用 |
| AD590KH/883B | 量产 | 3 ld TO-52 | 3 | 军用 |
| AD590KR | 量产 | 8 ld SOIC | 8 | 军用 |
| AD590KR-REEL | 量产 | 8 ld SOIC | 8 | 军用 |
| AD590KRZ | 量产 | 8 ld SOIC | 8 | 军用 |
| AD590KRZ-RL | 量产 | 8 ld SOIC | 8 | 军用 |
| AD590LF | 量产 | 2 ld Flat Pack | 2 | 军用 |
| AD590LF/883B | 量产 | 2 ld Flat Pack | 2 | 军用 |
| AD590LH | 量产 | 3 ld TO-52 | 3 | 军用 |
| AD590LH/883B | 量产 | 3 ld TO-52 | 3 | 军用 |
| AD590MF | 量产 | 2 ld Flat Pack | 2 | 军用 |
| AD590MF/883B | 量产 | 2 ld Flat Pack | 2 | 军用 |
| AD590MH | 量产 | 3 ld TO-52 | 3 | 军用 |
| AD590MH/883B | 量产 | 3 ld TO-52 | 3 | 军用 |
AD590 应用技术支持与电子电路设计开发资源下载
- AD590 数据手册DataSheet 下载 . PDF
- ADI 模拟器件公司比较器产品选型指南 . PDF
- Analog Devices, Inc. 美国模拟器件公司产品订购手册 .PDF