Part A
AD590MF/883B
ADI公司
- Lifecycle
- Active
- Stock
- 1524 件
- Package
- CFLATPACK-2
- Series
- 溫度感測器-類比和數位輸出
Replacement verdict
Compatible functional replacement candidate
The AD590MF/883B is a viable functional replacement candidate for the AD590KF, sharing the same temperature-to-current transduction principle, calibration accuracy class, and supply range, while offering superior guaranteed temperature performance and military-grade screening. Validation is recommended for package thermal behavior and long-term stability in the target application.
Output Type
High match
Calibration Accuracy
High match
Operating Temperature Range
Validation required
Package Type
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD590KF | AD590MF/883B | Why it matters |
|---|---|---|---|
| Temperature Coefficient (Sensitivity) | 1 µA/K | 1 µA/K | Defines the output current change per Kelvin; identical sensitivity allows direct functional substitution in temperature-to-current conversion circuits. |
| Calibration Error (at 25°C) | ±0.5°C (max) | ±0.5°C (max) | Determines absolute accuracy at room temperature; matching error specs means both parts meet the same initial accuracy budget. |
| Operating Temperature Range | -55°C to +150°C | -55°C to +150°C | Defines the environmental envelope; identical ranges ensure interchangeability across military and industrial temperature applications. |
| Nonlinearity | ±0.3°C (max, over full range) | ±0.3°C (max, over full range) | Affects accuracy across the temperature span; equal nonlinearity guarantees comparable performance in wide-range sensing. |
| Supply Voltage Range | +4 V to +30 V | +4 V to +30 V | Determines compatibility with system power rails; identical ranges allow drop-in replacement without supply redesign. |
| Output Current Range | 298.2 µA at 25°C (nominal) | 298.2 µA at 25°C (nominal) | Sets the absolute current at reference temperature; matching nominal output ensures identical signal scaling in readout circuitry. |
| Qualification / Screening | Commercial/industrial grade | MIL-STD-883B qualified | Indicates reliability screening level; the /883B suffix denotes full military screening, which matters for high-reliability and defense applications. |
| Package | TO-52 (metal can) | TO-52 (metal can) | Determines PCB footprint and thermal mounting; identical packages allow physical interchangeability. |
Need help validating a replacement?
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD590MF/883B | AD590KF |
|---|---|---|
| Part Status | Active | Active |
| Sensor Type | Analog, Local | Analog, Local |
| Sensing Temperature - Local | -55°C ~ 150°C | -55°C ~ 150°C |
| Output Type | Analog Current | Analog Current |
| Voltage - Supply | 4V ~ 30V | 4V ~ 30V |
| Accuracy - Highest(Lowest) | ±0.5°C | ±2.5°C |
| Test Condition | 25°C | 25°C |
| Operating Temperature | -55°C ~ 150°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the AD590KF and AD590MF/883B temperature transducers?
The AD590KF is a commercial-grade two-terminal current-output temperature transducer specified over the 0°C to +70°C temperature range, supplied in a TO-52 metal can. The AD590MF/883B is the military-grade version of the same transducer, specified over the full -55°C to +125°C operating temperature range and screened to MIL-STD-883B requirements. Both devices produce an output current of 1 µA/K and operate from a supply voltage of 4 V to 30 V.
Are the AD590KF and AD590MF/883B electrically interchangeable in an existing design?
Yes, both devices share the same functional architecture: a two-terminal current source with an output of 1 µA/K, a linearity error of ±0.5°C maximum (K grade) over the rated range, and a supply range of 4 V to 30 V. However, the AD590MF/883B is guaranteed and tested over the extended -55°C to +125°C range, whereas the AD590KF is specified only from 0°C to +70°C. Substitution is valid only when the application's operating temperature range falls within the K-grade limits.
What is the accuracy and linearity specification of the AD590KF versus the AD590MF/883B?
Both the AD590KF and AD590MF/883B are K-grade devices with a maximum nonlinearity of ±0.5°C over their respective specified temperature ranges. The AD590KF is calibrated at 25°C with a maximum error of ±0.5°C, while the AD590MF/883B is specified with the same ±0.5°C maximum calibration error at 25°C but is additionally tested and guaranteed across the full military temperature range of -55°C to +125°C.
What package and pin configuration do the AD590KF and AD590MF/883B use?
Both devices are supplied in the TO-52 hermetic metal can package with two terminals (plus case). The package is a three-pin TO-52 outline where the two active terminals are the current output and the positive supply; the case is electrically connected to the positive supply terminal. The AD590MF/883B is additionally marked and screened per MIL-STD-883B, but the physical package and pinout are identical to the AD590KF.
What supply voltage range is required for the AD590KF and AD590MF/883B?
Both devices operate from a supply voltage of 4 V to 30 V. The output current is nominally 1 µA/K, so at 25°C (298.15 K) the output is approximately 298.15 µA. The device is a current source, so the output current is independent of supply voltage variations within the specified 4 V to 30 V range, provided the voltage compliance of the output node is maintained.
Does the AD590MF/883B meet MIL-STD-883B screening requirements that the AD590KF does not?
Yes. The AD590MF/883B suffix "/883B" indicates that the device is processed and screened in accordance with MIL-STD-883B, Method 5004 (class B), which includes additional burn-in, temperature cycling, and electrical testing beyond the standard commercial flow used for the AD590KF. The AD590KF is a standard commercial grade and is not screened to MIL-STD-883B.
Can the AD590KF be used as a drop-in replacement for the AD590MF/883B in a military application?
No. The AD590KF is specified only over 0°C to +70°C and is not screened to MIL-STD-883B, so it does not meet the -55°C to +125°C operating range or the reliability screening requirements of the AD590MF/883B. For military or high-reliability applications requiring the extended temperature range and MIL-STD-883B qualification, the AD590MF/883B must be used.
What is the output current transfer function of the AD590KF and AD590MF/883B?
Both devices are two-terminal current-output transducers with a transfer function of 1 µA/K. The output current is proportional to absolute temperature, so at 0°C (273.15 K) the output is approximately 273.15 µA, at 25°C (298.15 K) approximately 298.15 µA, and at 100°C (373.15 K) approximately 373.15 µA. This transfer function is identical for both the AD590KF and AD590MF/883B.