Part A
AD590MF
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 5163 個数
- Package
- CFLATPACK-2
- Series
- 温度センサー - アナログおよびデジタル出力
Replacement verdict
Compatible functional replacement candidate
The AD590MF is a functionally compatible replacement candidate for the AD590JF, sharing the same temperature-to-current output topology, supply range, and package footprint, with the MF grade offering a tighter calibration tolerance that may reduce system-level trim effort. Validation of grade-specific accuracy over the target operating range is recommended before production release.
Output Type
High match
Package Type
High match
Supply Voltage Range
High match
Accuracy Grade
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 | AD590JF | AD590MF | Why it matters |
|---|---|---|---|
| Temperature Accuracy (Grade) | J Grade: ±2.5°C max error (at 25°C) | M Grade: ±0.5°C max error (at 25°C) | The M grade offers a five-fold tighter calibration tolerance, which is critical for precision temperature sensing where absolute accuracy directly affects system performance. |
| Operating Temperature Range | -55°C to +150°C (J grade) | -55°C to +150°C (M grade) | Both grades share the same wide military-grade temperature range, so environmental operating limits are not a differentiator between these two parts. |
| Output Current Sensitivity | 1 µA/K | 1 µA/K | The 1 µA/K transfer function is identical, meaning both devices produce the same output current for a given temperature and are interchangeable in the signal chain. |
| Supply Voltage Range | +4 V to +30 V | +4 V to +30 V | Identical supply range means both parts can be dropped into the same rail configuration without redesign of the power section. |
| Calibration Error at 25°C | ±2.5°C max | ±0.5°C max | Initial calibration error determines whether the sensor can be used without individual trimming; the M grade is preferred for high-accuracy applications. |
| Nonlinearity | ±0.3°C max (full range) | ±0.3°C max (full range) | Matching nonlinearity specifications mean both grades behave equivalently across temperature, so linearity is not a selection criterion between them. |
| Package | 2-pin TO-52 (metal can) | 2-pin TO-52 (metal can) | Identical hermetic TO-52 package ensures the same footprint, thermal path, and mechanical fit, allowing direct board-level substitution. |
| Long-Term Stability | ±0.1°C (typical, long-term drift) | ±0.1°C (typical, long-term drift) | Equivalent long-term drift means both parts maintain accuracy over time similarly, so aging is not a differentiator. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD590MF | AD590JF |
|---|---|---|
| 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 | ±5°C |
| Test Condition | 25°C | 25°C |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the primary difference between the AD590JF and AD590MF?
The main difference is the specified accuracy grade and operating temperature range. The AD590JF is a commercial-grade current output temperature transducer with a specified linearity error of ±0.5°C over its rated temperature range, while the AD590MF is a military-grade version with a tighter linearity error of ±0.3°C and a wider specified operating temperature range of −55°C to +150°C.
What is the specified operating temperature range for the AD590JF versus the AD590MF?
The AD590JF is specified over the commercial temperature range of 0°C to +70°C. The AD590MF is specified over the extended military temperature range of −55°C to +150°C, making it suitable for harsher environments.
Are the AD590JF and AD590MF pin-compatible and package-compatible?
Yes. Both the AD590JF and AD590MF are offered in the same hermetic TO-52 (metal can) package with identical pin assignments: pin 1 is +V, pin 2 is −V, and pin 3 is the case. This allows them to share the same PCB footprint and land pattern.
What is the output characteristic of the AD590JF and AD590MF?
Both devices are two-terminal current-output temperature transducers that produce an output current proportional to absolute temperature at a nominal scale factor of 1 µA/K. At +25°C (298.15 K), the nominal output current is approximately 298.2 µA.
What supply voltage range do the AD590JF and AD590MF require?
Both devices operate over a supply voltage range of +4 V to +30 V. The output current is essentially independent of the supply voltage within this range, which is a key feature of the AD590 series.
Can the AD590MF be used as a direct replacement for the AD590JF?
Yes, the AD590MF is form, fit, and function compatible with the AD590JF and can be used as a direct replacement. The AD590MF offers tighter linearity and a wider operating temperature range, so it exceeds the AD590JF specifications, though the AD590MF is typically a higher-cost military-grade part.
What is the linearity specification for the AD590JF and AD590MF?
The AD590JF has a specified linearity error of ±0.5°C maximum over its rated temperature range. The AD590MF has a tighter specified linearity error of ±0.3°C maximum over its extended −55°C to +150°C range.
Do the AD590JF and AD590MF require external calibration or trimming?
Both devices are factory-trimmed for a nominal 1 µA/K output at +25°C, but the absolute accuracy at +25°C is specified as ±5°C for the J grade and ±5°C for the M grade before user trimming. External trimming of the output current is typically required for absolute temperature accuracy, while the linearity specification applies without trimming.