Part A
AD590MH
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 6424 個数
- Package
- TO-52-3
- 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 AD590MH is a functionally compatible replacement candidate for the AD590JH, sharing the same temperature-to-current output topology, package footprint, and supply range, with the MH grade offering a tighter linearity specification over the full military temperature range. Designers should confirm the tighter accuracy class and extended temperature grade align with their application requirements before substituting.
Output Type
High match
Package Type
High match
Operating Temperature 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 | AD590JH | AD590MH | Why it matters |
|---|---|---|---|
| Temperature Accuracy (Calibration Error at 25°C) | ±5.0°C max | ±0.5°C max | Determines the initial uncalibrated measurement error; the MH grade offers roughly 10x tighter accuracy, which is critical for precision sensing without individual trimming. |
| Grade / Accuracy Class | J grade (standard) | M grade (high accuracy) | The grade defines the guaranteed error budget and screening level; substituting a J for an M (or vice versa) changes system accuracy expectations. |
| Operating Temperature Range | -55°C to +150°C | -55°C to +150°C | Both cover the full military-grade range, so environmental capability is equivalent and not a differentiator for substitutability. |
| Nonlinearity | ±0.3°C max (over rated range) | ±0.3°C max (over rated range) | Nonlinearity sets the deviation from ideal output-versus-temperature slope; identical values mean linearity performance is the same across both grades. |
| Output Current Sensitivity | 1 µA/K | 1 µA/K | The 1 µA/K transfer function is the core interface characteristic; matching values ensures the same signal conditioning and readout circuitry can be reused. |
| Supply Voltage Range | +4 V to +30 V | +4 V to +30 V | Defines compatible power rails; identical ranges mean either part can drop into the same supply design. |
| Package | TO-52 (metal can) | TO-52 (metal can) | Footprint and thermal mounting must match for a drop-in replacement; identical packages allow direct board substitution. |
| Long-Term Drift | ±0.1°C max (per datasheet) | ±0.1°C max (per datasheet) | Drift affects stability over time; equal specifications indicate comparable long-term reliability for both grades. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD590MH | AD590JH |
|---|---|---|
| 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 | Through Hole | Through Hole |
Frequently asked questions
What is the primary difference between the AD590JH and AD590MH?
The main difference is the specified accuracy grade over the full operating temperature range. The AD590MH is a higher-grade version with tighter calibration and linearity error specifications compared to the AD590JH, making it suitable for applications requiring greater measurement precision.
What is the operating temperature range for the AD590JH and AD590MH?
Both the AD590JH and AD590MH are specified for the full military temperature range of -55°C to +150°C, allowing them to be used in harsh environments.
Are the AD590JH and AD590MH pin-compatible?
Yes, both devices are offered in the same hermetic TO-52 package (H package) and share the identical pinout, allowing them to be used interchangeably on the same PCB footprint.
What is the output characteristic of the AD590JH and AD590MH?
Both are two-terminal current-output temperature transducers that produce an output current proportional to absolute temperature, with a nominal scale factor of 1 µA/K.
What supply voltage range do the AD590JH and AD590MH require?
Both devices operate over a supply voltage range of +4 V to +30 V, providing flexibility in system power design.
Can the AD590MH be used as a direct replacement for the AD590JH?
Yes, the AD590MH is a drop-in replacement for the AD590JH in terms of package and pinout, and it offers improved accuracy specifications. The system should be validated to confirm that the tighter error limits meet the application requirements.
What are the calibration error specifications for the AD590JH and AD590MH?
The AD590JH has a specified calibration error of ±5.0°C at +25°C, while the AD590MH has a tighter calibration error of ±0.5°C at +25°C, reflecting its higher accuracy grade.