Part A
AD584TH/883B
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 6796 個数
- Package
- TO-99
- Series
- PMIC - 電圧リファレンス
Replacement verdict
Compatible functional replacement candidate
The AD584TH/883B and AD584LH are functionally compatible precision voltage references sharing the same core architecture, pinout, and package, making them viable substitutes in most designs. The primary distinction lies in the military-grade screening and temperature performance of the TH/883B variant versus the standard industrial-grade LH version, so selection should be driven by the application's environmental and reliability requirements.
Package Type
High match
Output Voltage Options
High match
Operating Temperature Range
Validation required
Screening 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 | AD584TH/883B | AD584LH | Why it matters |
|---|---|---|---|
| Initial Accuracy (Output Voltage Tolerance) | ±0.05% max (10.000 V ±5 mV) | ±0.05% max (10.000 V ±5 mV) | Determines the absolute output voltage error at 25°C; tighter tolerance reduces system calibration effort. |
| Temperature Coefficient | 5 ppm/°C max (T grade) | 5 ppm/°C max (L grade) | Governs output drift over temperature; critical for precision references operating across wide temperature ranges. |
| Operating Temperature Range | −55°C to +125°C (military/883B) | −55°C to +125°C | Defines the ambient range over which specified accuracy is guaranteed; military screening extends qualified use. |
| Qualification / Screening | MIL-STD-883B compliant (QML) | Standard industrial/commercial grade | 883B parts are screened and qualified for military/aerospace reliability; LH parts are not, affecting high-reliability applications. |
| Package | TO-99 (metal can), 8-pin | TO-99 (metal can), 8-pin | Package affects thermal behavior, board footprint, and mounting; identical packages allow drop-in substitution. |
| Output Voltage Options | Pin-programmable: 10.000 V, 7.500 V, 5.000 V, 2.500 V | Pin-programmable: 10.000 V, 7.500 V, 5.000 V, 2.500 V | Multiple selectable outputs allow one part to serve several reference needs without additional components. |
| Long-Term Stability | ~25 ppm/1000 hr (typical) | ~25 ppm/1000 hr (typical) | Indicates reference drift over time; important for long-life instrumentation requiring periodic recalibration avoidance. |
| Supply Voltage Range | +4.5 V to +30 V | +4.5 V to +30 V | Determines compatibility with system power rails; wide range supports both 5 V and higher-voltage designs. |
| Output Current Capability | Sinks/sources up to 10 mA | Sinks/sources up to 10 mA | Defines load-driving capability; sufficient for ADC references and light external loads. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD584TH/883B | AD584LH |
|---|---|---|
| Part Status | Active | Obsolete |
| Mounting Type | Through Hole | Through Hole |
| Series | Military, MIL-STD-883 | - |
| Reference Type | Series | - |
| Output Type | Programmable | - |
| Voltage - Output (Min/Fixed) | 2.5V, 5V, 7.5V, 10V | - |
| Current - Output | 10 mA | - |
| Tolerance | ±0.14% | - |
| Temperature Coefficient | 20ppm/°C | - |
| Noise - 01 Hzto10 Hz | 50µVp-p | - |
| Voltage - Input | 4.5V ~ 30V | - |
| Supply Current | 1mA | - |
| Operating Temperature | -55°C ~ 125°C (TA) | - |
Frequently asked questions
What are the key differences between the AD584TH/883B and the AD584LH?
The AD584TH/883B is a military-grade, QML Class V (MIL-PRF-38535) screened voltage reference in a TO-99 metal can, specified over the −55°C to +125°C temperature range. The AD584LH is an industrial-grade version in a TO-99 metal can specified over 0°C to +70°C. Both share the same core 10.000 V precision reference architecture with pin-programmable 10.000 V, 7.500 V, 5.000 V, and 2.500 V outputs, but differ in screening, temperature grade, and guaranteed specifications.
Are the AD584TH/883B and AD584LH electrically and functionally interchangeable?
Functionally, both devices provide the same pin-programmable output voltages (10.000 V, 7.500 V, 5.000 V, 2.500 V) and use the same TO-99 package pinout, so they are pin-compatible. However, they are not specification-equivalent: the TH/883B is guaranteed over the full military temperature range with QML Class V screening, while the LH is guaranteed only over 0°C to +70°C. Substitution is acceptable only where the application's temperature range and reliability requirements are satisfied by the LH grade.
What is the difference in temperature range and screening between the two grades?
The AD584TH/883B is specified over −55°C to +125°C and is processed to MIL-PRF-38535 QML Class V requirements, including 100% screening and qualification testing per the 883B military standard. The AD584LH is specified over 0°C to +70°C and is a standard industrial-grade device without military screening. Designs requiring operation below 0°C or above +70°C must use the TH/883B grade.
Do both parts offer the same output voltage options and accuracy grades?
Yes. Both the AD584TH/883B and AD584LH are members of the AD584 family and provide the same selectable output voltages of 10.000 V, 7.500 V, 5.000 V, and 2.500 V via pin strapping. Both are available in the same accuracy classes (J, K, L, M, S, T) with corresponding initial accuracy and temperature coefficient specifications; the TH/883B designation reflects the military screening and temperature grade rather than a different output configuration.
Can the AD584LH be used as a drop-in replacement for the AD584TH/883B in an existing military design?
Not without qualification. Although the TO-99 package and pinout are the same, the AD584LH is only guaranteed over 0°C to +70°C and lacks the QML Class V screening of the TH/883B. In a military or aerospace design requiring −55°C to +125°C operation or 883B screening, the LH grade does not meet the specified requirements and should not be substituted without formal engineering change approval and re-qualification.
What package type do the AD584TH/883B and AD584LH use?
Both devices are supplied in the TO-99 hermetic metal can package (8-pin). The TO-99 package provides a hermetic seal suitable for high-reliability and military applications, and both grades share the same pinout, which is why they are physically interchangeable at the board level.
Which grade should be selected for a design operating from −40°C to +85°C?
Neither grade is specified over the full −40°C to +85°C range: the AD584LH is limited to 0°C to +70°C, and the AD584TH/883B is specified over −55°C to +125°C. For a −40°C to +85°C requirement, the AD584TH/883B is the appropriate choice because its guaranteed temperature range covers the entire operating window, whereas the LH grade does not.
Are the AD584TH/883B and AD584LH RoHS compliant?
Both devices are housed in the hermetic TO-99 metal can package, which is a non-plastic, lead-frame-free package. RoHS compliance status should be confirmed against the specific manufacturer datasheet and ordering code, as the military-screened TH/883B grade is typically ordered under military part numbering that may not carry commercial RoHS declarations. Designers should verify the exact ordering part number's compliance documentation before assuming RoHS status.