Overview
The LM336Z25XA integrated circuit, produced by onsemi, is a precision 2.5 V shunt regulator. This monolithic IC voltage reference operates as a low temperature coefficient 2.5 V Zener with a dynamic impedance of 0.2 Ω. The device features a third terminal that allows the reference voltage and temperature coefficient to be trimmed, making it highly versatile for various applications. Although the LM336Z25XA is currently obsolete and not in production, it remains a valuable reference for its historical and technical significance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage | 2.49 V (Typical) | V |
| Temperature Coefficient | 4 mV (Typical) | mV |
| Dynamic Impedance | 0.2 Ω | Ω |
| Initial Tolerance | 1.0 % | % |
| Operating Temperature Range | 0 ~ +70 °C | °C |
| Storage Temperature Range | -60 ~ +150 °C | °C |
| Reverse Current | 15 mA | mA |
| Forward Current | 10 mA | mA |
| Package Type | TO-92-3 |
Key Features
- Low Temperature Coefficient: Ensures stable operation over a range of temperatures.
- Guaranteed Temperature Stability: Typical temperature stability of 4 mV.
- Dynamic Impedance: 0.2 Ω, which is beneficial for maintaining voltage stability.
- Initial Tolerance: Available with 1.0% initial tolerance.
- Trimming Capability: The third terminal allows for trimming the reference voltage and temperature coefficient for minimum temperature drift.
- Versatile Usage: Can be used as either a positive or negative voltage reference.
Applications
The LM336Z25XA is useful in various applications, including:
- Digital Voltmeters: Provides a stable reference voltage.
- Power Supplies: Ensures consistent voltage regulation.
- OP-AMP Circuitry: Offers a reliable reference voltage for operational amplifier circuits.
Q & A
- What is the reference voltage of the LM336Z25XA?
The reference voltage is 2.49 V (typical). - What is the temperature coefficient of the LM336Z25XA?
The temperature coefficient is 4 mV (typical). - What is the dynamic impedance of the LM336Z25XA?
The dynamic impedance is 0.2 Ω. - What is the initial tolerance of the LM336Z25XA?
The initial tolerance is 1.0%. - What is the operating temperature range of the LM336Z25XA?
The operating temperature range is 0 ~ +70 °C. - Can the LM336Z25XA be used as both a positive and negative voltage reference?
Yes, it can be used as both a positive and negative voltage reference. - Why is the LM336Z25XA useful in digital voltmeters and power supplies?
It provides a stable and precise reference voltage, which is crucial for accurate measurements and consistent power regulation. - Is the LM336Z25XA still in production?
No, the LM336Z25XA is obsolete and not in production. - What package type does the LM336Z25XA come in?
The LM336Z25XA comes in a TO-92-3 package. - Can the temperature coefficient of the LM336Z25XA be trimmed?
Yes, the third terminal allows for trimming the reference voltage and temperature coefficient.
