Overview
The LM4040D25QDBZRG4 is a precision micropower shunt voltage reference produced by Texas Instruments. This device is part of the LM4040 series, known for its high accuracy and stability over a wide range of operating conditions. The LM4040D25QDBZRG4 offers a fixed output voltage of 2.5V, making it suitable for various applications requiring a stable voltage reference.
The device is packaged in a space-saving SOT-23-3 package, which is ideal for portable and compact designs. It operates over an extended temperature range of –40°C to 125°C, ensuring reliability in diverse environmental conditions.
Key Specifications
| Parameter | Test Conditions | Unit | MIN | TYP | MAX |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage (VZ) | IZ = 100μA, 25°C | V | 2.5 | 2.5 | 2.5 |
| Reverse Breakdown Voltage Tolerance (ΔVZ) | IZ = 100μA, 25°C | mV | –12 | 0 | 12 |
| Minimum Cathode Current (IZ,min) | 25°C | μA | 45 | 75 | 80 |
| Average Temperature Coefficient of Reverse Breakdown Voltage (αVZ) | IZ = 10mA, 25°C | ppm/°C | ±20 | ±20 | ±150 |
| Operating Temperature Range (TA) | °C | –40 | 125 | ||
| Package | SOT-23-3 (DBZ) |
Key Features
- Fixed output voltage of 2.5V with tight output tolerances and low temperature coefficient.
- No external capacitors required for operation; stable with all capacitive loads.
- Low dynamic impedance, low noise, and low temperature coefficient ensure stable output voltage over a wide range of operating currents and temperatures.
- Available in space-saving SOT-23-3 and SC-70 packages, ideal for portable applications.
- Minimum cathode current of 45μA (typical) and maximum of 80μA.
- Operates over an extended temperature range of –40°C to 125°C.
Applications
- Portable electronic devices due to its low power consumption and compact packaging.
- Industrial control systems requiring stable voltage references.
- Aerospace and automotive applications where high reliability over a wide temperature range is crucial.
- Medical devices that demand precise voltage references.
- General-purpose voltage reference in various electronic circuits.
Q & A
- What is the output voltage of the LM4040D25QDBZRG4?
The output voltage of the LM4040D25QDBZRG4 is 2.5V.
- What is the operating temperature range of the LM4040D25QDBZRG4?
The operating temperature range is –40°C to 125°C.
- Does the LM4040D25QDBZRG4 require external capacitors for operation?
No, the LM4040D25QDBZRG4 does not require external capacitors for operation and is stable with all capacitive loads.
- What is the minimum cathode current of the LM4040D25QDBZRG4?
The minimum cathode current is 45μA (typical).
- What package types are available for the LM4040 series?
The LM4040 series is available in SOT-23-3 and SC-70 packages.
- What is the average temperature coefficient of the reverse breakdown voltage?
The average temperature coefficient of the reverse breakdown voltage is ±20 ppm/°C at 25°C.
- Is the LM4040D25QDBZRG4 suitable for portable applications?
- What are the key benefits of using the LM4040D25QDBZRG4 in industrial applications?
The key benefits include high accuracy, low noise, and stability over a wide temperature range.
- Can the LM4040D25QDBZRG4 be used in medical devices?
- What is the typical dynamic impedance of the LM4040D25QDBZRG4?
The device has low dynamic impedance, ensuring stable output voltage under various operating conditions.
