Overview
The LM4040B25IDBZR 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 LM4040B25IDBZR specifically provides a fixed output voltage of 2.5V with a tight tolerance of ±0.2%. It is designed to operate with minimal current requirements, making it ideal for portable and low-power applications.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Output Voltage | Fixed output voltage | 2.5V |
| Output Voltage Tolerance | Maximum tolerance at 25°C | ±0.2% (±5mV) |
| Minimum Cathode Current | Minimum current required for operation | 45μA (typical), 80μA (maximum) |
| Temperature Coefficient | Average temperature coefficient of reverse breakdown voltage | ±15 ppm/°C (at IZ = 1mA), ±100 ppm/°C (full range) |
| Operating Temperature Range | Ambient temperature range for operation | –40°C to 85°C (I grade), –40°C to 125°C (Q grade) |
| Package | Package type and size | SOT-23-3, 2.92mm × 1.30mm |
| Dynamic Impedance | Low dynamic impedance for stable output | Low dynamic impedance |
| Noise | Low noise characteristics | Low noise |
Key Features
- High Accuracy: The LM4040B25IDBZR offers tight output voltage tolerances, with a maximum tolerance of ±0.2% at 25°C.
- Low Temperature Coefficient: The device has a low average temperature coefficient of reverse breakdown voltage, ensuring stable output over a wide temperature range.
- Low Dynamic Impedance and Noise: It features low dynamic impedance and low noise, contributing to its stability and reliability.
- No External Capacitors Required: The LM4040B25IDBZR does not require external capacitors for operation and is stable with all capacitive loads.
- Space-Saving Package: Available in the compact SOT-23-3 package, making it suitable for space-constrained applications.
- Low Power Consumption: The device operates with a minimum current of 45μA, ideal for portable and low-power applications.
Applications
- Portable Electronics: Due to its low power consumption and compact package, it is well-suited for portable electronic devices such as handheld instruments and battery-powered equipment.
- Industrial Automation: The high accuracy and stability of the LM4040B25IDBZR make it a reliable choice for industrial automation systems and control circuits.
- Medical Devices: Its precision and low noise characteristics are beneficial in medical devices that require stable voltage references.
- Aerospace and Defense: The device's ability to operate over a wide temperature range and its high reliability make it suitable for aerospace and defense applications.
Q & A
- What is the output voltage of the LM4040B25IDBZR?
The output voltage of the LM4040B25IDBZR is 2.5V.
- What is the output voltage tolerance of the LM4040B25IDBZR?
The output voltage tolerance is ±0.2% (±5mV) at 25°C.
- What is the minimum cathode current required for the LM4040B25IDBZR to operate?
The minimum cathode current required is 45μA (typical), with a maximum of 80μA.
- What is the operating temperature range of the LM4040B25IDBZR?
The device operates over an ambient temperature range of –40°C to 85°C (I grade) and –40°C to 125°C (Q grade).
- Does the LM4040B25IDBZR require external capacitors for operation?
No, the LM4040B25IDBZR does not require external capacitors for operation and is stable with all capacitive loads.
- What package type and size is the LM4040B25IDBZR available in?
The device is available in the SOT-23-3 package, with dimensions of 2.92mm × 1.30mm.
- What are the key applications of the LM4040B25IDBZR?
The device is suitable for portable electronics, industrial automation, medical devices, and aerospace and defense applications due to its high accuracy, low power consumption, and wide operating temperature range).
- What is the dynamic impedance of the LM4040B25IDBZR?
The device features low dynamic impedance, which contributes to its stable output voltage).
- Is the LM4040B25IDBZR RoHS compliant?
- What is the typical operating current of the LM4040B25IDBZR?
The typical operating current is 75μA, with a minimum of 45μA and a maximum of 80μA).
