Overview
The LM4040D25IDBZT is a precision micropower shunt voltage reference produced by Texas Instruments. This component is part of the LM4040 series, known for its versatility and ease of use in a wide range of applications. The LM4040D25IDBZT offers a fixed output voltage of 2.5V with a tolerance of ±1% and is characterized by its low temperature coefficient and low output noise. It is packaged in a space-saving SOT-23 (DBZ) package with 3 pins and operates over an ambient temperature range of –40°C to 85°C, with an extended range option up to 125°C for the LM4040xQ variants.
Key Specifications
| Parameter | Test Conditions | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage (VZ) | IZ = 100μA, 25°C | 2.5 | 2.5 | 2.5 | V |
| Reverse Breakdown Voltage Tolerance (ΔVZ) | IZ = 100μA, 25°C | 0 | -12 | 12 | mV |
| Minimum Cathode Current (IZ,min) | 25°C | 75 | 45 | 80 | μA |
| Average Temperature Coefficient (αVZ) | IZ = 10mA, 25°C | ±20 | ±20 | ±100 | ppm/°C |
| Output Noise | Typical | 35 | μVRMS | ||
| Operating Temperature Range | -40 to 85 | -40 | 85 | °C |
Key Features
- Fixed output voltages of 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V
- Tight output tolerances and low temperature coefficient
- Maximum tolerance of ±1% for D Grade
- Low output noise: 35µVRMS typical
- Wide operating current range: 45µA to 15mA
- Stable with all capacitive loads; no output capacitor required
- Available in extended temperature range: –40°C to 125°C for LM4040xQ variants
- Space-saving SOT-23 (DBZ) package with 3 pins
Applications
The LM4040D25IDBZT is suitable for a variety of applications, including precision voltage regulation, voltage monitoring, and calibration in industrial, automotive, and consumer electronics. Its low power consumption and small package size make it ideal for portable and battery-powered devices. Additionally, it can be used in data acquisition systems, medical devices, and any application requiring a stable and precise voltage reference.
Q & A
- What is the output voltage of the LM4040D25IDBZT?
The output voltage of the LM4040D25IDBZT is 2.5V. - What is the tolerance of the LM4040D25IDBZT?
The tolerance of the LM4040D25IDBZT is ±1%. - What is the operating temperature range of the LM4040D25IDBZT?
The operating temperature range of the LM4040D25IDBZT is –40°C to 85°C, with an extended range option up to 125°C for the LM4040xQ variants. - What is the minimum cathode current required for the LM4040D25IDBZT?
The minimum cathode current required for the LM4040D25IDBZT is 45µA. - Does the LM4040D25IDBZT require an external capacitor for operation?
No, the LM4040D25IDBZT does not require an external capacitor for operation and is stable with all capacitive loads. - What is the typical output noise of the LM4040D25IDBZT?
The typical output noise of the LM4040D25IDBZT is 35µVRMS. - In what package is the LM4040D25IDBZT available?
The LM4040D25IDBZT is available in a SOT-23 (DBZ) package with 3 pins. - What are some common applications of the LM4040D25IDBZT?
The LM4040D25IDBZT is commonly used in precision voltage regulation, voltage monitoring, and calibration in various industries including industrial, automotive, and consumer electronics. - How does the LM4040D25IDBZT handle temperature variations?
The LM4040D25IDBZT has a low temperature coefficient, ensuring stable output voltage over a wide range of temperatures. - Is the LM4040D25IDBZT suitable for portable devices?
Yes, the LM4040D25IDBZT is suitable for portable devices due to its low power consumption and small package size.
