Overview
The LM4040A30IDBZT is a precision micropower shunt voltage reference from Texas Instruments. This device is part of the LM4040 series, known for its versatility and ease of use across a wide range of applications. The LM4040A30IDBZT is specifically designed to provide a fixed output voltage of 3V, making it ideal for systems requiring stable and accurate voltage references. 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.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3 | V |
| Output Voltage Tolerance | 0.1% (A Grade), 0.2% (B Grade), 0.5% (C Grade), 1.0% (D Grade) | % |
| Temperature Coefficient | 100 ppm/°C (A, B, C Grades), 150 ppm/°C (D Grade) | ppm/°C |
| Minimum Cathode Current | 45 μA (typical) | μA |
| Maximum Operating Current | 15 mA | mA |
| Output Noise | 35 μVRMS (typical) | μVRMS |
| Operating Temperature Range | –40°C to 85°C | °C |
| Package Type | SOT-23 (DBZ) | |
| Number of Pins | 3 |
Key Features
- Fixed output voltages of 3V with tight output tolerances and low temperature coefficient.
- Low output noise: 35 μVRMS typical.
- Wide operating current range: 45 μA typical to 15 mA.
- Stable with all capacitive loads; no output capacitor required.
- Available in extended temperature range: –40°C to 125°C for certain models.
- Low dynamic impedance and low noise.
- No external capacitors required for operation.
- Ideal for portable applications due to its low power consumption and small package size.
Applications
- Data-Acquisition Systems
- Energy Infrastructure
- Analog Input Module
- Field Transmitters
- Precision Audio
- Automotive Electronics
Q & A
- What is the output voltage of the LM4040A30IDBZT?
The output voltage of the LM4040A30IDBZT is 3V.
- What are the temperature coefficients for the LM4040 series?
The temperature coefficients range from 100 ppm/°C for A, B, and C grades to 150 ppm/°C for the D grade.
- What is the minimum cathode current required for the LM4040A30IDBZT?
The minimum cathode current is 45 μA (typical).
- Does the LM4040A30IDBZT require an external capacitor for operation?
No, the LM4040A30IDBZT is stable with all capacitive loads and does not require an external capacitor.
- What is the operating temperature range for the LM4040A30IDBZT?
The operating temperature range is –40°C to 85°C.
- What are some common applications for the LM4040 series?
Common applications include data-acquisition systems, energy infrastructure, analog input modules, field transmitters, precision audio, and automotive electronics.
- What package type is the LM4040A30IDBZT available in?
The LM4040A30IDBZT is available in a SOT-23 (DBZ) package.
- How many pins does the LM4040A30IDBZT have?
The LM4040A30IDBZT has 3 pins.
- What is the typical output noise of the LM4040A30IDBZT?
The typical output noise is 35 μVRMS.
- Is the LM4040A30IDBZT suitable for portable applications?
