Overview
The LM4040A30IDBZR is a precision micropower shunt voltage reference produced by Texas Instruments. This component is part of the LM4040 series, which offers a versatile and easy-to-use voltage reference solution. The LM4040A30IDBZR is specifically designed to provide a fixed output voltage of 3V with high accuracy and stability. It is packaged in a space-saving SOT-23 (DBZ) package with 3 pins, making it ideal for a wide range of applications, including portable devices, data-acquisition systems, and precision audio equipment. The device operates over an ambient temperature range of –40°C to 85°C and requires a minimum current of 45µA, making it suitable for low-power applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3V | 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 | 45µA (typical) | µA |
| Maximum Operating Current | 15mA | mA |
| Output Noise | 35µVRMS (typical) | µVRMS |
| Operating Temperature Range | –40°C to 85°C (LM4040xI), –40°C to 125°C (LM4040xQ) | °C |
| Package Type | SOT-23 (DBZ) | |
| Number of Pins | 3 |
Key Features
- Fixed output voltages of 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V, with the LM4040A30IDBZR specifically providing 3V.
- Tight output tolerances and low temperature coefficient, ranging from 0.1% to 1.0% depending on the grade.
- Low output noise: 35µVRMS typical.
- Wide operating current range: 45µA typical to 15mA.
- Stable with all capacitive loads; no output capacitor required.
- Available in extended temperature range: –40°C to 125°C for certain grades.
- Space-saving SOT-23 and SC-70 packages, ideal for portable applications.
Applications
- Data-Acquisition Systems
- Energy Infrastructure
- Analog Input Module
- Field Transmitters
- Precision Audio
- Automotive Electronics
Q & A
- What is the output voltage of the LM4040A30IDBZR? The output voltage of the LM4040A30IDBZR 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 operating current for the LM4040A30IDBZR? The minimum operating current is 45µA typical.
- Does the LM4040A30IDBZR require an external capacitor for operation? No, the LM4040A30IDBZR is stable with all capacitive loads and does not require an external capacitor.
- What are the available output voltages for the LM4040 series? The LM4040 series offers fixed output voltages of 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V.
- What is the operating temperature range for the LM4040A30IDBZR? The operating temperature range is –40°C to 85°C for the LM4040xI grade and –40°C to 125°C for the LM4040xQ grade.
- What package types are available for the LM4040 series? The LM4040 series is available in SOT-23 and SC-70 packages.
- 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.
- How much noise does the LM4040A30IDBZR typically produce? The LM4040A30IDBZR typically produces 35µVRMS of output noise.
- What is the maximum operating current for the LM4040A30IDBZR? The maximum operating current is 15mA.
