Overview
The LM4041DIDBZRG4 is a precision micropower shunt voltage reference from Texas Instruments. This component is part of the LM4041 series, which is designed to offer high accuracy and stability over a wide range of operating conditions. The LM4041DIDBZRG4 is available in a fixed output voltage of 1.225V and is characterized by its tight output tolerances and low temperature coefficient, making it suitable for various precision applications.
Key Specifications
| Parameter | Test Conditions | Unit | MIN | TYP | MAX |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage (VZ) | IZ = 100μA, 25°C | V | 1.225 | 1.225 | 1.225 |
| Reverse Breakdown Voltage Tolerance | 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 | ±100 |
| Wideband Noise (eN) | IZ = 100μA, VZ = VREF, 10Hz ≤ f ≤ 10kHz, 25°C | μVRMS | 20 | 20 | - |
| Operating Temperature Range | - | °C | -40 | - | 85 |
| Package Type | - | - | - | - | DBZ (SC-70) |
Key Features
- Fixed and adjustable output voltages (1.225V to 10V)
- Tight output tolerances: 0.1% (A grade), 0.2% (B grade), 0.5% (C grade), and 1.0% (D grade)
- Low temperature coefficient: ±20 ppm/°C (A grade), ±100 ppm/°C (D grade)
- Low output noise: 20μVRMS (typical)
- Wide operating current range: 45μA (typical) to 12mA
- Stable with all capacitive loads; no output capacitor required
- Available in industrial and extended temperature ranges: -40°C to 85°C and -40°C to 125°C
- Space-saving packages: SC-70, SOT-23-3, and TO-92 for through-hole applications
Applications
- Data-Acquisition Systems
- Power Supplies and Power-Supply Monitors
- Instrumentation and Test Equipment
- Process Control
- Precision Audio
- Automotive Electronics
- Energy Management/Metering
- Battery-Powered Equipment
Q & A
- What is the typical output voltage of the LM4041DIDBZRG4?
The typical output voltage is 1.225V.
- What are the temperature ranges for the LM4041DIDBZRG4?
The component is characterized for operation over an ambient temperature range of -40°C to 85°C.
- What is the minimum cathode current required for the LM4041DIDBZRG4?
The minimum cathode current is 45μA (typical).
- Does the LM4041DIDBZRG4 require an external capacitor for operation?
No, it is stable with all capacitive loads and does not require an external capacitor.
- What are the available packages for the LM4041DIDBZRG4?
The component is available in SC-70, SOT-23-3, and TO-92 packages.
- What is the typical wideband noise of the LM4041DIDBZRG4?
The typical wideband noise is 20μVRMS.
- What are the key applications of the LM4041DIDBZRG4?
Key applications include data-acquisition systems, power supplies, instrumentation, process control, precision audio, automotive electronics, energy management, and battery-powered equipment.
- How is the output voltage tolerance specified for the LM4041DIDBZRG4?
The output voltage tolerance for the D grade is ±1.0%.
- What is the average temperature coefficient of the reverse breakdown voltage for the LM4041DIDBZRG4?
The average temperature coefficient is ±20 ppm/°C (at 10mA) and ±100 ppm/°C (full range).
- Can the LM4041DIDBZRG4 be used in high-temperature environments?
Yes, it is available in an extended temperature range of -40°C to 125°C (LM4041xQ versions).
