規格
| 屬性 | 價值 |
| Package | Bulk |
| ProductStatus | Obsolete |
| ReferenceType | Shunt |
| OutputType | Fixed |
| Voltage-Output(Min/Fixed) | 2.5V |
| Current-Output | 15 mA |
| Tolerance | ±0.1% |
| TemperatureCoefficient | 100ppm/°C |
| Noise-10Hzto10kHz | 35µVrms |
| Current-Cathode | 65 µA |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | TO-236-3, SC-59, SOT-23-3 |
概述
Description
The LM4040AIM3-2.5 is a precision voltage reference device, often used in electronic applications requiring a stable and accurate voltage source. It provides a fixed output voltage of 2.5 volts, making it suitable for use in analog-to-digital converters, digital voltmeters, and other precision measurement equipment. The device is designed to offer low temperature coefficient and tight output tolerance, ensuring minimal variation in performance over a range of temperatures and input conditions.
This voltage reference comes in a small SOT-23 package, which is ideal for space-constrained applications. It features low dynamic impedance and low output noise, enhancing the overall performance of the systems it is integrated into. The LM4040AIM3-2.5 operates over a wide input voltage range and is known for its ease of use and reliability.
Overall, the LM4040AIM3-2.5 is valued for its precision, compact size, and efficiency, making it a popular choice for designers aiming for high accuracy in voltage reference applications.
This voltage reference comes in a small SOT-23 package, which is ideal for space-constrained applications. It features low dynamic impedance and low output noise, enhancing the overall performance of the systems it is integrated into. The LM4040AIM3-2.5 operates over a wide input voltage range and is known for its ease of use and reliability.
Overall, the LM4040AIM3-2.5 is valued for its precision, compact size, and efficiency, making it a popular choice for designers aiming for high accuracy in voltage reference applications.
Equivalent
The LM4040AIM3-2.5 is a precision voltage reference. Equivalent products include the TL431 (or TL431A) for adjustable precision shunt regulators, the REF192, and the ADR292 for fixed 2.5V voltage references. These alternatives can be found from manufacturers like Texas Instruments, Analog Devices, and other semiconductor companies. When choosing an equivalent, check specifications like output voltage, tolerance, temperature coefficient, and pin configuration to ensure compatibility.
Features
The LM4040AIM3-2.5 is a precision voltage reference device known for its accuracy and reliability. Key features include:
1. Output Voltage: Provides a fixed output voltage of 2.5V.
2. Precision: Offers high accuracy with a low temperature coefficient, ensuring minimal deviation across various temperatures.
3. Low Operating Current: Designed for low power consumption, making it suitable for battery-powered applications.
4. Wide Temperature Range: Operates effectively over a broad temperature range, typically from -40°C to +125°C.
5. Small Package: Available in a compact 3-pin SOT-23 package, facilitating use in space-constrained designs.
6. Stability: Exhibits excellent long-term stability and low noise, critical for precision applications.
7. Low Dynamic Impedance: Ensures minimal variation in output voltage with changes in load current.
8. Enhanced Protection: Includes built-in ESD protection for better reliability in various environments.
These features make the LM4040AIM3-2.5 ideal for use in precision instrumentation, data acquisition systems, and other applications requiring a reliable voltage reference.
1. Output Voltage: Provides a fixed output voltage of 2.5V.
2. Precision: Offers high accuracy with a low temperature coefficient, ensuring minimal deviation across various temperatures.
3. Low Operating Current: Designed for low power consumption, making it suitable for battery-powered applications.
4. Wide Temperature Range: Operates effectively over a broad temperature range, typically from -40°C to +125°C.
5. Small Package: Available in a compact 3-pin SOT-23 package, facilitating use in space-constrained designs.
6. Stability: Exhibits excellent long-term stability and low noise, critical for precision applications.
7. Low Dynamic Impedance: Ensures minimal variation in output voltage with changes in load current.
8. Enhanced Protection: Includes built-in ESD protection for better reliability in various environments.
These features make the LM4040AIM3-2.5 ideal for use in precision instrumentation, data acquisition systems, and other applications requiring a reliable voltage reference.
Pinout
The LM4040AIM3-2.5 is a precision micropower shunt voltage reference. It typically comes in a SOT-23-3 package, which has 3 pins. The function of these pins is as follows:
1. Pin 1 (Anode): This is the positive side where the input voltage is applied. It is connected to the cathode of the device for the operation of the reference.
2. Pin 2 (Cathode): This is the output pin that provides the reference voltage. For the LM4040AIM3-2.5, this reference voltage is 2.5 volts. The cathode is connected to the load or circuit requiring a stable reference voltage.
3. Pin 3 (No Connection/Not connected internally): This pin is typically not connected to the internal circuitry of the device and may be left unconnected on the PCB.
The LM4040 series is appreciated for its precision, low power consumption, and its ability to provide a stable reference voltage over a wide range of operating conditions.
1. Pin 1 (Anode): This is the positive side where the input voltage is applied. It is connected to the cathode of the device for the operation of the reference.
2. Pin 2 (Cathode): This is the output pin that provides the reference voltage. For the LM4040AIM3-2.5, this reference voltage is 2.5 volts. The cathode is connected to the load or circuit requiring a stable reference voltage.
3. Pin 3 (No Connection/Not connected internally): This pin is typically not connected to the internal circuitry of the device and may be left unconnected on the PCB.
The LM4040 series is appreciated for its precision, low power consumption, and its ability to provide a stable reference voltage over a wide range of operating conditions.
Manufacturer
The LM4040AIM3-2.5 is manufactured by Texas Instruments, a leading global semiconductor company. Texas Instruments (TI) specializes in the design and production of analog and embedded processing chips, which are essential components in electronic devices across a wide range of industries, including consumer electronics, automotive, industrial, and communications equipment. TI's operations encompass the development of integrated circuits and other semiconductor devices that help in converting, conditioning, and processing real-world signals for various applications. The company is known for its innovation and extensive portfolio of products, including amplifiers, data converters, power management products, and microcontrollers.
Application
The LM4040AIM3-2.5 is a precision voltage reference ideal for applications needing a stable and accurate voltage source. It is commonly used in data acquisition systems, analog-to-digital converters (ADCs), and digital-to-analog converters (DACs) for calibration purposes. Additionally, it can be found in power supplies, battery-operated devices, and instrumentation where precise voltage is crucial. Its low temperature coefficient and low noise make it suitable for precision measurements in medical equipment and sensitive sensor applications. The compact SOT-23 package further makes it ideal for portable devices and space-constrained electronic designs.
Package
The LM4040AIM3-2.5 is a precision voltage reference in a SOT-23 package. This compact surface-mount package is ideal for applications where space is limited, providing a 2.5V output with high accuracy and stability.
