仕様
| 属性 | 値 |
| Supplier | Texas Instruments |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Not For New Designs |
| Reference Type | Shunt |
| Output Type | Fixed |
| Voltage - Output (Min/Fixed) | 2.5V |
| Current - Output | 15 mA |
| Tolerance | ±0.1% |
| Temperature Coefficient | 50ppm/°C |
| Noise - 10 Hzto10k Hz | 41µVrms |
| Current - Cathode | 65 µA |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概要
Description
LM4050AIM3-2.5 is a fixed 2.5 V shunt voltage reference from the LM4050 family. The "A" grade and "IM3" denote the variant and the M3 package (SOT-23, 3-pin); “-2.5” confirms 2.5 V output.
Key points:
- Fixed 2.5 V reference, maintained by shunting excess current to ground.
- Low quiescent current, low dynamic impedance, good temperature stability.
- Designed for easy use as a precision reference in ADCs/DACs, instrumentation, and low-power regulators.
- Typically powered from a modest supply with a bias resistor from a higher rail; small, inexpensive package.
For exact electrical specs (voltage tolerance, temp coefficient, max cathode current, recommended bias current, and package dimensions), consult the TI datasheet for LM4050AIM3-2.5.
Key points:
- Fixed 2.5 V reference, maintained by shunting excess current to ground.
- Low quiescent current, low dynamic impedance, good temperature stability.
- Designed for easy use as a precision reference in ADCs/DACs, instrumentation, and low-power regulators.
- Typically powered from a modest supply with a bias resistor from a higher rail; small, inexpensive package.
For exact electrical specs (voltage tolerance, temp coefficient, max cathode current, recommended bias current, and package dimensions), consult the TI datasheet for LM4050AIM3-2.5.
Equivalent
LM4050AIM3-2.5 is a 2.5 V precision shunt reference. Equivalents (2.5 V shunt references) include:
- LM4050-2.5 (same TI family, other package)
- LM336-2.5 (National/TI)
- ADR4525-2.5 (Analog Devices)
- TL431 family (2.495 V, adjustable; used as a 2.5 V substitute in some designs)
Note: pinout and characteristics vary; verify datasheets for your design.
- LM4050-2.5 (same TI family, other package)
- LM336-2.5 (National/TI)
- ADR4525-2.5 (Analog Devices)
- TL431 family (2.495 V, adjustable; used as a 2.5 V substitute in some designs)
Note: pinout and characteristics vary; verify datasheets for your design.
Features
Here are the key features of LM4050AIM3-2.5:
- Fixed 2.5 V shunt reference
- Micropower operation with very low quiescent current
- Wide supply range suitable for battery-powered designs
- Low dynamic impedance for solid regulation
- Good line and load regulation; stable across temperature
- Small 3-pin SOT-23 package (AIM3)
- Industrial temperature range (-40°C to +125°C)
- Simple, resistor-free implementation (no external components needed for fixed output)
Note: Always consult the datasheet for exact electrical specs and package details.
- Fixed 2.5 V shunt reference
- Micropower operation with very low quiescent current
- Wide supply range suitable for battery-powered designs
- Low dynamic impedance for solid regulation
- Good line and load regulation; stable across temperature
- Small 3-pin SOT-23 package (AIM3)
- Industrial temperature range (-40°C to +125°C)
- Simple, resistor-free implementation (no external components needed for fixed output)
Note: Always consult the datasheet for exact electrical specs and package details.
Pinout
- Pin count: 3 pins (SC-70/SOT-23-3 style package).
- Function: Fixed 2.5 V shunt voltage reference. It clamps the cathode-to-anode voltage at ~2.5 V; anode is typically tied to ground, cathode provides the reference output; the third pin is usually not connected.
- Function: Fixed 2.5 V shunt voltage reference. It clamps the cathode-to-anode voltage at ~2.5 V; anode is typically tied to ground, cathode provides the reference output; the third pin is usually not connected.
Manufacturer
- Manufacturer: Texas Instruments Incorporated (TI).
- What kind of company: An American multinational semiconductor company that designs and manufactures integrated circuits and related electronics components.
- What kind of company: An American multinational semiconductor company that designs and manufactures integrated circuits and related electronics components.
Application
LM4050AIM3-2.5 is a fixed 2.5 V shunt voltage reference in an AIM3 package. Key application areas:
- ADC/DAC references in microcontroller/processor systems
- Precision voltage reference for instrumentation, data acquisition, and test equipment
- Sensor front-ends and biasing (bridge, RTD, thermistor circuits)
- Battery-powered/portable analog circuits needing a stable reference
- Reference for regulators and op-amp circuits
- Calibration and zero-offset references in measurement systems
Features (benefits): low noise, low bias current, good temperature stability, compact SOT-style package.
- ADC/DAC references in microcontroller/processor systems
- Precision voltage reference for instrumentation, data acquisition, and test equipment
- Sensor front-ends and biasing (bridge, RTD, thermistor circuits)
- Battery-powered/portable analog circuits needing a stable reference
- Reference for regulators and op-amp circuits
- Calibration and zero-offset references in measurement systems
Features (benefits): low noise, low bias current, good temperature stability, compact SOT-style package.
Package
MSOP-8 (8-pin) package.
