Precision Micropower Shunt Voltage Reference The LM4040BIM7X-5.0 is a precision voltage reference manufactured by NS (National Semiconductor).
### **Specifications:**
- **Output Voltage:** 5.0V ±0.1% (A-grade)
- **Initial Accuracy:** ±0.1% (A-grade), ±0.2% (B-grade)
- **Temperature Coefficient:** 50ppm/°C (max)
- **Operating Current Range:** 60µA to 15mA
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** SOT-23-3
- **Output Noise (10Hz to 10kHz):** 35µVrms (typical)
- **Long-Term Stability:** 20ppm/1000hrs (typical)
- **Load Regulation:** 0.05mV/mA (typical)
- **Line Regulation:** 0.3mV/V (typical)
### **Descriptions:**
- The LM4040 is a precision two-terminal shunt voltage reference.
- It offers low dynamic impedance, low noise, and stable operation over a wide current range.
- Available in fixed reverse breakdown voltages of 2.048V, 2.5V, 3.0V, 4.096V, and 5.0V.
- No external stabilizing capacitor required.
### **Features:**
- **High Accuracy:** Tight tolerances (A-grade ±0.1%, B-grade ±0.2%).
- **Low Temperature Drift:** Ensures stability across temperature variations.
- **Low Noise:** Suitable for precision analog applications.
- **Wide Operating Current Range:** 60µA to 15mA.
- **No Capacitor Required:** Stable without external components.
- **Reverse Breakdown Voltage Options:** Multiple fixed voltage options available.
- **Small Package:** SOT-23-3 for space-constrained designs.
This device is commonly used in precision voltage regulation, data converters, power supplies, and industrial control systems.
