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LM4040DEM3-2.5 from NATIONAL,National Semiconductor

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LM4040DEM3-2.5

Manufacturer: NATIONAL

Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages

Partnumber Manufacturer Quantity Availability
LM4040DEM3-2.5,LM4040DEM325 NATIONAL 400 In Stock

Description and Introduction

Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages The LM4040DEM3-2.5 is a precision voltage reference manufactured by **NATIONAL** (now part of Texas Instruments). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Output Voltage:** 2.5V (fixed)  
- **Initial Accuracy:** ±0.1% (A grade), ±0.2% (B grade)  
- **Temperature Coefficient:** 50 ppm/°C (A grade), 100 ppm/°C (B grade)  
- **Operating Current Range:** 60 µA to 15 mA  
- **Package:** SOT-23 (3-pin)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Line Regulation:** 0.05 mV/V (typical)  
- **Load Regulation:** 0.1 mV/mA (typical)  

### **Descriptions:**  
- The LM4040 is a **shunt voltage reference** that operates like a precision Zener diode.  
- It provides a stable **2.5V output** with low noise and high accuracy.  
- Designed for **space-constrained applications** due to its small SOT-23 package.  

### **Features:**  
- **Low Output Noise:** 35 µV (typical)  
- **Wide Operating Current Range:** 60 µA to 15 mA  
- **No External Capacitor Required** for stability  
- **Low Dynamic Impedance:** 0.5 Ω (typical)  
- **Available in Multiple Voltage Grades** (A & B for tighter tolerances)  

This part is commonly used in **precision analog circuits, ADCs, DACs, and power management systems**.

Partnumber Manufacturer Quantity Availability
LM4040DEM3-2.5,LM4040DEM325 Pb-free 734 In Stock

Description and Introduction

Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages The LM4040DEM3-2.5 is a precision voltage reference from Texas Instruments. Below are the factual details from Ic-phoenix technical data files:

### **Manufacturer**  
Texas Instruments  

### **Pb-Free Specifications**  
- The device is **Pb-Free (Lead-Free)** and complies with RoHS (Restriction of Hazardous Substances) standards.  

### **Descriptions**  
- **Part Number:** LM4040DEM3-2.5  
- **Type:** Precision Voltage Reference  
- **Output Voltage:** 2.5V  
- **Tolerance:** ±0.1%, ±0.2%, ±0.5%, ±1% (depending on grade)  
- **Package:** SOT-23 (3-Pin)  
- **Temperature Range:** -40°C to +125°C  
- **Current Consumption:** 60µA (typical)  
- **Output Current:** Up to 15mA  

### **Features**  
- **Low Dropout Voltage:** Operates with as little as 1µA to 15mA supply current.  
- **High Accuracy:** Tight voltage tolerances available (±0.1% max).  
- **Low Noise:** Optimized for precision applications.  
- **Wide Operating Range:** -40°C to +125°C.  
- **Stable Performance:** No external capacitor required for stability.  
- **Reverse Breakdown Voltage Options:** 2.048V, 2.5V, 3V, 4.096V, 5V (LM4040 series).  

This information is sourced from Texas Instruments' official documentation.

Partnumber Manufacturer Quantity Availability
LM4040DEM3-2.5,LM4040DEM325 NS 500 In Stock

Description and Introduction

Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages The LM4040DEM3-2.5 is a precision voltage reference manufactured by NS (National Semiconductor). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 2.5V  
- **Initial Accuracy:** ±0.1% (A grade), ±0.2% (B grade)  
- **Temperature Coefficient:** 50 ppm/°C (A grade), 100 ppm/°C (B grade)  
- **Operating Current Range:** 60 µA to 15 mA  
- **Package:** SOT-23-3  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
- The LM4040 is a shunt voltage reference that provides a stable 2.5V output.  
- It is designed for precision applications requiring tight voltage tolerance and low temperature drift.  
- Available in multiple grades (A and B) for different accuracy requirements.  

### **Features:**
- **Low Output Noise:** 35 µV (typical)  
- **Wide Operating Current Range:** 60 µA to 15 mA  
- **No Output Capacitor Required**  
- **Long-Term Stability:** 20 ppm/1000 hr (typical)  
- **Reverse Breakdown Voltage Options:** 2.048V, 2.5V, 3V, 4.096V, 5V (LM4040 series)  

This information is sourced from the manufacturer's datasheet.

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