Overview
The LM4140CCM-2.5/NOPB is a high-precision, low-noise, low-dropout voltage reference produced by Texas Instruments. This device is part of the LM4140 series, which combines high accuracy, low drift, and noise with low power dissipation in a compact package. The LM4140 is notable for its output voltage options lower than the traditional bandgap voltage, making it ideal for various precision applications. The device utilizes EEPROM registers and CMOS DACs for temperature coefficient curvature correction and output voltage accuracy trimming, ensuring high resolution and accuracy.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (Fixed) | 2.5 | V |
| Initial Accuracy (Max) | 0.1% | |
| Temperature Coefficient | 10 ppm/°C | |
| Noise (0.1 Hz to 10 Hz) | 2.2 µVp-p | |
| Input Voltage Range | 1.8 to 5.5 | V |
| Supply Current (Typical) | 230 to 265 µA | |
| Supply Current (Max) | 320 to 400 µA | |
| Output Current (Max) | 8 mA | |
| Operating Temperature Range | 0 to 70 | °C |
| Package Type | SOIC-8 | |
| RoHS Compliance | Yes |
Key Features
- High initial accuracy: 0.1%
- Ultra-low noise: 2.2 µVp-p (0.1 Hz to 10 Hz)
- Low temperature coefficient: 10 ppm/°C
- Low voltage operation: Input voltage as low as 1.8 V
- Low dropout voltage: 20 mV (typical) at 1 mA
- Low supply current: 230 µA (typical), ≤1 µA in disable mode
- Enable pin for ON/OFF control
- Custom voltage options from 0.5 V to 4.5 V available
- Compact 8-pin SOIC package
Applications
- Portable, battery-powered equipment
- Instrumentation and test equipment
- Automotive systems
- Industrial process control
- Data acquisition systems
- Medical equipment
- Precision scales
- Servo systems
- Battery charging systems
Q & A
- What is the initial accuracy of the LM4140CCM-2.5/NOPB?
The initial accuracy of the LM4140CCM-2.5/NOPB is 0.1%.
- What is the temperature coefficient of the LM4140CCM-2.5/NOPB?
The temperature coefficient is 10 ppm/°C.
- What is the noise level of the LM4140CCM-2.5/NOPB in the 0.1 Hz to 10 Hz range?
The noise level is 2.2 µVp-p.
- What is the input voltage range for the LM4140CCM-2.5/NOPB?
The input voltage range is from 1.8 V to 5.5 V.
- What is the typical supply current of the LM4140CCM-2.5/NOPB?
The typical supply current is 230 to 265 µA.
- What is the maximum output current of the LM4140CCM-2.5/NOPB?
The maximum output current is 8 mA.
- What is the operating temperature range of the LM4140CCM-2.5/NOPB?
The operating temperature range is from 0°C to 70°C.
- Does the LM4140CCM-2.5/NOPB have an enable pin for ON/OFF control?
Yes, it does have an enable pin for ON/OFF control.
- What package type is the LM4140CCM-2.5/NOPB available in?
The device is available in an 8-pin SOIC package.
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Yes, it is RoHS compliant.
