Overview
The Texas Instruments LF444CMX/NOPB is a quad low power JFET input operational amplifier. This device is designed to provide many of the same AC characteristics as the industry standard LM148, while significantly improving the DC characteristics. It features low input bias current, high gain bandwidth, and a high slew rate, making it suitable for a variety of applications requiring low power consumption and high performance.
Key Specifications
| Parameter | Description |
|---|---|
| Amplifier Type | Operational Amplifier |
| Architecture | Voltage-Feedback |
| Average Bias Current-Max (IIB) | 1.0E-4 µA |
| Input Offset Voltage-Max | 12000.0 µV |
| Common-mode Reject Ratio-Nom | 95.0 dB |
| Frequency Compensation | YES |
| Slew Rate-Nom | 1.0 V/us |
| Unity Gain BW-Nom | 1000.0 kHz |
| Supply Current-Max | 1.0 mA |
| Supply Voltage Limit-Max | 18.0 V |
| Operating Temperature-Min | 0.0 °C |
| Operating Temperature-Max | 70.0 °C |
| Package | SOIC-14 |
Key Features
- Low Input Bias Current: 50 pA (max)
- High Gain Bandwidth: 1 MHz
- High Slew Rate: 1 V/μs
- Low Noise Voltage: 35 nV/√Hz
- Low Input Noise Current: 0.01 pA/√Hz
- Micropower Operation: 200 μA/Amplifier (max)
- High Common-mode Reject Ratio: 95 dB (nom)
- Voltage Feedback Architecture
- Surface Mount Package: SOIC-14
Applications
The LF444CMX/NOPB is suitable for a wide range of applications, including:
- Audio and Video Equipment
- Medical Devices
- Industrial Control Systems
- Measurement and Testing Equipment
- Low Power Analog Circuits
Q & A
- What is the input bias current of the LF444CMX/NOPB?
The input bias current is 50 pA (max).
- What is the gain bandwidth of the LF444CMX/NOPB?
The gain bandwidth is 1 MHz.
- What is the slew rate of the LF444CMX/NOPB?
The slew rate is 1 V/μs.
- What is the operating temperature range of the LF444CMX/NOPB?
The operating temperature range is from 0°C to 70°C.
- What is the package type of the LF444CMX/NOPB?
The package type is SOIC-14.
- What is the supply voltage range of the LF444CMX/NOPB?
The supply voltage range is from -18V to 18V.
- Is the LF444CMX/NOPB a micropower device?
Yes, it operates with a supply current of 200 μA/Amplifier (max).
- What is the common-mode reject ratio of the LF444CMX/NOPB?
The common-mode reject ratio is 95 dB (nom).
- Is the LF444CMX/NOPB suitable for surface mount applications?
Yes, it is available in a surface mount SOIC-14 package).
- Where can I find the datasheet for the LF444CMX/NOPB?
The datasheet can be found on the Texas Instruments website or through various distributor websites such as LCSC, Digi-Key, and Heisener).
