LF444 (6)
The LF444 is available from Texas Instruments at Xecor. Designed for low-power operational amplification, the LF444 offers exceptional performance with features such as a high gain bandwidth of 1 MHz, a low supply current of 200 µA per amplifier, and a high slew rate of 1 V/µs. Available in multiple package options, including PDIP (N)-14 and SOIC (D)-14, it is ideal for applications in precision instrumentation, audio processing, and portable electronics. Whether used in medical devices, industrial control systems, or consumer electronics, this series ensures reliable performance, low noise, and high efficiency for demanding applications. Xecor is an authorized distributor for Texas Instruments. Please view our extensive selection of the LF444 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| LF444CM | Op Amp Quad Low Power Amplifier ±18V 14-Pin SOIC Tube | SOIC-14 | 2,177 | |
| LF444CN | This product is a quad operational amplifier that operates within the temperature range of 0 to 70 degrees | DIP-14 | 5,067 | |
| LF444ACN | Versatile low power amplifier with four channels | DIP-14 | 7,522 | |
| LF444CMX/NOPB | JFET Input Operational Amplifier in Quad Configuration | SOIC (D)-14 | 6,708 | |
| LF444CM/NOPB | Op Amp Quad Low Power Amplifier ±18V 14-Pin SOIC Tube | SOIC-14 | 6,513 | |
| LF444CN/NOPB | Op Amp Quad Low Power Amplifier ±18V 14-Pin PDIP Tube | 14-PDIP | 8,375 |
Key Featrues
High Input Impedance: With an input impedance of 10¹² Ω, the LF444 minimizes loading effects on signal sources, ensuring accurate signal amplification in high-impedance circuits.
Low Input Bias Current: The maximum input bias current of 50 pA reduces errors in precision applications, such as sensor signal conditioning or high-gain amplification.
High Gain Bandwidth: The LF444 offers a gain bandwidth of 1 MHz, enabling it to handle high-frequency signals effectively in audio, communication, and instrumentation systems.
Low Noise Performance: With an input noise voltage of 35 nV/√Hz and noise current of 0.01 pA/√Hz, the LF444 delivers clean signal amplification, making it suitable for low-noise applications like medical devices and audio equipment.
Applications
Precision Audio Signal Processing: The LF444 is well-suited for precision audio signal processing in portable audio devices or low-power audio amplifiers. Its high gain bandwidth and low noise voltage ensure high-fidelity audio reproduction, while its low power consumption extends battery life in portable applications.
High-Impedance Biomedical Signal Amplification: The LF444 is perfect for amplifying high-impedance biomedical signals, such as ECG or EEG signals. Its JFET input stage provides high input impedance and low input bias current, ensuring accurate signal acquisition without loading the sensor, making it ideal for medical instrumentation and wearable health devices.
Low-Power Active Filtering in Control Systems: The LF444 is an excellent choice for implementing low-power active filters in control systems, such as motor control or robotics. Its high slew rate and low noise characteristics ensure fast and accurate signal processing, while its low power consumption makes it suitable for energy-efficient designs in industrial automation.
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