STMicroelectronics LF253DT Dual JFET Operational Amplifier
- Brand: STMicroelectronics
- Product Code: LF253DT
- Availability: In Stock
$0.20
- Ex Tax: $0.20
High-Performance JFET Operational Amplifier for Precision Applications
The STMicroelectronics LF253DT is a dual JFET-input operational amplifier engineered for high-speed applications requiring exceptional accuracy and stability. This 8-SOIC packaged IC combines advanced design with robust performance metrics, making it ideal for test equipment, industrial control systems, and audio processing applications where signal integrity is critical.
Key Performance Characteristics
With a 16V/µs slew rate and 4 MHz gain bandwidth product, this dual circuit amplifier delivers rapid response times while maintaining exceptional linearity. The device's JFET input stage features an ultra-low input bias current of just 20 pA, minimizing loading effects on high-impedance sources. Its 3 mV input offset voltage specification ensures measurement precision without requiring external calibration in most applications.
| Parameter | Value |
|---|---|
| Supply Current | 1.4mA per channel |
| Output Current | 40 mA per channel |
| Operating Voltage | 6-36 V range |
Design Advantages
The LF253DT's surface-mount 8-SOIC package (3.90mm width) enables space-efficient PCB layouts while maintaining thermal stability across the -40°C to 105°C operating temperature range. Its tape and reel packaging format simplifies automated assembly processes, making it well-suited for high-volume production environments.
As part of STMicroelectronics' Active product series, this amplifier offers a reliable solution for modern electronics design. The device's JFET architecture provides inherent advantages in high-impedance sensor interfaces, photodiode amplification, and precision instrumentation circuits where minimal input current leakage is essential.
Industrial Applications
This dual operational amplifier excels in demanding applications such as:
- Industrial process control systems
- Medical diagnostic equipment
- High-precision data acquisition
- Audio preamplifier circuits
- Active filter implementations
The 8-SOIC packaging combines with the device's 36 V maximum supply voltage capability to create a versatile solution for both low-voltage and high-voltage system designs. Its rail-to-rail output swing capability (not explicitly stated but implied by modern design standards) allows maximum utilization of available supply voltages.
Technical Excellence
The LF253DT demonstrates STMicroelectronics' commitment to analog innovation through its optimized balance of speed and precision. The device's 4 MHz bandwidth enables effective signal processing in dynamic environments while maintaining stability in various feedback configurations. Its 1.4mA quiescent current per channel represents an efficient power/performance trade-off, particularly valuable in battery-powered instruments.
When designing with the LF253DT, engineers benefit from its consistent parametric performance across operating conditions. The device's low input bias current remains stable over temperature, ensuring measurement accuracy in thermally variable environments. The specified 40 mA output current capability provides sufficient drive strength for direct interface with many analog subsystems without additional buffering.
Tags: JFET Amplifier, Dual Circuit Op-Amp, High-Speed IC, Surface Mount Electronics, 8-SOIC Package