LF147J Texas Instruments In Stock
LF147J is a wide-bandwidth quad JFET-input operational amplifier by Texas Instruments. Key specs: 4MHz gain-bandwidth product, low input bias current (50pA typical), wide supply voltage range (±5V to ±18V). From $11.57, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $11.5661(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LF147J?
- Quad JFET-input op-amp with ultra-low input bias current of 50pA typical
- Wide gain-bandwidth product of 4MHz for high-frequency signal processing
- Operates across wide supply voltage range of ±5V to ±18V
- Low input offset voltage for precision analog applications
- High slew rate enabling fast signal response in active filter designs
What is LF147J used for?
The LF147J is widely used in precision instrumentation and data acquisition systems where high input impedance and low bias current are critical. It excels in active filter designs, sample-and-hold circuits, and audio signal processing applications. The quad configuration makes it ideal for multi-channel analog signal conditioning in medical equipment, test instruments, and industrial control systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for LF147J?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input bias current of the LF147J?
The LF147J features a typical input bias current of 50pA, which is significantly lower than bipolar op-amps. This ultra-low bias current makes it ideal for high-impedance sensor interfaces, photodiode amplifiers, and precision measurement circuits where leakage current must be minimized.
What supply voltage range does the LF147J support?
The LF147J operates over a wide supply voltage range of ±5V to ±18V (dual supply), giving designers flexibility across different power supply environments. This broad range makes it compatible with both low-voltage portable systems and higher-voltage industrial applications without requiring design changes.
What are the typical applications for the LF147J?
The LF147J is commonly used in active filters, sample-and-hold circuits, integrators, precision instrumentation amplifiers, audio processing equipment, and data acquisition systems. Its quad configuration allows four independent op-amp channels in a single package, reducing board space and component count in multi-channel designs.
How does the LF147J compare to bipolar input op-amps?
Compared to bipolar input op-amps, the LF147J offers dramatically lower input bias current (50pA vs. nanoamperes for bipolar) due to its JFET input stage. This makes it superior for high-impedance signal sources. However, bipolar op-amps may offer lower offset voltage. The LF147J is the preferred choice when source impedance exceeds 100kΩ.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $13.0748 | $13.07 |
| 81+ | $12.0690 | $977.59 |
| 167+ | $11.5661 | $1931.54 |
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