OPA404KUIn StockTexas Instruments
OPA404KU is a Texas Instruments quad FET-input op-amp with 14-pin ceramic DIP package, offering low offset voltage, 6.5 MHz bandwidth, and single-supply operation. Starts at $16.68/unit, 1-piece MOQ, in-stock, ships worldwide.
- Manufacturer
- Texas Instruments
- Package
- CDIP
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- OPA404KU Datasheet PDF
- Category
- amplifiers
- Price
- From $12.5100(MOQ 1)
- Temp Range
- 0.0°C to 70.0°C
- RoHS
- Non-compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quad FET-input op-amp (4 channels)
- Low input offset voltage: 0.5 mV typ
- Gain-bandwidth product: 6.5 MHz
- Input bias current: 50 pA typ
- Supply range: +/-4.5 V to +/-18 V
- 14-pin CDIP package
Applications
Ideal for precision instrumentation, data acquisition front-ends, and active filter designs. Commonly used in test equipment, medical devices, and industrial signal conditioning where high input impedance and low bias current are critical.
Specifications
| supply_voltage | 18V |
| gain_bandwidth | 6.5MHz |
| input_bias_current | 50pA |
| input_offset_voltage | 0.5mV |
| channels | 4 |
| operating_temperature | 0 to +70degC |
| Package | CDIP |
Compliance & Regulatory
| RoHS Status | Non-compliant |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for OPA404KU:
Frequently Asked Questions
What is the OPA404KU and what does it do?
The OPA404KU is a quad FET-input operational amplifier from Texas Instruments in a 14-pin ceramic DIP package. It integrates four independent op-amp channels with JFET inputs, offering low input bias current (50 pA typ), low offset voltage (0.5 mV typ), and 6.5 MHz gain-bandwidth product, suitable for precision analog signal conditioning.
What is the supply voltage range for OPA404KU?
The OPA404KU operates on a dual supply from +/-4.5 V to +/-18 V, making it compatible with standard +/-15 V analog supply rails common in industrial and instrumentation equipment.
What package does the OPA404KU use and how many pins?
The OPA404KU is housed in a 14-pin Ceramic DIP (CDIP) package. The KU suffix designates the ceramic DIP variant, which provides superior thermal stability and reliability for demanding environments.
What are typical applications for the OPA404KU?
Typical applications include precision instrumentation front-ends, active filters, data acquisition systems, sample-and-hold circuits, and medical signal conditioning. The low input bias current makes it ideal for interfacing with high-impedance sensors.
Are there pin-compatible alternatives to the OPA404KU?
Pin-compatible or functionally similar alternatives include the LF347 (quad JFET op-amp, 14-pin DIP) and TL074 (quad JFET op-amp, 14-pin DIP). For upgraded performance, consider the OPA4134 series with lower noise and better offset specifications.
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Why Buy from FindMyChip
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $16.6800 | $16.68 |
| 4+ | $12.5100 | $50.04 |
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