OPA404KU Texas Instruments amplifiers (CDIP) In Stock
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
What are the key features of OPA404KU?
- 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
What is OPA404KU used for?
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.
Compliance & Regulatory
| RoHS Status | Non-compliant |
Where can I find the OPA404KU datasheet?
OPA404KU Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for OPA404KU?
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.
Related Guides
XITCORP SSD Controllers: RISC-V Architecture and SM2/SM3/SM4 National Cryptography
How XITCORP pairs RISC-V multi-core controllers with hardware SM2/SM3/SM4 national cryptography, AES-256, and TCG Opal 2.0 across its SATA III and PCIe NVMe SSD controller lines.
Jul 12, 2026
SM2, SM3, SM4 National Cryptography in SSDs: A Design Guide for Secure Storage
How hardware SM2/SM3/SM4 engines deliver Guomi-certified full-disk encryption in SSDs, and when to choose national cryptography over AES-256 and TCG Opal 2.0.
Jul 12, 2026
Enterprise vs Industrial SSDs: How to Choose by PLP, DWPD, and Wide-Temperature Endurance
How to pick between enterprise and industrial SSDs using power-loss protection, DWPD/TBW endurance, and -40 to +85C wide-temperature qualification as the deciding factors.
Jul 12, 2026
150141RS73100 Red LED Indicator and Current-Resistor Design Guide
Design a reliable 150141RS73100 red LED indicator with worst-case resistor sizing, GPIO checks, PWM drive, layout, and production validation.
Jul 11, 2026
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $16.6800 | $16.68 |
| 4+ | $12.5100 | $50.04 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”