LM3403J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
LM3403J is a quad general-purpose voltage-feedback operational amplifier from Texas Instruments in a 14-pin ceramic DIP package. Features 70 dB minimum CMRR, 0.5 µA bias current at 25°C, and frequency compensation from a dual-supply rail. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- LM3403J Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quad op-amp configuration provides 4 independent amplifiers in a single 14-pin ceramic DIP package for compact analog signal chains
- 70 dB minimum common-mode rejection ratio ensures accurate differential signal amplification in noisy industrial environments
- Internal frequency compensation eliminates external compensation capacitors, simplifying PCB design for unity-gain stable configurations
Applications
LM3403J is used in instrumentation amplifier stages, active filter networks, and analog signal conditioning circuits where four independent op-amp sections in one package reduce board space and interconnects. Industrial process control equipment leverages its 70 dB CMRR for rejecting common-mode noise from sensor cables. Military and aerospace designs value the ceramic DIP package for its hermetic seal and tolerance to harsh environments including high-radiation and wide-temperature conditions.
Specifications
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.8 µA |
| Bias Current-Max (IIB) @25C | 0.5 µA |
| Common-mode Reject Ratio-Min | 70dB |
| Common-mode Reject Ratio-Nom | 90dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 10000 µV |
| JESD-30 Code | R-GDIP-T14 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 4 |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Power | NO |
| Programmable Power | NO |
| Slew Rate-Nom | 0.6V/us |
| Supply Current-Max | 7mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 1000 |
| Voltage Gain-Min | 20000 |
| Wideband | NO |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input bias current and offset voltage specification of LM3403J at room temperature?
At 25°C, the LM3403J has a maximum input bias current of 0.5 µA and a maximum input offset voltage of 10,000 µV (10 mV). These specifications are typical of general-purpose bipolar-input op-amps and make the LM3403J suitable for non-precision amplification tasks such as audio mixing, comparator stages, and active filters where tight offset trimming is not required. High-precision applications should use a trimmed offset version or an auto-zero op-amp.
Why is the ceramic DIP-14 package used in LM3403J preferred for aerospace or military applications?
The ceramic GDIP-T14 package provides a hermetically sealed cavity that prevents moisture ingress, outgassing, and corrosion under extreme humidity, altitude, and radiation exposure. Military MIL-STD-883 qualification requires hermetic packaging for long-term reliability in avionics, missile guidance, and satellite subsystems where a plastic package could delaminate at -55°C to +125°C thermal cycling. The ceramic body also provides superior thermal conductivity compared to plastic, extending the safe power dissipation of the quad op-amp by approximately 30%.
What common-mode rejection ratio does LM3403J guarantee and how does it help in differential sensor applications?
LM3403J guarantees a minimum CMRR of 70 dB, with a typical value of 90 dB. In a differential measurement application such as a bridge sensor amplifier, 70 dB CMRR means the output error from a 1 V common-mode noise signal is less than 316 µV, protecting measurement accuracy in environments with 50 Hz or 60 Hz power line interference. Stacking two LM3403J sections in an in-amp topology can push effective CMRR above 100 dB for higher-precision sensing.
How does using a quad op-amp like LM3403J reduce BOM cost compared to using 4 single op-amps?
Using LM3403J replaces 4 individual single op-amp ICs with 1 package, reducing the component count by 3 units and the footprint from four 8-pin packages to one 14-pin DIP. This also cuts soldering points by at least 16, improving board assembly yield. For filter designs requiring 2nd-order Sallen-Key stages cascaded to achieve 4th-order roll-off, the quad package provides both amplifier stages in one 14-pin footprint with matched thermal tracking across all 4 channels.
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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.
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