LF412CPE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
LF412CPE4 is a dual JFET-input operational amplifier in DIP-8 package with ultra-low 0.0002µA bias current and 100dB CMRR. Voltage-feedback architecture with internal frequency compensation delivers precision signal amplification. From $1.20 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LF412CPE4 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
- Ultra-low maximum input bias current of 0.0002µA and 0.0001µA offset current minimize errors in high-impedance sensor signal conditioning
- 100dB nominal common-mode rejection ratio with voltage-feedback architecture ensures precision amplification and excellent noise immunity
- Industry-standard DIP-8 package with internal frequency compensation simplifies board layout and reduces design complexity for dual op-amp applications
Applications
The LF412CPE4 is ideal for precision instrumentation amplifiers, active filters, and sample-and-hold circuits where ultra-low input bias current is critical for accuracy. Its high CMRR makes it well-suited for differential signal conditioning in data acquisition systems and medical equipment. The dual op-amp configuration in a compact DIP-8 package enables space-efficient design of audio processing, strain gauge, and photodiode amplifier circuits.
Specifications
| Date Of Intro | 1989-03-01 |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.0002 µA |
| Bias Current-Max (IIB) @25C | 0.0002 µA |
| Common-mode Reject Ratio-Min | 70dB |
| Common-mode Reject Ratio-Nom | 100dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.0001 µA |
| Input Offset Voltage-Max | 3000 µV |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e4 |
| 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 | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 8V/us |
| Slew Rate-Nom | 13V/us |
| Supply Current-Max | 6.8mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | NO |
| Technology | BIFET |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 3000 |
| Voltage Gain-Min | 15000 |
| Wideband | NO |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LF412CPE4:
Frequently Asked Questions
What is the input bias current of the LF412CPE4 and why is it important?
The LF412CPE4 has a maximum input bias current (IIB) of only 0.0002µA at 25°C, which is critical for high-impedance sensor applications such as photodiode amplifiers, pH meters, and electrometer circuits where even small currents can introduce significant measurement errors.
What is the common-mode rejection ratio of the LF412CPE4?
The LF412CPE4 provides a minimum CMRR of 70dB and a nominal CMRR of 100dB, ensuring excellent rejection of common-mode noise and interference, which is essential for differential signal measurements in industrial instrumentation and medical diagnostic equipment.
What package is the LF412CPE4 available in and how many amplifiers does it contain?
The LF412CPE4 is housed in a DIP-8 (Dual-In-Line) through-hole package and contains two independent operational amplifiers, making it a dual op-amp ideal for stereo audio circuits, balanced signal processing, and two-channel sensor interfaces.
Does the LF412CPE4 require external frequency compensation?
No, the LF412CPE4 includes internal frequency compensation, eliminating the need for external compensation capacitors. This simplifies circuit design, reduces component count, and ensures stable closed-loop operation across a wide range of gain settings and load conditions.
What are typical applications for the LF412CPE4 operational amplifier?
Typical applications include precision active filters, sample-and-hold amplifiers, data acquisition front ends, audio signal processing, and photodiode transimpedance amplifiers. Its low bias current and high CMRR make it particularly valuable in scientific instruments and high-precision analog signal chains.
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