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Product Detailed Parameters
- Description：IC OPAMP JFET 2 CIRCUIT 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：J-FET
- Number of Circuits：2
- Output Type：-
- Slew Rate：13V/µs
- Gain Bandwidth Product：3 MHz
- Current - Input Bias：50 pA
- Voltage - Input Offset：500 µV
- Current - Supply：4.5mA (x2 Channels)
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：7 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：0°C ~ 70°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：-
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Overview
The LF412CDR is a dual JFET-input operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 3 MHz and a slew rate of 13 V/us. The device operates on supply voltages ranging from ±3.5V to ±18V (7V to 36V single supply). Key electrical specifications include an input offset voltage maximum of 3 mV, input bias current of 200 pA, and quiescent current of 4.5 mA per channel. It provides a common-mode rejection ratio of 100 dB and operates within a temperature range of 0°C to +70°C in an 8-pin SOIC package.
Feature Summary
- JFET input stage providing low input bias current
- High-speed performance with 13 V/us slew rate
- Dual-channel configuration in compact surface-mount packaging
Applications
- Audio preamplifiers
- Active filters
- Voltage followers
Procurement Notes
Verify the manufacturer origin, as multiple vendors produce equivalent part numbers. Confirm the specific suffix indicates the SOIC-8 package and commercial temperature grade. Ensure RoHS compliance status matches project requirements. Cross-reference datasheet parameters against original Texas Instruments documentation to validate performance claims before integration.
Selection Notes
Select this component for applications requiring low input bias current and moderate bandwidth. Compare against single-channel variants like the LF411 if only one amplifier is needed. Consider the LF412CP for through-hole mounting requirements. Evaluate power consumption constraints relative to the 4.5 mA per channel specification.
Part Context
This device belongs to the LF412 family of dual JFET-input operational amplifiers. It shares architectural similarities with the LF353 and TL072 series but offers distinct performance characteristics. The SOIC-8 package variant facilitates automated surface-mount assembly processes compared to legacy DIP packages.
Replacement Considerations
Compatible substitutes include the LF412CP for through-hole applications and generic equivalents from other manufacturers such as ON Semiconductor or NXP, provided pinout and electrical specifications align.
