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Product Detailed Parameters
- Description：IC OPAMP JFET 4 CIRCUIT 14DIP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Amplifier Type：J-FET
- Number of Circuits：4
- Output Type：-
- Slew Rate：1V/µs
- Gain Bandwidth Product：1 MHz
- Current - Input Bias：10 pA
- Voltage - Input Offset：2 mV
- Current - Supply：600µA (x4 Channels)
- Current - Output / Channel：14 mA
- Voltage - Supply Span (Min)：44 V
- Voltage - Supply Span (Max)：44 V
- Operating Temperature：0°C ~ 70°C
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：14-DIP (0.300", 7.62mm)
- Supplier Device Package：14-PDIP
- -3db Bandwidth：-
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Overview
The LF444ACN/NOPB is a quad low-power JFET input operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 1 MHz and a slew rate of 1 V/us. The device operates within a supply voltage range of 6 V to 36 V, with a maximum dual supply of 18 V. Key electrical specifications include an input offset voltage of 5 mV, input bias current of 50 pA, and common-mode rejection ratio of 100 dB. Input voltage noise density is 35 nV/sqrt Hz. The component draws 600 uA operating supply current and provides 14 mA output current per channel. It is housed in a 14-pin MDIP package.
Feature Summary
- Integrates four independent JFET input operational amplifiers for multi-channel signal processing.
- Provides high input impedance characteristics inherent to JFET technology.
- Designed for low power consumption applications requiring efficient energy usage.
Applications
- General-purpose analog signal conditioning circuits
- Audio pre-amplifier stages
- Sensor interface circuits
Procurement Notes
Verify the specific suffix NOPB indicates lead-free and RoHS compliance status against the manufacturer's latest documentation. Confirm the MDIP-14 through-hole package dimensions match your PCB footprint requirements. Ensure the AC grade offset voltage specifications meet your circuit tolerance needs before finalizing procurement orders.
Selection Notes
Select this component when a quad configuration is required to minimize board space compared to single op-amps. The JFET input stage offers higher input impedance than bipolar alternatives, suitable for high-impedance sources. Consider the 1 MHz bandwidth limit for high-frequency applications where faster slew rates are necessary.
Part Context
This part belongs to the LF444 family of quad operational amplifiers from Texas Instruments. It serves as a modernized, environmentally compliant version of legacy JFET input op-amps. The family is characterized by low power operation combined with good performance metrics for general-purpose analog applications.
Replacement Considerations
Check for direct pin-compatible replacements within the same LF444 series or equivalent quad JFET op-amps from other manufacturers. Verify that substitute parts maintain similar input bias current and offset voltage specifications to ensure circuit compatibility.
