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Product Detailed Parameters
- Description：IC OPAMP JFET 4 CIRCUIT 14SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：3 mV
- Current - Supply：600µA (x4 Channels)
- Current - Output / Channel：14 mA
- Voltage - Supply Span (Min)：36 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：0°C ~ 70°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：14-SOIC
- -3db Bandwidth：-
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Overview
The LF444CMX is a quad low-power JFET input operational amplifier manufactured by Texas Instruments. It features four independent amplifiers within a single package, designed for applications requiring low power consumption and high input impedance. The device operates with a supply voltage range of 6 V to 36 V or dual supplies of ±3 V to ±18 V. Key electrical characteristics include a gain-bandwidth product of 1 MHz, a slew rate of 1 V/µs, and an input bias current of 100 pA. It is housed in a 14-pin SOIC package.
Feature Summary
- Quad configuration providing four independent low-power JFET input operational amplifiers
- High input impedance due to JFET input stage technology
- Low power consumption suitable for battery-operated systems
- Wide single or dual supply voltage operation capability
Applications
- General-purpose analog signal processing circuits
- Battery-powered instrumentation systems
- Audio pre-amplification stages
- Active filter designs
Procurement Notes
Verify the specific suffix 'CMX' against the official datasheet to confirm the tape-and-reel packaging variant. Ensure the component matches the required operating temperature range of 0°C to +70°C for your application environment. Cross-reference the manufacturer part number with the latest revision history to avoid obsolete stock issues.
Selection Notes
Select this component when a quad amplifier configuration is required alongside low power constraints. The JFET input stage offers higher input impedance compared to bipolar counterparts, making it suitable for high-impedance source applications. Consider the 1 MHz bandwidth limit when designing for higher frequency signals.
Part Context
This part belongs to the LF444 family of quad operational amplifiers from Texas Instruments. It shares architectural similarities with other members like the LF444CD and LF444CN but differs in packaging and reel specifications. The CMX designation specifically indicates the surface-mount SOIC-14 package supplied in a tape-and-reel format for automated assembly.
Replacement Considerations
Direct pin-compatible replacements may include other quad JFET op-amps from the same family such as LF444CD or LF444CN, provided the packaging difference is accounted for. Verify that alternative parts meet the same 1 MHz gain-bandwidth and 1 V/µs slew rate requirements.
