LT1114S Equivalent & Substitute Parts

Part Overview

The LT1114S is a general-purpose operational amplifier integrated circuit manufactured by Analog Devices Inc., configured as a quad amplifier (4 circuits) in a 16-SOIC surface mount package. This device is classified as Active product status and is ROHS3 compliant. The LT1114S serves applications requiring low-power, general-purpose amplification across a wide supply voltage range. Substitute parts are identified when equivalent electrical performance, package compatibility, and operational specifications align with application requirements, or when primary part availability is limited.

Substiute Parts

LT1114S

Analog Devices Inc.In Stock: 1194LT1114S Datasheet

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LT1114S#PBF

Analog Devices Inc.In Stock: 1308LT1114S#PBF Datasheet

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TLE2024CDWR

Texas InstrumentsIn Stock: 3076TLE2024CDWR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LT1114S are classified into two categories based on substitution criteria:

Direct Substitutes (Packaging Variant): Parts that maintain identical electrical specifications, circuit configuration, and package form factor but differ only in packaging format (tube versus standard packaging). These substitutes are interchangeable at the functional level.

Similar Substitutes (Performance Variant): Parts that share the same amplifier type (general purpose), circuit count (4 circuits), and surface mount package class but exhibit different electrical performance characteristics. These substitutes are evaluated based on the following key parameters:

• Slew Rate (V/µs)
• Gain Bandwidth Product (kHz or MHz)
• Current - Input Bias (pA or nA)
• Voltage - Input Offset (µV or mV)
• Current - Supply per 4 Channels (µA or mA)
• Voltage - Supply Span range (Min and Max)
• Operating Temperature range
• Package / Case dimensions and type

Substitution compatibility is determined by whether the substitute part meets or exceeds the electrical requirements of the application while maintaining surface mount compatibility and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

LT1114S#PBF (Direct Substitute): This part is a direct functional equivalent to the LT1114S, differing only in packaging format (tube packaging versus standard packaging). Both parts are manufactured by Analog Devices Inc., share identical electrical specifications, and maintain ROHS3 compliance and MSL Level 1 rating. Selection of LT1114S#PBF is appropriate when tube packaging is required for automated assembly processes or when inventory of the standard LT1114S is unavailable. No functional or performance differences exist between these two variants.

TLE2024CDWR (Similar Substitute): This Texas Instruments part is a general-purpose quad amplifier that shares the same circuit count and surface mount package class as the LT1114S. However, the TLE2024CDWR exhibits enhanced electrical performance characteristics: higher slew rate (0.5 V/µs versus 0.3 V/µs), significantly higher gain bandwidth product (2.8 MHz versus 750 kHz), lower input bias current (45 nA versus 70 pA), and lower input offset voltage (1 mV versus 20 µV). The TLE2024CDWR requires a minimum supply voltage of 4 V (versus 2 V for the LT1114S) and draws higher supply current (1.05 mA versus 350 µA per 4 channels). The package footprint differs in width (7.50mm versus 3.90mm). Selection of TLE2024CDWR is appropriate for applications requiring higher bandwidth performance and faster slew rate, provided that the minimum 4 V supply voltage requirement and increased power consumption are acceptable, and PCB layout accommodates the wider package footprint. Both parts maintain ROHS3 compliance and MSL Level 1 rating.

Frequently Asked Questions (FAQ)

Q: Can LT1114S#PBF be used as a direct replacement for LT1114S?

A: Yes. LT1114S#PBF is a direct functional equivalent. The only difference is packaging format (tube versus standard). All electrical specifications, performance characteristics, compliance certifications, and pin configurations are identical. Selection between these two variants depends solely on packaging requirements for assembly and handling.

Q: Is TLE2024CDWR a direct replacement for LT1114S?

A: No. TLE2024CDWR is a similar substitute, not a direct replacement. While both are general-purpose quad amplifiers in surface mount packages, the TLE2024CDWR exhibits different electrical performance. Key differences include higher slew rate, higher gain bandwidth product, lower input bias current, lower input offset voltage, higher supply current, and a higher minimum supply voltage requirement (4 V versus 2 V). The package footprint is also wider. TLE2024CDWR is suitable for applications requiring enhanced bandwidth and faster response, provided the design accommodates the different electrical characteristics and package dimensions.

Q: What are the critical parameters for determining substitution compatibility?

A: Substitution compatibility is determined by: (1) Amplifier type and circuit count, (2) Slew rate and gain bandwidth product, (3) Input bias current and input offset voltage, (4) Supply voltage range (minimum and maximum), (5) Supply current requirements, (6) Operating temperature range, (7) Package type and physical dimensions, and (8) Compliance certifications (RoHS, MSL). All parameters must be evaluated against application requirements.

Q: Can TLE2024CDWR be used in a circuit designed for LT1114S with a 2 V supply?

A: No. The TLE2024CDWR requires a minimum supply voltage of 4 V and will not operate at 2 V. If the application circuit operates at 2 V supply, the TLE2024CDWR is not suitable. The LT1114S or LT1114S#PBF must be used.

Q: What is the difference in package footprint between LT1114S and TLE2024CDWR?

A: The LT1114S uses a 16-SOIC package with 0.154" (3.90mm) width. The TLE2024CDWR uses a 16-SOIC package with 0.295" (7.50mm) width. The wider package of the TLE2024CDWR requires different PCB layout and may not fit in designs constrained by the narrower LT1114S footprint. PCB compatibility must be verified before substitution.

Q: Are both LT1114S and TLE2024CDWR RoHS compliant?

A: Yes. Both the LT1114S and TLE2024CDWR are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating. Both parts meet environmental and regulatory compliance requirements for industrial and commercial applications.

Q: What is the impact of higher supply current in TLE2024CDWR compared to LT1114S?

A: The TLE2024CDWR draws 1.05 mA per 4 channels, compared to 350 µA for the LT1114S. This represents approximately 3 times higher power consumption. Applications with strict power budget constraints or battery-powered designs may not be suitable for TLE2024CDWR substitution. Power supply capacity and thermal management must be evaluated.

Q: Can LT1114S be substituted with TLE2024CDWR in low-frequency applications?

A: Substitution is possible if the application does not require operation at 2 V supply voltage and if the PCB layout accommodates the wider package footprint. However, the higher supply current and different electrical characteristics (higher input offset voltage, lower input bias current) should be evaluated against application specifications. The enhanced bandwidth of TLE2024CDWR provides no benefit in low-frequency applications and increases power consumption unnecessarily.