LT1079SW#TRPBF Equivalent & Substitute Parts

Part Overview

The LT1079SW#TRPBF is a general purpose operational amplifier integrated circuit manufactured by Analog Devices Inc. This four-channel amplifier is housed in a 16-SOIC surface mount package and is supplied in Tape & Reel (TR) packaging. The device is currently in active product status with 4,247 units in stock.

The LT1079SW#TRPBF operates across a wide supply voltage range of 2.2 V to 30 V, making it suitable for diverse analog signal processing applications. Identification of equivalent and substitute parts becomes necessary when addressing supply chain constraints, packaging format requirements, or when specific performance characteristics are required for particular circuit implementations.

Substiute Parts

LT1079SW#TRPBF

Analog Devices Inc.In Stock: 4338LT1079SW#TRPBF Datasheet

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AD704JRZ-16

Analog Devices Inc.In Stock: 695976AD704JRZ-16 Datasheet

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AD704JRZ-16-REEL

Analog Devices Inc.In Stock: 4941AD704JRZ-16-REEL Datasheet

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OP497GSZ

Analog Devices Inc.In Stock: 3116OP497GSZ Datasheet

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OP497GSZ-REEL

Analog Devices Inc.In Stock: 8069OP497GSZ-REEL Datasheet

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TLE2144CDW

Texas InstrumentsIn Stock: 1684TLE2144CDW Datasheet

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TLE2144CDWR

Texas InstrumentsIn Stock: 2006TLE2144CDWR Datasheet

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TLE2144IDW

Texas InstrumentsIn Stock: 3224TLE2144IDW Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LT1079SW#TRPBF is determined by the following critical parameters: four-channel configuration, 16-SOIC package format, surface mount technology, and compliance certifications (ROHS3, REACH Unaffected, EAR99 classification).

The substitute parts are grouped into two categories based on electrical performance characteristics:

Category 1: Direct Performance Equivalents Parts AD704JRZ-16, AD704JRZ-16-REEL, OP497GSZ, and OP497GSZ-REEL maintain slew rates of 0.1 V/µs to 0.15 V/µs and gain bandwidth products between 200 kHz and 500 kHz. These devices operate within comparable supply voltage ranges and share identical package geometry. These substitutes are suitable for applications where the LT1079SW#TRPBF performance envelope is required.

Category 2: Enhanced Performance Alternatives Parts TLE2144CDW, TLE2144CDWR, and TLE2144IDW are rail-to-rail output amplifiers manufactured by Texas Instruments. These devices feature significantly higher slew rates (45 V/µs) and gain bandwidth products (5.9 MHz), with extended supply voltage ranges up to 44 V. These substitutes are applicable when enhanced bandwidth and output swing characteristics are required.

All substitute parts maintain the four-channel configuration, 16-SOIC package format, surface mount mounting type, and compliance certifications of the primary device.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution with Minimal Circuit Impact: The AD704JRZ-16 and AD704JRZ-16-REEL devices are suitable direct substitutes when packaging format flexibility is acceptable. Both parts maintain ROHS3 compliance and REACH Unaffected status. The AD704 series offers improved input bias current characteristics (100 pA versus 6 nA) and lower input offset voltage (50 µV versus 80 µV), with higher gain bandwidth product (800 kHz versus 200 kHz). These devices are available in both Tube and Tape & Reel packaging formats.

For Low-Power Supply Applications: The OP497GSZ and OP497GSZ-REEL devices provide moderate performance enhancement with slew rate of 0.15 V/µs and gain bandwidth product of 500 kHz. Supply current consumption is 525 µA across four channels, representing a 13-fold increase from the LT1079SW#TRPBF. These parts maintain full compliance certifications and operate across supply ranges of 4 V to 40 V.

For High-Speed Applications: The TLE2144 series (CDW, CDWR, IDW variants) from Texas Instruments provides rail-to-rail output capability with significantly enhanced performance metrics: 45 V/µs slew rate and 5.9 MHz gain bandwidth product. These devices are suitable for applications requiring extended output swing and higher frequency response. The TLE2144IDW variant supports extended operating temperature range of -40°C to 105°C. All TLE2144 variants maintain ROHS3 compliance and REACH Unaffected status.

Packaging Considerations: The LT1079SW#TRPBF is supplied in Tape & Reel format. Direct packaging equivalents in Tape & Reel format include AD704JRZ-16-REEL, OP497GSZ-REEL, and TLE2144CDWR. Tube-packaged alternatives (AD704JRZ-16, OP497GSZ, TLE2144CDW, TLE2144IDW) require packaging format conversion for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the AD704JRZ-16 replace the LT1079SW#TRPBF in existing circuit designs? A: The AD704JRZ-16 is electrically compatible with the LT1079SW#TRPBF. Both devices feature identical 16-SOIC package geometry, four-channel configuration, and surface mount technology. The AD704 offers improved input bias current and offset voltage specifications. The primary consideration is packaging format: AD704JRZ-16 is supplied in Tube packaging, while the LT1079SW#TRPBF uses Tape & Reel. For Tape & Reel format, use AD704JRZ-16-REEL.

Q: What are the key differences between the OP497GSZ and the LT1079SW#TRPBF? A: The OP497GSZ maintains the same slew rate class (0.15 V/µs versus 0.1 V/µs) and offers higher gain bandwidth product (500 kHz versus 200 kHz). Input bias current is significantly lower (60 pA versus 6 nA). Supply current consumption increases to 525 µA per four channels. Operating temperature range extends to -40°C to 85°C. All devices share identical package format and compliance certifications.

Q: When should the TLE2144 series be selected over the LT1079SW#TRPBF? A: The TLE2144 series is selected when applications require rail-to-rail output capability, higher slew rates (45 V/µs), or extended bandwidth (5.9 MHz). These devices are suitable for high-speed signal processing, precision instrumentation, and applications requiring maximum output voltage swing. The trade-off is increased supply current consumption (6.9 mA versus 39 µA across four channels).

Q: Are all substitute parts ROHS3 compliant? A: All substitute parts listed (AD704JRZ-16, AD704JRZ-16-REEL, OP497GSZ, OP497GSZ-REEL, TLE2144CDW, TLE2144CDWR, TLE2144IDW) are ROHS3 compliant and REACH Unaffected, matching the compliance status of the LT1079SW#TRPBF.

Q: What is the impact of supply voltage range differences on substitution? A: The LT1079SW#TRPBF operates from 2.2 V to 30 V. Substitute parts operate from minimum 4 V, which eliminates compatibility for applications requiring operation below 4 V supply voltage. For applications operating above 4 V within the LT1079 range, all substitute parts are compatible. The OP497GSZ and TLE2144 series extend maximum supply voltage to 40 V and 44 V respectively, providing additional headroom for higher voltage applications.

Q: Does input bias current difference affect circuit performance? A: Input bias current differences between the LT1079SW#TRPBF (6 nA) and substitute parts (ranging from 60 pA to 700 nA) impact high-impedance input circuits. For applications with source impedances exceeding 1 MΩ, lower input bias current devices (AD704, OP497) reduce input offset errors. For standard impedance applications below 100 kΩ, input bias current differences are negligible.

Q: Can Tube-packaged parts be used in place of Tape & Reel format? A: Tube-packaged parts require manual handling or reeling for automated assembly processes. Direct substitution in high-volume manufacturing requires either manual component placement or conversion to Tape & Reel format. For prototype and low-volume applications, Tube packaging is acceptable. Tape & Reel format equivalents are AD704JRZ-16-REEL, OP497GSZ-REEL, and TLE2144CDWR.