LT1499HS#TRPBF Equivalent & Substitute Parts

Part Overview

The LT1499HS#TRPBF is a general purpose operational amplifier manufactured by Analog Devices Inc., featuring four independent circuits in a 14-SOIC surface mount package. This rail-to-rail output amplifier operates across a wide supply voltage range of 2.2V to 36V and is designed for applications requiring low input bias current and offset voltage specifications. The device is currently in active production status with 2000 units available in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be achieved within the specified parameter tolerances for this linear amplifier category. Substitution becomes necessary when the primary part experiences supply constraints, lead time requirements, or when alternative packaging formats are preferred for manufacturing processes.

Substiute Parts

LT1499HS#TRPBF

Analog Devices Inc.In Stock: 2066LT1499HS#TRPBF Datasheet

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OPA4172ID

Texas InstrumentsIn Stock: 1318OPA4172ID Datasheet

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OPA4172IDR

Texas InstrumentsIn Stock: 8293OPA4172IDR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LT1499HS#TRPBF are identified based on the following critical parameters that define functional equivalence:

Electrical Compatibility Criteria:

• Four independent operational amplifier circuits
• Rail-to-rail output configuration
• General purpose amplifier classification
• Input offset voltage specification of 200 µV
• Operating temperature range of -40°C to 125°C
• Supply voltage range compatibility (minimum 2.2V to maximum 36V)

Mechanical Compatibility Criteria:

• 14-SOIC surface mount package with 0.154" (3.90mm) width
• Surface mount assembly process compatibility

Compliance Criteria:

• ROHS3 compliance status
• Active product status

The OPA4172ID and OPA4172IDR devices from Texas Instruments satisfy these substitution criteria. Both variants contain four general purpose operational amplifier circuits in 14-SOIC packaging with rail-to-rail output capability. While these substitutes operate within a minimum supply voltage of 4.5V (higher than the LT1499HS#TRPBF minimum of 2.2V), they maintain compatibility with the maximum 36V supply specification and all other critical electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The LT1499HS#TRPBF remains the primary selection when the minimum supply voltage of 2.2V is required for the application. This device is actively manufactured by Analog Devices Inc., ROHS3 compliant, and available in tape and reel packaging suitable for high-volume automated assembly processes.

Substitute Part Selection - OPA4172ID: The OPA4172ID from Texas Instruments is suitable for applications where supply voltage remains at or above 4.5V. This device is actively produced, ROHS3 compliant, and available in tube packaging. The OPA4172ID provides higher output current capability (75 mA per channel versus 30 mA) and lower input bias current (8 pA versus 500 nA), with equivalent input offset voltage specification. Current inventory of 1215 units supports moderate-volume requirements.

Substitute Part Selection - OPA4172IDR: The OPA4172IDR is functionally identical to the OPA4172ID with equivalent electrical specifications and ROHS3 compliance. This variant is packaged in cut tape and Digi-Reel format, suitable for semi-automated or manual assembly processes. With 8200 units in stock, this variant offers the highest inventory availability among all three options. The OPA4172IDR maintains the same 4.5V minimum supply voltage requirement as the OPA4172ID.

Compliance Status: All three devices maintain ROHS3 compliance and active product status, ensuring long-term availability and regulatory alignment for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the OPA4172ID or OPA4172IDR be used as direct replacements for the LT1499HS#TRPBF?

A: Direct substitution is possible when the application supply voltage is 4.5V or higher. The OPA4172 variants are not suitable for applications requiring operation below 4.5V, as the LT1499HS#TRPBF supports minimum supply voltage of 2.2V. All other electrical parameters and package specifications are compatible.

Q: What are the key differences between OPA4172ID and OPA4172IDR?

A: Both devices are electrically identical with the same performance specifications. The primary difference is packaging format: OPA4172ID is supplied in tube packaging, while OPA4172IDR is supplied in cut tape and Digi-Reel format. Selection depends on assembly process requirements and handling preferences.

Q: Are the 14-SOIC packages physically identical?

A: Yes. All three devices use 14-SOIC packages with identical dimensions of 0.154" (3.90mm) width. They are mechanically interchangeable on printed circuit boards designed for 14-SOIC surface mount components.

Q: What is the significance of the input bias current difference between LT1499HS#TRPBF and OPA4172 variants?

A: The LT1499HS#TRPBF has an input bias current of 500 nA, while OPA4172 variants specify 8 pA. Lower input bias current reduces loading effects on high-impedance signal sources. Applications sensitive to input bias current effects should account for this 62,500-fold difference in specification.

Q: Do all three devices meet the same compliance requirements?

A: Yes. The LT1499HS#TRPBF, OPA4172ID, and OPA4172IDR are all ROHS3 compliant and REACH unaffected. All devices carry EAR99 export classification and identical HTSUS codes, ensuring regulatory equivalence for procurement and compliance documentation.

Q: What output current capability differences exist between these devices?

A: The LT1499HS#TRPBF provides 30 mA per channel output current, while both OPA4172 variants provide 75 mA per channel. Applications requiring higher output current capability benefit from the OPA4172 substitutes. Applications with lower output current requirements function identically with either device.

Q: How do the slew rate specifications compare?

A: The LT1499HS#TRPBF specifies 6 V/µs slew rate, while OPA4172 variants specify 10 V/µs. The higher slew rate of OPA4172 devices enables faster signal transitions and improved performance in high-frequency applications. Applications with lower bandwidth requirements function identically with either specification.