THS4012IDR Equivalent & Substitute Parts

Part Overview

The THS4012IDR is a voltage feedback amplifier integrated circuit manufactured by Texas Instruments, configured as a dual-circuit operational amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, indicating it is no longer in active production. The high slew rate of 310V/µs and gain bandwidth product of 290 MHz position this component for high-speed signal conditioning applications. Due to its obsolete status, equivalent substitute parts from active product lines are necessary for new designs and ongoing production requirements.

Substiute Parts

THS4012IDR

Texas InstrumentsIn Stock: 6207THS4012IDR Datasheet

Current PartRFQ

LT1469CS8

Analog Devices Inc.In Stock: 1296LT1469CS8 Datasheet

MFR RecommendedRFQ

LT1469CS8#PBF

Analog Devices Inc.In Stock: 2420LT1469CS8#PBF Datasheet

MFR RecommendedRFQ

LT1469IS8#PBF

Analog Devices Inc.In Stock: 2532LT1469IS8#PBF Datasheet

MFR RecommendedRFQ

LT1469IS8#TRPBF

Analog Devices Inc.In Stock: 2034LT1469IS8#TRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the THS4012IDR is determined by compatibility across the following critical parameters: package type (8-SOIC surface mount), number of circuits (dual), mounting configuration, and operating temperature range. The substitute parts identified are from the Analog Devices LT1469 series, available in multiple packaging and temperature grade configurations.

The LT1469 series substitutes are classified as active products, ensuring long-term availability and supply chain continuity. All substitute parts maintain the same physical package dimensions (8-SOIC, 0.154" width, 3.90mm) and surface mount mounting type, enabling direct board-level replacement without layout modifications.

Key substitution parameters:

• Package type: 8-SOIC (0.154", 3.90mm Width)
• Number of circuits: 2
• Mounting type: Surface Mount
• RoHS3 compliance
• MSL rating: 1 (Unlimited)
• Operating temperature range compatibility

Parameter Comparison

Engineering Selection Recommendations

All substitute parts from the Analog Devices LT1469 series are active products with confirmed long-term availability, addressing the obsolescence status of the THS4012IDR. All candidates maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring compatibility with standard manufacturing and storage protocols.

LT1469IS8#PBF and LT1469IS8#TRPBF are the preferred substitutes for applications requiring the full operating temperature range of -40°C to 85°C, matching the THS4012IDR specification. These variants differ only in packaging format: tube packaging (LT1469IS8#PBF) or tape and reel format (LT1469IS8#TRPBF). Selection between these two depends on procurement and assembly requirements.

LT1469CS8#PBF operates within a reduced temperature range of 0°C to 70°C and is suitable only for applications where this narrower operating window is acceptable.

LT1469CS8 (non-PBF variant) provides equivalent electrical specifications to LT1469CS8#PBF with alternative packaging designation.

Circuit design review is required to confirm that the reduced slew rate (22V/µs versus 310V/µs), lower gain bandwidth product (90 MHz versus 290 MHz), reduced output current capability (22 mA versus 110 mA per channel), and narrower supply voltage range (5V to 9V versus 9V to 32V) of the LT1469 series are compatible with the intended application.

Frequently Asked Questions (FAQ)

Q: Can the LT1469 series directly replace the THS4012IDR without circuit modifications?

A: Physical package compatibility is confirmed (8-SOIC, identical dimensions). However, electrical parameter differences require circuit design review. The LT1469 series exhibits significantly lower slew rate, bandwidth, output current, and supply voltage range. Applications dependent on the THS4012IDR's high-speed characteristics (310V/µs slew rate, 290 MHz bandwidth) may require circuit redesign.

Q: What is the difference between LT1469IS8#PBF and LT1469IS8#TRPBF?

A: Both parts are electrically identical with identical operating temperature range (-40°C to 85°C). The difference is packaging format: LT1469IS8#PBF is supplied in tube packaging, while LT1469IS8#TRPBF is supplied in tape and reel format. Selection depends on assembly equipment compatibility and procurement preferences.

Q: Why does LT1469CS8 have a narrower operating temperature range?

A: The LT1469CS8 variant is specified for 0°C to 70°C operation, which is narrower than the THS4012IDR (-40°C to 85°C) and the LT1469IS8 variants (-40°C to 85°C). Applications requiring full -40°C to 85°C operation must use LT1469IS8#PBF or LT1469IS8#TRPBF.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The THS4012IDR and all LT1469 series substitutes are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting standard environmental and regulatory requirements.

Q: What is the supply voltage compatibility between the THS4012IDR and LT1469 substitutes?

A: The THS4012IDR operates from 9V to 32V supply span. The LT1469 series operates from 5V to 9V supply span. Designs utilizing supply voltages above 9V are incompatible with the LT1469 series without circuit modification.

Q: How do the output current capabilities compare?

A: The THS4012IDR provides 110 mA output current per channel. The LT1469 series provides 22 mA output current per channel. Applications requiring higher output current must incorporate external buffering or select alternative components.