TL034IN Equivalent & Substitute Parts

Part Overview

The TL034IN is a J-FET input operational amplifier manufactured by Texas Instruments, configured as a 4-circuit integrated circuit in a 14-DIP through-hole package. This device is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. The TL034IN serves applications requiring low input bias current, low input offset voltage, and moderate bandwidth in dual-supply configurations. Alternative packaging and form factors are available to support modern manufacturing processes and design requirements.

Substiute Parts

TL034IN

Texas InstrumentsIn Stock: 4422TL034IN Datasheet

Current PartRFQ

TL034IDR

Texas InstrumentsIn Stock: 19523TL034IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL034IN is determined by electrical and mechanical compatibility across the following criteria:

Electrical Parameters (Must Match):

• Amplifier Type: J-FET
• Number of Circuits: 4
• Slew Rate: 5.1 V/µs
• Gain Bandwidth Product: 1.1 MHz
• Current - Input Bias: 2 pA
• Voltage - Input Offset: 790 µV
• Current - Supply: 870 µA (x4 Channels)
• Current - Output / Channel: 40 mA
• Voltage - Supply Span: 10 V to 30 V
• Operating Temperature Range: -40°C to 85°C

Mechanical Parameters (May Differ):

• Mounting Type: Through Hole or Surface Mount
• Package / Case: 14-DIP or 14-SOIC

The TL034IDR is qualified as a substitute based on identical electrical performance and compliance specifications. The primary difference is packaging format: the TL034IDR uses 14-SOIC surface-mount technology instead of through-hole DIP configuration.

Parameter Comparison

Engineering Selection Recommendations

TL034IN (Through-Hole DIP):

• Product Status: Last Time Buy. Suitable for existing designs with through-hole assembly processes or legacy system maintenance where inventory is available.
• Current Inventory: 4,392 pieces.
• Compliance: ROHS3 Compliant, REACH Unaffected.
• Application: Recommended for prototype development, repair, or low-volume production where through-hole mounting is required.

TL034IDR (Surface-Mount SOIC):

• Product Status: Active. Recommended for new designs and production systems utilizing surface-mount technology.
• Current Inventory: 19,487 pieces.
• Compliance: ROHS3 Compliant, REACH Unaffected, Moisture Sensitivity Level 1 (Unlimited).
• Application: Preferred for high-volume manufacturing, modern PCB assembly, and designs requiring compact form factors.

Selection Criteria:

• Choose TL034IDR for new designs and active production programs.
• Choose TL034IN only when through-hole mounting is a design requirement or for legacy system support.
• Both parts deliver identical electrical performance and meet all regulatory compliance standards.

Frequently Asked Questions (FAQ)

Q: Can TL034IDR replace TL034IN in an existing circuit?

A: Electrical substitution is complete. The TL034IDR provides identical performance across all specified parameters. However, physical substitution requires PCB redesign: TL034IN uses through-hole mounting (14-DIP), while TL034IDR uses surface-mount technology (14-SOIC). Pin-to-pin electrical compatibility exists, but assembly method differs.

Q: What is the difference between 14-DIP and 14-SOIC packaging?

A: 14-DIP (Dual In-line Package) is a through-hole component with leads inserted into PCB holes. 14-SOIC (Small Outline Integrated Circuit) is a surface-mount component with leads soldered directly to PCB pads. SOIC packages occupy less board space (0.154" width vs. 0.300" width) and are standard in modern manufacturing.

Q: Why is TL034IN marked as Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued production. Existing inventory is available, but no future manufacturing is planned. For new designs, TL034IDR (Active status) is the recommended choice.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts share identical electrical specifications: 5.1 V/µs slew rate, 1.1 MHz gain bandwidth product, 2 pA input bias current, 790 µV input offset voltage, and -40°C to 85°C operating range. Substitution is electrically transparent.

Q: What compliance certifications apply to both parts?

A: Both TL034IN and TL034IDR are ROHS3 Compliant and REACH Unaffected. The TL034IDR carries Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions.

Q: Can I use TL034IDR in a through-hole PCB design?

A: No. TL034IDR requires surface-mount assembly. For through-hole designs, TL034IN is the appropriate choice. PCB redesign would be necessary to accommodate SOIC surface-mount technology.