TL034AIN Equivalent & Substitute Parts

Part Overview

The TL034AIN 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 TL034AIN serves applications requiring low input bias current and low input offset voltage characteristics typical of J-FET amplifier designs.

Alternative equivalent parts are necessary due to the Last Time Buy status of the TL034AIN. Substitute components maintain electrical and mechanical compatibility while offering either extended availability, alternative packaging options, or active product status for long-term design continuity.

Substiute Parts

TL034AIN

Texas InstrumentsIn Stock: 1149TL034AIN Datasheet

Current PartRFQ

TL034AIDR

Texas InstrumentsIn Stock: 17409TL034AIDR Datasheet

MFR RecommendedRFQ

LT1465CN

Analog Devices Inc.In Stock: 1469LT1465CN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL034AIN is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Amplifier Type: J-FET configuration
• Number of Circuits: 4 independent amplifier circuits
• Slew Rate: 5.1 V/µs minimum
• Gain Bandwidth Product: 1.1 MHz minimum
• Current - Input Bias: 2 pA maximum
• Voltage - Input Offset: 580 µV maximum
• Voltage - Supply Span: 10 V to 30 V range
• Operating Temperature: -40°C to 85°C minimum coverage

Mechanical Equivalence Criteria:

• Package Type: 14-DIP or equivalent surface-mount alternative
• Pin Configuration: 14-pin standard

Substitute parts are grouped into two categories: direct package equivalents (same 14-DIP through-hole configuration) and functional equivalents with alternative packaging (surface-mount options). All substitutes maintain identical electrical specifications and supply voltage compatibility.

Parameter Comparison

Engineering Selection Recommendations

TL034AIDR (Texas Instruments): The TL034AIDR is the manufacturer-recommended direct electrical equivalent of the TL034AIN. It maintains identical electrical specifications including slew rate, gain bandwidth product, input bias current, and supply current characteristics. The primary distinction is packaging: TL034AIDR uses 14-SOIC surface-mount configuration versus the through-hole 14-DIP of the TL034AIN. This substitute is appropriate for new designs utilizing surface-mount assembly processes. The TL034AIDR carries Active product status with significantly higher inventory availability (17,371 units) compared to the TL034AIN (1,110 units). Both devices are ROHS3 compliant and share identical ECCN and HTSUS classifications.

LT1465CN (Analog Devices Inc.): The LT1465CN is a J-FET operational amplifier with 4 circuits in 14-DIP through-hole packaging, maintaining mechanical compatibility with the TL034AIN. Electrical performance differs in specific parameters: slew rate is reduced to 0.9 V/µs (versus 5.1 V/µs), gain bandwidth product is 1 MHz (versus 1.1 MHz), and supply current is significantly lower at 145 µA (versus 870 µA). Input bias current is superior at 0.5 pA (versus 2 pA). The LT1465CN operates within a narrower temperature range (0°C to 70°C versus -40°C to 85°C). This substitute is suitable for applications where reduced slew rate and lower power consumption are acceptable trade-offs, and where the operating temperature range does not extend below 0°C or above 70°C. The LT1465CN carries Active product status with ROHS3 compliance.

Selection between substitutes depends on application requirements: TL034AIDR for surface-mount implementations requiring identical electrical performance; LT1465CN for through-hole designs where lower power consumption and superior input bias current offset the reduced slew rate and narrower temperature range.

Frequently Asked Questions (FAQ)

Q: Can the TL034AIDR be used as a direct replacement for the TL034AIN in existing through-hole PCB designs?

A: No. The TL034AIDR uses 14-SOIC surface-mount packaging while the TL034AIN uses 14-DIP through-hole packaging. Physical board layout and assembly process compatibility differ. The TL034AIDR requires surface-mount assembly capability and modified PCB footprints. For through-hole designs, the LT1465CN maintains the same 14-DIP package format.

Q: What are the key electrical differences between the TL034AIN and LT1465CN?

A: The LT1465CN has a lower slew rate (0.9 V/µs versus 5.1 V/µs), lower gain bandwidth product (1 MHz versus 1.1 MHz), significantly lower supply current (145 µA versus 870 µA), and superior input bias current (0.5 pA versus 2 pA). The LT1465CN operates within a narrower temperature range (0°C to 70°C versus -40°C to 85°C). These differences affect applications requiring high-speed transient response or extended temperature operation.

Q: Are all three devices RoHS compliant?

A: Yes. The TL034AIN, TL034AIDR, and LT1465CN are all ROHS3 compliant. All three devices are REACH unaffected and classified under ECCN EAR99.

Q: Which substitute should be selected for a new design?

A: For new surface-mount designs, the TL034AIDR is recommended as the manufacturer-designated equivalent with identical electrical specifications and Active product status. For new through-hole designs, the LT1465CN provides through-hole compatibility with Active status, though electrical performance differs in slew rate, bandwidth, and power consumption. Verify that the LT1465CN's narrower temperature range and reduced slew rate meet application requirements.

Q: What is the inventory status of each device?

A: The TL034AIN has 1,110 units in stock with Last Time Buy status. The TL034AIDR has 17,371 units in stock with Active status. The LT1465CN has 1,425 units in stock with Active status. For long-term supply assurance, the TL034AIDR offers the highest inventory availability.

Q: Can the LT1465CN be used in applications requiring operation below 0°C or above 70°C?

A: No. The LT1465CN operating temperature range is 0°C to 70°C. Applications requiring -40°C to 85°C operation must use the TL034AIN or TL034AIDR, which both support this extended temperature range.

Q: Are the pin configurations identical between all three devices?

A: All three devices use 14-pin configurations. The TL034AIN and LT1465CN both use 14-DIP through-hole packages with identical pin spacing (0.300", 7.62mm). The TL034AIDR uses 14-SOIC surface-mount packaging with different physical dimensions (0.154", 3.90mm width) but maintains the same logical pin assignment.