TL034CN Equivalent & Substitute Parts

Part Overview

The TL034CN is a J-FET input operational amplifier manufactured by Texas Instruments, configured as a 4-circuit integrated circuit in 14-DIP through-hole packaging. This device is classified as Last Time Buy, indicating discontinued production with limited remaining inventory of 2828 pieces. The TL034CN operates across a supply voltage range of 10V to 30V and is suitable for applications requiring low input bias current and low input offset voltage characteristics inherent to J-FET amplifier designs. Identification of equivalent and substitute parts is necessary due to the Last Time Buy status and potential future component unavailability.

Substiute Parts

TL034CN

Texas InstrumentsIn Stock: 2845TL034CN Datasheet

Current PartRFQ

TL034CDR

Texas InstrumentsIn Stock: 18914TL034CDR Datasheet

MFR RecommendedRFQ

AD713JNZ

Analog Devices Inc.In Stock: 2572AD713JNZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TL034CN is determined by the following critical parameters:

Mandatory Matching Criteria:

• Amplifier Type: J-FET
• Number of Circuits: 4
• Operating Temperature Range: 0°C to 70°C
• RoHS Compliance: ROHS3 Compliant

Functional Compatibility Criteria:

• Supply voltage range must encompass or exceed the TL034CN range (10V to 30V minimum)
• Input bias current must not exceed 2 pA
• Input offset voltage must not exceed 790 µV
• Output current per channel must support minimum 40 mA

Packaging Considerations: Substitutes may differ in mounting type (through-hole versus surface mount) and package form factor, provided the electrical specifications remain within acceptable parameters for the application circuit.

The TL034CDR and AD713JNZ meet these substitution criteria with variations in packaging and certain performance characteristics as detailed in the parameter comparison table.

Parameter Comparison

Engineering Selection Recommendations

TL034CDR (Texas Instruments, Surface Mount Alternative):

The TL034CDR is electrically identical to the TL034CN, maintaining identical slew rate (5.1 V/µs), gain bandwidth product (1.1 MHz), input bias current (2 pA), and input offset voltage (790 µV). The primary distinction is packaging: TL034CDR uses 14-SOIC surface-mount configuration versus the through-hole 14-DIP of the TL034CN. Selection of TL034CDR is appropriate for new designs utilizing surface-mount assembly processes. Both devices are ROHS3 compliant. TL034CDR maintains Active product status with higher inventory availability (18823 pieces).

AD713JNZ (Analog Devices Inc., Enhanced Performance Alternative):

The AD713JNZ provides superior performance characteristics in slew rate (20 V/µs versus 5.1 V/µs) and gain bandwidth product (4 MHz versus 1.1 MHz). Input offset voltage is improved (300 µV versus 790 µV). However, input bias current is higher (10 pA versus 2 pA), and supply current consumption is significantly elevated (10 mA versus 870 µA across 4 channels). Output current per channel is reduced to 25 mA. The AD713JNZ maintains through-hole 14-DIP packaging compatible with TL034CN board layouts. Supply voltage range is expanded (9V to 36V). AD713JNZ is ROHS3 compliant with Active product status. Selection is appropriate where higher bandwidth and faster slew rate are required, provided the increased supply current and reduced output current are acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can TL034CDR be used as a direct replacement for TL034CN in existing PCB designs?

A: TL034CDR cannot be used in existing TL034CN through-hole PCB designs without board modification. TL034CDR uses 14-SOIC surface-mount packaging, requiring surface-mount assembly capability and PCB redesign. For through-hole designs, AD713JNZ maintains compatible 14-DIP packaging.

Q: What are the key differences between TL034CN and AD713JNZ?

A: Both devices are 4-circuit J-FET amplifiers in 14-DIP through-hole packaging with identical operating temperature range (0°C to 70°C) and RoHS3 compliance. AD713JNZ provides higher slew rate (20 V/µs versus 5.1 V/µs), higher bandwidth (4 MHz versus 1.1 MHz), and lower input offset voltage (300 µV versus 790 µV). Conversely, AD713JNZ has higher input bias current (10 pA versus 2 pA), significantly higher supply current consumption (10 mA versus 870 µA), and lower output current per channel (25 mA versus 40 mA).

Q: Is AD713JNZ suitable for low-power applications?

A: AD713JNZ is not recommended for power-constrained applications. Supply current consumption is approximately 11.5 times higher than TL034CN (10 mA versus 870 µA across 4 channels). Applications requiring minimal power dissipation should retain TL034CN or TL034CDR.

Q: Can AD713JNZ be used in applications requiring 40 mA output current per channel?

A: AD713JNZ maximum output current per channel is 25 mA, which is insufficient for applications requiring 40 mA per channel. In such cases, TL034CN or TL034CDR must be used.

Q: What is the supply voltage compatibility between these devices?

A: TL034CN and TL034CDR operate across 10V to 30V. AD713JNZ operates across 9V to 36V, providing broader supply voltage range compatibility. All three devices are compatible with standard ±15V dual-supply configurations.

Q: Are all three devices RoHS compliant?

A: Yes. TL034CN, TL034CDR, and AD713JNZ are all ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements for electronic component manufacturing and use.