TL034CNG4 Equivalent & Substitute Parts

Part Overview

The TL034CNG4 is a J-FET input operational amplifier containing four independent circuits in a 14-pin DIP package. This device is designed for applications requiring low input bias current and high input impedance characteristics typical of J-FET amplifier architectures. The TL034CNG4 is discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility for ongoing system support and new designs.

Key Parameters

Parameter	Value	Unit
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 (x4 Channels)	870	µA
Current - Output / Channel	40	mA
Voltage - Supply Span (Min)	10	V
Voltage - Supply Span (Max)	30	V
Operating Temperature	0 to 70	°C
Package / Case	14-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TL034CNG4 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Amplifier Type: J-FET input architecture
Number of Circuits: 4 independent operational amplifiers
Slew Rate: 5.1 V/µs
Gain Bandwidth Product: 1.1 MHz
Input Bias Current: 2 pA
Input Offset Voltage: 790 µV
Supply Current: 870 µA (total for 4 channels)
Output Current per Channel: 40 mA
Supply Voltage Range: 10 V to 30 V
Operating Temperature Range: 0°C to 70°C

Mechanical Equivalence Criteria:

Package Type: 14-DIP (0.300", 7.62mm)
Mounting Type: Through Hole
Pin Configuration: 14-PDIP

Compliance Equivalence Criteria:

RoHS3 Compliance
REACH Unaffected Status
ECCN: EAR99

The TL034CN meets all electrical, mechanical, and compliance requirements for direct substitution with the TL034CNG4.

Parameter Comparison

Parameter	TL034CNG4	TL034CN	Match
Amplifier Type	J-FET	J-FET	✓
Number of Circuits	4	4	✓
Slew Rate (V/µs)	5.1	5.1	✓
Gain Bandwidth Product (MHz)	1.1	1.1	✓
Current - Input Bias (pA)	2	2	✓
Voltage - Input Offset (µV)	790	790	✓
Current - Supply (µA)	870	870	✓
Current - Output / Channel (mA)	40	40	✓
Voltage - Supply Span Min (V)	10	10	✓
Voltage - Supply Span Max (V)	30	30	✓
Operating Temperature (°C)	0 to 70	0 to 70	✓
Package / Case	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	✓
Mounting Type	Through Hole	Through Hole	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓

Engineering Selection Recommendations

The TL034CN is the direct equivalent substitute for the TL034CNG4. Both components are manufactured by Texas Instruments and share identical electrical specifications, mechanical packaging, and regulatory compliance status.

Product Status Consideration: The TL034CNG4 is discontinued at DiGi Electronics. The TL034CN carries a Last Time Buy status, indicating limited availability. For applications currently using the TL034CNG4, transition to the TL034CN is supported by complete electrical and mechanical equivalence.

Packaging Difference: The primary distinction between these parts is packaging format. The TL034CNG4 is supplied in standard packaging, while the TL034CN is supplied in Tube packaging. This difference does not affect electrical performance or mechanical compatibility in through-hole PCB applications.

Compliance Status: Both components maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for industrial and commercial applications within the specified operating temperature range of 0°C to 70°C.

Frequently Asked Questions (FAQ)

Q: Can the TL034CN be used as a direct replacement for the TL034CNG4 in existing designs?

A: Yes. The TL034CN is electrically and mechanically equivalent to the TL034CNG4. All electrical parameters, including slew rate, gain bandwidth product, input bias current, and supply voltage specifications, are identical. Both components use the same 14-DIP through-hole package configuration.

Q: What is the difference between the TL034CNG4 and TL034CN?

A: The components are electrically identical. The difference is in packaging format: TL034CNG4 uses standard packaging, while TL034CN uses Tube packaging. This distinction affects only component handling and storage, not electrical performance or PCB compatibility.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both the TL034CNG4 and TL034CN are ROHS3 compliant and REACH Unaffected. They share identical ECCN (EAR99) and HTSUS classifications.

Q: What is the operating temperature range for these components?

A: Both the TL034CNG4 and TL034CN operate across 0°C to 70°C. Applications requiring extended temperature ranges require alternative component selection.

Q: Can these components be soldered using standard through-hole assembly processes?

A: Yes. Both components use 14-DIP through-hole packaging (0.300", 7.62mm) and are compatible with standard through-hole PCB assembly and rework procedures.

Q: What is the supply voltage range for the TL034CN?

A: The TL034CN operates with a supply voltage span of 10 V minimum to 30 V maximum, identical to the TL034CNG4.

Q: How many independent amplifier circuits are contained in the TL034CN?

A: The TL034CN contains four independent J-FET input operational amplifier circuits, matching the TL034CNG4 configuration.

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