TL062BCDG4 Equivalent & Substitute Parts

Part Overview

The TL062BCDG4 is a J-FET input operational amplifier manufactured by Texas Instruments, configured as a dual-channel (2 circuit) device in an 8-SOIC surface mount package. This component is designed for applications requiring low input bias current and high input impedance characteristics typical of J-FET amplifier architectures.

The TL062BCDG4 is currently discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design support and procurement. Alternative parts must maintain functional compatibility across critical electrical parameters including amplifier type, circuit count, package form factor, and operating specifications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	2	—
Slew Rate	3.5	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	30	pA
Voltage - Input Offset	2	mV
Current - Supply (x2 Channels)	200	µA
Current - Output / Channel	20	mA
Voltage - Supply Span (Min)	10	V
Voltage - Supply Span (Max)	30	V
Operating Temperature	0 to 70	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the TL062BCDG4 are classified into two primary categories based on amplifier type and electrical parameter alignment:

Category 1: Direct J-FET Amplifier Substitutes

These parts maintain the J-FET amplifier architecture and are suitable for direct replacement in applications where J-FET input characteristics are required:

TL062BCD (Texas Instruments) — Identical electrical specifications, different packaging (Tube vs. Tape & Reel)
TL062BCDT (STMicroelectronics) — J-FET type with modified supply voltage range (6V to 36V minimum/maximum) and input bias current specification (30 nA vs. 30 pA)
LT1457S8#PBF (Analog Devices Inc.) — J-FET type with enhanced slew rate (4V/µs) and gain bandwidth product (1.7 MHz), lower input bias current (7 pA)
LT1464ACS8#PBF (Analog Devices Inc.) — J-FET type with reduced slew rate (0.9V/µs), extremely low input bias current (0.5 pA), and lower supply current (145µA)

Category 2: General Purpose Amplifier Substitutes

These parts employ general purpose amplifier architecture and are suitable for applications where J-FET input characteristics are not mandatory:

AP4310AMTR-AG1 (Diodes Incorporated) — General purpose type with extended operating temperature range (-40°C to 105°C), lower supply current (150µA), higher output current (40 mA), and wider supply voltage range (3V to 36V)
AP4310AMTR-G1 (Diodes Incorporated) — General purpose type with identical specifications to AP4310AMTR-AG1, different packaging (Cut Tape & Digi-Reel vs. Tape & Reel)
AS358AMTR-E1 (Diodes Incorporated) — General purpose type with higher supply current (700µA), extended operating temperature range (-40°C to 85°C), and wider supply voltage range (3V to 36V)
LM258ADT (STMicroelectronics) — General purpose type with automotive qualification (AEC-Q100), extended operating temperature range (-40°C to 105°C), and wider supply voltage range (3V to 30V)
LM2904AYDT (STMicroelectronics) — General purpose type with automotive qualification (AEC-Q100), extended operating temperature range (-40°C to 125°C), and single-ended output configuration
LM833DT (STMicroelectronics) — Audio amplifier type with significantly higher slew rate (7V/µs), gain bandwidth product (15 MHz), and lower supply current (4mA)

Substitution logic is determined by the following critical parameters: amplifier type (J-FET vs. general purpose), number of circuits (2 required), package form factor (8-SOIC), supply voltage range compatibility, and operating temperature requirements.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA/nA)	Input Offset (mV/µV)	Supply Current (µA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Product Status
TL062BCDG4	Texas Instruments	J-FET	3.5	1	30 pA	2 mV	200	20	10	30	0 to 70	Discontinued
TL062BCD	Texas Instruments	J-FET	3.5	1	30 pA	2 mV	200	20	10	30	0 to 70	Last Time Buy
TL062BCDT	STMicroelectronics	J-FET	3.5	1	30 nA	2 mV	200	20	6	36	0 to 70	Active
LT1457S8#PBF	Analog Devices Inc.	J-FET	4	1.7	7 pA	220 µV	1800	—	9	36	-40 to 85	Active
LT1464ACS8#PBF	Analog Devices Inc.	J-FET	0.9	1	0.5 pA	600 µV	145	—	10	30	-40 to 85	Active
AP4310AMTR-AG1	Diodes Incorporated	General Purpose	0.5	1	20 nA	500 µV	150	40	3	36	-40 to 105	Active
AP4310AMTR-G1	Diodes Incorporated	General Purpose	0.5	1	20 nA	500 µV	150	40	3	36	-40 to 105	Active
AS358AMTR-E1	Diodes Incorporated	General Purpose	—	—	20 nA	2 mV	700	40	3	36	-40 to 85	Active
LM258ADT	STMicroelectronics	General Purpose	0.6	1.1	20 nA	1 mV	700	40	3	30	-40 to 105	Active
LM2904AYDT	STMicroelectronics	General Purpose	0.6	1.1	20 nA	1 mV	700	40	3	30	-40 to 125	Active
LM833DT	STMicroelectronics	Audio	7	15	300 nA	300 µV	4000	37	5	30	-40 to 105	Active

Engineering Selection Recommendations

For Direct Functional Replacement (J-FET Architecture Required)

TL062BCD is the primary direct substitute, offering identical electrical specifications to the TL062BCDG4 with the only difference being packaging format (Tube vs. Tape & Reel). This part maintains Last Time Buy status, indicating limited future availability.

TL062BCDT (STMicroelectronics) provides an active production alternative with J-FET architecture. This part accepts a wider supply voltage range (6V to 36V vs. 10V to 30V) and specifies input bias current as 30 nA rather than 30 pA. Designs operating within the original 10V to 30V supply range will function identically.

LT1464ACS8#PBF offers the lowest input bias current (0.5 pA) among J-FET substitutes with active product status. This part is suitable for applications requiring extremely high input impedance. Supply voltage range remains 10V to 30V, matching the original specification.

LT1457S8#PBF provides enhanced performance with higher slew rate (4V/µs) and gain bandwidth product (1.7 MHz), with significantly lower input bias current (7 pA). This part accepts a wider supply voltage range (9V to 36V) and extended operating temperature range (-40°C to 85°C).

For General Purpose Amplifier Substitution (J-FET Not Required)

AP4310AMTR-G1 offers the highest inventory availability (888,300 pieces) with active product status. This general purpose amplifier accepts a wider supply voltage range (3V to 36V) and extended operating temperature range (-40°C to 105°C). Higher output current capability (40 mA vs. 20 mA) and lower supply current (150µA vs. 200µA) provide design flexibility.

LM258ADT and LM2904AYDT both carry automotive qualification (AEC-Q100) with active product status. LM2904AYDT extends the operating temperature range to -40°C to 125°C. Both parts accept 3V to 30V supply range and provide 40 mA output current.

LM833DT is suitable only for applications where audio amplifier characteristics (7V/µs slew rate, 15 MHz gain bandwidth product) are compatible with the original design intent. This part requires 5V minimum supply voltage.

Compliance and Certification

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original TL062BCDG4 certification profile. Moisture sensitivity level remains 1 (Unlimited) for all J-FET substitutes and AS358AMTR-E1. General purpose alternatives AP4310AMTR-AG1 and AP4310AMTR-G1 specify MSL 3 (168 Hours), requiring controlled storage conditions.

Frequently Asked Questions (FAQ)

Q: Can TL062BCD be used as a direct replacement for TL062BCDG4?

A: Yes. TL062BCD provides identical electrical specifications and 8-SOIC package compatibility. The only difference is packaging format (Tube vs. Tape & Reel). However, TL062BCD carries Last Time Buy status, indicating limited future availability. For long-term procurement, TL062BCDT (STMicroelectronics) is recommended as the active production alternative.

Q: What is the key difference between J-FET and general purpose amplifier substitutes?

A: J-FET amplifiers (TL062BCD, TL062BCDT, LT1457S8#PBF, LT1464ACS8#PBF) feature extremely low input bias current (measured in picoamperes) and high input impedance, suitable for high-impedance signal sources and precision measurement applications. General purpose amplifiers (AP4310, AS358AMTR-E1, LM258ADT, LM2904AYDT) feature input bias current measured in nanoamperes and are suitable for general signal conditioning and audio applications. Selection depends on whether the original design requires J-FET input characteristics.

Q: Are all substitute parts compatible with the original 8-SOIC package footprint?

A: Yes. All substitute parts are specified in 8-SOIC (0.154", 3.90mm Width) package form factor, ensuring PCB footprint compatibility. However, verify supplier device package designation: some manufacturers designate this package as 8-SO or 8-SOIC. Physical dimensions remain identical.

Q: What is the impact of different supply voltage ranges on substitution?

A: The original TL062BCDG4 operates from 10V to 30V. TL062BCDT accepts 6V to 36V, providing wider range compatibility. General purpose alternatives (AP4310, AS358AMTR-E1, LM258ADT, LM2904AYDT) accept 3V to 36V or 3V to 30V ranges. If the original design operates within 10V to 30V, all substitutes are compatible. Designs operating below 10V require selection of parts with lower minimum supply voltage specifications.

Q: Which substitute offers the best long-term availability?

A: AP4310AMTR-G1 (Diodes Incorporated) offers the highest inventory (888,300 pieces) with active product status. LM258ADT and LM2904AYDT also maintain active status with substantial inventory levels. These parts are recommended for new designs requiring long-term component availability.

Q: Can LM833DT be used as a substitute?

A: LM833DT is an audio amplifier with significantly different electrical characteristics (7V/µs slew rate, 15 MHz gain bandwidth product, 4mA supply current). This part is suitable only for applications where audio amplifier performance is compatible with the original design. It is not recommended as a general substitute for precision or low-frequency applications.

Q: What is the significance of AEC-Q100 qualification on LM258ADT and LM2904AYDT?

A: AEC-Q100 qualification indicates automotive-grade reliability testing and is required for automotive applications. If the original design is not automotive-qualified, these parts provide additional reliability margin. For non-automotive applications, this qualification is not a requirement but represents enhanced quality assurance.

Q: How does input offset voltage affect substitution?

A: The original TL062BCDG4 specifies 2 mV input offset voltage. Substitutes range from 220 µV (LT1457S8#PBF) to 600 µV (LT1464ACS8#PBF) for J-FET types, and 500 µV to 2 mV for general purpose types. Lower offset voltage provides better precision in signal conditioning applications. If the original design includes offset nulling circuitry, substitutes with different offset voltages remain compatible.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in multiple packaging formats: Tube, Tape & Reel (TR), and Cut Tape (CT) & Digi-Reel. The original TL062BCDG4 was supplied in Tape & Reel format. Tube packaging (TL062BCD, LT1457S8#PBF, LT1464ACS8#PBF) is suitable for lower-volume applications. Cut Tape & Digi-Reel format (AP4310AMTR-G1, LM258ADT, LM2904AYDT) is optimized for automated assembly processes.

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