MC33272AP Equivalent & Substitute Parts

Part Overview

The MC33272AP is a general-purpose operational amplifier manufactured by onsemi, configured as a 2-circuit integrated circuit in an 8-DIP package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MC33272AP operates across a wide supply voltage range of 3V to 36V and is rated for industrial temperature applications from -40°C to 85°C. Identifying compatible substitutes ensures design flexibility while maintaining electrical and mechanical compatibility with existing circuit implementations.

Key Parameters

Parameter	MC33272AP Value	Unit
Manufacturer	onsemi	—
Category	Linear, Amplifiers	—
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Package / Case	8-DIP (0.300", 7.62mm)	—
Slew Rate	10	V/µs
Gain Bandwidth Product	24	MHz
Current - Input Bias	300	nA
Voltage - Input Offset	100	µV
Current - Supply	2.15 (x2 Channels)	mA
Current - Output / Channel	37	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	-40 to 85	°C
Mounting Type	Through Hole	—
Product Status	Obsolete	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the MC33272AP is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Mechanical Compatibility: All substitute parts must use the 8-DIP (0.300", 7.62mm) through-hole package to ensure direct socket compatibility.

Functional Compatibility: All substitute parts must contain 2 operational amplifier circuits within a single 8-pin DIP package.

Electrical Operating Range: Substitute parts must support the minimum supply voltage of 3V and maximum supply voltage of 36V to maintain compatibility with existing power supply designs.

Temperature Rating: Substitute parts must operate across the industrial temperature range of -40°C to 85°C to ensure performance in equivalent environmental conditions.

Amplifier Classification: The MC33272AP is a general-purpose amplifier. Substitutes may include general-purpose, J-FET, or voltage feedback amplifier types, provided all other parameters remain compatible.

The following substitute parts meet these criteria and are organized by amplifier type and product status.

Parameter Comparison

Parameter	MC33272AP	AD712JNZ	AD712KNZ	AS358AP-E1	AS358P-E1	LM258P	LT1361CN8#PBF	TL082CP/NOPB	TL5580AIP
Manufacturer	onsemi	Analog Devices Inc.	Analog Devices Inc.	Diodes Incorporated	Diodes Incorporated	Texas Instruments	Analog Devices Inc.	Texas Instruments	Texas Instruments
Amplifier Type	General Purpose	J-FET	J-FET	General Purpose	General Purpose	General Purpose	Voltage Feedback	J-FET	General Purpose
Number of Circuits	2	2	2	2	2	2	2	2	2
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Voltage - Supply Span (Min)	3 V	9 V	9 V	3 V	3 V	3 V	5 V	36 V	4 V
Voltage - Supply Span (Max)	36 V	36 V	36 V	36 V	36 V	32 V	30 V	36 V	32 V
Operating Temperature	-40 to 85°C	0 to 70°C	0 to 70°C	-40 to 85°C	-40 to 85°C	-25 to 85°C	-40 to 85°C	0 to 70°C	-40 to 85°C
Current - Input Bias	300 nA	25 pA	25 pA	20 nA	20 nA	20 nA	300 nA	50 pA	100 nA
Voltage - Input Offset	100 µV	300 µV	300 µV	2 mV	2 mV	3 mV	300 µV	5 mV	300 µV
Current - Supply	2.15 mA (x2)	5 mA	5 mA	0.7 mA (x2)	0.7 mA (x2)	0.5 mA (x2)	4 mA (x2)	3.6 mA (x2)	6 mA
Current - Output / Channel	37 mA	25 mA	25 mA	40 mA	40 mA	40 mA	34 mA	17 mA	50 mA
Slew Rate	10 V/µs	20 V/µs	20 V/µs	— (not specified)	— (not specified)	0.3 V/µs	800 V/µs	13 V/µs	5 V/µs
Gain Bandwidth Product	24 MHz	4 MHz	4 MHz	— (not specified)	— (not specified)	0.7 MHz	50 MHz	4 MHz	12 MHz
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Last Time Buy
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (General Purpose Amplifiers with Full Temperature Range):

AS358AP-E1 and AS358P-E1 (Diodes Incorporated) are the most direct substitutes for the MC33272AP. Both devices are general-purpose amplifiers with 2 circuits in 8-DIP packages, support the full 3V to 36V supply range, and operate across the -40°C to 85°C temperature range. Both parts are ROHS3 compliant and currently in active production status, ensuring long-term availability. AS358P-E1 has higher inventory levels (67,400 units) compared to AS358AP-E1 (44,266 units).

Secondary Substitutes (General Purpose Amplifiers with Limited Temperature Range):

LM258P (Texas Instruments) is a general-purpose amplifier with 2 circuits in 8-DIP package. This device supports 3V to 32V supply operation and operates from -25°C to 85°C. The upper temperature limit of -25°C is higher than the MC33272AP's -40°C minimum, restricting use in applications requiring full industrial temperature range. LM258P is ROHS3 compliant and in active production with high inventory availability (34,988 units).

TL5580AIP (Texas Instruments) is a general-purpose amplifier with 2 circuits in 8-DIP package supporting 4V to 32V supply operation and -40°C to 85°C temperature range. This device is ROHS3 compliant but classified as Last Time Buy, indicating limited future availability. Inventory is 754 units.

J-FET Amplifier Substitutes (Higher Input Impedance):

AD712JNZ and AD712KNZ (Analog Devices Inc.) are J-FET amplifiers with 2 circuits in 8-DIP packages. Both support 9V to 36V supply operation, which does not include the 3V minimum of the MC33272AP. Both operate from 0°C to 70°C, which does not meet the -40°C minimum requirement. Both are ROHS3 compliant and in active production. AD712KNZ has higher inventory (3,745 units) than AD712JNZ (2,001 units).

TL082CP/NOPB (Texas Instruments) is a J-FET amplifier with 2 circuits in 8-DIP package. This device requires a minimum supply voltage of 36V and operates from 0°C to 70°C, which does not meet the MC33272AP's 3V minimum or -40°C minimum temperature requirements. TL082CP/NOPB is ROHS3 compliant and in active production with limited inventory (911 units).

High-Performance Substitute (Voltage Feedback Amplifier):

LT1361CN8#PBF (Analog Devices Inc.) is a voltage feedback amplifier with 2 circuits in 8-DIP package. This device supports 5V to 30V supply operation and -40°C to 85°C temperature range. The 5V minimum supply voltage exceeds the MC33272AP's 3V minimum. LT1361CN8#PBF is ROHS3 compliant and in active production with inventory of 3,586 units. This device offers significantly higher slew rate (800V/µs) and gain bandwidth product (50 MHz) compared to the MC33272AP.

Compliance Considerations:

The MC33272AP is RoHS non-compliant. All substitute parts listed are ROHS3 compliant, meeting current regulatory requirements for new designs and production. Selection of ROHS3 compliant substitutes ensures compliance with environmental and hazardous substance restrictions.

Frequently Asked Questions (FAQ)

Q: Can AS358AP-E1 or AS358P-E1 be used as direct replacements for MC33272AP?

A: Yes. Both AS358AP-E1 and AS358P-E1 are direct mechanical and electrical substitutes. They are general-purpose amplifiers with 2 circuits in 8-DIP packages, support the full 3V to 36V supply range, and operate across -40°C to 85°C. Both are ROHS3 compliant and in active production.

Q: What is the difference between AS358AP-E1 and AS358P-E1?

A: Both devices are electrically and mechanically identical. The primary difference is inventory availability. AS358P-E1 has 67,400 units in stock compared to 44,266 units for AS358AP-E1. Both are packaged in tubes and manufactured by Diodes Incorporated.

Q: Can AD712JNZ or AD712KNZ replace MC33272AP?

A: AD712JNZ and AD712KNZ are not suitable direct replacements. While both are 2-circuit amplifiers in 8-DIP packages, they require a minimum supply voltage of 9V, which exceeds the MC33272AP's 3V minimum. Additionally, both operate only from 0°C to 70°C, which does not meet the MC33272AP's -40°C minimum temperature requirement.

Q: Is LM258P compatible with MC33272AP?

A: LM258P is mechanically compatible and supports the 3V to 36V supply range. However, LM258P operates from -25°C to 85°C, which does not meet the MC33272AP's -40°C minimum temperature requirement. LM258P is suitable only for applications not requiring operation below -25°C.

Q: What are the advantages of LT1361CN8#PBF over MC33272AP?

A: LT1361CN8#PBF offers significantly higher performance with slew rate of 800V/µs (compared to 10V/µs) and gain bandwidth product of 50 MHz (compared to 24 MHz). However, LT1361CN8#PBF requires a minimum supply voltage of 5V, which exceeds the MC33272AP's 3V minimum. LT1361CN8#PBF is suitable for applications requiring higher speed and bandwidth with supply voltages of 5V or greater.

Q: Why is TL082CP/NOPB not recommended as a substitute?

A: TL082CP/NOPB requires a minimum supply voltage of 36V and operates from 0°C to 70°C. These specifications do not meet the MC33272AP's 3V minimum supply voltage or -40°C minimum temperature requirements. TL082CP/NOPB is suitable only for applications with 36V supply and 0°C to 70°C temperature range.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant. The original MC33272AP is RoHS non-compliant. Selection of ROHS3 compliant substitutes ensures compliance with current environmental regulations.

Q: What is the difference between Last Time Buy and Active product status?

A: Active status indicates the manufacturer continues production and supports the part for new designs. Last Time Buy status indicates the manufacturer will discontinue production after a specified date, with no further availability after that time. TL5580AIP is classified as Last Time Buy, while all other substitutes are in Active production status.

Q: Can I use multiple substitute parts interchangeably in the same design?

A: No. While all listed substitutes are mechanically compatible with the 8-DIP package, they have different electrical characteristics including slew rate, gain bandwidth product, input bias current, and supply voltage requirements. Each substitute must be evaluated individually for the specific application requirements before selection.

Q: Which substitute offers the lowest power consumption?

A: AS358AP-E1 and AS358P-E1 offer the lowest supply current at 0.7 mA (x2 channels). LM258P offers 0.5 mA (x2 channels), which is the lowest among all substitutes listed.

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