OPA363IDRG4 Equivalent & Substitute Parts

Part Overview

The OPA363IDRG4 is a general-purpose operational amplifier manufactured by Texas Instruments, featuring rail-to-rail output capability in an 8-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of active equivalent components for ongoing design support and procurement continuity. The OPA363IDRG4 delivers a 7 MHz gain-bandwidth product with a 5 V/µs slew rate, suitable for general-purpose amplification applications requiring low input bias current and rail-to-rail output swing across a 1.8 V to 5.5 V supply range.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	5	V/µs
Gain Bandwidth Product	7	MHz
Current - Input Bias	1	pA
Voltage - Input Offset	500	µV
Current - Supply	1.1	mA
Current - Output / Channel	85	mA
Voltage - Supply Span (Min)	1.8	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature Range	-40 to 125	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	2 (1 Year)	—

Substitute Part Grouping Explanation

Substitution of the OPA363IDRG4 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Amplifier type: General Purpose
Number of circuits: 1
Output type: Rail-to-Rail
Slew rate: 5 V/µs
Gain bandwidth product: 7 MHz
Input bias current: 1 pA
Input offset voltage: 500 µV
Supply current: 1.1 mA
Output current per channel: 85 mA
Supply voltage range: 1.8 V to 5.5 V
Operating temperature range: -40°C to 125°C

Mechanical Equivalence Criteria:

Package type: 8-SOIC
Package dimensions: 0.154" width (3.90 mm)
Mounting type: Surface Mount

Compliance Equivalence Criteria:

RoHS3 compliance
Moisture sensitivity level: 2 (1 Year)
REACH unaffected status

The OPA363ID meets all electrical, mechanical, and compliance requirements for direct substitution with the OPA363IDRG4.

Parameter Comparison

Parameter	OPA363IDRG4 (Main Part)	OPA363ID (Substitute)	Match Status
Manufacturer	Texas Instruments	Texas Instruments	Identical
Base Product Number	OPA363	OPA363	Identical
Amplifier Type	General Purpose	General Purpose	Identical
Number of Circuits	1	1	Identical
Output Type	Rail-to-Rail	Rail-to-Rail	Identical
Slew Rate	5 V/µs	5 V/µs	Identical
Gain Bandwidth Product	7 MHz	7 MHz	Identical
Current - Input Bias	1 pA	1 pA	Identical
Voltage - Input Offset	500 µV	500 µV	Identical
Current - Supply	1.1 mA	1.1 mA	Identical
Current - Output / Channel	85 mA	85 mA	Identical
Voltage - Supply Span (Min)	1.8 V	1.8 V	Identical
Voltage - Supply Span (Max)	5.5 V	5.5 V	Identical
Operating Temperature	-40°C to 125°C	-40°C to 125°C	Identical
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level	2 (1 Year)	2 (1 Year)	Identical
Product Status	Obsolete	Active	Substitute is Active
Packaging	Reel	Tube	Different Packaging Format

Engineering Selection Recommendations

The OPA363ID is a direct electrical and mechanical equivalent to the OPA363IDRG4. Both devices share identical electrical specifications, package geometry, and compliance certifications. The primary distinction is product status: the OPA363IDRG4 is obsolete, while the OPA363ID maintains active status with Texas Instruments, ensuring ongoing availability and manufacturing support.

The OPA363ID is supplied in tube packaging, whereas the OPA363IDRG4 was supplied on reel. This packaging difference does not affect electrical performance or mechanical compatibility in circuit applications. Both devices are ROHS3 compliant and carry identical moisture sensitivity ratings.

For applications currently using the OPA363IDRG4, the OPA363ID provides full functional replacement without circuit redesign or performance degradation. The active product status of the OPA363ID ensures long-term procurement viability and manufacturing consistency.

Frequently Asked Questions (FAQ)

Q: Can the OPA363ID directly replace the OPA363IDRG4 in existing designs?

A: Yes. The OPA363ID is electrically and mechanically identical to the OPA363IDRG4 across all specified parameters. No circuit modifications are required for substitution.

Q: What is the difference between the OPA363IDRG4 and OPA363ID?

A: The devices are functionally equivalent. The OPA363IDRG4 is obsolete and was supplied on reel packaging. The OPA363ID is an active product supplied in tube packaging. Both share identical electrical characteristics, pin configuration, and package dimensions.

Q: Are there any compatibility concerns with the 8-SOIC package?

A: No. Both the OPA363IDRG4 and OPA363ID use the same 8-SOIC package with 0.154" width (3.90 mm). PCB footprints and assembly processes are identical.

Q: Does the packaging format (reel vs. tube) affect circuit performance?

A: No. Packaging format affects only handling and storage logistics. Electrical performance and mechanical fit are unaffected by whether the component is supplied on reel or in tube format.

Q: Are both devices RoHS compliant?

A: Yes. Both the OPA363IDRG4 and OPA363ID are ROHS3 compliant with identical moisture sensitivity levels (MSL 2, 1 Year).

Q: Why is the OPA363IDRG4 listed as obsolete?

A: Product obsolescence reflects Texas Instruments' manufacturing and support decisions. The OPA363ID remains in active production, providing continued availability for the OPA363 series.

Q: What is the supply voltage range for both devices?

A: Both devices operate across a 1.8 V to 5.5 V supply range, supporting single-supply and dual-supply configurations.

Q: Are the input offset voltage and input bias current specifications identical?

A: Yes. Both devices specify 500 µV input offset voltage and 1 pA input bias current, ensuring equivalent DC precision characteristics.

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