OPA734AIDRG4 Equivalent & Substitute Parts

Part Overview

The OPA734AIDRG4 is a zero-drift operational amplifier manufactured by Texas Instruments, designed for precision analog signal conditioning applications. This device features rail-to-rail output capability, ultra-low input offset voltage of 1 µV, and minimal input bias current of 100 pA, making it suitable for high-accuracy measurement and instrumentation circuits.

The OPA734AIDRG4 carries an Obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for applications currently utilizing this component.

Substiute Parts

OPA734AIDRG4

Texas InstrumentsIn Stock: 1128OPA734AIDRG4 Datasheet

Current PartRFQ

OPA734AID

Texas InstrumentsIn Stock: 1705OPA734AID Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPA734AIDRG4 is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Amplifier type (zero-drift), number of circuits (1), output configuration (rail-to-rail), slew rate (1.5 V/µs), gain bandwidth product (1.6 MHz), input bias current (100 pA), input offset voltage (1 µV), supply current (600 µA), output current per channel (20 mA), and supply voltage range (2.7 V to 12 V).

Thermal & Environmental: Operating temperature range (-40°C to 85°C).

Physical & Mechanical: Package type (8-SOIC with 0.154" / 3.90mm width), surface mount configuration, and moisture sensitivity level (MSL 2).

Regulatory & Compliance: RoHS3 compliance, REACH unaffected status, and equivalent ECCN/HTSUS classifications.

The substitute part OPA734AID meets all these criteria while offering improved product status (Active versus Obsolete) and higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The OPA734AID is a direct functional equivalent to the OPA734AIDRG4 across all electrical, thermal, mechanical, and regulatory parameters. The primary distinction is product lifecycle status: the OPA734AIDRG4 is classified as Obsolete, while the OPA734AID maintains Active status with Texas Instruments.

For new designs or production continuity, the OPA734AID is the appropriate selection. Both parts share identical electrical performance specifications, package geometry, and compliance certifications (ROHS3, REACH unaffected). The OPA734AID offers superior supply chain security with higher current inventory levels (1610 Pcs versus 1024 Pcs).

The packaging difference (Tube for OPA734AID versus Tape and Reel for OPA734AIDRG4) does not affect electrical or mechanical compatibility and represents a standard variation in distribution format.

Frequently Asked Questions (FAQ)

Q: Can the OPA734AID directly replace the OPA734AIDRG4 in existing circuit designs?

A: Yes. The OPA734AID is electrically and mechanically identical to the OPA734AIDRG4. All electrical specifications, package dimensions, pin configurations, and operating parameters are equivalent. No circuit modifications are required.

Q: What is the significance of the Obsolete product status for the OPA734AIDRG4?

A: Obsolete status indicates that Texas Instruments has discontinued active manufacturing and support for this part number. The OPA734AID, with Active status, represents the current production equivalent and ensures long-term availability and manufacturer support.

Q: Does the packaging format difference (Tube versus Tape and Reel) affect compatibility?

A: No. Packaging format is a distribution and handling consideration only. The physical component, electrical performance, and mechanical fit remain identical. Tube packaging is suitable for manual assembly and lower-volume applications, while Tape and Reel is optimized for automated pick-and-place assembly.

Q: Are there any thermal or environmental performance differences between these parts?

A: No. Both parts operate across the identical temperature range (-40°C to 85°C) and share the same moisture sensitivity level (MSL 2, 1 Year). Thermal and environmental performance is equivalent.

Q: What compliance certifications apply to the OPA734AID?

A: The OPA734AID is ROHS3 compliant and REACH unaffected, matching the certifications of the OPA734AIDRG4. Both parts carry identical ECCN (EAR99) and HTSUS (8542.33.0001) classifications.

Q: Is the OPA734AID suitable for high-precision measurement applications?

A: Yes. The OPA734AID maintains the zero-drift amplifier architecture with 1 µV input offset voltage and 100 pA input bias current, making it suitable for precision instrumentation, data acquisition, and analog signal conditioning applications requiring ultra-low offset and bias specifications.