OPA1604AIPWR Equivalent & Substitute Parts

Part Overview

The OPA1604AIPWR is a four-channel audio amplifier integrated circuit manufactured by Texas Instruments, housed in a 14-TSSOP surface mount package. This device is classified as an audio-grade operational amplifier with rail-to-rail output capability, designed for audio signal processing applications requiring low noise and high fidelity performance. The part maintains Active product status and is RoHS3 compliant with full REACH compliance.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining mechanical compatibility and regulatory compliance. The OPA1604AIPWR has documented manufacturer-recommended substitutes within the Analog Devices ADA4177 series.

Substiute Parts

OPA1604AIPWR

Texas InstrumentsIn Stock: 2210OPA1604AIPWR Datasheet

Current PartRFQ

ADA4177-4ARUZ

Analog Devices Inc.In Stock: 2267ADA4177-4ARUZ Datasheet

MFR RecommendedRFQ

ADA4177-4ARUZ-R7

Analog Devices Inc.In Stock: 2302ADA4177-4ARUZ-R7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OPA1604AIPWR is determined by the following critical parameters:

Mechanical Compatibility:

• Package type: 14-TSSOP surface mount package with identical 0.173" (4.40mm) width
• Pin count: 4 circuits in 14-pin configuration
• Mounting type: Surface mount

Electrical Compatibility:

• Output configuration: Rail-to-rail output capability
• Supply voltage range: Minimum 4.5V to maximum 36V
• Number of independent amplifier circuits: 4 channels
• Operating temperature range: -40°C minimum to 85°C minimum (substitute must support at least this range)

Regulatory Compliance:

• RoHS3 compliance required
• REACH unaffected status required
• Active product status

The ADA4177-4ARUZ and ADA4177-4ARUZ-R7 satisfy all mechanical and electrical compatibility criteria. Both parts feature identical 14-TSSOP packaging, four-channel configuration, rail-to-rail output, and supply voltage range compatibility (5V to 36V). Both maintain Active product status, RoHS3 compliance, and REACH unaffected designation. The primary distinction between these substitutes is packaging format: ADA4177-4ARUZ is supplied in Tube packaging, while ADA4177-4ARUZ-R7 is supplied in Tape & Reel format.

Parameter Comparison

Engineering Selection Recommendations

OPA1604AIPWR (Primary Part): Select this part when the original design specification calls for Texas Instruments audio amplifier performance characteristics and the supply voltage minimum of 4.5V is required. This part is Active and fully compliant with RoHS3 and REACH requirements.

ADA4177-4ARUZ-R7 (Preferred Substitute): This substitute is recommended when supply chain constraints affect OPA1604AIPWR availability. The ADA4177-4ARUZ-R7 maintains identical mechanical compatibility through 14-TSSOP packaging and Tape & Reel format matching. Both parts are Active products with RoHS3 compliance and REACH unaffected status. The minimum supply voltage for ADA4177-4ARUZ-R7 is 5V, which is compatible with the OPA1604AIPWR's 4.5V minimum specification in applications operating at 5V or higher. The extended operating temperature maximum of 125°C provides additional thermal margin compared to the OPA1604AIPWR's 85°C maximum.

ADA4177-4ARUZ (Alternative Substitute): This part is functionally equivalent to ADA4177-4ARUZ-R7 with identical electrical specifications and compliance certifications. The distinction is packaging format: Tube instead of Tape & Reel. Select this variant when Tube packaging is preferred for inventory management or when Tape & Reel format is unavailable.

Frequently Asked Questions (FAQ)

Q: Can ADA4177-4ARUZ or ADA4177-4ARUZ-R7 be used as direct replacements for OPA1604AIPWR on existing PCBs?

A: Yes. Both ADA4177 variants are pin-compatible and package-compatible. The 14-TSSOP package dimensions are identical (0.173" width, 4.40mm), and the pin configuration supports direct PCB substitution without layout modification.

Q: What is the minimum supply voltage difference between OPA1604AIPWR and the ADA4177 substitutes?

A: The OPA1604AIPWR operates at a minimum of 4.5V, while both ADA4177-4ARUZ and ADA4177-4ARUZ-R7 require a minimum of 5V. In applications operating at 5V or higher, this difference is not a constraint. Applications requiring operation below 5V must retain the OPA1604AIPWR.

Q: Are there packaging format differences between the substitute options?

A: Yes. ADA4177-4ARUZ is supplied in Tube packaging, while ADA4177-4ARUZ-R7 is supplied in Tape & Reel format. The OPA1604AIPWR is supplied in Tape & Reel format. Select ADA4177-4ARUZ-R7 to maintain identical packaging format with the original part.

Q: Do the substitute parts maintain the same regulatory compliance as OPA1604AIPWR?

A: Yes. Both ADA4177-4ARUZ and ADA4177-4ARUZ-R7 are RoHS3 compliant and REACH unaffected, matching the compliance status of OPA1604AIPWR.

Q: What is the moisture sensitivity level difference?

A: OPA1604AIPWR has MSL 2 (1 Year), while both ADA4177 substitutes have MSL 1 (Unlimited). MSL 1 represents lower moisture sensitivity and longer shelf life without baking requirements.

Q: Can both ADA4177 variants be used interchangeably in the same application?

A: Yes. ADA4177-4ARUZ and ADA4177-4ARUZ-R7 have identical electrical specifications and performance characteristics. The only difference is packaging format (Tube versus Tape & Reel). Selection between them depends on supply chain availability and inventory management requirements.