OPA726AIDR Equivalent & Substitute Parts

Part Overview

The OPA726AIDR is a general-purpose operational amplifier manufactured by Texas Instruments, designed for rail-to-rail applications in 8-SOIC surface mount packaging. This device is classified as obsolete, which necessitates identification of equivalent substitute components for ongoing production and maintenance applications. The OPA726AIDR provides a single amplifier circuit with specified electrical characteristics suitable for low-power analog signal processing across industrial and commercial temperature ranges.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	30	V/µs
Gain Bandwidth Product	20	MHz
Current - Input Bias	30	pA
Voltage - Input Offset	1.2	mV
Current - Supply	4.3	mA
Current - Output / Channel	40	mA
Voltage - Supply Span (Min)	4	V
Voltage - Supply Span (Max)	12	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 OPA726AIDR is determined by strict equivalence across the following critical parameters:

Electrical Characteristics: Slew rate (30 V/µs), gain bandwidth product (20 MHz), input bias current (30 pA), input offset voltage (1.2 mV), supply current (4.3 mA), and output current per channel (40 mA) must remain identical.

Functional Classification: Amplifier type (general purpose), number of circuits (1), and output configuration (rail-to-rail) must match exactly.

Power Supply Requirements: Supply voltage span minimum (4 V) and maximum (12 V) must be maintained.

Environmental Specifications: Operating temperature range (-40°C to 125°C) must be supported.

Physical and Compliance Requirements: Package type (8-SOIC), mounting method (surface mount), RoHS3 compliance, and moisture sensitivity level (MSL 2) must be identical.

The OPA726AID meets all these criteria and is identified as the manufacturer-recommended substitute.

Parameter Comparison

Parameter	OPA726AIDR (Main Part)	OPA726AID (Substitute)	Match
Manufacturer	Texas Instruments	Texas Instruments	✓
Category	Linear, Amplifiers	Linear, Amplifiers	✓
Amplifier Type	General Purpose	General Purpose	✓
Number of Circuits	1	1	✓
Output Type	Rail-to-Rail	Rail-to-Rail	✓
Slew Rate	30 V/µs	30 V/µs	✓
Gain Bandwidth Product	20 MHz	20 MHz	✓
Current - Input Bias	30 pA	30 pA	✓
Voltage - Input Offset	1.2 mV	1.2 mV	✓
Current - Supply	4.3 mA	4.3 mA	✓
Current - Output / Channel	40 mA	40 mA	✓
Voltage - Supply Span (Min)	4 V	4 V	✓
Voltage - Supply Span (Max)	12 V	12 V	✓
Operating Temperature	-40°C to 125°C	-40°C to 125°C	✓
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	✓
Mounting Type	Surface Mount	Surface Mount	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level	2 (1 Year)	2 (1 Year)	✓
Product Status	Obsolete	Active	—

Engineering Selection Recommendations

The OPA726AID is the direct equivalent substitute for the OPA726AIDR. Both components are manufactured by Texas Instruments and share identical electrical, functional, and physical specifications. The primary distinction is product status: the OPA726AIDR is classified as obsolete, while the OPA726AID maintains active production status.

From a compliance perspective, both parts are ROHS3 compliant and REACH unaffected, ensuring regulatory alignment for new designs and production continuity. The OPA726AID is available in tube packaging with significantly higher inventory levels (1468 pieces) compared to the OPA726AIDR (734 pieces), supporting supply chain reliability.

For applications currently using the OPA726AIDR, direct substitution with the OPA726AID requires no circuit modifications, PCB layout changes, or firmware adjustments. The identical 8-SOIC package footprint, pin configuration, and electrical performance ensure drop-in compatibility.

Frequently Asked Questions (FAQ)

Q: Can the OPA726AID replace the OPA726AIDR in existing designs?

A: Yes. The OPA726AID is electrically and mechanically identical to the OPA726AIDR. All electrical parameters, package dimensions, and pin assignments match exactly. No design modifications are required.

Q: What is the difference between OPA726AIDR and OPA726AID?

A: The primary difference is packaging format and product status. The OPA726AIDR is obsolete, while the OPA726AID is in active production. The OPA726AID is supplied in tube packaging, whereas the OPA726AIDR packaging format is not specified in the provided data. All electrical and functional specifications are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 2, 1 Year). Regulatory and environmental compliance is equivalent.

Q: What is the 8-SOIC package specification?

A: The 8-SOIC package is a surface mount integrated circuit package with 8 pins, measuring 0.154 inches (3.90 mm) in width. This package type is standard for single-channel operational amplifiers and ensures compatibility with automated assembly processes.

Q: Can I use these parts interchangeably in production?

A: Yes. The OPA726AID is the manufacturer-recommended substitute for the OPA726AIDR. Both parts are pin-compatible, electrically equivalent, and suitable for direct substitution in PCB assembly without design changes.

Q: What supply voltage range do these amplifiers support?

A: Both the OPA726AIDR and OPA726AID operate across a supply voltage span of 4 V to 12 V, supporting single or dual supply configurations within this range.

Q: What is the operating temperature range?

A: Both parts operate across the industrial temperature range of -40°C to 125°C, suitable for automotive, industrial, and commercial applications.

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