TLC073AIDR Equivalent & Substitute Parts

Part Overview

The TLC073AIDR is a CMOS amplifier integrated circuit manufactured by Texas Instruments, configured as a 2-circuit operational amplifier in a 14-SOIC surface mount package. This device is classified as obsolete, indicating it is no longer in active production. The identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance where the original component is no longer readily procurable through standard distribution channels.

Substiute Parts

TLC073AIDR

Texas InstrumentsIn Stock: 2170TLC073AIDR Datasheet

Current PartRFQ

AD8273ARZ-RL

Analog Devices Inc.In Stock: 741AD8273ARZ-RL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC073AIDR is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 14-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm Width) to ensure direct PCB footprint compatibility without layout modifications.

Circuit Configuration: The substitute must provide 2 independent amplifier circuits to match the dual-channel architecture of the TLC073AIDR.

Supply Voltage Range: The substitute must operate within or encompass the supply voltage requirements of the original design. The TLC073AIDR operates from 4.5V to 16V; substitutes must support this range or a compatible superset.

Operating Temperature Range: The substitute must support the required temperature range for the application. The TLC073AIDR operates from -40°C to 125°C.

Electrical Performance: Key performance metrics including slew rate, gain bandwidth product, input bias current, input offset voltage, and output current capability must be equal to or exceed the original specifications to ensure functional equivalence in the circuit application.

Compliance and Certifications: Both parts must maintain equivalent RoHS and REACH compliance status to satisfy regulatory and procurement requirements.

The AD8273ARZ-RL from Analog Devices Inc. is identified as a manufacturer-recommended substitute based on these substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility: The AD8273ARZ-RL is a direct substitute for the TLC073AIDR based on identical package geometry, matching circuit count, and compatible electrical performance specifications. Both devices maintain ROHS3 compliance and MSL Level 1 moisture sensitivity ratings, satisfying regulatory and handling requirements.

Supply Voltage Consideration: The AD8273ARZ-RL supports an extended maximum supply voltage of 36V compared to the TLC073AIDR's 16V maximum. The minimum supply voltage for the AD8273ARZ-RL is 5V, which is 0.5V higher than the TLC073AIDR's 4.5V minimum. Applications operating at the lower supply voltage boundary (4.5V to 5V) require verification that the AD8273ARZ-RL's 5V minimum specification is compatible with the circuit design.

Operating Temperature Range: The AD8273ARZ-RL operates to a maximum of 85°C, compared to the TLC073AIDR's 125°C maximum. Applications requiring operation above 85°C are not suitable for this substitute without thermal management modifications or alternative part selection.

Performance Enhancement: The AD8273ARZ-RL provides superior electrical performance in slew rate (20V/µs vs. 19V/µs), gain bandwidth product (20MHz vs. 10MHz), input offset voltage (200µV vs. 390µV), and output current capability (100mA vs. 57mA per channel). These improvements provide design margin and enhanced signal fidelity in applications where the original specifications are met or exceeded.

Product Status: The AD8273ARZ-RL is in active production status, ensuring long-term availability and supply chain continuity compared to the obsolete TLC073AIDR.

Frequently Asked Questions (FAQ)

Q: Can the AD8273ARZ-RL be used as a direct replacement for the TLC073AIDR without PCB modifications?

A: Yes. Both devices use the 14-SOIC package with identical physical dimensions (0.154", 3.90mm Width), enabling direct footprint compatibility. No PCB layout changes are required for package substitution.

Q: What is the primary difference between these two amplifiers?

A: The TLC073AIDR is a general-purpose CMOS amplifier, while the AD8273ARZ-RL is a programmable gain amplifier with enhanced performance specifications. The AD8273ARZ-RL provides higher slew rate, greater gain bandwidth product, lower input offset voltage, and higher output current capability.

Q: Are there supply voltage limitations when substituting the AD8273ARZ-RL?

A: Yes. The AD8273ARZ-RL requires a minimum supply voltage of 5V, whereas the TLC073AIDR operates from 4.5V. Circuits designed to operate at 4.5V supply voltage are not compatible with the AD8273ARZ-RL without supply voltage adjustment. The AD8273ARZ-RL supports supply voltages up to 36V, exceeding the TLC073AIDR's 16V maximum.

Q: Is the AD8273ARZ-RL suitable for high-temperature applications?

A: The AD8273ARZ-RL is rated for operation to 85°C maximum, compared to the TLC073AIDR's 125°C maximum. Applications requiring sustained operation above 85°C require alternative component selection or thermal management strategies.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the TLC073AIDR and AD8273ARZ-RL are ROHS3 compliant and REACH unaffected, with identical MSL Level 1 moisture sensitivity ratings. Both carry EAR99 ECCN classification and 8542.33.0001 HTSUS code.

Q: What is the packaging format difference between these parts?

A: The TLC073AIDR is supplied in standard packaging, while the AD8273ARZ-RL is supplied in Tape & Reel (TR) format. Both use the same 14-SOIC package case. Tape & Reel format is standard for high-volume surface mount assembly operations.

Q: Are there any input bias current differences between these amplifiers?

A: The TLC073AIDR specifies an input bias current of 1.5pA. The AD8273ARZ-RL does not specify input bias current in the provided parameters. Applications with strict input bias current requirements should verify the AD8273ARZ-RL specification against design constraints.