TLC073IN Equivalent & Substitute Parts

Part Overview

The TLC073IN is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, housed in a 14-DIP through-hole package. This device is classified as a Last Time Buy product, indicating discontinued production with limited remaining inventory (1538 pcs). The TLC073IN serves applications requiring low-power CMOS amplification with specified slew rate and bandwidth characteristics across industrial and commercial temperature ranges. Identification of equivalent substitute parts is necessary due to the Last Time Buy status and to support design flexibility across different packaging and mounting requirements.

Substiute Parts

TLC073IN

Texas InstrumentsIn Stock: 1636TLC073IN Datasheet

Current PartRFQ

TLC073IDGQR

Texas InstrumentsIn Stock: 5704TLC073IDGQR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC073IN with alternative part numbers is determined by electrical parameter equivalence and functional compatibility. The TLC073 base product family maintains identical core electrical specifications across different package and mounting configurations. Substitute parts must satisfy the following criteria:

Electrical Equivalence Requirements:

• Amplifier Type: CMOS (dual-channel configuration)
• Slew Rate: 19 V/µs
• Gain Bandwidth Product: 10 MHz
• Input Bias Current: 1.5 pA
• Input Offset Voltage: 390 µV
• Supply Current: 2.1 mA (x2 Channels)
• Output Current per Channel: 57 mA
• Supply Voltage Range: 4.5 V to 16 V
• Operating Temperature: -40°C to 125°C

Functional Compatibility: All substitute parts share the TLC073 base product number, confirming identical internal circuit topology and electrical performance. Substitution is valid when the alternative part number maintains all specified electrical parameters while differing only in packaging type, mounting method, or product status classification.

Parameter Comparison

Engineering Selection Recommendations

For Through-Hole PCB Designs: The TLC073IN remains the appropriate selection when PCB layout requires through-hole mounting technology. Current inventory of 1538 pcs supports production requirements for designs committed to DIP packaging. However, the Last Time Buy status indicates this part will reach end-of-life, requiring transition planning to alternative package configurations for long-term production sustainability.

For Surface-Mount PCB Designs: The TLC073IDGQR provides electrical equivalence with surface-mount capability in a 10-HVSSOP package. This part is classified as Active product status with higher inventory availability (5624 pcs), ensuring supply continuity. The TLC073IDGQR carries Automotive grade qualification and AEC-Q100 certification, meeting automotive industry reliability standards. Selection of TLC073IDGQR is appropriate for new designs or production transitions requiring surface-mount technology.

Compliance Considerations: Both parts maintain ROHS3 compliance and REACH unaffected status. The TLC073IDGQR includes automotive-grade qualification, which may be required for applications in automotive or safety-critical environments. The TLC073IN does not specify automotive qualification and should be evaluated against application requirements.

Supply Chain Strategy: Given the Last Time Buy status of TLC073IN, designs currently using this part should plan transition to TLC073IDGQR or equivalent active-status alternatives to ensure long-term component availability and production continuity.

Frequently Asked Questions (FAQ)

Q: Can TLC073IDGQR directly replace TLC073IN in existing designs?

A: Electrical substitution is valid. All specified electrical parameters are identical. However, physical substitution requires PCB redesign due to different mounting types (surface-mount vs. through-hole) and package footprints (10-HVSSOP vs. 14-DIP). Pin configuration differences must be verified against the device datasheets before implementation.

Q: What is the significance of the Last Time Buy status on TLC073IN?

A: Last Time Buy indicates Texas Instruments has discontinued production of this part. Existing inventory will be depleted, and the part will become unavailable. Designs currently using TLC073IN should transition to active-status alternatives such as TLC073IDGQR to ensure long-term supply availability.

Q: Are there electrical performance differences between TLC073IN and TLC073IDGQR?

A: No. Both parts share identical electrical specifications including slew rate (19 V/µs), gain bandwidth product (10 MHz), input bias current (1.5 pA), input offset voltage (390 µV), supply current (2.1 mA), output current (57 mA), and operating temperature range (-40°C to 125°C). Differences exist only in packaging, mounting method, and product status.

Q: Why does TLC073IDGQR have automotive qualification while TLC073IN does not?

A: The TLC073IDGQR is qualified to AEC-Q100 automotive standards and carries Automotive grade designation. This reflects Texas Instruments' qualification of the surface-mount variant for automotive applications. The TLC073IN through-hole variant does not carry this designation in the provided specifications. Application requirements should determine whether automotive qualification is necessary.

Q: What are the PCB layout implications of switching from TLC073IN to TLC073IDGQR?

A: The TLC073IN uses 14-DIP through-hole packaging requiring DIP sockets or through-hole pads. The TLC073IDGQR uses 10-HVSSOP surface-mount packaging requiring SMD pads and reflow soldering. PCB footprint, trace routing, and assembly process must be redesigned. Pin mapping between the two packages must be verified against device datasheets to ensure correct signal routing.

Q: Is the TLC073IDGQR suitable for high-volume production?

A: Yes. The TLC073IDGQR is classified as Active product status with 5624 pcs in stock, indicating ongoing production and supply availability. Tape & Reel packaging supports automated assembly processes typical of high-volume manufacturing. Surface-mount technology enables higher PCB density and faster assembly compared to through-hole alternatives.

Q: What is the MSL rating difference between these parts?

A: The TLC073IN lists MSL as Not Applicable, indicating through-hole components do not require moisture sensitivity management. The TLC073IDGQR has MSL 1 (Unlimited), meaning it has unlimited floor life and does not require special moisture control during storage or handling. This simplifies supply chain management for the surface-mount variant.