TS103CS RLG Equivalent & Substitute Parts

Part Overview

The TS103CS RLG is a general-purpose operational amplifier integrated circuit manufactured by Taiwan Semiconductor Corporation, configured as a dual-channel amplifier in an 8-SOP surface-mount package. This device is classified as obsolete, which necessitates identification of functionally equivalent substitute components for ongoing design support and production continuity. The TS103CS RLG operates across a supply voltage range of 3V to 18V with a slew rate of 0.5V/µs and a gain-bandwidth product of 1 MHz, making it suitable for general-purpose analog signal processing applications.

Substiute Parts

TS103CS RLG

Taiwan Semiconductor CorporationIn Stock: 17904TS103CS RLG Datasheet

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LM2904AVQDRQ1

Texas InstrumentsIn Stock: 40301LM2904AVQDRQ1 Datasheet

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TLC27M2AID

Texas InstrumentsIn Stock: 5158TLC27M2AID Datasheet

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TLC27M2BCDR

Texas InstrumentsIn Stock: 2709TLC27M2BCDR Datasheet

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TLC27M2CD

Texas InstrumentsIn Stock: 3119TLC27M2CD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS103CS RLG is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Dual-channel (2 circuit) configuration
• Input bias current of 20 nA or lower
• Supply voltage range encompassing the minimum 3V requirement
• Output current capability of 30 mA or greater per channel
• Operating temperature range covering -40°C to 85°C
• Package compatibility: 8-SOIC (0.154", 3.90mm Width) surface-mount form factor

Mechanical Compatibility Criteria:

• Identical 8-SOIC package footprint
• Surface-mount technology
• Pin-compatible pinout

The substitute parts identified below satisfy these criteria with varying degrees of parameter overlap. Substitutes are grouped by amplifier technology type (general-purpose bipolar versus CMOS) and product status (active versus last-time-buy).

Parameter Comparison

Engineering Selection Recommendations

LM2904AVQDRQ1 (Texas Instruments)

The LM2904AVQDRQ1 is an active-status general-purpose dual operational amplifier that maintains electrical compatibility with the TS103CS RLG across critical parameters: dual-channel configuration, 20 nA input bias current, 500 µA supply current per channel, and 8-SOIC package footprint. This device features an extended maximum supply voltage of 26V and an expanded operating temperature range to 125°C. The LM2904AVQDRQ1 carries AEC-Q100 automotive qualification and is suitable for applications requiring automotive-grade reliability. This substitute is recommended for designs requiring active product status and extended temperature performance.

TLC27M2BCDR (Texas Instruments)

The TLC27M2BCDR is an active-status CMOS dual operational amplifier in the LinCMOS™ series, packaged in tape and reel format. This device meets the 8-SOIC package requirement and maintains dual-channel configuration. The TLC27M2BCDR exhibits significantly lower input bias current (0.7 pA versus 20 nA) and reduced supply current (285 µA per channel versus 500 µA), making it suitable for low-power applications. The operating temperature range is 0°C to 70°C, which is narrower than the TS103CS RLG. This substitute is recommended for production designs where active product status and low-power operation are priorities.

TLC27M2AID (Texas Instruments)

The TLC27M2AID is a last-time-buy CMOS dual operational amplifier in the LinCMOS™ series, supplied in tube packaging. This device shares the same electrical characteristics as the TLC27M2BCDR, including 0.7 pA input bias current and 285 µA supply current per channel. The operating temperature range is -40°C to 85°C, matching the TS103CS RLG specification. The TLC27M2AID is suitable for applications requiring extended low-temperature operation and CMOS technology benefits. Last-time-buy status indicates limited future availability.

TLC27M2CD (Texas Instruments)

The TLC27M2CD is a last-time-buy CMOS dual operational amplifier in the LinCMOS™ series, supplied in tube packaging. This device exhibits identical electrical characteristics to the TLC27M2BCDR and TLC27M2AID, with 0.7 pA input bias current and 285 µA supply current per channel. The operating temperature range is 0°C to 70°C. This substitute is suitable for applications where CMOS technology and low-power operation are required, with the understanding that last-time-buy status limits future procurement options.

Frequently Asked Questions (FAQ)

Q: Can the LM2904AVQDRQ1 directly replace the TS103CS RLG in all applications?

A: The LM2904AVQDRQ1 is electrically and mechanically compatible with the TS103CS RLG for dual-channel general-purpose amplification. Both devices share the same 8-SOIC package footprint, dual-channel configuration, and 20 nA input bias current specification. The LM2904AVQDRQ1 features a higher maximum supply voltage (26V versus 18V) and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). Applications operating within the TS103CS RLG supply and temperature specifications will function identically with the LM2904AVQDRQ1.

Q: What are the key differences between the general-purpose LM2904AVQDRQ1 and the CMOS TLC27M2 series substitutes?

A: The LM2904AVQDRQ1 is a bipolar general-purpose amplifier with 20 nA input bias current and 500 µA supply current per channel. The TLC27M2 series (TLC27M2BCDR, TLC27M2AID, TLC27M2CD) are CMOS amplifiers with significantly lower input bias current (0.7 pA) and reduced supply current (285 µA per channel). CMOS devices are preferred for low-power and high-impedance applications. Both technology types are pin-compatible in the 8-SOIC package.

Q: Are all substitute parts available in the same packaging format as the TS103CS RLG?

A: All substitute parts are available in the 8-SOIC surface-mount package, which is mechanically identical to the TS103CS RLG. However, packaging formats differ: the LM2904AVQDRQ1 is supplied in cut tape and digi-reel format; the TLC27M2BCDR is supplied in tape and reel format; the TLC27M2AID and TLC27M2CD are supplied in tube format. These packaging differences do not affect electrical or mechanical compatibility on the printed circuit board.

Q: Which substitute part has the longest operating temperature range?

A: The LM2904AVQDRQ1 has the extended operating temperature range of -40°C to 125°C, compared to the TS103CS RLG specification of -40°C to 85°C. The TLC27M2AID also covers -40°C to 85°C. The TLC27M2BCDR and TLC27M2CD are limited to 0°C to 70°C.

Q: What is the significance of "last-time-buy" product status for the TLC27M2AID and TLC27M2CD?

A: Last-time-buy status indicates that the manufacturer has announced the end of production for these devices. Existing inventory may be available for purchase, but no new production runs are planned. Designs utilizing last-time-buy components should transition to active-status alternatives (such as TLC27M2BCDR or LM2904AVQDRQ1) for long-term production sustainability.

Q: Can the TS103CS RLG be used in automotive applications?

A: The TS103CS RLG does not carry automotive qualification. The LM2904AVQDRQ1 is qualified to AEC-Q100 automotive standards and is suitable for automotive applications. If automotive-grade reliability is required, the LM2904AVQDRQ1 is the appropriate substitute.

Q: What is the impact of lower output current capability in the TLC27M2 series?

A: The TLC27M2 series devices provide 30 mA output current per channel, compared to 40 mA for the TS103CS RLG. Applications requiring output currents between 30 mA and 40 mA per channel must use the TS103CS RLG or LM2904AVQDRQ1. Applications with output current requirements of 30 mA or less are compatible with all substitute parts.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed (LM2904AVQDRQ1, TLC27M2BCDR, TLC27M2AID, TLC27M2CD) are ROHS3 compliant, matching the TS103CS RLG compliance status.