TS9224ID Equivalent & Substitute Parts

Part Overview

The TS9224ID is a general-purpose operational amplifier manufactured by STMicroelectronics, configured as a 4-circuit rail-to-rail amplifier in a 14-SO surface mount package. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement requirements. The TS9224ID is qualified to AEC-Q100 automotive standards and operates across a supply voltage range of 2.7 V to 12 V with an operating temperature range of -40°C to 125°C.

Substiute Parts

TS9224ID

STMicroelectronicsIn Stock: 698TS9224ID Datasheet

Current PartRFQ

LMC6494AEMX/NOPB

National SemiconductorIn Stock: 3440LMC6494AEMX/NOPB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS9224ID is determined by the following critical parameters that must be maintained or exceeded in equivalent devices:

Functional Requirements:

• 4-circuit operational amplifier configuration
• Rail-to-rail output capability
• Surface mount packaging in 14-SOIC form factor with 0.154" (3.90mm) width

Electrical Performance Criteria:

• Slew rate of 1.3 V/µs or greater
• Gain bandwidth product of 4 MHz or greater
• Input bias current of 15 nA or lower
• Input offset voltage of 500 µV or lower
• Output current per channel of 80 mA or greater
• Supply voltage range encompassing 2.7 V to 12 V minimum

Environmental & Compliance Requirements:

• Operating temperature range of -40°C to 125°C
• RoHS3 compliance
• Surface mount technology

The LMC6494AEMX/NOPB meets these substitution criteria through equivalent circuit count, package geometry, and electrical performance specifications that satisfy or exceed the TS9224ID requirements.

Parameter Comparison

Engineering Selection Recommendations

The LMC6494AEMX/NOPB is a direct functional substitute for the obsolete TS9224ID based on the following engineering criteria:

Package Compatibility: Both devices utilize identical 14-SOIC surface mount packaging with 0.154" (3.90mm) width, enabling direct board-level substitution without layout modifications.

Circuit Configuration: Both devices provide 4-circuit operational amplifier configurations with rail-to-rail output capability, maintaining functional equivalence in multi-stage amplifier applications.

Electrical Performance: The LMC6494AEMX/NOPB demonstrates superior electrical characteristics in several parameters: input bias current of 0.15 pA versus 15 nA, input offset voltage of 110 µV versus 500 µV, and an expanded maximum supply voltage of 15.5 V versus 12 V. The slew rate remains identical at 1.3 V/µs. The gain bandwidth product of 1.5 MHz is lower than the TS9224ID specification of 4 MHz; this difference must be evaluated against specific application bandwidth requirements.

Output Current Limitation: The LMC6494AEMX/NOPB provides 30 mA per channel output current compared to 80 mA for the TS9224ID. Applications requiring the full 80 mA output current per channel must be reassessed for compatibility.

Temperature Range: Both devices operate across the identical -40°C to 125°C temperature range, supporting automotive and industrial applications.

Product Status: The LMC6494AEMX/NOPB maintains active product status with 3,425 units in stock, providing long-term availability compared to the obsolete TS9224ID status.

Frequently Asked Questions (FAQ)

Q: Can the LMC6494AEMX/NOPB be used as a direct replacement for the TS9224ID without circuit modifications?

A: The LMC6494AEMX/NOPB is pin-compatible and functionally equivalent for most applications. However, two parameters require evaluation: the gain bandwidth product is reduced from 4 MHz to 1.5 MHz, and the output current per channel is reduced from 80 mA to 30 mA. Applications dependent on these specifications must be reassessed.

Q: What is the primary difference between the TS9224ID and LMC6494AEMX/NOPB?

A: The TS9224ID is a general-purpose amplifier, while the LMC6494AEMX/NOPB is a CMOS amplifier. The CMOS architecture provides significantly lower input bias current (0.15 pA versus 15 nA) and lower input offset voltage (110 µV versus 500 µV), making it suitable for high-impedance input applications. The trade-off is reduced output current capability and lower gain bandwidth product.

Q: Are both devices available in the same package?

A: Yes. Both the TS9224ID and LMC6494AEMX/NOPB are packaged in 14-SOIC (0.154", 3.90mm width) surface mount configuration, enabling direct board-level substitution.

Q: What is the supply voltage compatibility between these devices?

A: The TS9224ID operates from 2.7 V to 12 V, while the LMC6494AEMX/NOPB operates from 2.5 V to 15.5 V. The LMC6494AEMX/NOPB provides a wider supply voltage range and is compatible with all TS9224ID supply configurations.

Q: Why is the gain bandwidth product lower in the LMC6494AEMX/NOPB?

A: The LMC6494AEMX/NOPB is a CMOS-based design optimized for low power consumption and low input bias current. The 1.5 MHz gain bandwidth product is a characteristic of this architecture. Applications requiring 4 MHz bandwidth must evaluate whether the LMC6494AEMX/NOPB meets frequency response requirements.

Q: What is the impact of reduced output current on circuit design?

A: The LMC6494AEMX/NOPB provides 30 mA per channel versus 80 mA for the TS9224ID. Applications driving low-impedance loads or requiring high output current must either use external buffering or select an alternative device capable of the required output current.

Q: Is the LMC6494AEMX/NOPB suitable for automotive applications?

A: The LMC6494AEMX/NOPB is not specified with automotive qualification in the provided data. The TS9224ID carries AEC-Q100 automotive qualification. Applications requiring automotive-grade components should confirm qualification status with the manufacturer.