TS934BID Equivalent & Substitute Parts

Part Overview

The TS934BID is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring four independent amplifier circuits in a 14-SOIC surface-mount package. This device is designed for rail-to-rail output operation across a 2.7V to 10V supply range and is qualified to automotive-grade standards (AEC-Q100). The TS934BID is classified as obsolete, making identification of functionally compatible substitute components essential for ongoing design support, production continuity, and system maintenance.

Substiute Parts

TS934BID

STMicroelectronicsIn Stock: 932TS934BID Datasheet

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MAX44243ASD+

Analog Devices Inc./Maxim IntegratedIn Stock: 2101MAX44243ASD+ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS934BID is determined by strict alignment of the following electrical and mechanical parameters:

Mandatory Matching Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 4 independent amplifier channels
• Output Type: Rail-to-Rail
• Package / Case: 14-SOIC form factor with 0.154" (3.90mm) width
• Mounting Type: Surface Mount
• Minimum Supply Voltage: 2.7V or lower
• RoHS Compliance: ROHS3 Compliant

Allowable Parameter Variations: Substitute parts may exceed the TS934BID specifications in the following parameters without compromising functional compatibility:

• Slew Rate (higher values acceptable)
• Gain Bandwidth Product (higher values acceptable)
• Current - Input Bias (higher values acceptable)
• Voltage - Input Offset (lower values preferred but higher acceptable)
• Current - Supply (higher values acceptable)
• Current - Output / Channel (higher values acceptable)
• Maximum Supply Voltage (higher values acceptable)
• Operating Temperature Range (extended ranges acceptable)

The MAX44243ASD+ meets all mandatory matching criteria and is therefore qualified as a direct substitute for the TS934BID.

Parameter Comparison

Engineering Selection Recommendations

TS934BID Status Consideration: The TS934BID is classified as obsolete. The MAX44243ASD+ is an active product from Analog Devices Inc./Maxim Integrated, ensuring ongoing availability, manufacturing support, and technical documentation.

Compliance and Certification: Both the TS934BID and MAX44243ASD+ are ROHS3 compliant and REACH unaffected. Both devices carry identical moisture sensitivity levels (MSL 1 - Unlimited), eliminating handling and storage requirement changes during substitution.

Electrical Performance: The MAX44243ASD+ provides superior electrical performance across multiple parameters: 76× higher slew rate (3.8V/µs vs. 0.05V/µs), 50× higher gain bandwidth product (5MHz vs. 100kHz), and 40× higher output current per channel (40mA vs. 5mA). These enhancements maintain backward compatibility while enabling designs with improved dynamic response and output drive capability.

Supply Voltage Compatibility: The MAX44243ASD+ supports the full TS934BID supply range (2.7V minimum) and extends the maximum supply voltage to 36V, providing design flexibility for systems requiring higher supply voltages.

Thermal Performance: The MAX44243ASD+ extends the maximum operating temperature to 125°C, compared to the TS934BID's 105°C limit, supporting applications with elevated ambient temperature requirements.

Package and Mounting: Both devices utilize identical 14-SOIC surface-mount packaging with 0.154" (3.90mm) width, ensuring direct mechanical and electrical compatibility without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can the MAX44243ASD+ directly replace the TS934BID without PCB modifications?

A: Yes. Both devices share identical 14-SOIC surface-mount packaging with 0.154" (3.90mm) width. Pin-to-pin compatibility is maintained, allowing direct substitution without PCB layout changes.

Q: What is the primary reason for substituting the TS934BID?

A: The TS934BID is classified as obsolete. The MAX44243ASD+ is an active product with guaranteed long-term availability, manufacturing continuity, and technical support from Analog Devices Inc./Maxim Integrated.

Q: Are there any compliance or regulatory differences between these devices?

A: No. Both devices are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Substitution does not introduce compliance or regulatory changes.

Q: How do the electrical performance differences affect circuit design?

A: The MAX44243ASD+ provides higher slew rate (3.8V/µs vs. 0.05V/µs), higher gain bandwidth product (5MHz vs. 100kHz), and higher output current per channel (40mA vs. 5mA). These improvements enable faster signal processing and higher output drive capability. Existing circuit designs remain functional; the enhanced performance provides design margin and supports higher-frequency applications.

Q: What is the impact of the extended supply voltage range on the MAX44243ASD+?

A: The MAX44243ASD+ supports supply voltages up to 36V, compared to the TS934BID's 10V maximum. This extended range enables use in higher-voltage system designs. For applications using the TS934BID's 2.7V to 10V range, the MAX44243ASD+ operates identically.

Q: Are there any thermal considerations when substituting these devices?

A: The MAX44243ASD+ extends the maximum operating temperature to 125°C, compared to the TS934BID's 105°C. This provides additional thermal margin for high-temperature applications. For systems operating within the TS934BID's -40°C to 105°C range, the MAX44243ASD+ provides equivalent thermal performance.

Q: Does the higher supply current of the MAX44243ASD+ affect power supply design?

A: The MAX44243ASD+ draws 420µA total supply current compared to the TS934BID's 20µA. Power supply designs must accommodate this increased current draw. For battery-powered or ultra-low-power applications, this difference may require power supply recalculation.

Q: Are the input offset voltage differences significant for precision applications?

A: The MAX44243ASD+ specifies 1µV input offset voltage compared to the TS934BID's 2mV. This represents superior input precision. For applications requiring the TS934BID's 2mV specification, the MAX44243ASD+ provides improved performance with no design impact.