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TS934AIPT Equivalent & Substitute Parts
Part Overview
The TS934AIPT is a general-purpose operational amplifier manufactured by STMicroelectronics, configured as a quad (4-circuit) rail-to-rail amplifier in a 14-TSSOP surface mount package. This device is classified as obsolete, indicating that STMicroelectronics has discontinued production. The TS934AIPT is qualified to AEC-Q100 automotive standards and operates across a supply voltage range of 2.7 V to 10 V with an operating temperature range of -40°C to 105°C. Due to its obsolete status, equivalent and substitute parts are necessary for ongoing design support, production continuity, and component sourcing.
Substiute Parts
Key Parameters
| Parameter | TS934AIPT Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | — |
| Mounting Type | Surface Mount | — |
| Slew Rate | 0.05 | V/µs |
| Gain Bandwidth Product | 100 | kHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 3 | mV |
| Current - Supply | 20 | µA (x4 Channels) |
| Current - Output / Channel | 5 | mA |
| Voltage - Supply Span (Min) | 2.7 | V |
| Voltage - Supply Span (Max) | 10 | V |
| Operating Temperature | -40 to 105 | °C |
| Grade | Automotive | — |
| Qualification | AEC-Q100 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | — |
Substitute Part Grouping Explanation
Substitution of the TS934AIPT is determined by strict adherence to the following critical parameters:
Mandatory Matching Parameters:
- Number of Circuits: 4 (quad configuration)
- Output Type: Rail-to-Rail
- Package / Case: 14-TSSOP (0.173", 4.40mm Width)
- Mounting Type: Surface Mount
- Voltage - Supply Span (Min): 2.7 V minimum
- Voltage - Supply Span (Max): 10 V minimum (TS934AIPT operates to 10 V; substitutes must support at least this range)
Allowable Parameter Variations: Substitute parts may exceed the TS934AIPT specifications in the following parameters without compromising compatibility:
- Slew Rate: Higher values are acceptable
- Gain Bandwidth Product: Higher values are acceptable
- Current - Input Bias: Lower values are acceptable
- Voltage - Input Offset: Lower values are acceptable
- Current - Supply: Lower values are acceptable
- Current - Output / Channel: Higher values are acceptable
- Operating Temperature (upper limit): Extended ranges are acceptable
Compliance Considerations: All substitute parts must maintain RoHS3 compliance and surface mount 14-TSSOP packaging. Automotive grade and AEC-Q100 qualification are preferred for applications requiring automotive-grade components.
Parameter Comparison
| Parameter | TS934AIPT | TS924AIPT | LMP7704MT/NOPB | LMP7704MTX/NOPB | LMV844MT/NOPB | LMV844MTX/NOPB | OP496HRUZ-REEL | Unit |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | Texas Instruments | Texas Instruments | Texas Instruments | National Semiconductor | Analog Devices Inc. | — |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | — |
| Number of Circuits | 4 | 4 | 4 | 4 | 4 | 4 | 4 | — |
| Output Type | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | — |
| Package / Case | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP | — |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | — |
| Slew Rate | 0.05 | 1.3 | 1.1 | 1.1 | 2.5 | 2.5 | 0.3 | V/µs |
| Gain Bandwidth Product | 100 | 4 | 2.5 | 2.5 | 4.5 | 4.5 | 450 | kHz |
| Current - Input Bias | 1 | 15 | 0.2 | 0.2 | 4 | 4 | 10 | nA / pA |
| Voltage - Input Offset | 3 | 0.9 | 0.037 | 0.037 | 0.05 | 0.05 | 0.035 | mV / µV |
| Current - Supply | 20 | 1 | 3.2 | 3.2 | 1.03 | 1.03 | — | µA / mA |
| Current - Output / Channel | 5 | 80 | 86 | 86 | 37 | 37 | 4 | mA |
| Voltage - Supply Span (Min) | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 3 | V |
| Voltage - Supply Span (Max) | 10 | 12 | 12 | 12 | 12 | 12 | 12 | V |
| Operating Temperature | -40 to 105 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | °C |
| Grade | Automotive | Automotive | — | — | — | Automotive | — | — |
| Qualification | AEC-Q100 | AEC-Q100 | — | — | — | AEC-Q100 | — | — |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | — |
Engineering Selection Recommendations
Primary Substitute: TS924AIPT
The TS924AIPT is the recommended primary substitute for the obsolete TS934AIPT. Both devices are manufactured by STMicroelectronics and share identical package, pinout, and mounting specifications. The TS924AIPT maintains automotive-grade classification and AEC-Q100 qualification, ensuring compliance with automotive applications. The TS924AIPT is in active production status, providing long-term component availability. The TS924AIPT exceeds TS934AIPT performance specifications across all dynamic parameters (slew rate, gain bandwidth product, output current) while maintaining backward compatibility. The maximum supply voltage is extended to 12 V, providing additional design flexibility. The TS924AIPT features improved moisture sensitivity (MSL 1 versus MSL 3), reducing handling and storage constraints.
Secondary Substitutes: LMV844MTX/NOPB and LMV844MT/NOPB
The LMV844 series from National Semiconductor and Texas Instruments provides equivalent functionality with automotive-grade qualification (LMV844MTX/NOPB only) and AEC-Q100 certification. These devices deliver superior performance characteristics including higher slew rate (2.5 V/µs) and gain bandwidth product (4.5 MHz). The LMV844 series maintains the 14-TSSOP package and rail-to-rail output configuration. MSL 1 rating eliminates moisture sensitivity constraints. The LMV844MTX/NOPB variant includes automotive-grade designation and AEC-Q100 qualification, making it suitable for automotive applications requiring certified components.
Tertiary Substitutes: LMP7704MT/NOPB and LMP7704MTX/NOPB
The LMP7704 series from Texas Instruments offers quad rail-to-rail amplifier functionality in the 14-TSSOP package. These devices provide excellent input offset voltage performance (37 µV) and low input bias current (0.2 pA). The LMP7704 series operates across the required supply voltage range and temperature specifications. However, these devices lack automotive-grade designation and AEC-Q100 qualification, limiting their use to non-automotive applications or applications where automotive certification is not required.
Alternative Substitute: OP496HRUZ-REEL
The OP496HRUZ-REEL from Analog Devices Inc. is a CMOS amplifier providing quad rail-to-rail output in the 14-TSSOP package. This device operates across the required supply voltage and temperature ranges. The OP496 features low input offset voltage (35 µV) and low input bias current (10 nA). However, the OP496HRUZ-REEL has a minimum supply voltage of 3 V (versus 2.7 V for TS934AIPT), which may limit compatibility in applications requiring operation below 3 V. The OP496 lacks automotive-grade designation and AEC-Q100 qualification.
Frequently Asked Questions (FAQ)
Q: Can the TS924AIPT directly replace the TS934AIPT in existing designs?
A: Yes. The TS924AIPT shares identical pinout, package (14-TSSOP), and mounting configuration with the TS934AIPT. Both devices are quad rail-to-rail amplifiers with surface mount technology. The TS924AIPT exceeds TS934AIPT performance specifications, ensuring functional compatibility. No PCB redesign is required.
Q: What is the key difference between TS934AIPT and TS924AIPT?
A: The TS934AIPT is obsolete; the TS924AIPT is in active production. The TS924AIPT provides superior performance (higher slew rate, higher gain bandwidth product, higher output current) and extended supply voltage range (12 V maximum versus 10 V). Both maintain automotive-grade qualification and AEC-Q100 certification.
Q: Are the LMV844 devices suitable for automotive applications?
A: The LMV844MTX/NOPB variant includes automotive-grade designation and AEC-Q100 qualification, making it suitable for automotive applications. The LMV844MT/NOPB variant lacks these certifications and is suitable for non-automotive applications only.
Q: What is the significance of MSL (Moisture Sensitivity Level) rating?
A: MSL rating indicates moisture sensitivity during storage and handling. The TS934AIPT has MSL 3 (168-hour floor life), requiring controlled storage conditions. All substitute parts listed have MSL 1 (unlimited floor life), eliminating moisture sensitivity constraints and reducing handling complexity.
Q: Can the OP496HRUZ-REEL replace the TS934AIPT in all applications?
A: The OP496HRUZ-REEL has a minimum supply voltage of 3 V, while the TS934AIPT operates down to 2.7 V. Applications requiring operation below 3 V cannot use the OP496HRUZ-REEL. Additionally, the OP496 lacks automotive-grade and AEC-Q100 qualification.
Q: What is the difference between LMP7704MT/NOPB and LMP7704MTX/NOPB?
A: Both devices are electrically identical. The primary difference is packaging: LMP7704MT/NOPB is supplied in Tube packaging, while LMP7704MTX/NOPB is supplied in Tape & Reel (TR) packaging. Electrical specifications, performance characteristics, and compliance ratings are identical.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed (TS924AIPT, LMP7704MT/NOPB, LMP7704MTX/NOPB, LMV844MT/NOPB, LMV844MTX/NOPB, OP496HRUZ-REEL) are ROHS3 compliant, meeting environmental and regulatory requirements.
Q: Which substitute offers the best performance improvement over the TS934AIPT?
A: The LMV844 series (LMV844MT/NOPB and LMV844MTX/NOPB) provides the highest slew rate (2.5 V/µs) and gain bandwidth product (4.5 MHz), representing the most significant performance improvement. For automotive applications, the LMV844MTX/NOPB is recommended due to automotive-grade and AEC-Q100 qualification.
Q: Can substitute parts operate at the TS934AIPT's maximum supply voltage of 10 V?
A: Yes. All substitute parts support supply voltages up to 12 V, exceeding the TS934AIPT's 10 V maximum. All substitutes are fully compatible with 10 V operation.
Q: What is the operating temperature range difference between TS934AIPT and substitutes?
A: The TS934AIPT operates from -40°C to 105°C. All substitute parts extend the upper temperature limit to 125°C, providing improved thermal performance margin. This extended range does not affect compatibility; applications operating within the TS934AIPT range function identically with substitutes.
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