TS1872IPT Equivalent & Substitute Parts

Part Overview

The TS1872IPT is a general-purpose operational amplifier manufactured by STMicroelectronics, configured as a dual-channel (2 circuit) rail-to-rail amplifier in an 8-TSSOP surface mount package. This device is classified as obsolete, indicating discontinuation from active production. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this amplifier topology.

Substiute Parts

TS1872IPT

STMicroelectronicsIn Stock: 8454TS1872IPT Datasheet

Current PartRFQ

TS1872IYPT

STMicroelectronicsIn Stock: 995TS1872IYPT Datasheet

DirectRFQ

AD8532ARUZ

Analog Devices Inc.In Stock: 1239AD8532ARUZ Datasheet

SimilarRFQ

AD8532ARUZ-REEL

Analog Devices Inc.In Stock: 18181AD8532ARUZ-REEL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS1872IPT is determined by the following critical parameters:

Mechanical Compatibility:

• Package type: 8-TSSOP surface mount
• Package dimensions: 0.173" width, 4.40mm width
• Mounting type: Surface mount

Electrical Compatibility:

• Dual-channel configuration (2 circuits)
• Rail-to-rail output capability
• Supply voltage range: minimum 1.8 V to maximum 6 V
• Operating temperature range: -40°C to 125°C

Regulatory Compliance:

• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Substitute parts must satisfy all mechanical compatibility requirements and operate within the specified electrical parameters. Parts are grouped into two categories: direct manufacturer equivalents from STMicroelectronics and functionally similar alternatives from other manufacturers.

Parameter Comparison

Engineering Selection Recommendations

Direct STMicroelectronics Equivalent:

The TS1872IYPT is the active production equivalent of the TS1872IPT. Both devices share identical electrical specifications, including slew rate (0.6 V/µs), gain bandwidth product (1.8 MHz), input bias current (70 nA), and supply current characteristics. The TS1872IYPT maintains the same operating temperature range (-40°C to 125°C) and supply voltage specifications (1.8 V to 6 V). The primary difference is product status: TS1872IYPT is active production, whereas TS1872IPT is obsolete. The TS1872IYPT is qualified to AEC-Q100 automotive standards, providing additional qualification assurance. Packaging differs only in format: TS1872IYPT is supplied in Tape & Reel (TR) format, while TS1872IPT is supplied in Cut Tape (CT) & Digi-Reel® format. This substitution is direct and requires no circuit redesign.

Analog Devices Alternatives:

The AD8532ARUZ and AD8532ARUZ-REEL are functionally similar dual-channel rail-to-rail amplifiers from Analog Devices Inc. Both devices are in active production status. These alternatives provide enhanced performance characteristics: slew rate of 5 V/µs (compared to 0.6 V/µs), gain bandwidth product of 3 MHz (compared to 1.8 MHz), and significantly lower input bias current of 5 pA (compared to 70 nA). Output current capability is substantially higher at 250 mA per channel (compared to 80 mA). However, the AD8532 series has a minimum supply voltage requirement of 2.7 V (compared to 1.8 V for TS1872IPT) and a reduced operating temperature maximum of 85°C (compared to 125°C for TS1872IPT). Both AD8532 variants are RoHS3 compliant with MSL rating of 1. The AD8532ARUZ is packaged in Tube format, while AD8532ARUZ-REEL is supplied in Cut Tape (CT) & Digi-Reel® format. Selection of AD8532 alternatives is appropriate when enhanced performance specifications and active production status are prioritized, provided the reduced minimum supply voltage and operating temperature range are compatible with the application.

Frequently Asked Questions (FAQ)

Q: Can the TS1872IYPT be used as a direct replacement for the TS1872IPT?

A: Yes. The TS1872IYPT is the active production equivalent of the TS1872IPT. Both devices have identical electrical specifications, including slew rate, gain bandwidth product, input bias current, supply current, and operating temperature range. The only differences are product status (active versus obsolete) and packaging format (Tape & Reel versus Cut Tape & Digi-Reel). No circuit modifications are required.

Q: What are the key differences between the TS1872IPT and AD8532ARUZ?

A: The AD8532ARUZ offers superior performance in several areas: slew rate is 5 V/µs versus 0.6 V/µs, gain bandwidth product is 3 MHz versus 1.8 MHz, input bias current is 5 pA versus 70 nA, and output current per channel is 250 mA versus 80 mA. However, the AD8532ARUZ has a higher minimum supply voltage requirement (2.7 V versus 1.8 V) and a lower maximum operating temperature (85°C versus 125°C). Both devices use the same 8-TSSOP package and are RoHS3 compliant.

Q: Are the TS1872IPT and AD8532ARUZ pin-compatible?

A: Both devices use the 8-TSSOP package with identical physical dimensions (0.173" width, 4.40mm width). Pin compatibility for dual-channel rail-to-rail amplifiers in this package is standard. However, electrical parameter differences (particularly supply voltage range and operating temperature) must be verified against application requirements before substitution.

Q: What is the significance of the TS1872IPT being classified as obsolete?

A: Obsolete status indicates that STMicroelectronics has discontinued active production of the TS1872IPT. The TS1872IYPT is the active production replacement. For new designs or ongoing production requiring this amplifier topology, the TS1872IYPT is the recommended choice to ensure long-term supply availability and support.

Q: Does the AD8532ARUZ-REEL differ from the AD8532ARUZ in electrical performance?

A: No. The AD8532ARUZ and AD8532ARUZ-REEL have identical electrical specifications. The difference is packaging format: AD8532ARUZ is supplied in Tube packaging, while AD8532ARUZ-REEL is supplied in Cut Tape (CT) & Digi-Reel® format. Selection between these variants depends on procurement and assembly requirements.

Q: Can the TS1872IPT operate at supply voltages below 2.7 V?

A: Yes. The TS1872IPT has a minimum supply voltage specification of 1.8 V, allowing operation in low-voltage applications. The AD8532ARUZ series has a higher minimum supply voltage of 2.7 V and therefore cannot be used in applications requiring operation below 2.7 V.

Q: What is the operating temperature range difference between TS1872IPT and AD8532ARUZ?

A: The TS1872IPT operates from -40°C to 125°C, while the AD8532ARUZ operates from -40°C to 85°C. Applications requiring operation above 85°C must use the TS1872IPT or TS1872IYPT. The AD8532 series is not suitable for high-temperature applications exceeding 85°C.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The TS1872IPT, TS1872IYPT, AD8532ARUZ, and AD8532ARUZ-REEL are all RoHS3 compliant with Moisture Sensitivity Level (MSL) rating of 1 (Unlimited). All parts meet current environmental and regulatory requirements.