TS1874AIPT Equivalent & Substitute Parts

Part Overview

The TS1874AIPT is a general-purpose operational amplifier manufactured by STMicroelectronics, configured as a 4-circuit rail-to-rail amplifier in a 14-TSSOP surface mount package. This device is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and production continuity. The TS1874AIPT operates across a supply voltage range of 1.8 V to 6 V with an operating temperature range of -40°C to 125°C, making it suitable for low-power analog signal processing applications.

Substiute Parts

TS1874AIPT

STMicroelectronicsIn Stock: 1124TS1874AIPT Datasheet

Current PartRFQ

AD8604ARUZ

Analog Devices Inc.In Stock: 12745AD8604ARUZ Datasheet

SimilarRFQ

AD8648ARUZ

Analog Devices Inc.In Stock: 3652AD8648ARUZ Datasheet

SimilarRFQ

AD8648ARUZ-REEL

Analog Devices Inc.In Stock: 3058AD8648ARUZ-REEL Datasheet

SimilarRFQ

NJM2734V-TE1

Nisshinbo Micro Devices Inc.In Stock: 2735NJM2734V-TE1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS1874AIPT is determined by the following critical parameters: package type (14-TSSOP surface mount), number of circuits (4), output configuration (rail-to-rail), supply voltage range compatibility, and operating temperature range. Substitute parts must maintain the same physical footprint and pin configuration to ensure direct board-level compatibility.

The substitute parts are grouped into two categories based on electrical performance characteristics:

Category 1: Direct General-Purpose Replacements Parts maintaining general-purpose amplifier classification with compatible supply voltage ranges (1.8 V to 6 V) and operating temperature specifications (-40°C to 125°C). These include the NJM2734V-TE1, AD8648ARUZ, and AD8648ARUZ-REEL.

Category 2: Enhanced Performance CMOS Alternative The AD8604ARUZ represents a CMOS-based alternative with improved electrical performance characteristics, including higher slew rate and gain bandwidth product, but with a reduced maximum supply voltage (5.5 V instead of 6 V).

All substitute parts are housed in 14-TSSOP packages with surface mount configuration, ensuring mechanical compatibility with existing PCB designs.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes for Direct Replacement

The AD8648ARUZ and AD8648ARUZ-REEL are recommended as primary substitutes for the TS1874AIPT. Both parts are manufactured by Analog Devices Inc., classified as active products, and maintain ROHS3 compliance. These devices are housed in 14-TSSOP packages with identical mechanical specifications. The AD8648ARUZ-REEL variant is packaged in Cut Tape and Digi-Reel format, while the AD8648ARUZ is supplied in tube packaging. Both variants share identical electrical specifications with superior performance characteristics, including higher slew rate (11 V/µs versus 0.6 V/µs) and gain bandwidth product (24 MHz versus 1.8 MHz). The supply voltage range is reduced to 2.7 V to 5.5 V, which is compatible with most applications originally designed for the TS1874AIPT.

Secondary Substitute for Extended Supply Range

The NJM2734V-TE1 manufactured by Nisshinbo Micro Devices Inc. maintains the full supply voltage range of 1.8 V to 6 V, matching the TS1874AIPT specification. This part is classified as active and housed in a 14-LSSOP package. However, the operating temperature range is limited to -40°C to 85°C, which is narrower than the TS1874AIPT specification of -40°C to 125°C. The NJM2734V-TE1 is suitable for applications requiring the extended supply voltage range but operating within the reduced temperature specification.

Alternative for Enhanced Performance

The AD8604ARUZ represents a CMOS-based alternative with significantly enhanced electrical performance. This device features a slew rate of 6 V/µs and gain bandwidth product of 8.4 MHz, with exceptionally low input bias current (0.2 pA). The supply voltage range is 2.7 V to 5.5 V. The AD8604ARUZ is classified as active and ROHS3 compliant. This part is suitable for applications where improved dynamic performance and reduced input bias current are beneficial, provided the supply voltage range is compatible with the design.

All substitute parts maintain ROHS3 compliance and are currently in active production status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the AD8648ARUZ directly replace the TS1874AIPT on existing PCBs?

A: Yes, the AD8648ARUZ is housed in a 14-TSSOP package with identical pin configuration and mechanical footprint to the TS1874AIPT. Direct board-level substitution is possible without PCB modifications. Both parts are surface mount devices with the same package dimensions (0.173" × 4.40mm width).

Q: What is the primary difference between AD8648ARUZ and AD8648ARUZ-REEL?

A: Both parts are electrically identical with the same specifications and performance characteristics. The difference is in packaging format: AD8648ARUZ is supplied in tube packaging, while AD8648ARUZ-REEL is supplied in Cut Tape and Digi-Reel format. Selection depends on production requirements and handling preferences.

Q: Why is the supply voltage range reduced in the AD8648ARUZ compared to the TS1874AIPT?

A: The AD8648ARUZ operates at a minimum supply voltage of 2.7 V versus 1.8 V for the TS1874AIPT. This is a design characteristic of the Analog Devices device. For applications requiring operation below 2.7 V, the NJM2734V-TE1 maintains the 1.8 V minimum specification.

Q: Is the NJM2734V-TE1 suitable for high-temperature applications?

A: The NJM2734V-TE1 has an operating temperature range of -40°C to 85°C, which is narrower than the TS1874AIPT specification of -40°C to 125°C. For applications requiring operation above 85°C, the AD8648ARUZ or AD8604ARUZ are recommended, as both support the full -40°C to 125°C range.

Q: What are the key performance improvements in the AD8648ARUZ?

A: The AD8648ARUZ provides significantly improved dynamic performance with a slew rate of 11 V/µs (compared to 0.6 V/µs in the TS1874AIPT) and a gain bandwidth product of 24 MHz (compared to 1.8 MHz). Input bias current is reduced to 0.3 pA from 70 nA. These improvements make the AD8648ARUZ suitable for higher-frequency signal processing applications.

Q: Can the AD8604ARUZ be used in place of the TS1874AIPT?

A: The AD8604ARUZ is a CMOS-based alternative with enhanced performance characteristics. While it maintains the 14-TSSOP package and 4-circuit rail-to-rail configuration, the supply voltage range is limited to 2.7 V to 5.5 V. The AD8604ARUZ is suitable for applications where the reduced supply range is acceptable and where the improved slew rate (6 V/µs) and gain bandwidth product (8.4 MHz) provide design benefits.

Q: Are all substitute parts RoHS compliant?

A: The AD8648ARUZ, AD8648ARUZ-REEL, and AD8604ARUZ are all ROHS3 compliant. The NJM2734V-TE1 RoHS status is not specified in the provided data. Compliance verification is recommended for applications with specific regulatory requirements.

Q: What is the difference between 14-TSSOP and 14-LSSOP packages?

A: Both are 14-pin surface mount packages with similar dimensions (0.173" width, 4.40mm). The TSSOP designation indicates Thin Shrink Small Outline Package, while LSSOP indicates Leaded Small Outline Package. The NJM2734V-TE1 uses the 14-LSSOP variant, which is mechanically compatible with 14-TSSOP footprints in most applications, though minor footprint adjustments may be required depending on PCB design specifications.

Q: Which substitute part has the lowest power consumption?

A: The TS1874AIPT has the lowest supply current at 500 µA (across 4 channels). Among the substitutes, the NJM2734V-TE1 has a supply current of 1 mA, the AD8604ARUZ has 750 µA, and the AD8648ARUZ has 1.5 mA. For low-power applications, the TS1874AIPT or NJM2734V-TE1 are preferred.