TS1872IN Equivalent & Substitute Parts

Part Overview

The TS1872IN is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring dual circuits in an 8-Mini DIP through-hole package. This device is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and production continuity. The TS1872IN operates across a supply voltage range of 1.8 V to 6 V with rail-to-rail output capability, making it suitable for low-voltage analog signal processing applications.

Substiute Parts

TS1872IN

STMicroelectronicsIn Stock: 13213TS1872IN Datasheet

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MCP6272-E/P

Microchip TechnologyIn Stock: 2088MCP6272-E/P Datasheet

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OP213FPZ

Analog Devices Inc.In Stock: 2078OP213FPZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute components for the TS1872IN are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Mandatory Compatibility Criteria:

• Dual-circuit operational amplifier configuration (2 circuits)
• General-purpose amplifier classification
• Rail-to-rail output capability
• 8-DIP through-hole package format (0.300", 7.62mm pitch)
• Operating temperature range of -40°C to 125°C (or extended range)
• Supply voltage compatibility within the 1.8 V to 6 V operating window

Electrical Performance Parameters:

• Slew rate performance
• Gain bandwidth product
• Input bias current characteristics
• Input offset voltage specifications
• Output current per channel capability
• Supply current consumption

The identified substitute parts—MCP6272-E/P and OP213FPZ—meet the core mechanical and functional requirements while offering varying levels of electrical performance enhancement. Both substitutes maintain the dual-circuit, rail-to-rail, 8-DIP package configuration essential for direct replacement in existing PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

MCP6272-E/P (Microchip Technology)

The MCP6272-E/P is an active-status substitute offering direct compatibility with the TS1872IN across all critical mechanical and functional parameters. This device maintains the identical 8-DIP package footprint, dual-circuit configuration, and rail-to-rail output specification. The MCP6272-E/P operates within a 2 V to 6 V supply range, encompassing the upper portion of the TS1872IN operating window. Performance improvements include enhanced slew rate (0.9 V/µs versus 0.6 V/µs), increased gain bandwidth product (2 MHz versus 1.8 MHz), and significantly reduced supply current consumption (170 µA versus 500 µA). The MCP6272-E/P maintains ROHS3 compliance and MSL-1 moisture sensitivity rating, ensuring regulatory and environmental compatibility.

OP213FPZ (Analog Devices Inc.)

The OP213FPZ is an active-status substitute providing enhanced electrical performance characteristics within the 8-DIP package format. This device delivers superior slew rate (1.2 V/µs), higher gain bandwidth product (3.4 MHz), and lower input offset voltage (250 µV). However, the OP213FPZ operates within a 4 V to 36 V supply range, establishing a minimum supply voltage constraint of 4 V that exceeds the TS1872IN lower operating limit of 1.8 V. The operating temperature range extends to 85°C maximum, compared to the TS1872IN specification of 125°C. The OP213FPZ is suitable for applications where the 4 V minimum supply voltage and 85°C maximum temperature are acceptable design parameters. ROHS3 compliance and MSL-1 rating are maintained.

Selection Criteria Summary:

For applications requiring operation below 4 V supply voltage or above 85°C ambient temperature, the MCP6272-E/P provides the most direct substitution path. For applications tolerating the OP213FPZ supply voltage and temperature constraints, this device offers superior dynamic performance characteristics. Both substitutes maintain mechanical compatibility and regulatory compliance with the original TS1872IN specification.

Frequently Asked Questions (FAQ)

Q: Can the MCP6272-E/P directly replace the TS1872IN in existing PCB designs?

A: Yes. The MCP6272-E/P maintains identical 8-DIP package dimensions (0.300", 7.62mm), pin count, and through-hole mounting configuration. No PCB layout modifications are required. The dual-circuit, rail-to-rail output topology matches the TS1872IN functional specification. Verify that the application supply voltage operates within the MCP6272-E/P range of 2 V to 6 V.

Q: What are the key differences between the MCP6272-E/P and OP213FPZ substitutes?

A: The MCP6272-E/P operates across 2 V to 6 V supply range with operating temperature to 125°C, matching the TS1872IN temperature specification. The OP213FPZ requires minimum 4 V supply voltage and operates to 85°C maximum. The OP213FPZ provides superior slew rate (1.2 V/µs) and gain bandwidth product (3.4 MHz) compared to both the TS1872IN and MCP6272-E/P. Select based on specific supply voltage and temperature requirements.

Q: Is the OP213FPZ suitable for low-voltage applications below 4 V?

A: No. The OP213FPZ minimum supply voltage specification is 4 V. Applications requiring operation below 4 V must use the MCP6272-E/P or retain the TS1872IN if available inventory permits.

Q: Do the substitute parts maintain RoHS and environmental compliance?

A: Yes. Both MCP6272-E/P and OP213FPZ are ROHS3 compliant with MSL-1 (unlimited) moisture sensitivity rating, matching the TS1872IN compliance status. REACH status is unaffected for all three devices.

Q: What is the impact of reduced output current in the MCP6272-E/P?

A: The MCP6272-E/P specifies 25 mA output current per channel, compared to 80 mA for the TS1872IN. Applications requiring output currents exceeding 25 mA per channel must evaluate the OP213FPZ (40 mA per channel) or implement external buffering stages.

Q: Are there pin-to-pin compatibility concerns between these devices?

A: All three devices utilize standard 8-DIP package pinout for dual operational amplifiers. Pin assignments are functionally equivalent. Verify specific pinout documentation for the selected substitute to confirm signal routing compatibility with existing PCB designs.

Q: How does supply current consumption affect circuit design?

A: The MCP6272-E/P consumes 170 µA total supply current (x2 channels), significantly lower than the TS1872IN specification of 500 µA. This reduction improves power efficiency in battery-powered or low-power applications. The OP213FPZ supply current is not specified in available documentation.