TSH75CPT Equivalent & Substitute Parts

Part Overview

The TSH75CPT is a general-purpose operational amplifier manufactured by STMicroelectronics, configured as a 4-circuit rail-to-rail amplifier in a 16-TSSOP surface mount package. This device is classified as obsolete, indicating discontinued production and limited availability for new designs. The identification of equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

TSH75CPT

STMicroelectronicsIn Stock: 10496TSH75CPT Datasheet

Current PartRFQ

MAX4220EEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1407MAX4220EEE+ Datasheet

SimilarRFQ

MAX4220EEE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 4088MAX4220EEE+T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSH75CPT is based on the following critical parameters that must align between the main part and substitute candidates:

Mandatory Alignment Criteria:

• Number of Circuits: 4 channels required
• Output Type: Rail-to-Rail configuration
• Mounting Type: Surface Mount
• Category: Linear Amplifiers
• RoHS Compliance: ROHS3 Compliant
• Moisture Sensitivity Level: MSL 1 (Unlimited)

Functional Compatibility Criteria:

• Supply voltage range overlap (minimum 3 V to maximum 12 V for TSH75CPT)
• Rail-to-rail output capability
• General-purpose or voltage feedback amplifier topology

The substitute parts MAX4220EEE+ and MAX4220EEE+T meet these criteria. Both are 4-circuit rail-to-rail amplifiers with surface mount packaging, ROHS3 compliance, and MSL 1 rating. The primary differences are packaging format (Tube versus Tape & Reel) and product status (Active versus Obsolete), with the substitute parts offering enhanced electrical performance characteristics and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TSH75CPT is classified as obsolete, indicating end-of-life status with no ongoing production. The substitute parts MAX4220EEE+ and MAX4220EEE+T are both active products with current manufacturing support, ensuring long-term availability and supply chain stability.

Compliance and Certification: All three parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for electronic component procurement. Moisture sensitivity level remains constant at MSL 1 (Unlimited) across all options, eliminating moisture-related handling constraints.

Electrical Performance: The MAX4220 series demonstrates enhanced electrical characteristics compared to the TSH75CPT, including higher slew rate (600 V/µs versus 118 V/µs), increased bandwidth (-3dB bandwidth of 200 MHz versus 100 MHz), and greater output current capability (120 mA per channel versus 55 mA). These improvements provide performance headroom for signal conditioning applications.

Packaging Considerations: The substitute parts utilize 16-SSOP packaging (0.154", 3.90mm width) compared to the original 16-TSSOP (0.173", 4.40mm width). While both are surface mount packages with identical pin counts, PCB layout modifications are required to accommodate the narrower package width. The MAX4220EEE+T in Tape & Reel format is recommended for high-volume production environments, while MAX4220EEE+ in Tube format supports lower-volume or prototype applications.

Supply Voltage Compatibility: The substitute parts operate within a supply voltage range of 3.15 V to 11 V, which overlaps substantially with the TSH75CPT range of 3 V to 12 V. Applications operating at the upper limit (12 V) require verification that 11 V maximum supply voltage is acceptable for the intended circuit design.

Operating Temperature Range: The MAX4220 series extends the operating temperature range to -40°C to 85°C compared to the TSH75CPT range of 0°C to 70°C, providing enhanced performance in extended temperature environments.

Frequently Asked Questions (FAQ)

Q: Can MAX4220EEE+ and MAX4220EEE+T be used interchangeably with TSH75CPT?

A: Both MAX4220 variants are functionally compatible substitutes for the TSH75CPT in applications requiring 4-circuit rail-to-rail amplification. The primary difference between MAX4220EEE+ and MAX4220EEE+T is packaging format (Tube versus Tape & Reel). Selection depends on production volume and assembly process requirements. PCB layout modifications are necessary due to package width differences (16-SSOP versus 16-TSSOP).

Q: What are the key electrical differences between TSH75CPT and MAX4220 series?

A: The MAX4220 series offers superior slew rate (600 V/µs versus 118 V/µs), higher bandwidth (-3dB of 200 MHz versus 100 MHz), and increased output current per channel (120 mA versus 55 mA). Input bias current is slightly lower (5.4 µA versus 6 µA), while input offset voltage is higher (4 mV versus 1.1 mV). These differences indicate the MAX4220 is optimized for voltage feedback topology with enhanced dynamic performance.

Q: Are there supply voltage compatibility issues when substituting MAX4220 for TSH75CPT?

A: The MAX4220 series maximum supply voltage is 11 V compared to 12 V for the TSH75CPT. Applications operating at 12 V supply must be evaluated to confirm that 11 V maximum rating is acceptable. The minimum supply voltage for MAX4220 (3.15 V) is slightly higher than TSH75CPT (3 V), which is generally not a limiting factor in most applications.

Q: What packaging modifications are required for PCB redesign?

A: The TSH75CPT uses 16-TSSOP packaging with 4.40mm width, while MAX4220 uses 16-SSOP packaging with 3.90mm width. Both packages maintain 16-pin configuration with identical pin pitch. PCB footprint modifications are required to accommodate the narrower package width. Pin-to-pin spacing and lead configuration remain compatible, allowing straightforward layout adaptation.

Q: Which MAX4220 variant should be selected for production?

A: MAX4220EEE+T (Tape & Reel format) is recommended for high-volume production due to automated assembly compatibility and cost efficiency. MAX4220EEE+ (Tube format) is suitable for prototype development, low-volume production, or manual assembly processes. Both variants are electrically identical and offer active product status with ongoing manufacturer support.

Q: Does the extended operating temperature range of MAX4220 affect circuit design?

A: The MAX4220 operating range of -40°C to 85°C exceeds the TSH75CPT range of 0°C to 70°C. This extended range provides design flexibility for applications requiring operation in extreme temperature environments. Existing designs operating within 0°C to 70°C require no thermal design modifications.

Q: Are there regulatory or compliance differences between these parts?

A: All three parts maintain identical ROHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating. No regulatory or compliance barriers exist for substitution. Both the obsolete TSH75CPT and active MAX4220 series meet current electronic component procurement standards.