THS4502CDG4 Equivalent & Substitute Parts

Part Overview

The THS4502CDG4 is a differential amplifier integrated circuit manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device is classified as a linear amplifier with one differential circuit and differential output configuration. The THS4502CDG4 is currently listed as obsolete, making identification of functionally equivalent substitute components essential for ongoing design support, production continuity, and system maintenance.

Substiute Parts

THS4502CDG4

Texas InstrumentsIn Stock: 1163THS4502CDG4 Datasheet

Current PartRFQ

THS4502CD

Texas InstrumentsIn Stock: 987THS4502CD Datasheet

MFR RecommendedRFQ

ADA4857-1YRZ-R7

Analog Devices Inc.In Stock: 93446ADA4857-1YRZ-R7 Datasheet

MFR RecommendedRFQ

MAX452CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2198MAX452CSA+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the THS4502CDG4 is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Mandatory Matching Parameters:

• Package type: 8-SOIC surface mount configuration
• Slew rate: 2800 V/µs minimum
• Supply voltage range compatibility: 4.5 V to 15 V operation
• Input bias current: 4 µA maximum
• Input offset voltage: 1 mV maximum
• RoHS3 compliance and MSL Level 1 rating

Substitute Classification:

Primary Substitute (Direct Replacement): THS4502CD matches all electrical specifications and operates within identical parameter ranges. This part is manufactured by Texas Instruments under the same base product number and maintains active product status.

Secondary Substitutes (Parameter Variance): ADA4857-1YRZ-R7 and MAX452CSA+ provide functional amplification in the 8-SOIC package but exhibit parameter deviations that require circuit-level evaluation. These parts are listed as manufacturer-recommended alternatives but do not maintain identical electrical characteristics across all specifications.

Parameter Comparison

Engineering Selection Recommendations

THS4502CD (Primary Recommendation): The THS4502CD is the recommended substitute for the obsolete THS4502CDG4. This part maintains identical electrical specifications, including slew rate, bandwidth, and supply voltage parameters. Both devices are manufactured by Texas Instruments under the same base product number THS4502. The THS4502CD is currently in active production status with confirmed inventory availability. RoHS3 compliance and MSL Level 1 rating are maintained. This substitution requires no circuit redesign or parameter re-evaluation.

ADA4857-1YRZ-R7 (Secondary Option): The ADA4857-1YRZ-R7 is an active product manufactured by Analog Devices Inc. This device shares the 8-SOIC package and 2800 V/µs slew rate with the THS4502CDG4. However, the ADA4857-1YRZ-R7 operates as a voltage feedback amplifier rather than a differential amplifier, exhibits higher -3dB bandwidth (850 MHz versus 370 MHz), lower supply current (5 mA versus 23 mA), and operates within a reduced supply voltage range (4.5 V to 10.5 V versus 4.5 V to 15 V). This part is suitable only when circuit topology permits voltage feedback configuration and when the extended bandwidth and reduced supply current are compatible with system requirements.

MAX452CSA+ (Not Recommended): The MAX452CSA+ is obsolete and exhibits significant parameter deviations from the THS4502CDG4. The slew rate is substantially reduced (300 V/µs versus 2800 V/µs), and the -3dB bandwidth is limited to 50 MHz. This part operates with dual supply voltages (±4.5 V to ±5.5 V) rather than single supply operation. These differences preclude direct substitution in applications requiring the original performance specifications.

Frequently Asked Questions (FAQ)

Q: Can the THS4502CD be used as a direct replacement for the THS4502CDG4?

A: Yes. The THS4502CD is a direct substitute. Both parts are manufactured by Texas Instruments, share identical electrical specifications including slew rate (2800 V/µs), bandwidth (370 MHz), and supply voltage range (4.5 V to 15 V). The primary difference is product status: THS4502CDG4 is obsolete while THS4502CD is active. No circuit modifications are required.

Q: What is the difference between the THS4502CDG4 and ADA4857-1YRZ-R7?

A: The THS4502CDG4 is a differential amplifier with differential output, while the ADA4857-1YRZ-R7 is a voltage feedback amplifier. The ADA4857-1YRZ-R7 provides higher bandwidth (850 MHz versus 370 MHz) and lower supply current (5 mA versus 23 mA), but operates within a narrower supply voltage range (4.5 V to 10.5 V versus 4.5 V to 15 V). Substitution requires circuit topology compatibility verification.

Q: Why is the MAX452CSA+ not recommended as a substitute?

A: The MAX452CSA+ is obsolete and exhibits substantial performance degradation compared to the THS4502CDG4. The slew rate is reduced to 300 V/µs (versus 2800 V/µs), bandwidth is limited to 50 MHz (versus 370 MHz), and it requires dual supply voltages (±4.5 V to ±5.5 V) rather than single supply operation. These differences make it unsuitable for direct replacement.

Q: Are all substitute parts available in the same 8-SOIC package?

A: Yes. The THS4502CD, ADA4857-1YRZ-R7, and MAX452CSA+ are all housed in 8-SOIC (0.154", 3.90mm Width) surface mount packages. PCB layout and footprint compatibility are maintained across all listed substitutes.

Q: Do all substitute parts meet RoHS3 compliance requirements?

A: Yes. The THS4502CD, ADA4857-1YRZ-R7, and MAX452CSA+ are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). Regulatory compliance is maintained across all substitutes.

Q: What is the operating temperature range for each substitute?

A: The THS4502CDG4 and THS4502CD operate from 0°C to 70°C. The ADA4857-1YRZ-R7 operates from -40°C to 125°C, providing extended temperature range capability. The MAX452CSA+ operating temperature range is not specified in the provided data.

Q: Which substitute offers the lowest power consumption?

A: The ADA4857-1YRZ-R7 has the lowest supply current at 5 mA, compared to 23 mA for the THS4502CDG4 and THS4502CD, and 25 mA for the MAX452CSA+. This makes the ADA4857-1YRZ-R7 suitable for power-constrained applications when circuit topology permits voltage feedback configuration.