THS3201DRG4 Equivalent & Substitute Parts

Part Overview

The THS3201DRG4 is a Current Feedback Amplifier (CFA) integrated circuit manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This single-circuit operational amplifier is designed for high-speed signal processing applications requiring wide bandwidth and fast slew rate performance.

The THS3201DRG4 is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent substitute components. Alternative parts must maintain electrical compatibility across critical parameters including slew rate, bandwidth, input bias current, and supply voltage specifications to ensure direct replacement capability in existing circuit designs.

Substiute Parts

THS3201DRG4

Texas InstrumentsIn Stock: 2315THS3201DRG4 Datasheet

Current PartRFQ

THS3201DR

Texas InstrumentsIn Stock: 1912THS3201DR Datasheet

MFR RecommendedRFQ

MAX4224ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 961MAX4224ESA+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the THS3201DRG4 are identified based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:

Primary Compatibility Criteria:

• Amplifier Type: Current Feedback
• Number of Circuits: 1
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Operating Temperature Range: -40°C to 85°C

Secondary Performance Parameters:

• Slew Rate: 9800 V/µs (THS3201DRG4 specification)
• -3dB Bandwidth: 1.8 GHz (THS3201DRG4 specification)
• Supply Voltage Compatibility: Minimum 6.6 V to Maximum 15 V

Identified substitute parts include the THS3201DR (Texas Instruments, same base product number, alternative packaging) and MAX4224ESA+ (Analog Devices Inc./Maxim Integrated, alternative manufacturer offering). Both parts share identical package geometry and mounting characteristics, enabling direct PCB-level replacement.

Parameter Comparison

Engineering Selection Recommendations

THS3201DR (Texas Instruments)

The THS3201DR is a direct electrical equivalent to the THS3201DRG4, sharing identical performance specifications across all measured parameters including 9800 V/µs slew rate and 1.8 GHz bandwidth. Both parts are based on the same THS3201 base product number and are housed in identical 8-SOIC packages. The THS3201DR is designated "Not For New Designs" status, indicating it remains available for legacy system support and replacement applications. This part is suitable for direct substitution in existing designs where the THS3201DRG4 is no longer procurable.

MAX4224ESA+ (Analog Devices Inc./Maxim Integrated)

The MAX4224ESA+ is an alternative current feedback amplifier from a different manufacturer, offering reduced performance specifications compared to the THS3201DRG4. The MAX4224ESA+ exhibits a slew rate of 1700 V/µs (82.7% reduction) and -3dB bandwidth of 600 MHz (66.7% reduction). Input bias current is lower at 4 µA versus 14 µA, and supply current is reduced to 6 mA from 14 mA. The maximum supply voltage is limited to 11 V compared to 15 V. The MAX4224ESA+ maintains ROHS3 compliance and identical package geometry. This part is currently in Active product status. Selection of the MAX4224ESA+ requires circuit-level analysis to confirm that reduced bandwidth and slew rate specifications do not compromise system performance requirements.

Frequently Asked Questions (FAQ)

Q: Can the THS3201DR be used as a direct replacement for the THS3201DRG4?

A: Yes. The THS3201DR is electrically and mechanically identical to the THS3201DRG4. Both parts share the same base product number (THS3201), identical electrical specifications (9800 V/µs slew rate, 1.8 GHz bandwidth, 14 µA input bias current), and identical 8-SOIC package geometry. No circuit modifications are required for substitution.

Q: What are the key differences between the THS3201DRG4 and MAX4224ESA+?

A: The MAX4224ESA+ has significantly lower performance specifications. Slew rate is reduced from 9800 V/µs to 1700 V/µs. Bandwidth is reduced from 1.8 GHz to 600 MHz. Input bias current is lower (4 µA vs. 14 µA), and maximum supply voltage is limited to 11 V versus 15 V. Both parts use identical 8-SOIC packages and share current feedback amplifier topology. Substitution requires verification that the reduced bandwidth and slew rate do not degrade system performance.

Q: Are all three parts (THS3201DRG4, THS3201DR, MAX4224ESA+) pin-compatible?

A: Yes. All three parts are housed in 8-SOIC packages with 0.154-inch width and 3.90mm body width. Pin-to-pin compatibility is maintained across all three devices, enabling direct PCB-level replacement without layout modifications.

Q: What is the difference between THS3201DRG4 and THS3201DR packaging designations?

A: The THS3201DRG4 and THS3201DR differ in their packaging suffix designations, which typically indicate different tape-and-reel or tube packaging formats. Both parts are functionally identical 8-SOIC surface mount devices. The suffix does not affect electrical performance or pin configuration.

Q: Is the MAX4224ESA+ suitable for high-speed applications requiring 1.8 GHz bandwidth?

A: No. The MAX4224ESA+ is limited to 600 MHz bandwidth, making it unsuitable for applications requiring the full 1.8 GHz bandwidth of the THS3201DRG4. Applications requiring bandwidth above 600 MHz must use either the THS3201DRG4 or THS3201DR.

Q: Do all three parts meet RoHS3 compliance requirements?

A: Yes. The THS3201DRG4, THS3201DR, and MAX4224ESA+ are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). All parts are suitable for applications requiring RoHS compliance.

Q: What is the product status of each substitute part?

A: THS3201DRG4 is discontinued at DiGi Electronics. THS3201DR is designated "Not For New Designs," indicating limited availability for legacy applications. MAX4224ESA+ is in Active product status, indicating current production and ongoing availability from the manufacturer.