THS3201DR Equivalent & Substitute Parts

Part Overview

The THS3201DR is a Current Feedback Amplifier (CFA) manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device is classified as "Not For New Designs," indicating it has been superseded in the product lifecycle. The THS3201DR delivers high-speed amplification with a slew rate of 9800V/µs and -3dB bandwidth of 1.8 GHz, making it suitable for applications requiring broadband signal processing. Due to its discontinued status for new designs, identifying equivalent substitute parts with compatible electrical and mechanical characteristics is essential for design continuity and component sourcing.

Substiute Parts

THS3201DR

Texas InstrumentsIn Stock: 1912THS3201DR Datasheet

Current PartRFQ

THS3001IDR

Texas InstrumentsIn Stock: 3813THS3001IDR Datasheet

MFR RecommendedRFQ

MAX4224ESA+

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the THS3201DR is determined by strict alignment with the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Amplifier Architecture: Substitute parts must be Current Feedback Amplifiers with a single circuit configuration to maintain functional equivalence.

Operating Temperature Range: Substitute parts must support the -40°C to 85°C operating temperature range to ensure reliability across the same environmental conditions.

Supply Voltage Compatibility: The substitute part's supply voltage span must encompass or be compatible with the THS3201DR's 6.6V to 15V range. Parts with wider supply ranges are acceptable if they operate within this window.

Regulatory Compliance: All substitute parts must maintain ROHS3 compliance and MSL Level 1 rating to satisfy manufacturing and environmental standards.

Product Status: Active product status is preferred for long-term availability and design continuity, though this is not a strict electrical requirement.

The two identified substitute parts—THS3001IDR and MAX4224ESA+—meet these core substitution criteria while offering different performance trade-offs in bandwidth, slew rate, and supply current characteristics.

Parameter Comparison

Engineering Selection Recommendations

THS3001IDR (Texas Instruments)

The THS3001IDR is an active product with ROHS3 compliance and MSL Level 1 rating. It shares the 8-SOIC package footprint and -40°C to 85°C operating temperature range with the THS3201DR. The THS3001IDR operates within a wider supply voltage range (9V to 33V), which encompasses the THS3201DR's 6.6V to 15V window. This part exhibits lower input bias current (2 µA versus 14 µA) and reduced supply current (6.6 mA versus 14 mA), resulting in improved power efficiency. However, the THS3001IDR delivers reduced bandwidth (420 MHz versus 1.8 GHz) and slew rate (6500V/µs versus 9800V/µs), making it suitable for applications where bandwidth requirements are lower than the original design specification.

MAX4224ESA+ (Analog Devices Inc./Maxim Integrated)

The MAX4224ESA+ is an active product with ROHS3 compliance and MSL Level 1 rating. It maintains the 8-SOIC package and -40°C to 85°C operating temperature range. The MAX4224ESA+ operates within a narrower supply voltage range (5.7V to 11V), which overlaps with but does not fully encompass the THS3201DR's 6.6V to 15V specification. This part features the lowest input bias current (4 µA) and lowest supply current (6 mA) among the three options, supporting low-power applications. The MAX4224ESA+ provides moderate bandwidth (600 MHz) and the lowest slew rate (1700V/µs), positioning it for applications requiring reduced power consumption at the expense of bandwidth performance.

Frequently Asked Questions (FAQ)

Q: Can the THS3001IDR directly replace the THS3201DR in existing designs?

A: The THS3001IDR shares the same 8-SOIC package, operating temperature range, and regulatory compliance as the THS3201DR. However, the THS3001IDR has reduced bandwidth (420 MHz versus 1.8 GHz) and slew rate (6500V/µs versus 9800V/µs). Direct replacement is possible only if the application does not require the higher bandwidth and slew rate specifications of the original design.

Q: What is the supply voltage compatibility between THS3201DR and its substitutes?

A: The THS3201DR requires 6.6V to 15V supply. The THS3001IDR operates at 9V to 33V, which overlaps the upper portion of the THS3201DR range. The MAX4224ESA+ operates at 5.7V to 11V, which overlaps the lower portion. Both substitutes can operate within portions of the original supply range, but circuit design must verify compatibility with the specific supply voltages used.

Q: Are all three parts pin-compatible?

A: All three parts use the 8-SOIC package with identical physical dimensions (0.154", 3.90mm Width). Pin compatibility depends on the specific pinout of each device. While package compatibility is confirmed, detailed pinout verification against the respective datasheets is required before PCB layout or component substitution.

Q: Which substitute offers the best power efficiency?

A: The MAX4224ESA+ draws the lowest supply current at 6 mA, followed by the THS3001IDR at 6.6 mA, compared to the THS3201DR at 14 mA. The MAX4224ESA+ is the most power-efficient option for applications prioritizing low current consumption.

Q: Do all parts meet the same environmental and compliance standards?

A: Yes. The THS3201DR, THS3001IDR, and MAX4224ESA+ are all ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating. All three parts are rated for -40°C to 85°C operating temperature, ensuring equivalent environmental performance.

Q: What are the key performance trade-offs when substituting?

A: The THS3001IDR trades bandwidth and slew rate for lower power consumption and wider supply voltage range. The MAX4224ESA+ offers the lowest power consumption but operates within a narrower supply voltage window and provides the lowest bandwidth and slew rate. Selection depends on whether the application prioritizes bandwidth performance or power efficiency.