THS4131CDG4 Equivalent & Substitute Parts

Part Overview

The THS4131CDG4 is a differential amplifier integrated circuit manufactured by Texas Instruments, designed for linear signal processing applications. This device features a single differential amplifier circuit in an 8-SOIC surface mount package with a gain bandwidth product of 225 MHz and a slew rate of 52 V/µs. The THS4131CDG4 is classified as Last Time Buy, indicating that the manufacturer has discontinued or will discontinue production. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

THS4131CDG4

Texas InstrumentsIn Stock: 779THS4131CDG4 Datasheet

Current PartRFQ

THS4131CD

Texas InstrumentsIn Stock: 2234THS4131CD Datasheet

MFR RecommendedRFQ

THS4131IDR

Texas InstrumentsIn Stock: 1543THS4131IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the THS4131CDG4 are determined by electrical and mechanical parameter equivalence within the THS4131 product family. All substitute candidates must satisfy the following criteria:

Electrical Parameter Requirements:

• Amplifier Type: Differential
• Number of Circuits: 1
• Output Type: Differential
• Slew Rate: 52 V/µs
• Gain Bandwidth Product: 225 MHz
• -3dB Bandwidth: 150 MHz
• Current - Input Bias: 2 µA
• Voltage - Input Offset: 200 µV
• Current - Supply: 12.3 mA
• Current - Output / Channel: 85 mA
• Voltage - Supply Span: 4 V to 33 V

Mechanical Parameter Requirements:

• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Supplier Device Package: 8-SOIC

Compliance Requirements:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

Substitutes within this grouping share identical electrical performance characteristics and mechanical compatibility, enabling direct replacement in circuit designs. Differences in operating temperature range and product status do not affect functional substitution capability.

Parameter Comparison

Engineering Selection Recommendations

THS4131CD is a direct electrical and mechanical equivalent to the THS4131CDG4. Both devices share identical electrical specifications and operate within the same temperature range (0°C ~ 70°C). Both are classified as Last Time Buy, indicating similar lifecycle status. This part is suitable for applications where the operating temperature range of 0°C to 70°C is acceptable and where Last Time Buy inventory availability is sufficient for production requirements.

THS4131IDR is a direct electrical equivalent to the THS4131CDG4 with an extended operating temperature range of -40°C to 85°C. This part carries Active product status, indicating ongoing manufacturer support and continued availability. The THS4131IDR is suitable for applications requiring extended temperature operation or long-term supply chain stability. The expanded temperature range provides additional operational margin for demanding thermal environments.

Both substitute parts maintain full compliance with ROHS3, REACH, and MSL requirements. Selection between THS4131CD and THS4131IDR should be based on application temperature requirements and supply chain continuity needs.

Frequently Asked Questions (FAQ)

Q: Can THS4131CD be used as a direct replacement for THS4131CDG4?

A: Yes. The THS4131CD is electrically and mechanically equivalent to the THS4131CDG4. Both devices have identical electrical specifications, including slew rate, gain bandwidth product, input bias current, and output current capability. Both use the same 8-SOIC package and share identical supply voltage requirements (4 V to 33 V). Operating temperature ranges are identical (0°C ~ 70°C).

Q: What is the primary difference between THS4131CD and THS4131IDR?

A: The primary difference is operating temperature range and product status. The THS4131CD operates from 0°C to 70°C and is Last Time Buy. The THS4131IDR operates from -40°C to 85°C and carries Active product status. All electrical specifications and package configurations are identical.

Q: Is the THS4131IDR suitable for applications currently using THS4131CDG4?

A: Yes. The THS4131IDR is electrically and mechanically compatible with the THS4131CDG4. The extended operating temperature range (-40°C to 85°C) encompasses the original temperature range (0°C to 70°C), making it suitable for all applications within the original specifications. The Active product status provides long-term availability assurance.

Q: Are there any package compatibility concerns when substituting these parts?

A: No. All three parts use the identical 8-SOIC package (0.154", 3.90mm Width). Pin configuration, footprint, and mounting requirements are identical. No PCB redesign or layout modifications are required.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 Compliant, REACH Unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). Compliance certifications are identical across all substitute options.

Q: Which substitute part should be selected for new designs?

A: For new designs, THS4131IDR is recommended due to its Active product status, which ensures continued manufacturer support and long-term availability. The extended operating temperature range provides additional design flexibility for future applications.

Q: Can THS4131CD and THS4131IDR be used interchangeably in the same circuit?

A: Yes. Both parts are electrically identical and use the same package. They can be used interchangeably in circuit designs. Selection should be based on application temperature requirements and supply chain strategy.