THS4151CDR Equivalent & Substitute Parts

Part Overview

The THS4151CDR is a differential amplifier integrated circuit manufactured by Texas Instruments, designed for high-speed signal conditioning applications. This device features a single differential amplifier circuit in an 8-SOIC surface mount package with a gain bandwidth product of 340 MHz and slew rate of 650 V/µs.

The THS4151CDR is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for systems utilizing this differential amplifier topology.

Substiute Parts

THS4151CDR

Texas InstrumentsIn Stock: 3809THS4151CDR Datasheet

Current PartRFQ

THS4150CDR

Texas InstrumentsIn Stock: 3993THS4150CDR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the THS4151CDR is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameter Equivalence:

• Amplifier type: Differential
• Number of circuits: 1
• Output type: Differential
• Slew rate: 650 V/µs
• Gain bandwidth product: 340 MHz
• -3dB bandwidth: 150 MHz
• Current - input bias: 4.3 µA
• Voltage - input offset: 1.1 mV
• Current - supply: 17.5 mA
• Current - output / channel: 85 mA
• Voltage - supply span: 4 V to 33 V
• Operating temperature range: 0°C to 70°C

Mechanical & Packaging Equivalence:

• Package type: 8-SOIC (0.154", 3.90mm Width)
• Mounting type: Surface Mount
• Supplier device package: 8-SOIC

Compliance Equivalence:

• RoHS3 Compliant
• Moisture Sensitivity Level 1 (Unlimited)
• REACH Unaffected

The THS4150CDR meets all specified criteria and is identified as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The THS4150CDR is the direct parametric equivalent substitute for the THS4151CDR. All electrical specifications, mechanical dimensions, and compliance certifications are identical between the two devices.

Primary Advantage: The THS4150CDR maintains active product status with Texas Instruments, ensuring ongoing availability and supply chain support. The THS4151CDR is classified as obsolete, making the THS4150CDR the appropriate selection for new designs and production continuity.

Compliance Status: Both devices are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity ratings. No compliance-related design modifications are required when substituting the THS4150CDR for the THS4151CDR.

Packaging Consideration: The THS4150CDR is supplied in Tape & Reel (TR) packaging, which is standard for high-volume surface mount assembly operations. The THS4151CDR packaging format is not specified in the provided data. Both devices use the identical 8-SOIC package footprint, ensuring direct PCB compatibility.

Frequently Asked Questions (FAQ)

Q: Can the THS4150CDR be used as a direct replacement for the THS4151CDR in existing designs?

A: Yes. The THS4150CDR is a parametric equivalent with identical electrical specifications, package dimensions, and pin configuration. No circuit modifications or PCB redesign is required.

Q: Are there any differences in supply voltage requirements between these devices?

A: No. Both devices operate across the same supply voltage range of 4 V to 33 V. Input bias current, input offset voltage, and output current specifications are identical.

Q: What is the significance of the product status difference?

A: The THS4151CDR is obsolete, indicating Texas Instruments no longer manufactures or supports this part number. The THS4150CDR is active, ensuring continued availability, technical support, and compliance with current manufacturing standards.

Q: Are the thermal and frequency characteristics identical?

A: Yes. Both devices share identical slew rate (650 V/µs), gain bandwidth product (340 MHz), and -3dB bandwidth (150 MHz) specifications. Operating temperature range is 0°C to 70°C for both parts.

Q: What is the difference between the packaging formats listed?

A: The THS4151CDR packaging format is not specified in the available data. The THS4150CDR is supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly. Both devices use the 8-SOIC package case, ensuring identical PCB footprint compatibility.

Q: Are moisture sensitivity and RoHS compliance identical?

A: Yes. Both devices carry Moisture Sensitivity Level 1 (Unlimited), ROHS3 compliance, and REACH unaffected status. No environmental or regulatory differences exist between the two part numbers.

Q: What is the base product number relationship?

A: The THS4151CDR is based on the THS415 product family, while the THS4150CDR is based on the THS4150 product family. Despite different base designations, the devices are parametric equivalents with identical performance characteristics.