LT1469ACDF Equivalent & Substitute Parts

Part Overview

The LT1469ACDF is a general-purpose operational amplifier featuring dual circuits in a 12-DFN (4x4) surface-mount package, manufactured by Analog Devices Inc. This device is classified as obsolete, indicating it has been discontinued from active production. The LT1469ACDF delivers a gain-bandwidth product of 90 MHz with a slew rate of 22 V/µs, making it suitable for general-purpose amplification applications requiring moderate bandwidth and speed characteristics.

Due to its obsolete status, locating the LT1469ACDF from original manufacturing sources presents supply chain challenges. Identifying equivalent and substitute parts ensures design continuity and project completion without requiring circuit redesign.

Substiute Parts

LT1469ACDF

Analog Devices Inc.In Stock: 960LT1469ACDF Datasheet

Current PartRFQ

LT1469ACDF#PBF

Analog Devices Inc.In Stock: 1346LT1469ACDF#PBF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LT1469ACDF is determined by strict equivalence across all electrical and mechanical parameters. The critical parameters governing substitution are:

• Amplifier Type: General Purpose
• Number of Circuits: 2 (dual configuration)
• Gain Bandwidth Product: 90 MHz
• Slew Rate: 22 V/µs
• Input Bias Current: 3 nA
• Input Offset Voltage: 50 µV
• Supply Current: 4.1 mA per channel
• Output Current: 22 mA per channel
• Supply Voltage Range: 5 V to 9 V
• Operating Temperature: 0°C to 70°C
• Package: 12-WFDFN Exposed Pad (12-DFN 4x4)
• Mounting: Surface Mount

Parts meeting all these specifications are classified as direct equivalents. Variations in packaging format (such as tube versus alternative packaging) do not affect electrical compatibility when the core package type remains identical.

Parameter Comparison

Engineering Selection Recommendations

The LT1469ACDF#PBF is a direct electrical and mechanical equivalent to the LT1469ACDF. Both parts share identical electrical specifications across all measured parameters, including gain-bandwidth product, slew rate, bias current, offset voltage, supply current, output current, and operating temperature range. Both are packaged in the 12-WFDFN Exposed Pad configuration suitable for surface-mount assembly.

The primary distinction between these parts is product status and regulatory compliance. The LT1469ACDF#PBF maintains active production status from Analog Devices Inc., ensuring ongoing availability and supply chain reliability. The LT1469ACDF#PBF carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

For new designs or production requiring the LT1469 dual general-purpose amplifier in a 12-DFN package, the LT1469ACDF#PBF is the appropriate selection. For legacy systems currently using the obsolete LT1469ACDF, direct substitution with the LT1469ACDF#PBF is electrically and mechanically compatible without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the LT1469ACDF#PBF be used as a direct replacement for the LT1469ACDF?

A: Yes. The LT1469ACDF#PBF is electrically and mechanically identical to the LT1469ACDF. All electrical parameters, including gain-bandwidth product, slew rate, input bias current, input offset voltage, supply current, output current, and operating temperature range are identical. Both use the 12-WFDFN Exposed Pad package for surface-mount assembly. Direct substitution requires no circuit modifications.

Q: What is the significance of the #PBF suffix in the LT1469ACDF#PBF part number?

A: The #PBF suffix indicates the part is supplied in tube packaging format and carries ROHS3 compliance certification. This designation reflects the packaging method and regulatory status but does not affect the electrical performance or functional characteristics of the device.

Q: Why is the LT1469ACDF classified as obsolete?

A: The LT1469ACDF has been discontinued from active production by Analog Devices Inc. The LT1469ACDF#PBF remains in active production and serves as the current equivalent for this device family.

Q: Are there any differences in the 12-DFN package between the two parts?

A: No. Both the LT1469ACDF and LT1469ACDF#PBF use the identical 12-WFDFN Exposed Pad package (4x4 mm). Pin configuration, footprint, and mechanical dimensions are identical, enabling direct board-level substitution.

Q: What compliance certifications apply to the LT1469ACDF#PBF?

A: The LT1469ACDF#PBF is ROHS3 compliant and REACH unaffected. These certifications confirm compliance with current environmental and hazardous substance restrictions applicable to electronic components.

Q: Can the LT1469ACDF#PBF operate across the same temperature range as the LT1469ACDF?

A: Yes. Both parts operate across the identical temperature range of 0°C to 70°C. Operating characteristics remain consistent across this range for both devices.

Q: What is the supply voltage range for these devices?

A: Both the LT1469ACDF and LT1469ACDF#PBF operate with a supply voltage span from 5 V minimum to 9 V maximum. Circuit designs must maintain supply voltages within this range for proper operation.