DS1100LU-45 Equivalent & Substitute Parts

Part Overview

The DS1100LU-45 is a nonprogrammable delay line IC manufactured by Analog Devices Inc./Maxim Integrated, designed for clock and timing applications. This component features 5 taps with a 45ns total delay and operates within the 3V to 3.6V supply voltage range. The part is currently classified as obsolete, making identification of suitable substitutes essential for ongoing design support and component procurement.

Substiute Parts

DS1100LU-45

Analog Devices Inc./Maxim IntegratedIn Stock: 1005DS1100LU-45 Datasheet

Current PartRFQ

DS1100LU-45+

Analog Devices Inc./Maxim IntegratedIn Stock: 1225DS1100LU-45+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS1100LU-45 is determined by strict equivalence across the following critical parameters:

• Number of taps: 5
• Delay function: Nonprogrammable
• Delay to first tap: 9ns
• Tap increment: 9ns
• Total available delay: 45ns
• Number of independent delays: 1
• Supply voltage range: 3V ~ 3.6V
• Operating temperature range: -40°C ~ 85°C
• Package type: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

The DS1100LU-45+ meets all electrical and mechanical substitution criteria and is classified as an active product, providing continuity for designs currently using the obsolete DS1100LU-45.

Parameter Comparison

Engineering Selection Recommendations

The DS1100LU-45+ is the direct substitute for the obsolete DS1100LU-45. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and maintain identical electrical specifications, delay characteristics, and package dimensions. The DS1100LU-45+ carries active product status, ensuring ongoing availability and manufacturing support.

Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The MSL 1 rating indicates unlimited shelf life under standard storage conditions. For new designs or component replenishment, the DS1100LU-45+ is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the DS1100LU-45+ be used as a direct replacement for the DS1100LU-45?

A: Yes. The DS1100LU-45+ is electrically and mechanically equivalent to the DS1100LU-45. All delay parameters, supply voltage, operating temperature range, and package specifications are identical.

Q: What is the difference between DS1100LU-45 and DS1100LU-45+?

A: The primary difference is product status. The DS1100LU-45 is obsolete, while the DS1100LU-45+ is active. The "+" designation indicates the active variant with continued manufacturing support. Electrical and functional specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the 8-TSSOP, 8-MSOP package with 0.118" width (3.00mm). Pinout and mechanical dimensions are identical, allowing direct PCB substitution without layout modifications.

Q: What does the 5-tap, 45ns delay specification mean?

A: The DS1100LU-45 provides 5 output taps with progressive delays. The first tap has a 9ns delay, with each subsequent tap adding 9ns increments, resulting in taps at 9ns, 18ns, 27ns, 36ns, and 45ns. This is a nonprogrammable configuration with fixed delay values.

Q: Are both parts RoHS compliant?

A: Yes. Both the DS1100LU-45 and DS1100LU-45+ are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the MSL rating, and why does it matter?

A: Both parts have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity limitations. These components can be stored indefinitely under standard conditions without requiring special moisture control or baking procedures prior to assembly.