TS2DDR2811ZXYR Equivalent & Substitute Parts

Part Overview

The TS2DDR2811ZXYR is an 8-circuit IC switch manufactured by Texas Instruments, configured as SPST-NO (Single Pole Single Throw - Normally Open) with 1:1 multiplexer/demultiplexer functionality. This component is designed for high-frequency signal switching applications with a -3dB bandwidth of 1.1GHz and operates from a single 3V to 3.6V supply. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

TS2DDR2811ZXYR

Texas InstrumentsIn Stock: 1210TS2DDR2811ZXYR Datasheet

Current PartRFQ

ADG1414BCPZ-REEL7

Analog Devices Inc.In Stock: 4174ADG1414BCPZ-REEL7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS2DDR2811ZXYR is determined by the following critical parameters:

• Circuit Configuration: Both main and substitute parts must maintain SPST-NO topology with 8 circuits and 1:1 multiplexer/demultiplexer functionality
• On-State Resistance: The substitute must support the required impedance characteristics for signal integrity
• Supply Voltage Compatibility: The substitute must operate within or encompass the original supply voltage range
• Bandwidth and Frequency Response: The substitute must meet or exceed the -3dB bandwidth requirement for the intended application frequency
• Channel Capacitance and Crosstalk: These parameters determine signal fidelity and isolation performance
• Operating Temperature Range: The substitute must cover the required thermal operating window
• Compliance and Certifications: RoHS3 compliance and REACH status must be maintained

The ADG1414BCPZ-REEL7 from Analog Devices Inc. qualifies as a functional substitute based on matching circuit topology, 8-circuit configuration, and superior performance in bandwidth, crosstalk isolation, and operating temperature range. However, differences in supply voltage requirements, on-state resistance, and package form factor require engineering evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

The ADG1414BCPZ-REEL7 is an active product with current manufacturing support, making it suitable for applications requiring long-term component availability. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

Key considerations for substitution:

• The ADG1414BCPZ-REEL7 operates at higher supply voltages (12V single or ±4.5V to ±16.5V dual) compared to the TS2DDR2811ZXYR (3V to 3.6V single supply only). Circuit redesign may be required to accommodate this voltage difference.
• The substitute exhibits higher on-state resistance (11.5Ohm vs. 6Ohm) and channel capacitance (8pF vs. 2.5pF), which may impact signal attenuation and impedance matching in high-frequency applications.
• The ADG1414BCPZ-REEL7 provides superior crosstalk performance (-75dB @ 1MHz vs. -37dB @ 200MHz) and extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C).
• Package form factor differs (20-UFBGA vs. 24-WFQFN), requiring PCB layout modifications.
• The substitute's MSL rating of 3 (168 Hours) requires stricter moisture control during storage and handling compared to the original MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can the ADG1414BCPZ-REEL7 directly replace the TS2DDR2811ZXYR without circuit modifications?

A: Direct replacement is not possible due to fundamental differences in supply voltage requirements. The TS2DDR2811ZXYR operates from 3V to 3.6V, while the ADG1414BCPZ-REEL7 requires 12V single supply or ±4.5V to ±16.5V dual supply. Circuit redesign is necessary to accommodate the substitute part.

Q: What are the implications of the higher on-state resistance in the ADG1414BCPZ-REEL7?

A: The increased on-state resistance (11.5Ohm vs. 6Ohm) results in greater voltage drop across the switch during conduction. This affects signal amplitude and may require impedance matching adjustments in RF and high-frequency signal paths.

Q: Are there package compatibility issues between these parts?

A: Yes. The TS2DDR2811ZXYR uses a 20-UFBGA package, while the ADG1414BCPZ-REEL7 uses a 24-WFQFN Exposed Pad CSP package. PCB footprint redesign and layout modifications are required for substitution.

Q: How does the bandwidth difference affect application suitability?

A: The TS2DDR2811ZXYR provides 1.1GHz bandwidth, while the ADG1414BCPZ-REEL7 provides 256MHz bandwidth. For applications requiring operation above 256MHz, the substitute may introduce signal degradation. Applications operating below 256MHz are compatible with the substitute.

Q: What is the impact of the different moisture sensitivity levels?

A: The TS2DDR2811ZXYR has MSL 1 (unlimited shelf life), while the ADG1414BCPZ-REEL7 has MSL 3 (168-hour floor life after moisture exposure). The substitute requires more stringent moisture control during storage, handling, and assembly processes.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both the TS2DDR2811ZXYR and ADG1414BCPZ-REEL7 are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic components.