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Product Detailed Parameters
- Description：IC SW SPDTX2 800MOHM 10MICROBUMP
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Bulk
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：800mOhm
- Channel-to-Channel Matching (ΔRon)：60mOhm
- Voltage - Supply, Single (V+)：1.8V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：30ns, 25ns
- -3db Bandwidth：11.5MHz
- Charge Injection：20pC
- Channel Capacitance (CS(off), CD(off))：208pF, 102pF
- Current - Leakage (IS(off)) (Max)：1µA
- Crosstalk：-81dB @ 100kHz
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-UFBGA, FCBGA
- Supplier Device Package：10-Microbump
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The NLAS4685FCT1G is a dual Single Pole Double Throw (SPDT) analog switch fabricated in sub-micron CMOS technology. It features ultra-low on-resistance of 0.8 ohms for both Normally Closed and Normally Open switches at 2.7V supply voltage. The device guarantees break-before-make switching to prevent driver shorting. It operates within a single power supply range of 1.8V to 5.5V and supports an operating temperature range from -55°C to 125°C. The component is housed in a compact 10-MicroBump package with dimensions of 2.0 x 1.5 mm.
Feature Summary
- Ultra-low on-resistance ensures minimal signal loss in high-frequency applications.
- Break-before-make switching mechanism prevents simultaneous connection of poles.
- Wide single-supply voltage operation supports various logic levels.
- Compact bumped die array facilitates dense PCB layout.
Applications
- RF signal routing in mobile devices
- Audio path switching in portable electronics
- Video signal selection in display interfaces
Procurement Notes
Verify the specific suffix, as the FCT1 variant may differ from the standard FCT1G regarding packaging or revision status. Confirm RoHS compliance and material declarations through official manufacturer documentation before integration. Check for end-of-life notices or recommended new design-in parts if long-term availability is required.
Selection Notes
Select this component when low insertion loss and precise signal integrity are critical for SPDT switching functions. Ensure the application voltage stays within the 1.8V to 5.5V range. Consider the 10-MicroBump package constraints during thermal and mechanical design phases.
Part Context
This part belongs to the NLAS468x family of ultra-low resistance analog switches designed for high-performance signal routing. It complements other onsemi components by providing reliable switching with minimal distortion in compact form factors suitable for modern consumer electronics.
Replacement Considerations
The NLAS5223MNR2G is listed as a manufacturer-recommended replacement for the obsolete NLAS4684FCT1G. Verify pin compatibility and electrical specifications before substituting any similar SPDT switches in existing designs.
