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Product Detailed Parameters
- Description：IC SWITCH SPDTX4 750MOHM 16TQFN
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：750mOhm
- Channel-to-Channel Matching (ΔRon)：50mOhm
- Voltage - Supply, Single (V+)：1.8V ~ 4.2V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：13ns, 38ns
- -3db Bandwidth：78MHz
- Charge Injection：50pC
- Channel Capacitance (CS(off), CD(off))：20pF, 20pF
- Current - Leakage (IS(off)) (Max)：1µA
- Crosstalk：-97dB @ 1MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-TQFN (3x3)
- Number of Circuits：4
- Grade：-
- Qualification：-
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Overview
The PI3A412ZHEX is a quad single-pole double-throw (SPDT) CMOS analog switch manufactured by Diodes Incorporated. It operates within a wide power supply voltage range of +1.6V to +4.4V and features a maximum on-resistance of 0.4Ω at a 2.7V supply. The device provides high off-isolation and crosstalk rejection, both rated at -65dB, with a typical switching speed of 20ns at 3.3V. It includes 3kV HBM ESD protection and logic inputs tolerant up to 5V independent of the supply voltage. Packaged in a 16-contact W-QFN3030-16 (TQFN) format measuring 3.0mm x 3.0mm, it supports an extended industrial temperature range from –40°C to +85°C.
Feature Summary
- Quad SPDT architecture designed for bus and analog signal routing applications
- Rail-to-rail switching capability across the full analog signal range
- Logic control inputs tolerate drive signals up to 5V regardless of VCC level
- Totally lead-free and fully RoHS compliant with halogen and antimony-free construction
Applications
- Cell Phones
- Portable Instrumentation
- Audio & Video Signal Routing
- JTAG Testing
- Computer Peripherals
Procurement Notes
Verify the ordering code matches PI3A412ZHEX to ensure the correct tape and reel packaging configuration. Confirm that the component meets specific environmental requirements such as RoHS 3 compliance if mandated by the target market regulations. Cross-reference the date code and assembly site markings against current manufacturing notifications to ensure consistency with recent production batches.
Selection Notes
Select this component when designing circuits requiring low on-resistance and fast switching speeds within a 1.6V to 4.4V supply envelope. Ensure the application logic levels align with the specified VIH and VIL thresholds for reliable operation. Consider the 3.0mm x 3.0mm package dimensions for space-constrained PCB layouts and verify thermal dissipation capabilities under continuous load conditions.
Part Context
This part belongs to the PI3A412 series of quad SPDT analog switches produced by Diodes Incorporated. It serves as a general-purpose solution for signal path management in portable electronics and communication devices. The ZHEX suffix specifically denotes the Pb-free, green variant housed in the W-QFN3030-16 package with tape and reel delivery.
Replacement Considerations
Direct pin-compatible replacements within the same family include the PI3A412ZLEX, which utilizes a standard TQFN-16 package instead of the W-QFN variant. Verify package footprint compatibility before substitution.
