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Product Detailed Parameters
- Description：IC SWITCH SPDTX2 350MOHM 10UQFN
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：350mOhm (Typ)
- Channel-to-Channel Matching (ΔRon)：5mOhm
- Voltage - Supply, Single (V+)：1.65V ~ 4.3V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：270µs, 65µs (Typ)
- -3db Bandwidth：25MHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：6pF
- Current - Leakage (IS(off)) (Max)：-
- Crosstalk：-85dB @ 30kHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-UFQFN
- Supplier Device Package：10-UQFN (1.8x1.4)
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The PI3A288ZMEX is a dual single-pole double-throw (SPDT) analog switch manufactured by Diodes Incorporated. It operates on a single supply voltage ranging from 1.65V to 4.3V and features an ultra-low on-resistance of 0.35Ω at 1.8V. The device supports negative signal handling with a DC input voltage range extending down to -3.1V. Key electrical characteristics include a maximum supply current of 110μA, off-isolation of -85dB at 30kHz, and channel-to-channel crosstalk of -85dB. It provides a -3dB bandwidth of 255MHz and total harmonic distortion plus noise of -110dB. The component is housed in a 10-contact UQFN package.
Feature Summary
- Ultra-low total harmonic distortion for high-fidelity audio applications
- Negative signal handling capability extending below ground potential
- Integrated slew rate control pin for soft-start and soft-stop functionality
- Low on-resistance matching between channels for signal integrity
Applications
- Audio connector switching
- Negative swing amplifier circuits
- Portable multimedia devices
- Mobile phones and tablets
Procurement Notes
Verify the specific ordering suffix against official documentation before procurement. The 'X' suffix indicates tape and reel packaging, while the 'E' suffix denotes lead-free and green material compliance. Confirm that the required package type matches the design constraints and ensure all regulatory requirements are met prior to finalizing orders.
Selection Notes
Select this component when low distortion and negative voltage support are critical. Ensure the operating voltage remains within the 1.65V to 4.3V range. Consider the external capacitor requirements for the SSCAP pin if soft-start or soft-stop timing adjustments are necessary for the specific application environment.
Part Context
This part belongs to the PI3A288 series of analog switches designed for portable electronics. It is specifically engineered to handle audio signals with minimal interference. The ZM package code identifies the 10-contact Ultra-thin Quad Flat No-Lead form factor suitable for space-constrained designs.
Replacement Considerations
Consult the manufacturer's official documentation for verified substitute part numbers. Do not assume functional equivalence based solely on package dimensions or pin counts without verifying electrical parameters and logic compatibility.
FAQ
What is the purpose of the SSCAP pin?
The SSCAP pin controls the slew rate, enabling soft-start and soft-stop operations to reduce click and pop noises during switching events.
Can the PI3A288ZMEX handle negative voltages?
Yes, the device supports negative signal handling with a DC input voltage range extending down to -3.1V.
What is the typical on-resistance value?
The typical on-resistance is 0.35Ω when measured at a supply voltage of 1.8V.
