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Product Detailed Parameters
- Description：IC SWITCH SPDT X 2 500MOHM 10QFN
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：500mOhm
- Channel-to-Channel Matching (ΔRon)：100mOhm
- Voltage - Supply, Single (V+)：1.65V ~ 4.3V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：55ns, 30ns
- -3db Bandwidth：55MHz
- Charge Injection：49pC
- Channel Capacitance (CS(off), CD(off))：5pF
- Current - Leakage (IS(off)) (Max)：20nA
- Crosstalk：-72dB @ 100kHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-UFQFN
- Supplier Device Package：10-QFN (1.8x1.4)
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The STG3684AUTR is a low-voltage analog switch IC manufactured by STMicroelectronics. It features two independent SPDT channels housed in a QFN-10 surface-mount package. The device operates on a single supply voltage ranging from 1.65 V to 4.3 V. Key electrical specifications include a maximum on-resistance of 500 mOhms, a maximum power dissipation of 1.12 W, and a maximum supply current of 50 nA. Switching performance is characterized by a maximum turn-on time of 55 ns and a maximum turn-off time of 30 ns. The component supports an operating temperature range from -40°C to +85°C.
Feature Summary
- Dual-channel SPDT configuration for signal routing
- Low voltage operation compatible with modern digital logic levels
- High-speed switching capabilities for data line applications
Applications
- Portable consumer electronics requiring low-power signal switching
- Battery-powered devices utilizing low-voltage logic interfaces
- Communication equipment signal path management
Procurement Notes
Verify the obsolete status of this component before design finalization. Confirm that the QFN-10 package dimensions match the target PCB footprint. Ensure the 1.65 V to 4.3 V supply range aligns with the system's available voltage rails. Check for RoHS compliance documentation if required by specific regional regulations.
Selection Notes
Select this part when dual SPDT switching is required within a compact QFN-10 footprint. It is suitable for designs constrained by low supply voltages below standard 5 V logic levels. Consider the 500 mOhm on-resistance limit for signal integrity requirements. Evaluate the 50 nA supply current against strict power budget constraints.
Part Context
This component belongs to the STG3684A series of low-voltage analog switches. It is designed for applications where space and power efficiency are critical. The series provides a solution for managing multiple signal paths in portable and battery-operated systems.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative dual SPDT switches from other manufacturers based on pinout and electrical specifications.
