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Product Detailed Parameters
- Description：IC SWITCH SPDT X 4 17OHM 16QSOP
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：17Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：6ns, 6ns
- -3db Bandwidth：830MHz
- Charge Injection：1.5pC
- Channel Capacitance (CS(off), CD(off))：5.6pF, 7.4pF
- Current - Leakage (IS(off)) (Max)：2nA
- Crosstalk：-100dB @ 5MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：16-QSOP
- Number of Circuits：4
- Grade：-
- Qualification：-
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Overview
The QS4A205QG is a multiplexer/demultiplexer IC from the Renesas QS4A205 series, featuring four SPDT switch circuits configured as two 4:1 MUX-DEMUX units. It operates within a supply voltage range of 4.75 V to 5.25 V and utilizes a 16-QSOP surface-mount package. Key electrical specifications include a maximum on-resistance of 17 Ohms, a -3dB bandwidth of 830 MHz, and typical turn-on/turn-off times of 6 ns. The device supports an operating temperature range from -40°C to +85°C, with a power dissipation rating of 700 mW.
Feature Summary
- Integrates four single-pole double-throw (SPDT) analog switches into a compact configuration for signal routing applications.
- Provides high-speed switching capabilities with nanosecond-level transition times suitable for dynamic signal paths.
- Offers wide bandwidth performance to maintain signal integrity across high-frequency operations.
Applications
- Signal routing in communication systems requiring multiplexing or demultiplexing functions.
- Data acquisition systems utilizing analog signal selection and path switching.
- Test and measurement equipment needing precise analog signal path control.
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required packaging and environmental standards. Confirm that the 16-QSOP package dimensions align with the target PCB footprint. Check for any recent product change notices regarding material composition or marking updates before finalizing procurement orders.
Selection Notes
Select this component when a 4.75 V to 5.25 V supply voltage is available and low on-resistance is critical for signal loss minimization. Ensure the design accommodates the 16-QSOP package size and thermal requirements given the 700 mW power dissipation limit. Verify that the 830 MHz bandwidth meets the highest frequency components present in the signal chain.
Part Context
This part belongs to the QS4A205 family of multiplexer switch ICs manufactured by Renesas Electronics. It serves as a specialized interface solution for managing multiple analog signals within electronic systems. The device complements other Renesas analog switches by offering a balanced combination of speed, isolation, and channel density in a standard small-outline package.
Replacement Considerations
Publicly listed similar substitutes include ADG774BRQZ and FSAL200MTCX. Verify pinout compatibility and electrical parameter alignment, such as on-resistance and bandwidth, before considering these alternatives. Note that package differences may require PCB layout adjustments.
