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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 15OHM SC70-6
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：15Ohm
- Channel-to-Channel Matching (ΔRon)：100mOhm
- Voltage - Supply, Single (V+)：1.65V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：5.7ns, 3.8ns
- -3db Bandwidth：300MHz
- Charge Injection：7pC
- Channel Capacitance (CS(off), CD(off))：5.2pF
- Current - Leakage (IS(off)) (Max)：1µA
- Crosstalk：-54dB @ 10MHz
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：6-TSSOP, SC-88, SOT-363
- Supplier Device Package：SC-70-6
- Number of Circuits：1
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The 1P1G3157QDCKRQ1 is an automotive-grade single-pole double-throw (SPDT) analog switch manufactured by Texas Instruments. It operates within a supply voltage range of 1.65 V to 5.5 V and features a maximum on-resistance of 15 ohms with a channel-to-channel matching of 100 milliohms. The device supports a -3 dB bandwidth of 300 MHz and offers low charge injection of 7 pC. Packaged in a compact SC-70-6 surface-mount format, it functions across an extended temperature range from -40°C to +125°C. Key electrical specifications include a maximum leakage current of 1 µA and switching times of 5.7 ns for turn-on and 3.8 ns for turn-off.
Feature Summary
- Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments
- Low on-resistance configuration ensuring minimal signal attenuation in data paths
- High-speed signal routing capability supported by wide bandwidth and fast switching transitions
Applications
- Signal path selection in automotive infotainment systems
- Multiplexing sensor inputs in automotive control modules
- Protecting sensitive interfaces in automotive communication networks
Procurement Notes
Verify the complete part number including the QDC suffix to ensure correct package type and tape-and-reel orientation. Confirm AEC-Q100 certification status if specific automotive grade requirements are mandated by the design specification. Cross-reference the datasheet revision date to ensure compatibility with latest thermal and electrical guidelines.
Selection Notes
Select this component when designing circuits requiring bidirectional analog signal routing with low distortion. The 15-ohm on-resistance suits applications where signal integrity is critical over short distances. Ensure the operating voltage remains within the 1.65 V to 5.5 V window to maintain specified performance metrics and prevent device damage.
Part Context
This device belongs to the 1P1G315x family of single SPDT analog switches designed for space-constrained automotive PCB layouts. It serves as a compact alternative to larger multiplexer packages while maintaining high-performance signal switching characteristics required in modern vehicle electronics architectures.
Replacement Considerations
Direct substitutes include other AEC-Q100 qualified SPDT switches from Texas Instruments such as the SN74LVC1G3157 series. Verify pinout compatibility and on-resistance specifications before swapping to ensure circuit performance remains within acceptable limits.
