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Product Detailed Parameters
- Description：SN74HC4851QPWRRBG4
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- Switch Circuit：SP8T - Open/Closed
- Multiplexer/Demultiplexer Circuit：8:01
- On-State Resistance (Max)：195Ohm
- Channel-to-Channel Matching (ΔRon)：3Ohm
- Voltage - Supply, Single (V+)：2V ~ 6V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：78ns, 78ns
- -3db Bandwidth：-
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：6.7pF, 22pF
- Current - Leakage (IS(off)) (Max)：200nA
- Crosstalk：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-TSSOP
- Number of Circuits：1
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The SN74HC4851QPWRRBG4 is an automotive-grade, 8-channel analog multiplexer/demultiplexer manufactured by Texas Instruments. It operates on a single supply voltage ranging from 2V to 6V and features a maximum on-resistance of 195 ohms with channel-to-channel matching of 3 ohms. The device utilizes a 16-TSSOP package and supports surface-mount installation. It is qualified under AEC-Q100 standards for automotive applications, ensuring reliability in harsh environments. Switching times are specified at a maximum of 78ns for both turn-on and turn-off periods, with a leakage current of up to 200nA and channel capacitance of 22pF.
Feature Summary
- Automotive qualification compliant with AEC-Q100 standards for reliable operation in vehicle environments
- Single-supply operation capability within a 2V to 6V voltage range
- Low on-resistance characteristics with tight channel-to-channel matching for signal integrity
- Integrated injection-current effect control to minimize charge injection artifacts
Applications
- Automotive data acquisition systems requiring multi-channel signal routing
- Vehicle sensor interface circuits for analog signal multiplexing
- In-vehicle communication modules utilizing analog switch functions
- Automotive test and measurement equipment interfaces
Procurement Notes
Verify the specific suffix 'BG4' against official Texas Instruments documentation to confirm tape-and-reel packaging specifications and any unique manufacturing lot codes. Ensure that the AEC-Q100 qualification status aligns with your specific automotive grade requirements. Cross-reference the 16-TSSOP footprint dimensions with your PCB design guidelines to guarantee mechanical compatibility during assembly processes.
Selection Notes
Select this component when automotive reliability and AEC-Q100 certification are mandatory for the application. Choose this part over non-automotive variants if operating conditions exceed standard industrial temperature ranges or require higher robustness against voltage transients. Consider the 195-ohm on-resistance limit when designing for low-voltage signal paths where voltage drop across the switch must be minimized to preserve signal accuracy.
Part Context
This part belongs to the SN74HC4851-Q1 family of 8-channel analog multiplexers designed specifically for automotive electronics. It shares functional compatibility with legacy devices like the CD4051 but offers improved performance metrics and modern packaging options. The QPWRG4Q1 designation indicates its automotive grade status, distinguishing it from commercial counterparts while maintaining pin-out compatibility for easier design upgrades.
Replacement Considerations
SN74HC4851QPWRG4Q1 is a verified substitute offering identical electrical characteristics and automotive qualification. SN74HC4851PWR serves as a non-automotive alternative with similar functionality but lacks AEC-Q100 certification. Verify package compatibility and thermal performance before substituting with commercial-grade variants in automotive designs.
