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Product Detailed Parameters
- Description：IC MUX 8:1 195OHM 16SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Switch Circuit：-
- 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))：22pF
- Current - Leakage (IS(off)) (Max)：200nA
- Crosstalk：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The SN74HC4851DRE4 is an 8-channel analog multiplexer/demultiplexer manufactured by Texas Instruments in a 16-pin SOIC package. It operates on a single supply voltage ranging from 2V to 5.5V and features injection-current effect control, allowing disabled channel signals to exceed the supply range without affecting the active channel. Key electrical parameters include a maximum on-state resistance of 195Ω at 5V, propagation delay of 13.5ns at 5V, and off-state leakage current of ±1µA. The device supports a wide operating temperature range from -40°C to 125°C and provides high noise immunity with latch-up performance exceeding 100mA per JESD 78.
Feature Summary
- Injection-current effect control prevents signal interference when disabled channels experience voltages outside the normal supply range.
- Terminal compatibility with standard '4051 series devices simplifies design upgrades and replacements.
- Low power dissipation and low off-state leakage currents ensure efficient operation in battery-powered or sensitive applications.
Applications
- Analog and digital multiplexing and demultiplexing
- Data center switch signal routing
- Remote radio unit (RRU) monitoring
- Electricity metering systems
Procurement Notes
Verify the specific ordering suffix against the manufacturer's latest Package Option Addendum to confirm the exact tape-and-reel quantity and lead finish. Ensure the component status is listed as Active for production use. Cross-reference the RoHS compliance and moisture sensitivity level ratings with your assembly process requirements before finalizing procurement orders.
Selection Notes
Select this component when system designs require handling analog signals that may exceed the logic supply voltage on inactive lines. The integrated injection-current protection eliminates the need for external diode-resistor networks, reducing bill-of-materials complexity. Verify that the required on-state resistance and switching speed meet the specific bandwidth and signal integrity constraints of the target application.
Part Context
This part belongs to the SN74HC4851 family of CMOS analog switches. It serves as a direct functional replacement for legacy CD4051B and SN74HC4051 devices while offering superior protection against cross-coupling effects. The DRE4 suffix indicates a specific reel packaging configuration within the broader SOIC-16 product line offered by Texas Instruments.
Replacement Considerations
Direct pin-compatible substitutes include the SN74HC4051 and CD4051B, though these lack the internal injection-current protection circuitry. Automotive-grade alternatives such as the SN74HC4851-Q1 are available for applications requiring AEC-Q100 qualification. Always verify thermal resistance and package dimensions when transitioning between different manufacturers' offerings.
