ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC MUX 8:1 195OHM 16SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：-
Download product information
Overview
The SN74HC4851DRG4 is an eight-channel analog multiplexer/demultiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 5.5V and features injection-current effect control, allowing signals at disabled channels to exceed the supply voltage without affecting enabled channels. The device is housed in a 16-pin SOIC package. Key electrical parameters include a maximum on-state resistance (RON) of 670Ω at 2V and 345Ω at 3.3V. Propagation delay (tPD) ranges from 19.5ns at 2V to 13.5ns at 5V. The operating temperature range spans from -40°C to +125°C.
Feature Summary
- Injection-current effect control prevents signal interference when disabled channel voltages exceed the supply rail.
- Terminal compatible with SN74HC4051, SN74LV4051A, and CD4051B devices for direct pin replacement.
- Low crosstalk between switches ensures signal integrity across multiple channels.
Applications
- Analog and digital multiplexing and demultiplexing
- Diagnostics and monitoring systems
- Data center switch infrastructure
- Remote radio unit (RRU) applications
- Electricity metering
Procurement Notes
Verify the specific ordering suffix 'DRG4' corresponds to the SOIC-16 package and tape-and-reel quantity of 2500 units as listed in the Package Option Addendum. Confirm RoHS compliance and lead finish specifications (NIPDAU) match project requirements. Check current production status, as some variants are marked NRND while others remain active.
Selection Notes
Select this component when high-voltage signals on inactive channels must not disturb active paths, eliminating external protection networks. Ensure the application voltage falls within the 2V to 5.5V range. Verify that the SOIC-16 package dimensions fit the PCB layout constraints. Consider thermal resistance characteristics if operating near the upper temperature limit.
Part Context
This part belongs to the SN74HC4851 family of 8-channel analog multiplexers. It serves as a CMOS alternative to legacy bipolar devices like the CD4051B. The DRG4 suffix indicates a specific manufacturing variant within the broader SN74HC4851 product line, distinguished by its surface-mount packaging and environmental compliance attributes.
Replacement Considerations
Direct terminal-compatible replacements include SN74HC4051, SN74LV4051A, and CD4051B. Note that these alternatives may lack the injection-current effect control feature, potentially requiring additional external circuitry to handle over-voltage conditions on disabled channels.
FAQ
How does the injection-current effect control benefit automotive applications?
It allows signals at disabled analog input channels to exceed the supply voltage without affecting the signal of the enabled analog channel, which is critical in automotive environments where voltage spikes are common.
What is the maximum off-state leakage current?
At 5V supply, the maximum off-state switch leakage current for any one channel is ±4µA, and for the common channel, it is ±4µA across the full temperature range.
Is this device suitable for replacing a standard HC4051?
Yes, it is terminal compatible with the SN74HC4051, but it offers superior performance by eliminating the need for external diode/resistor networks typically required to suppress injection current.
