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SN74HC4851

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5-V, 8:1, 1-channel analog multiplexer with injection-current effect control

Data sheet
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5-V, 8:1, 1-channel analog multiplexer with injection-current effect control

SN74HC4851

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Product details

Parameters

Configuration 8:1 Number of channels (#) 1 Power supply voltage - single (V) 2.5, 3.3, 5 Ron (Typ) (Ohms) 150 ON-state leakage current (Max) (µA) 1 Operating temperature range (C) -40 to 125 Features Injection current control Input/output continuous current (Max) (mA) 25 Rating Catalog CON (Typ) (pF) 6.7 Supply current (Typ) (uA) 2 open-in-new Find other Analog switches & muxes

Package | Pins | Size

PDIP (N) 16 181 mm² 19.3 x 9.4 SOIC (D) 16 59 mm² 9.9 x 6 TSSOP (PW) 16 22 mm² 5 x 4.4 TSSOP (PW) 16 22 mm² 4.4 x 5 TVSOP (DGV) 16 23 mm² 3.6 x 6.4 open-in-new Find other Analog switches & muxes

Features

  • Injection-Current Cross Coupling <1mV/mA (see Figure 1)
  • Low Crosstalk Between Switches
  • Pin Compatible With SN74HC4051, SN74LV4051A, and CD4051B
  • 2-V to 6-V VCC Operation
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

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Description

This eight-channel CMOS analog multiplexer/demultiplexer is pin compatible with the ’4051 function and, additionally, features injection-current effect control, which has excellent value in automotive applications where voltages in excess of normal supply voltages are common.

The injection-current effect control allows signals at disabled analog input channels to exceed the supply voltage without affecting the signal of the enabled analog channel. This eliminates the need for external diode/resistor networks typically used to keep the analog channel signals within the supply-voltage range.

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Technical documentation

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Type Title Date
* Data sheet SN74HC4851 datasheet (Rev. B) Jan. 21, 2004
Application note Multiplexers and Signal Switches Glossary (Rev. A) Jun. 09, 2021
Application note TMUX13xx-Q1 and SN74HC485x-Q1 Analog Multiplexer Injection Current Control (Rev. D) Apr. 06, 2020
Application note Selecting the Right Texas Instruments Signal Switch (Rev. B) Apr. 02, 2020
Selection guide Logic Guide (Rev. AB) Jun. 12, 2017
Application note Implications of Slow or Floating CMOS Inputs (Rev. D) Jun. 23, 2016
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
User guide LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
User guide Signal Switch Data Book (Rev. A) Nov. 14, 2003
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
Application note TI IBIS File Creation, Validation, and Distribution Processes Aug. 29, 2002
Application note CMOS Power Consumption and CPD Calculation (Rev. B) Jun. 01, 1997
Application note Designing With Logic (Rev. C) Jun. 01, 1997
Application note Input and Output Characteristics of Digital Integrated Circuits Oct. 01, 1996
Application note Live Insertion Oct. 01, 1996
Application note SN54/74HCT CMOS Logic Family Applications and Restrictions May 01, 1996
Application note Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc Apr. 01, 1996

Design & development

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Hardware development

INTERFACE ADAPTER Download
document-generic User guide
10
Description

The EVM-LEADED1 board allows for quick testing and bread boarding of TI's common leaded packages.  The board has footprints to convert TI's D, DBQ, DCT,DCU, DDF, DGS, DGV, and PW surface mount packages to 100mil DIP headers.     

Features
  • Quick testing of TI's leaded surface mount packages 
  • Allows leaded suface mount packages to be plugged into 100mil spaced bread board 
  • Supports TI's 8 most popular leaded packages with a single panel


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CAD/CAE symbols

Package Pins Download
PDIP (N) 16 View options
SOIC (D) 16 View options
TSSOP (PW) 16 View options
TVSOP (DGV) 16 View options

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