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74HC4851D

8-channel analog multiplexer/demultiplexer with injection-current effect control

The 74HC4851; 74HCT4851 are high-speed Si-gate CMOS devices and are specified in compliance with JEDEC standard no. 7A.

The 74HC4851; 74HCT4851 are 8-channel analog multiplexers/demultiplexers with three digital select inputs (S0 to S2), an active-LOW enable input (E), eight independent inputs/outputs (Y0 to Y7) and a common input/output (Z). The devices feature injection-current effect control, which has excellent value in automotive applications where voltages in excess of the supply voltage are common.

With E LOW, one of the eight switches is selected (low impedance ON-state) by S0 to S2. With E HIGH, all switches are in the high-impedance OFF-state, independent of S0 to S2.

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.

Alternatives

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HC4851D 74HC4851D,118 935282083118 SOT109-1 Order product
74HC4851D 74HC4851D,112 935282083112 SOT109-1 Order product

Features and benefits

  • Injection-current cross coupling < 1 mV/mA
  • Wide supply voltage range from 2.0 V to 6.0 V for 74HC4851
  • ESD protection:
    • HBM JESD22-A114E exceeds 2000 V
    • CDM JESD22-C101C exceeds 1000 V
  • Latch-up performance exceeds 100 mA per JESD 78 Class II level A
  • Low ON-state resistance:
    • 400 Ω (typical) at VCC = 2.0 V
    • 215 Ω (typical) at VCC = 3.0 V
    • 120 Ω (typical) at VCC = 3.3 V
    • 76 Ω (typical) at VCC = 4.5 V
    • 59 Ω (typical) at VCC = 6.0 V

Applications

  • Analog multiplexing and demultiplexing
  • Digital multiplexing and demultiplexing
  • Signal gating

Parametrics

Type numberProduct statusConfigurationVCC (V)Logic switching levelsRON (Ω)RON(FLAT) (Ω)f(-3dB) (MHz)THD (%)Xtalk (dB)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC4851DProductionSP8T-Z2.0 - 10.0CMOS220----very low-40~125803.938SO16

(-) dash denotes: "Parameter value not specified for this product"

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74HC4851D74HC4851D,118
( 9352 820 83118 ) 		Active74HC4851D
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1
74HC4851D,112
( 9352 820 83112 ) 		Active74HC4851DBulk Pack

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
74HC4851D74HC4851D,11874HC4851D84.96.621.51E811
74HC4851D74HC4851D,11274HC4851D84.96.621.51E811
Quality and reliability disclaimer

Series

Documentation (6)

File nameTitleTypeDate
74HC_HCT48518-channel analog multiplexer/demultiplexer with injection-current effect controlData sheet2018-08-24
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
hc485174HC4851 IBIS modelIBIS model2018-09-12
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08

Support

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Models

File nameTitleTypeDate
hc485174HC4851 IBIS modelIBIS model2018-09-12

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HC4851D74HC4851D,118935282083118Reel 13" Q1/T1Order product
74HC4851D74HC4851D,112935282083112Bulk PackOrder product

Sample

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Sample orders normally take 2-4 days for delivery.

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