74HCT4851BQ

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.

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

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Features

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 V_CC = 2.0 V
- 215 Ω (typical) at V_CC = 3.0 V
- 120 Ω (typical) at V_CC = 3.3 V
- 76 Ω (typical) at V_CC = 4.5 V
- 59 Ω (typical) at V_CC = 6.0 V

Target applications

Analog multiplexing and demultiplexing
Digital multiplexing and demultiplexing
Signal gating

Parametrics

Type number	Product status	Configuration	V_CC (V)	Logic switching levels	R_ON (Ω)	R_ON(FLAT) (Ω)	f_(-3dB) (MHz)	THD (%)	Xtalk (dB)	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	Ψ_th(j-top) (K/W)	R_th(j-c) (K/W)	Package name
74HCT4851BQ	Production	SP8T-Z	4.5 - 5.5	TTL	240	-	-	-	-	very low	-40~125	80	4.7	47	DHVQFN16

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

Package

Type number	Orderable part number, (Ordering code (12NC))	Status	Marking	Package	Outline version	Reflow-/Wave soldering	Packing
74HCT4851BQ	74HCT4851BQ,115 ( 9352 857 32115 )	Active	HT4851	DHVQFN16 (SOT763-1)	SOT763-1		Reel 7" Q1/T1

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	RoHS / RHF	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74HCT4851BQ	74HCT4851BQ,115	74HCT4851BQ		84.9	6.62	1.51E8	1	1

Quality and reliability disclaimer

Series

74HC(T)4851 - 8-channel analog multiplexer/demultiplexer with injection-current effect control

Documentation (5)

File name	Title	Type	Date
74HC_HCT4851	8-channel analog multiplexer/demultiplexer with injection-current effect control	Data sheet	2018-08-24
AN11044	Pin FMEA 74HC/74HCT family	Application note	2019-01-09
HCT_USER_GUIDE	HC/T User Guide	User manual	1997-10-31
SOT763-1_115	DHVQFN16; Reel pack, SMD, 7" Q1/T1 standard product orientation Orderable part number ending ,115 or X Ordering code (12NC) ending 115	Packing	2016-07-05
SOT763-1	plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm body	Outline drawing	2018-11-14

Support

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Ordering, pricing & availability

Type number	Orderable part number	Ordering code (12NC)	Packing	Buy online
74HCT4851BQ	74HCT4851BQ,115	935285732115	Reel 7" Q1/T1	Order product

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