MAX4638：3.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers

Lowest On-Resistance 8:1 and Dual 4:1 Multiplexers

The MAX4638/MAX4639 are single 8:1 and dual 4:1 CMOS analog multiplexers/demultiplexers (muxes/demuxes). Each mux operates from a single +1.8V to +5V supply or dual ±2.5V supplies. These devices feature 3.5Ω on-resistance (RON) when powered with a single +5V supply and have -75dB off-isolation and -85dB crosstalk from the output to each off channel. The switching times are 18ns tON and 7ns tOFF. They feature a -3dB 85MHz bandwidth and a guaranteed 0.25nA leakage current at +25°C. A +1.8V to +5.5V operating range makes the MAX4638/MAX4639 ideal for battery-powered, portable instruments. All channels guarantee break-before-make switching. These parts feature bidirectional operation and can handle rail-to-rail analog signals. All control inputs are TTL/CMOS-logic compatible. Decoding is in standard BCD format, and an enable input is provided to simplify cascading of devices. These devices are available in small 16-pin thin QFN, TSSOP, and SO packages, as well as a 20-pin TQFN package.

Key Features

Guaranteed RON
- 3.5Ω (+5V or ±2.5V Supplies)
- 6Ω (+3V Supply)
Guaranteed 0.4Ω RON Match Between Channels
Guaranteed 1Ω RON Flatness Over Signal Range
Guaranteed Low Leakage Currents Switching Times: tON = 18ns, tOFF = 7ns
- 0.25nA at +25°C
+1.8V to +5.5V Single-Supply Operation
±2.5V Dual-Supply Operation
Rail-to-Rail Signal Handling
TTL/CMOS-Logic Compatible
Crosstalk: -80dB (1MHz)
Off-Isolation: -60dB (10MHz)

MAX4638, MAX4639: Pin Configurations/Functional Diagrams

Applications/Uses

Audio/Video Signal Routing
Automated Test Equipment (ATE)
Battery-Powered Equipment
Low-Voltage Data-Acquisition Systems
Medical Equipment
Relay Replacement

DataSheet

title	Download file
MAX4638-MAX4639 Data Sheet	MAX4638-MAX4639.pdf

Parametrics

Part Number	Config.	Channels	V_SUPPLY (Single) (V)	V_SUPPLY (Single) (V)	V_SUPPLY (Dual) (±V)	V_SUPPLY (Dual) (±V)	V_SIGNAL (V)	V_SIGNAL (V)	Dynamic Range (max) (V)	R_ON (Ω)	R_FLAT(ON) (Ω)	R_FLAT(ON) (Ω)	Bandwidth (MHz)	I_L(OFF) (nA)	t_ON (ns)	t_OFF (ns)	Q_INJECTION (pC)	C_ON (pF)	C_OFF (pF)	Package/Pins	Budgetary Price
Part Number	Config.	Channels	min	max	min	max	min	max	max	max	typ	max	Bandwidth (MHz)	max	min	max	Q_INJECTION (pC)	C_ON (pF)	C_OFF (pF)	Package/Pins	See Notes
MAX4638	8-to-1	1	1.8	5.5	2.5	2.5	-2.75	5.5	5.5	3.5	0.75	1	50	0.01	18	7	13	40	9	SOIC(N)/16 TQFN/16 TSSOP/16	$2.59 @1k
MAX4639	4-to-1	2	1.8	5.5	2.5	2.5	-2.75	5.5	5.5	3.5	0.75	1	85	0.01	18	7	13	20	9	SOIC(N)/16 TQFN/16 TSSOP/16	$2.59 @1k

Quality and Environmental Data

MAX4638.pdf

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX4638ESE	No Longer Available	MAX4638ESE+	SOIC(N),;16 pin;62 mm²	-40°C to +85°C	No
MAX4638ESE+	Active		SOIC(N),;16 pin;62 mm²	-40°C to +85°C	Lead Free
MAX4638ESE+T	Active		SOIC(N),;16 pin;62 mm²	-40°C to +85°C	Lead Free
MAX4638ESE-T	No Longer Available	MAX4638ESE+T	N.SO;16 pin	-40°C to +85°C	See data sheet
MAX4638ETE	No Longer Available	MAX4638ETE+	TQFN,;16 pin;16.8 mm²	-40°C to +85°C	No
MAX4638ETE+	Active		TQFN,;16 pin;16.8 mm²	-40°C to +85°C	Lead Free
MAX4638ETE+T	Active		TQFN,;16 pin;16.8 mm²	-40°C to +85°C	Lead Free
MAX4638ETE-T	No Longer Available	MAX4638ETE+T	QFN;	-40°C to +85°C	See data sheet
MAX4638EUE	No Longer Available	MAX4638EUE+	TSSOP,;16 pin;33.4 mm²	-40°C to +85°C	No
MAX4638EUE+	Active		TSSOP,;16 pin;33.4 mm²	-40°C to +85°C	Lead Free
Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX4638EUE+T	Active		TSSOP,;16 pin;33.4 mm²	-40°C to +85°C	Lead Free
MAX4638EUE-T	No Longer Available	MAX4638EUE+T	TSSOP,;16 pin;33.4 mm²	-40°C to +85°C	No