VXI Relay Multiplexer Modules

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A multiplexer connects one point to one of many other points. The primary use of a multiplexer is to switch multiple analog signals to a voltmeter or other measuring instrument. Break-before-make operation ensures that no two signals are ever connected to each other during scanning operations. It is possible to close multiple channels simultaneously with the SCPI CLOSe command on relay multiplexer modules (except the HP E1346A) but not on FET multiplexer modules.

Different multiplexers can switch one wire (high with a common low), two wires (high and low), or three wires (high, low, and guard or common). The choice of switching topology can be a trade-off between higher point count with single-ended switching or superior measurement accuracy (for example, three-wire guarded measurements).

In addition to the Relay Multiplexers shown here, HP also offers a number of FET Multiplexer Modules.


This product family includes


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Model # 	Description	Size,	Switch	Thermal	Max	Band-	Current	Closed	Lifetime
				Slots	Type	Offset	Volts 	width	Rating	Channel	(typ. # 
						(per ch)(DC)	(-3 dB)		Ohms	operations)
	 	 	 			 				(initial)	

HP E1343A	16-Channel,	B, 1	Reed	 <10µV	250V	10MHz	50mA	100±10% 10^8 no load, 
		3-wire			Relay						10^7 rated load
HP E1344A	16-Channel T/C,	B, 1	Reed	 <10µV	250V	10MHz	50mA	100±10% 10^8 no load, 
		3-wire			Relay						10^7 rated load
HP E1345A	16-Channel,	B, 1	Reed	 <4µV	120V	10MHz	50mA	100±10%	10^8 no load
		3-wire			Relay						10^7 rated load
HP E1346A	48-Channel,	B, 1	Reed	 <50µV	120V	10MHz	50mA	100±10% 10^8 no load, 
		1-wire			Relay						10^7 rated load
HP E1347A	16-Channel T/C,	B, 1	Reed	 <4µV	120V	10MHz	50mA	100±10% 10^8 no load, 
		3-wire			Relay						10^7 rated load
HP E1355A	8-Channel. 	B, 1	Reed	 <4µV	120V	10MHz	50mA	100±10% 10^8 no load, 
		120 Ohm Strain		Relay						10^7 rated load
HP E1356A	8-Channel, 	B, 1	Reed	 <4µV	120V	10MHz	50mA	100±10% 10^8 no load, 
		350 Ohm Strain		Relay						10^7 rated load
HP E1460A	64-Ch. 2-wire, 	C, 1	Armature <7µV	220V	3/10MHz	0.3, 1A	<1.5 	5x10^6 no load, 
		32-Ch.3-wire,		Latching					10^5 rated load
		or 128-Ch 1-wire	
HP E1476A	64-Ch. 3-wire	C, 1	Reed 	 <2µV	120V	100kHz	35mA	100±5%	10^8 no load, 
					Relay						2x10^5 rated load


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HP E1343A	16-Channel High Voltage Multiplexer
HP E1344A	16-Channel General Purpose and T/C Relay Multiplexer
HP E1345A	16-Channel Relay Multiplexer
HP E1346A	48-Channel Single-Ended Relay Multiplexer
HP E1347A	16-Channel Thermocouple Relay Multiplexer
HP E1355A	8-Channel 120 Ohm Strain Relay Multiplexer
HP E1356A	8-Channel 350 Ohm Strain Relay Multiplexer
HP E1460A	64-Channel Relay Multiplexer
HP E1476A	64-Channel T/C and Low-Offset Relay Multiplexer
HP E8462A       256-Channel Relay Multiplexer

Refer to detailed descriptions and ordering information for these
products on pages located at this web site.


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