Signal Relay Switch for LF Switch Matrices

Signal Relays

The world‘s workhorse signal relay.

The MM1205 offers improved DC, analog, and RF performances by adopting the best design and manufacturing practices of the Menlo Micro signal relay product family.

MM1205

6 Channel SPST High Frequency Signal Relay

The MM1205 device is a 6-channel SPST High Frequency Signal Relay intended for signal switching applications for DC, analog, and RF circuits. Each channel provides low on-state contact resistance and insertion loss, high off-state isolation from DC to over 3 GHz with industry-leading cycle life. The flexibility of six SPST channels enables implementation of different signal topologies such as dual SP3T, triple SP2T, or a 2 x 3 matrix.

The MM1205 features an integrated driver and control logic circuit with SPI and GPIO interface control options, along with integrated charge pump to drive the gate. The device only requires 3.3 V and 5 V external supplies to operate.

Each channel can be individually controlled, and multiple devices can be daisy-chained together.

Datasheet Cad Drawings

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	MM1200	EM Signal Relay	Key Benefits
Size/Channel Density	72 mm³ 6 x 6 x 2 mm	Relays, Driver, Capacitors and Power Supplies	• 85% PCB area reduction • 75% Build height reduction • 120 g weight savings/100 DPDT
Switching Speed	<10 µs	3 ms	• 1000x switching speed improvement enables faster measurements
Reliable Performance	Mechanical: >3B Operations	Mechanical: 10M Operations	• 1000x reliability reduces system downtime
Control	Serial bus programs all circuits (daisy-chain) with shared high voltage supply	One signal line/one/driver per coil + power supply for drivers	• Digital control direct from MCU • Simplifies schematic & routing on PCB
Power Consumption	No hold power	100 relays have >10 W of hold power (need to drive coil)	• Saves 10-20 W power consumption per 100 relays • Reduced cooling requirements enables new form factors

MM1205 Specs

	Configuration Options	Carry Voltage*	Carry Current	R_ON	C_OFF	l_Leakage	Switch Speed	Frequency Range	RF Power	Insertion Loss	Controller	DC Supply	Lifetime	Packaging
MM1205	6x SPST 2x SP3T 3x SP2T 1x SP6T	30 V 38 V	1 A/CH 2 A / Package	1 Ω typical	45 fF typical	250 fA typical	17 µS typical	DC-3GHz	25 W (CW) 200 W (pulse)	0.5 dB 3 GHz	SPI / GPIO	3.3 V 5V	3B cycles typical	8 x 8 mm LGA

**30V with integrated charge pump, 38 V with external 100 V to power pin Vpp.

“This has the potential to change real stuff that you use every day. It's huge. I mean, it's really huge.”

JIM CABLE
FORMER CEO, PSEMI