Key Specifications

 

The UM3157 is an advanced CMOS analog switch fabricated with silicon gate CMOS technology. It achieves very low propagation delay and R_DS(ON) resistances while maintaining CMOS low power dissipation. These make it ideal for portable and battery power applications.

The switch conducts signals within power rails equally well in both directions when on, and blocks up to the power supply level when off. Break-before-make is guaranteed.

The select pin has over-voltage protection that allows voltages above V_CC, up to 6.5V to be present on the pin without damage or disruption of operation of the part, regardless of the operating voltage.

The UM3157 can maintain low power consumption for rail-to-rail signaling as long as the control signal input is held at a level that is greater than V_IH minimum and less than V_IL maximum by improving the control circuitry input buffer. so the part can be used in mixed voltage rail environments, especially services the mobile handset applications very well allowing for the direct interface with baseband processor general purpose I/Os, and it is no longer necessary to have the control input equal to V_CC to maintain low power consumption

 

 

- Control Inputs are 5V Tolerant

- Low Charge Injection

- Excellent ON-State Resistance Matching

- Low Total Harmonic Distortion (THD)

- 1.65V to 5.5V Single-Supply Operation

- ESD Performance: Human Body Model>2kV; Machine Model>200V

- SC70-6/SC88/SOT363 Package

- Pb-Free Package

 

- Sample-and-Hold Circuits

- Battery-Powered Equipment

- Audio and Video Signal Routing

- Communication Circuits

 

 

Select Input	Function
L	B0 Connected to A
H	B1 Connected to A

Part Number	Packaging Type	Marking Code	Shipping Qty
UM3157	SOT363	B7A	3000pcs/7Inch Tape & Reel