8-Channel, CMOS RF Video Multiplexer

Maxim's MAX310 and MAX311 are CMOS monolithic analog multiplexer/demultiplexers designed for use with signal frequencies ranging from DC through video. The MAX310 is a 1-of-8 multiplexer while the MAX311 is for 2-of-8 (4 channel differential) applications.

A key feature of the MAX310/311 is extremely high off isolation at high frequencies. The isolation of each off channel to the output is guaranteed to be - 66dB at 5MHz. The input signal range is +12V to -15V with ±15V power supplies while power consumption is typically 1.1 mW.

All control inputs are fully compatible with TTL and CMOS logic. Decoding is in standard BCD format and an Enable input is also provided to simplify cascading of devices. The MAX310 and MAX311 will operate with nearly any power supply combination which totals less than 36V (V+ - V-) including single supply operation at +12V, +15V, and +28V with V-connected to GND.

APPLICATIONS

* Video Switching and Crosspoint Systems

* Automatic Test Equipment

* Medical Ultrasound Phased Array Systems

* Data Logging of High Frequency Signals

* Digital Signal Processing

* -76dB Typical Off Isolation at 5MHz

* -63dB Typical "All Channel Off" Isolation at 5MHz

* Phase Shift Match Between Channels, <1 ° at 5MHz

* Break-Before-Make Switching