MAXIM MAX4547CSE+

The MAX4545/MAX4546/MAX4547 are low-voltage T-switches designed for switching RF and video signals from DC to 300MHz in 50Ω and 75Ω systems. The MAX4545 contains four normally open single-pole/single-throw (SPST) switches. The MAX4546 contains two dual SPST switches (one normally open, one normally closed.) The MAX4547 contains two single-pole/double-throw (SPDT) switches. Each switch is constructed in a “T” configuration, ensuring excellent high-frequency off isolation and crosstalk of -80dB at 10MHz. They can handle Rail-to-Rail analog signals in either direction. On-resistance (20Ω max) is matched between switches to 1Ω max and is flat (0.5Ω max) over the specified signal range, using ±5V supplies. The off leakage current is less than 5nA at +25°C and 50nA at +85°C. These CMOS switches can operate with dual power supplies ranging from ±2.7V to ±6V or a single supply between +2.7V and +12V. All digital inputs have 0.8V/2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility when using ±5V or a single +5V supply.

• Low 50Ω Insertion Loss: -1dB at 100MHz
• High 50Ω Off Isolation: -80dB at 10MHz
• Low 50Ω Crosstalk: -80dB at 10MHz
• DC to 300MHz -3dB Signal Bandwidth
• 20Ω Signal Paths with ±5V Supplies
• 1Ω Signal-Path Matching with ±5V Supplies
• 0.5Ω Signal-Path Flatness with ±5V Supplies
• ±2.7V to ±6V Dual Supplies +2.7V to +12V Single Supply
• Low Power Consumption: <1μW
• Rail-to-Rail Bidirectional Signal Handling
• Pin Compatible with Industry-Standard DG540, DG542, DG643

• 2kV ESD Protection per Method 3015.7

• TTL/CMOS-Compatible Inputs with Single +5V or ±5V

• RF Switching
• Video Signal Routing
• High-Speed Data Acquisition
• Test Equipment
• ATE Equipment
• Networking