The MAX4565/MAX4566/MAX4567 are low-voltage T-switches designed for switching RF and video signals from DC to 350MHz in 50Ω and 75Ω systems. The MAX4565 contains four normally open single-pole/single-throw (SPST) switches. The MAX4566 contains two dual SPST switches (one normally open, one normally closed.) The MAX4567 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 -83dB at 10MHz. They can handle rail-to-rail analog signals in either direction. On-resistance (60Ω max) is matched between switches to 2.5Ω max and is flat (2Ω 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.
关键特性
应用/使用
High 50Ω Off Isolation: -83dB at 10MHz
Low 50Ω Crosstalk: -87dB at 10MHz
DC to 350MHz -3dB Signal Bandwidth
60Ω Signal Paths with ±5V Supplies
2.5Ω Signal-Path Matching with ±5V Supplies
2Ω Signal-Path Flatness with ±5V Supplies
Low 50Ω Insertion Loss: 2.5dB at 100MHz
±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
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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