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MAX4589：Low-Voltage, High-Isolation, Dual 2-Channel RF Video Multiplexer

The MAX4589 low-voltage, dual 2-channel multiplexer is designed for RF and video signal processing at frequencies up to 200MHz in 50Ω and 75Ω systems. On-chip functions are controlled through either a parallel interface or an SPI™/QSPI™/MICROWIRE™ serial interface. Each channel of the MAX4589 is designed using a "T" switch configuration, ensuring excellent high-frequency off-isolation. The MAX4589 has low on-resistance of 60Ω max, with an on-resistance match across all channels of 4Ω max. Additionally, on-resistance is flat across the specified signal range (2Ω max). The off-leakage current is under 1nA at TA = +25°C, and less than 10nA at TA = +85°C. The MAX4589 operates from single +2.7V to +12V or dual ±2.7V to ±6V supplies. When operating with a positive supply of +5V, the inputs maintain TTL/CMOS- level compatibility. The MAX4589 is available in 20-pin DIP, wide SO, and SSOP packages.

Key Features Low Insertion Loss: < -2.5dB up to 100MHz High Off-Isolation: -74dB at 10MHz Low Crosstalk: < -70dB up to 10MHz 20MHz -0.1dB Signal Bandwidth 200MHz -3dB Signal Bandwidth 60Ω (max) On-Resistance with ±5V Supplies 4Ω (max) On-Resistance Matching with ±5V Supplies 2Ω (max) On-Resistance Flatness with ±5V Supplies +2.7V to +12V Single-Supply Operation ±2.7V to ±6V Dual-Supply Operation Low Power Consumption: < 20µW Rail-to-Rail, Bidirectional Signal Handling Parallel or SPI/QSPI/MICROWIRE-Compatible Serial Interface > ±2kV ESD Protection per Method 3015.7 TTL/CMOS-Compatible Inputs with VL = +5V

MAX4589: Pin Configuration Applications/Uses Automated Test Equipment (ATE) High-Speed Data Acquisition Networking RF Switching Video Signal Routing

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