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
Applications/Uses
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
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