General Description

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 chan nels of 4Ωmax. Additionally, on-resistance is flat across the specified signal range (2Ωmax). The off leakage current is under 1nA at TA= +25°C, and less

than 10nA at TA= +85°C.

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