Analog Devices MAX4738 Product Info

• USB 1.1 Signal Switching
• 2ns (max) Differential Skew
• -3dB Bandwidth: >300MHz
• Low 20pF On-Channel Capacitance
• Low R_ON
  • 4.5Ω (max) (+3V Supply)
  • 3Ω (max) (+5V Supply)
• 0.4Ω (max) R_ON Match (+3V Supply)
• 1.2Ω (max) R_ON Flatness (+3V Supply)
• <0.5nA Leakage Current at +25°C
• High Off-Isolation: -55dB (10MHz)
• Low Crosstalk: -80dB (10MHz)
• Low Distortion: 0.03%
• +1.8V CMOS-Logic Compatible
• Single-Supply Operation from +1.8V to +5.5V
• Rail-to-Rail Signal Handling

The MAX4737/MAX4738/MAX4739 low-voltage, low on-resistance (R_ON), quad single-pole/single throw (SPST) analog switches operate from a single +1.8V to +5.5V supply. These devices are designed for USB 1.1 and audio switching applications.

The MAX4737/MAX4738/MAX4739 feature 4.5Ω R_ON (max) with 1.2Ω flatness and 0.4Ω matching between channels. These new switches feature guaranteed operation from +1.8V to +5.5V and are fully specified at 3V and 5V. These switches offer break-before-make switching (1ns) with t_ON <80ns and t_OFF <40ns at +2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to +3.6V supply.

These switches are packaged in a chip-scale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 2mm x 2mm area and has a 4 x 4 bump array with a bump pitch of 0.5mm. These switches are also available in a 14-pin TSSOP package.

Applications

• Audio/Video Signal Routing
• Battery-Operated Equipment
• Communications Circuits
• Data Acquisition Systems
• Low-Voltage Data-Acquisition Systems
• Sample-and-Hold Circuits