Analog Switch Dual SPST 9-Pin UCSP

The MAX4721/MAX4722/MAX4723 low-voltage, low on-resistance (RON), dual 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 MAX4721/MAX4722/MAX4723 feature 4.5O RON (max) with 1.2O flatness and 0.3O 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 tON OFF These switches are packaged in a chip-scale package (UCSP), significantly reducing the required PC board area. The chip occupies only a 1.52mm x 1.52mm area and has a 3 x 3 bump array with a bump pitch of 0.5mm. These switches are also available in an 8-pin µMAX package.

• USB 1.1 Signal Switching
• <2ns Differential Skew
• -3dB Bandwidth: >300MHz
• Low 15pF On-Channel Capacitance
• Low R_ON (max) Switches
  • 4.5O (max) (+3V Supply)
  • 3O (max) (+5V Supply)

0.3O (max) R_ON Match (+3V Supply)

1.2O (max) R_ON Flatness (+3V Supply)

<0.5nA Leakage Current at TA = +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