Analog Devices MAX4685 Product Info

• 12-Bump, 0.5mm-Pitch UCSP
• NC Switch R_ON
  • 0.5Ω max (+2.7V Supply) (MAX4684)
  • 0.8Ω max (+2.7V Supply) (MAX4685)
• NO Switch R_ON
  • 0.8Ω max (+2.7V Supply)
• R_ON Match Between Channels
  • 0.06Ω (max)
• R_ON Flatness Over Signal Range
  • 0.15Ω (max)
• +1.8V to +5.5V Single-Supply Operation
• Rail-to-Rail Signal Handling
• 1.8V Logic Compatibility
• Low Crosstalk: -68dB (100kHz)
• High Off-Isolation: -64dB (100kHz)
• THD: 0.03%
• 50nA (max) Supply Current
• Low Leakage Currents
  • 1nA (max) at T_A = +25°C

The MAX4684/MAX4685 low on-resistance (R_ON), low-voltage, dual single-pole/double-throw (SPDT) analog switches operate from a single +1.8V to +5.5V supply. The MAX4684 features a 0.5Ω (max) R_ON for its NC switch and a 0.8Ω (max) R_ON for its NO switch at a +2.7V supply. The MAX4685 features a 0.8Ω max on-resistance for both NO and NC switches at a +2.7V supply.

Both parts feature break-before-make switching action (2ns) with t_ON = 50ns and t_OFF = 40ns at +3V. The digital logic inputs are 1.8V logic-compatible with a +2.7V to +3.3V supply.

The MAX4684/MAX4685 are packaged in the chipscale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 2.0mm x 1.50mm area. The 4 x 3 array of solder bumps are spaced with a 0.5mm bump pitch.

Applications

• Audio/Video Signal Routing
• Battery-Operated Equipment
• Cell Phones
• Communications Circuits
• Modems
• MP3 Players
• PCMCIA Cards
• Power Routing
• Relay Replacement
• Speaker-Headset Switching