The MAX4684/MAX4685 low on-resistance (RON), 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) RON for its NC switch and a 0.8Ω (max) RON 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 tON = 50ns and tOFF = 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.
MAX4684、MAX4685:引脚配置 MAX4684、MAX4685:引脚配置 放大+


  • 12-Bump, 0.5mm-Pitch UCSP
  • NC Switch RON
    • 0.5Ω max (+2.7V Supply) (MAX4684)
    • 0.8Ω max (+2.7V Supply) (MAX4685)
  • NO Switch RON
    • 0.8Ω max (+2.7V Supply)
  • RON Match Between Channels
    • 0.06Ω (max)
  • RON 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 TA = +25°C


  • 音频/视频信号切换
  • 电池供电设备
  • 蜂窝电话
  • 通信电路
  • 调制解调器
  • MP3播放器
  • 电源切换
  • 继电器替代品
  • 扬声器-耳机开关

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


应用笔记 5299 选择合适的CMOS模拟开关
产品可靠性报告: MAX4684.pdf 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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应用笔记 5299 选择合适的CMOS模拟开关