MAX4645

快速、低电压、2.5Ω、SPST、CMOS模拟开关


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说明

The MAX4645/MAX4646 single-pole, single-throw (SPST) analog switches feature a 2.5Ω typical on-resistance (RON) from a +5V supply. RON is flat (0.4Ω max) over the specified signal range. Each switch can handle rail-to-rail analog signals. Off-leakage current is 0.25nA max at +25°C. These analog switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automated test equipment or applications where current switching is required. They have low power requirements, require less board space, and are more reliable than mechanical relays.

These switches operate from a +1.8V to +5V single supply, making them ideal for use in battery-powered applications. The MAX4645/MAX4646 have fast switching speeds of 12ns turn-on time (tON) and 8ns turn-off time (tOFF).

The MAX4645 is a normally open (NO) switch, and the MAX4646 is a normally closed (NC) switch. Both are available in 5-pin SOT23, 6-pin SOT23, and 8-pin µMAX® packages.
MAX4645、MAX4646:引脚配置 MAX4645、MAX4646:引脚配置 放大+

关键特性

  • +1.8V to +5V Single-Supply Operation
  • Guaranteed RON
    • 2.5Ω max (5V supply)
    • 3.5Ω max (3V supply)
  • 1.8V Operation
    • RON 30Ω typ Over Temperature
    • tON 40ns typ, tOFF 20ns typ
  • Low RON Flatness: 0.4Ω max
  • Guaranteed Low Leakage Currents
    • ±0.25nA at +25°C
  • Rail-to-Rail Output Capability
  • TTL/CMOS-Logic Compatible
  • -75dB Off-Isolation at 1MHz
  • Low Distortion: 0.014% typ

应用

  • 音频/视频信号切换
  • 电池供电系统
  • 通信电路
  • 低电压数据采集系统
  • 继电器替代品
  • 采样保持电路

请查看具体的参数规格 Switches and Multiplexers ≤ 5V (165)


Part NumberConfig.# ChannelsNormal PositionVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSIGNAL
(V)
VSIGNAL
(V)
Dynamic Range (max)
(V)
RON
(Ω)
RFLAT(ON)
(Ω)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
(min)(max)(min)(max)(max)(max)(typ)(max)(max)(max)(See Notes)
MAX4645 SPST1Open1.85.505.55.52.50.10.25151053817
SOT23/5
SOT23/6
UMAX/8
$1.20 @1k
MAX4646 Closed
SOT23/5
SOT23/6
UMAX/8

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。
产品可靠性报告: MAX4645.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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