MAX4578

高压、单8选1/双4选1,带有校准的多路复用器


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说明

The MAX4578/MAX4579 are high-voltage, 8-channel CMOS multiplexers. The MAX4578 and dual 4-channel MAX4579 are ideal for precision ADC calibration and system self-monitoring applications. These calibration multiplexers (cal-muxes) have precision resistor-dividers to generate accurate voltage ratios from an input reference voltage. The reference ratios include 15/4096 and 4081/4096 of the external reference voltage, accurate to 15 bits, and 1/2(V+) and 5/8(V+ - V-), accurate to 8 bits. The external reference voltage as well as ground can also be switched to the output. The MAX4578/MAX4579 have enable inputs and address latching. All digital inputs have 0.8V and 2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility when using a single +12V or dual ±15V supplies. Protection diodes at all inputs provide >2kV ESD rating.

The MAX4578/MAX4579 operate from a single +4.5V to +36V supply or from dual supplies of ±4.5V to ±20V. On-resistance (350Ω max) is matched between switches to 15Ω max. Each switch can handle Rail-to-Rail analog signals. The off-leakage current is 20pA at TA = +25°C and 1.25nA at TA = +85°C.

The MAX4578/MAX4579 are available in small 20-pin SSOP, SO, and DIP packages.
MAX4579:功能框图 MAX4579:功能框图 放大+

关键特性

  • On-Chip Gain and Offset Divider Networks Provide 15-Bit Accurate Output Ratios
  • On-Chip V+ to GND and V+ to V- Divider Networks Provide 8-Bit Accurate Output Ratios
  • 350Ω (max) RON
  • 12Ω (max) RON Matching Between Channels
  • 10pC (max) Charge Injection
  • Guaranteed 20pA Off-Leakage Current
  • Rail-to-Rail Signal Handling
  • Small 20-Pin SSOP, SO, DIP Packages

应用

  • 音频信号切换
  • 航空电子
  • 数据采集
  • 网络
  • 测试设备

请查看具体的参数规格 Switches and Multiplexers (Mid and High Voltage) (299)


Part NumberFunctionsConfig.# ChannelsVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSUPPLY (Dual)
(±V)
VSUPPLY (Dual)
(±V)
RON
(Ω)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
(min)(max)(min)(max)(max)(max)(max)(max)(See Notes)
MAX4578 Mux8-to-114.5364.5203500.054002203.5203
PDIP/20
SOIC (W)/20
SSOP/20
$4.05 @1k

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。

技术资料

应用笔记 5299 选择合适的CMOS模拟开关
申请可靠性报告: MAX4578 
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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相关资料

类型 编号 标题
应用笔记 5299 选择合适的CMOS模拟开关